Search Results

Search found 18379 results on 736 pages for 'output buffering'.

Page 252/736 | < Previous Page | 248 249 250 251 252 253 254 255 256 257 258 259 | Next Page >

Built-in GZip/Deflate Compression on IIS 7.x

- by Rick Strahl

IIS 7 improves internal compression functionality dramatically making it much easier than previous versions to take advantage of compression that’s built-in to the Web server. IIS 7 also supports dynamic compression which allows automatic compression of content created in your own applications (ASP.NET or otherwise!). The scheme is based on content-type sniffing and so it works with any kind of Web application framework. While static compression on IIS 7 is super easy to set up and turned on by default for most text content (text/*, which includes HTML and CSS, as well as for JavaScript, Atom, XAML, XML), setting up dynamic compression is a bit more involved, mostly because the various default compression settings are set in multiple places down the IIS –> ASP.NET hierarchy. Let’s take a look at each of the two approaches available: Static Compression Compresses static content from the hard disk. IIS can cache this content by compressing the file once and storing the compressed file on disk and serving the compressed alias whenever static content is requested and it hasn’t changed. The overhead for this is minimal and should be aggressively enabled. Dynamic Compression Works against application generated output from applications like your ASP.NET apps. Unlike static content, dynamic content must be compressed every time a page that requests it regenerates its content. As such dynamic compression has a much bigger impact than static caching. How Compression is configured Compression in IIS 7.x is configured with two .config file elements in the <system.WebServer> space. The elements can be set anywhere in the IIS/ASP.NET configuration pipeline all the way from ApplicationHost.config down to the local web.config file. The following is from the the default setting in ApplicationHost.config (in the %windir%\System32\inetsrv\config forlder) on IIS 7.5 with a couple of small adjustments (added json output and enabled dynamic compression): <?xml version="1.0" encoding="UTF-8"?> <configuration> <system.webServer> <httpCompression directory="%SystemDrive%\inetpub\temp\IIS Temporary Compressed Files"> <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" staticCompressionLevel="9" /> <dynamicTypes> <add mimeType="text/*" enabled="true" /> <add mimeType="message/*" enabled="true" /> <add mimeType="application/x-javascript" enabled="true" /> <add mimeType="application/json" enabled="true" /> <add mimeType="*/*" enabled="false" /> </dynamicTypes> <staticTypes> <add mimeType="text/*" enabled="true" /> <add mimeType="message/*" enabled="true" /> <add mimeType="application/x-javascript" enabled="true" /> <add mimeType="application/atom+xml" enabled="true" /> <add mimeType="application/xaml+xml" enabled="true" /> <add mimeType="*/*" enabled="false" /> </staticTypes> </httpCompression> <urlCompression doStaticCompression="true" doDynamicCompression="true" /> </system.webServer> </configuration> You can find documentation on the httpCompression and urlCompression keys here respectively: http://msdn.microsoft.com/en-us/library/ms690689%28v=vs.90%29.aspx http://msdn.microsoft.com/en-us/library/aa347437%28v=vs.90%29.aspx The httpCompression Element – What and How to compress Basically httpCompression configures what types to compress and how to compress them. It specifies the DLL that handles gzip encoding and the types of documents that are to be compressed. Types are set up based on mime-types which looks at returned Content-Type headers in HTTP responses. For example, I added the application/json to mime type to my dynamic compression types above to allow that content to be compressed as well since I have quite a bit of AJAX content that gets sent to the client. The UrlCompression Element – Enables and Disables Compression The urlCompression element is a quick way to turn compression on and off. By default static compression is enabled server wide, and dynamic compression is disabled server wide. This might be a bit confusing because the httpCompression element also has a doDynamicCompression attribute which is set to true by default, but the urlCompression attribute by the same name actually overrides it. The urlCompression element only has three attributes: doStaticCompression, doDynamicCompression and dynamicCompressionBeforeCache. The doCompression attributes are the final determining factor whether compression is enabled, so it’s a good idea to be explcit! The default for doDynamicCompression='false”, but doStaticCompression="true"! Static Compression is enabled by Default, Dynamic Compression is not Because static compression is very efficient in IIS 7 it’s enabled by default server wide and there probably is no reason to ever change that setting. Dynamic compression however, since it’s more resource intensive, is turned off by default. If you want to enable dynamic compression there are a few quirks you have to deal with, namely that enabling it in ApplicationHost.config doesn’t work. Setting: <urlCompression doDynamicCompression="true" /> in applicationhost.config appears to have no effect and I had to move this element into my local web.config to make dynamic compression work. This is actually a smart choice because you’re not likely to want dynamic compression in every application on a server. Rather dynamic compression should be applied selectively where it makes sense. However, nowhere is it documented that the setting in applicationhost.config doesn’t work (or more likely is overridden somewhere and disabled lower in the configuration hierarchy). So: remember to set doDynamicCompression=”true” in web.config!!! How Static Compression works Static compression works against static content loaded from files on disk. Because this content is static and not bound to change frequently – such as .js, .css and static HTML content – it’s fairly easy for IIS to compress and then cache the compressed content. The way this works is that IIS compresses the files into a special folder on the server’s hard disk and then reads the content from this location if already compressed content is requested and the underlying file resource has not changed. The semantics of serving an already compressed file are very efficient – IIS still checks for file changes, but otherwise just serves the already compressed file from the compression folder. The compression folder is located at: %windir%\inetpub\temp\IIS Temporary Compressed Files\ApplicationPool\ If you look into the subfolders you’ll find compressed files: These files are pre-compressed and IIS serves them directly to the client until the underlying files are changed. As I mentioned before – static compression is on by default and there’s very little reason to turn that functionality off as it is efficient and just works out of the box. The one tweak you might want to do is to set the compression level to maximum. Since IIS only compresses content very infrequently it would make sense to apply maximum compression. You can do this with the staticCompressionLevel setting on the scheme element: <scheme name="gzip" dll="%Windir%\system32\inetsrv\gzip.dll" staticCompressionLevel="9" /> Other than that the default settings are probably just fine. Dynamic Compression – not so fast! By default dynamic compression is disabled and that’s actually quite sensible – you should use dynamic compression very carefully and think about what content you want to compress. In most applications it wouldn’t make sense to compress *all* generated content as it would generate a significant amount of overhead. Scott Fortsyth has a great post that details some of the performance numbers and how much impact dynamic compression has. Depending on how busy your server is you can play around with compression and see what impact it has on your server’s performance. There are also a few settings you can tweak to minimize the overhead of dynamic compression. Specifically the httpCompression key has a couple of CPU related keys that can help minimize the impact of Dynamic Compression on a busy server: dynamicCompressionDisableCpuUsage dynamicCompressionEnableCpuUsage By default these are set to 90 and 50 which means that when the CPU hits 90% compression will be disabled until CPU utilization drops back down to 50%. Again this is actually quite sensible as it utilizes CPU power from compression when available and falling off when the threshold has been hit. It’s a good way some of that extra CPU power on your big servers to use when utilization is low. Again these settings are something you likely have to play with. I would probably set the upper limit a little lower than 90% maybe around 70% to make this a feature that kicks in only if there’s lots of power to spare. I’m not really sure how accurate these CPU readings that IIS uses are as Cpu usage on Web Servers can spike drastically even during low loads. Don’t trust settings – do some load testing or monitor your server in a live environment to see what values make sense for your environment. Finally for dynamic compression I tend to add one Mime type for JSON data, since a lot of my applications send large chunks of JSON data over the wire. You can do that with the application/json content type: <add mimeType="application/json" enabled="true" /> What about Deflate Compression? The default compression is GZip. The documentation hints that you can use a different compression scheme and mentions Deflate compression. And sure enough you can change the compression settings to: <scheme name="deflate" dll="%Windir%\system32\inetsrv\gzip.dll" staticCompressionLevel="9" /> to get deflate style compression. The deflate algorithm produces slightly more compact output so I tend to prefer it over GZip but more HTTP clients (other than browsers) support GZip than Deflate so be careful with this option if you build Web APIs. I also had some issues with the above value actually being applied right away. Changing the scheme in applicationhost.config didn’t show up on the site right away. It required me to do a full IISReset to get that change to show up before I saw the change over to deflate compressed content. Content was slightly more compressed with deflate – not sure if it’s worth the slightly less common compression type, but the option at least is available. IIS 7 finally makes GZip Easy In summary IIS 7 makes GZip easy finally, even if the configuration settings are a bit obtuse and the documentation is seriously lacking. But once you know the basic settings I’ve described here and the fact that you can override all of this in your local web.config it’s pretty straight forward to configure GZip support and tweak it exactly to your needs. Static compression is a total no brainer as it adds very little overhead compared to direct static file serving and provides solid compression. Dynamic Compression is a little more tricky as it does add some overhead to servers, so it probably will require some tweaking to get the right balance of CPU load vs. compression ratios. Looking at large sites like Amazon, Yahoo, NewEgg etc. – they all use Related Content Code based ASP.NET GZip Caveats HttpWebRequest and GZip Responses © Rick Strahl, West Wind Technologies, 2005-2011Posted in IIS7 ASP.NET

Read the article
Cannot redeclare class error when generating PHPUnit code coverage report

- by Cobby

Starting a project with Zend Framework 1.10 and Doctrine 2 (Beta1). I am using namespaces in my own library code. When generating code coverage reports I get a Fatal Error about Redeclaring a class. To provide more info, I've commented out the xdebug_disable() call in my phpunit executable so you can see the function trace (disabled local variables output because there was too much output). Here's my Terminal output: $ phpunit PHPUnit 3.4.12 by Sebastian Bergmann. ........ Time: 4 seconds, Memory: 16.50Mb OK (8 tests, 14 assertions) Generating code coverage report, this may take a moment.PHP Fatal error: Cannot redeclare class Cob\Application\Resource\HelperBroker in /Users/Cobby/Sites/project/trunk/code/library/Cob/Application/Resource/HelperBroker.php on line 93 PHP Stack trace: PHP 1. {main}() /usr/local/zend/bin/phpunit:0 PHP 2. PHPUnit_TextUI_Command::main() /usr/local/zend/bin/phpunit:54 PHP 3. PHPUnit_TextUI_Command-run() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:146 PHP 4. PHPUnit_TextUI_TestRunner-doRun() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:213 PHP 5. PHPUnit_Util_Report::render() /usr/local/zend/share/pear/PHPUnit/TextUI/TestRunner.php:478 PHP 6. PHPUnit_Framework_TestResult-getCodeCoverageInformation() /usr/local/zend/share/pear/PHPUnit/Util/Report.php:97 PHP 7. PHPUnit_Util_Filter::getFilteredCodeCoverage() /usr/local/zend/share/pear/PHPUnit/Framework/TestResult.php:623 Fatal error: Cannot redeclare class Cob\Application\Resource\HelperBroker in /Users/Cobby/Sites/project/trunk/code/library/Cob/Application/Resource/HelperBroker.php on line 93 Call Stack: 0.0004 322888 1. {main}() /usr/local/zend/bin/phpunit:0 0.0816 4114628 2. PHPUnit_TextUI_Command::main() /usr/local/zend/bin/phpunit:54 0.0817 4114964 3. PHPUnit_TextUI_Command-run() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:146 0.1151 5435528 4. PHPUnit_TextUI_TestRunner-doRun() /usr/local/zend/share/pear/PHPUnit/TextUI/Command.php:213 4.2931 16690760 5. PHPUnit_Util_Report::render() /usr/local/zend/share/pear/PHPUnit/TextUI/TestRunner.php:478 4.2931 16691120 6. PHPUnit_Framework_TestResult-getCodeCoverageInformation() /usr/local/zend/share/pear/PHPUnit/Util/Report.php:97 4.2931 16691148 7. PHPUnit_Util_Filter::getFilteredCodeCoverage() /usr/local/zend/share/pear/PHPUnit/Framework/TestResult.php:623 (I have no idea why it shows the error twice...?) And here is my phpunit.xml: <phpunit bootstrap="./code/tests/application/bootstrap.php" colors="true">  <testsuite name="My Promotions"> <directory>./</directory> </testsuite> <filter> <whitelist> <directory suffix=".php">../application</directory> <directory suffix=".php">../library/Cob</directory> <exclude>  <file>../library/Cob/Application/Resource/HelperBroker.php</file> <directory suffix=".phtml">../application</directory> <directory suffix=".php">../application/doctrine</directory> <file>../application/Bootstrap.php</file> <directory suffix=".php">../library/Cob/Tools</directory> </exclude> </whitelist> </filter> <logging> <log type="junit" target="../../build/reports/tests/report.xml" /> <log type="coverage-html" target="../../build/reports/coverage" charset="UTF-8" yui="true" highlight="true" lowUpperBound="50" highLowerBound="80" /> </logging> </phpunit> I have added a tag inside the which seams to hide this problem. I do have another application resource but it doesn't seam to have a problem (the other one is a Doctrine 2 resource). I'm not sure why it is specific to this class, my entire library is autoloaded so their isn't any include/require calls anywhere. I guess it should be noted that HelperBroker is the first file in the filesystem stemming out from library/Cob I am on Snow Leopard with the latest/recent versions of all software (Zend Server, Zend Framework, Doctrine 2 Beta1, Phing, PHPUnit, PEAR).

Read the article
Beware Sneaky Reads with Unique Indexes

- by Paul White NZ

A few days ago, Sandra Mueller (twitter | blog) asked a question using twitter’s #sqlhelp hash tag: “Might SQL Server retrieve (out-of-row) LOB data from a table, even if the column isn’t referenced in the query?” Leaving aside trivial cases (like selecting a computed column that does reference the LOB data), one might be tempted to say that no, SQL Server does not read data you haven’t asked for. In general, that’s quite correct; however there are cases where SQL Server might sneakily retrieve a LOB column… Example Table Here’s a T-SQL script to create that table and populate it with 1,000 rows: CREATE TABLE dbo.LOBtest ( pk INTEGER IDENTITY NOT NULL, some_value INTEGER NULL, lob_data VARCHAR(MAX) NULL, another_column CHAR(5) NULL, CONSTRAINT [PK dbo.LOBtest pk] PRIMARY KEY CLUSTERED (pk ASC) ); GO DECLARE @Data VARCHAR(MAX); SET @Data = REPLICATE(CONVERT(VARCHAR(MAX), 'x'), 65540); WITH Numbers (n) AS ( SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 0)) FROM master.sys.columns C1, master.sys.columns C2 ) INSERT LOBtest WITH (TABLOCKX) ( some_value, lob_data ) SELECT TOP (1000) N.n, @Data FROM Numbers N WHERE N.n <= 1000; Test 1: A Simple Update Let’s run a query to subtract one from every value in the some_value column: UPDATE dbo.LOBtest WITH (TABLOCKX) SET some_value = some_value - 1; As you might expect, modifying this integer column in 1,000 rows doesn’t take very long, or use many resources. The STATITICS IO and TIME output shows a total of 9 logical reads, and 25ms elapsed time. The query plan is also very simple: Looking at the Clustered Index Scan, we can see that SQL Server only retrieves the pk and some_value columns during the scan: The pk column is needed by the Clustered Index Update operator to uniquely identify the row that is being changed. The some_value column is used by the Compute Scalar to calculate the new value. (In case you are wondering what the Top operator is for, it is used to enforce SET ROWCOUNT). Test 2: Simple Update with an Index Now let’s create a nonclustered index keyed on the some_value column, with lob_data as an included column: CREATE NONCLUSTERED INDEX [IX dbo.LOBtest some_value (lob_data)] ON dbo.LOBtest (some_value) INCLUDE ( lob_data ) WITH ( FILLFACTOR = 100, MAXDOP = 1, SORT_IN_TEMPDB = ON ); This is not a useful index for our simple update query; imagine that someone else created it for a different purpose. Let’s run our update query again: UPDATE dbo.LOBtest WITH (TABLOCKX) SET some_value = some_value - 1; We find that it now requires 4,014 logical reads and the elapsed query time has increased to around 100ms. The extra logical reads (4 per row) are an expected consequence of maintaining the nonclustered index. The query plan is very similar to before (click to enlarge): The Clustered Index Update operator picks up the extra work of maintaining the nonclustered index. The new Compute Scalar operators detect whether the value in the some_value column has actually been changed by the update. SQL Server may be able to skip maintaining the nonclustered index if the value hasn’t changed (see my previous post on non-updating updates for details). Our simple query does change the value of some_data in every row, so this optimization doesn’t add any value in this specific case. The output list of columns from the Clustered Index Scan hasn’t changed from the one shown previously: SQL Server still just reads the pk and some_data columns. Cool. Overall then, adding the nonclustered index hasn’t had any startling effects, and the LOB column data still isn’t being read from the table. Let’s see what happens if we make the nonclustered index unique. Test 3: Simple Update with a Unique Index Here’s the script to create a new unique index, and drop the old one: CREATE UNIQUE NONCLUSTERED INDEX [UQ dbo.LOBtest some_value (lob_data)] ON dbo.LOBtest (some_value) INCLUDE ( lob_data ) WITH ( FILLFACTOR = 100, MAXDOP = 1, SORT_IN_TEMPDB = ON ); GO DROP INDEX [IX dbo.LOBtest some_value (lob_data)] ON dbo.LOBtest; Remember that SQL Server only enforces uniqueness on index keys (the some_data column). The lob_data column is simply stored at the leaf-level of the non-clustered index. With that in mind, we might expect this change to make very little difference. Let’s see: UPDATE dbo.LOBtest WITH (TABLOCKX) SET some_value = some_value - 1; Whoa! Now look at the elapsed time and logical reads: Scan count 1, logical reads 2016, physical reads 0, read-ahead reads 0, lob logical reads 36015, lob physical reads 0, lob read-ahead reads 15992. CPU time = 172 ms, elapsed time = 16172 ms. Even with all the data and index pages in memory, the query took over 16 seconds to update just 1,000 rows, performing over 52,000 LOB logical reads (nearly 16,000 of those using read-ahead). Why on earth is SQL Server reading LOB data in a query that only updates a single integer column? The Query Plan The query plan for test 3 looks a bit more complex than before: In fact, the bottom level is exactly the same as we saw with the non-unique index. The top level has heaps of new stuff though, which I’ll come to in a moment. You might be expecting to find that the Clustered Index Scan is now reading the lob_data column (for some reason). After all, we need to explain where all the LOB logical reads are coming from. Sadly, when we look at the properties of the Clustered Index Scan, we see exactly the same as before: SQL Server is still only reading the pk and some_value columns – so what’s doing the LOB reads? Updates that Sneakily Read Data We have to go as far as the Clustered Index Update operator before we see LOB data in the output list: [Expr1020] is a bit flag added by an earlier Compute Scalar. It is set true if the some_value column has not been changed (part of the non-updating updates optimization I mentioned earlier). The Clustered Index Update operator adds two new columns: the lob_data column, and some_value_OLD. The some_value_OLD column, as the name suggests, is the pre-update value of the some_value column. At this point, the clustered index has already been updated with the new value, but we haven’t touched the nonclustered index yet. An interesting observation here is that the Clustered Index Update operator can read a column into the data flow as part of its update operation. SQL Server could have read the LOB data as part of the initial Clustered Index Scan, but that would mean carrying the data through all the operations that occur prior to the Clustered Index Update. The server knows it will have to go back to the clustered index row to update it, so it delays reading the LOB data until then. Sneaky! Why the LOB Data Is Needed This is all very interesting (I hope), but why is SQL Server reading the LOB data? For that matter, why does it need to pass the pre-update value of the some_value column out of the Clustered Index Update? The answer relates to the top row of the query plan for test 3. I’ll reproduce it here for convenience: Notice that this is a wide (per-index) update plan. SQL Server used a narrow (per-row) update plan in test 2, where the Clustered Index Update took care of maintaining the nonclustered index too. I’ll talk more about this difference shortly. The Split/Sort/Collapse combination is an optimization, which aims to make per-index update plans more efficient. It does this by breaking each update into a delete/insert pair, reordering the operations, removing any redundant operations, and finally applying the net effect of all the changes to the nonclustered index. Imagine we had a unique index which currently holds three rows with the values 1, 2, and 3. If we run a query that adds 1 to each row value, we would end up with values 2, 3, and 4. The net effect of all the changes is the same as if we simply deleted the value 1, and added a new value 4. By applying net changes, SQL Server can also avoid false unique-key violations. If we tried to immediately update the value 1 to a 2, it would conflict with the existing value 2 (which would soon be updated to 3 of course) and the query would fail. You might argue that SQL Server could avoid the uniqueness violation by starting with the highest value (3) and working down. That’s fine, but it’s not possible to generalize this logic to work with every possible update query. SQL Server has to use a wide update plan if it sees any risk of false uniqueness violations. It’s worth noting that the logic SQL Server uses to detect whether these violations are possible has definite limits. As a result, you will often receive a wide update plan, even when you can see that no violations are possible. Another benefit of this optimization is that it includes a sort on the index key as part of its work. Processing the index changes in index key order promotes sequential I/O against the nonclustered index. A side-effect of all this is that the net changes might include one or more inserts. In order to insert a new row in the index, SQL Server obviously needs all the columns – the key column and the included LOB column. This is the reason SQL Server reads the LOB data as part of the Clustered Index Update. In addition, the some_value_OLD column is required by the Split operator (it turns updates into delete/insert pairs). In order to generate the correct index key delete operation, it needs the old key value. The irony is that in this case the Split/Sort/Collapse optimization is anything but. Reading all that LOB data is extremely expensive, so it is sad that the current version of SQL Server has no way to avoid it. Finally, for completeness, I should mention that the Filter operator is there to filter out the non-updating updates. Beating the Set-Based Update with a Cursor One situation where SQL Server can see that false unique-key violations aren’t possible is where it can guarantee that only one row is being updated. Armed with this knowledge, we can write a cursor (or the WHILE-loop equivalent) that updates one row at a time, and so avoids reading the LOB data: SET NOCOUNT ON; SET STATISTICS XML, IO, TIME OFF; DECLARE @PK INTEGER, @StartTime DATETIME; SET @StartTime = GETUTCDATE(); DECLARE curUpdate CURSOR LOCAL FORWARD_ONLY KEYSET SCROLL_LOCKS FOR SELECT L.pk FROM LOBtest L ORDER BY L.pk ASC; OPEN curUpdate; WHILE (1 = 1) BEGIN FETCH NEXT FROM curUpdate INTO @PK; IF @@FETCH_STATUS = -1 BREAK; IF @@FETCH_STATUS = -2 CONTINUE; UPDATE dbo.LOBtest SET some_value = some_value - 1 WHERE CURRENT OF curUpdate; END; CLOSE curUpdate; DEALLOCATE curUpdate; SELECT DATEDIFF(MILLISECOND, @StartTime, GETUTCDATE()); That completes the update in 1280 milliseconds (remember test 3 took over 16 seconds!) I used the WHERE CURRENT OF syntax there and a KEYSET cursor, just for the fun of it. One could just as well use a WHERE clause that specified the primary key value instead. Clustered Indexes A clustered index is the ultimate index with included columns: all non-key columns are included columns in a clustered index. Let’s re-create the test table and data with an updatable primary key, and without any non-clustered indexes: IF OBJECT_ID(N'dbo.LOBtest', N'U') IS NOT NULL DROP TABLE dbo.LOBtest; GO CREATE TABLE dbo.LOBtest ( pk INTEGER NOT NULL, some_value INTEGER NULL, lob_data VARCHAR(MAX) NULL, another_column CHAR(5) NULL, CONSTRAINT [PK dbo.LOBtest pk] PRIMARY KEY CLUSTERED (pk ASC) ); GO DECLARE @Data VARCHAR(MAX); SET @Data = REPLICATE(CONVERT(VARCHAR(MAX), 'x'), 65540); WITH Numbers (n) AS ( SELECT ROW_NUMBER() OVER (ORDER BY (SELECT 0)) FROM master.sys.columns C1, master.sys.columns C2 ) INSERT LOBtest WITH (TABLOCKX) ( pk, some_value, lob_data ) SELECT TOP (1000) N.n, N.n, @Data FROM Numbers N WHERE N.n <= 1000; Now here’s a query to modify the cluster keys: UPDATE dbo.LOBtest SET pk = pk + 1; The query plan is: As you can see, the Split/Sort/Collapse optimization is present, and we also gain an Eager Table Spool, for Halloween protection. In addition, SQL Server now has no choice but to read the LOB data in the Clustered Index Scan: The performance is not great, as you might expect (even though there is no non-clustered index to maintain): Table 'LOBtest'. Scan count 1, logical reads 2011, physical reads 0, read-ahead reads 0, lob logical reads 36015, lob physical reads 0, lob read-ahead reads 15992. Table 'Worktable'. Scan count 1, logical reads 2040, physical reads 0, read-ahead reads 0, lob logical reads 34000, lob physical reads 0, lob read-ahead reads 8000. SQL Server Execution Times: CPU time = 483 ms, elapsed time = 17884 ms. Notice how the LOB data is read twice: once from the Clustered Index Scan, and again from the work table in tempdb used by the Eager Spool. If you try the same test with a non-unique clustered index (rather than a primary key), you’ll get a much more efficient plan that just passes the cluster key (including uniqueifier) around (no LOB data or other non-key columns): A unique non-clustered index (on a heap) works well too: Both those queries complete in a few tens of milliseconds, with no LOB reads, and just a few thousand logical reads. (In fact the heap is rather more efficient). There are lots more fun combinations to try that I don’t have space for here. Final Thoughts The behaviour shown in this post is not limited to LOB data by any means. If the conditions are met, any unique index that has included columns can produce similar behaviour – something to bear in mind when adding large INCLUDE columns to achieve covering queries, perhaps. Paul White Email: [email protected] Twitter: @PaulWhiteNZ

Read the article
Batch break up after call other batch file

- by Sven Arno Jopen

i have the problem, that my batch process breaking up each time after call a other batch file. The batch files are used to run a make process out from IBM Rhapsody. There convert the call from Rhapsody to the Visual Studio tools. So nmake will be called from the batch after make different settings. The scripts aren’t written completely from me, I only adapt theme to run under both windows architecture versions, x86 and x64. The first script (vs2005_make.bat) will be called from Rhapsody and run to the “call” statement. The second script (Vcvars_VisualStudio2005.bat) runs to the end. But the first script isn’t resume working, at this point the process break up without a error message. I'm not very familiar with batch files, this is the first time I make more than simple console commands in a batch file. So I hope I have given all information’s which needed, otherwise ask me. Here the start script (vs2005_make.bat): :: parameter 1 - Makefile which should be used :: parameter 2 - The make target mark @echo off IF "%2"=="" set target=all IF "%2"=="all" set target=all IF "%2"=="build" set target=all IF "%2"=="rebuild" set target=clean all IF "%2"=="clean" set target=clean set RegQry="HKLM\Hardware\Description\System\CentralProcessor\0" REG.exe Query %RegQry% > checkOS.txt Find /i "x86" < CheckOS.txt > StringCheck.txt IF %ERRORLEVEL%==0 ( set arch=x86 ) ELSE ( set arch=x64 ) call "%ProgramFiles%\IBM\Rhapsody752\Share\etc\Vcvars_VisualStudio2005.bat" %arch% IF %ERRORLEVEL%==0 ( set makeflags= nmake /nologo /S /F %1 %target% ) del checkOS.txt del StringCheck.txt exit and here the called script (Vcvars_VisualStudio2005.bat): :: param 1 - Processor architecture @echo off ECHO param 1 = %1 IF %1==x86 ( SET ProgrammPath=%ProgramFiles% ) ELSE IF %1==x64 ( SET ProgrammPath=%ProgramFiles(x86)% ) ELSE ( ECHO Unknowen architectur EXIT /B 1 ) SET VSINSTALLDIR="%ProgrammPath%\Microsoft Visual Studio 8\Common7\IDE" SET VCINSTALLDIR="%ProgrammPath%\Microsoft Visual Studio 8" SET FrameworkDir=C:\WINDOWS\Microsoft.NET\Framework SET FrameworkVersion=v2.0.50727 SET FrameworkSDKDir="%ProgrammPath%\Microsoft Visual Studio 8\SDK\v2.0" rem Root of Visual Studio common files. IF %VSINSTALLDIR%=="" GOTO Usage IF %VCINSTALLDIR%=="" SET VCINSTALLDIR=%VSINSTALLDIR% rem rem Root of Visual Studio ide installed files. rem SET DevEnvDir=%VSINSTALLDIR% rem rem Root of Visual C++ installed files. rem SET MSVCDir=%VCINSTALLDIR%\VC SET PATH=%DevEnvDir%;%MSVCDir%\BIN;%VCINSTALLDIR%\Common7\Tools;%VCINSTALLDIR%Common7 \Tools\bin\prerelease;%VCINSTALLDIR%\Common7\Tools\bin;%FrameworkSDKDir%\bin;%FrameworkDir%\%FrameworkVersion%;%PATH%; SET INCLUDE=%MSVCDir%\ATLMFC\INCLUDE;%MSVCDir%\INCLUDE;%MSVCDir%\PlatformSDK\include\gl;%MSVCDir%\PlatformSDK\include;%FrameworkSDKDir%\include;%INCLUDE% SET LIB=%MSVCDir%\ATLMFC\LIB;%MSVCDir%\LIB;%MSVCDir%\PlatformSDK\lib;%FrameworkSDKDir%\lib;%LIB% GOTO end :Usage ECHO. VSINSTALLDIR variable is not set. ECHO. ECHO SYNTAX: %0 GOTO end :end Here the console output, what I not understand here and find very suspicious is that after the “IF %ERRORLEVEL%” Statement in the first script all will be put out regardless the echo is set to off… Executing: "C:\Programme\IBM\Rhapsody752\Share\etc\vs2005_make.bat" Simulation.mak build IF %ERRORLEVEL%==0 ( Mehr? set arch=x86 Mehr? ) ELSE ( Mehr? set arch=x64 Mehr? ) call "%ProgramFiles%\IBM\Rhapsody752\Share\etc\Vcvars_VisualStudio2005.bat" %arch% :: param 1 - Processor architecture @echo off ECHO param 1 = %1 param 1 = x86 IF %1==x86 ( Mehr? SET ProgrammPath=%ProgramFiles% Mehr? ) ELSE IF %1==x64 ( Mehr? SET ProgrammPath=%ProgramFiles(x86)% Mehr? ) ELSE ( Mehr? ECHO Unknowen architectur Mehr? EXIT /B 1 Mehr? ) SET VSINSTALLDIR="%ProgrammPath%\Microsoft Visual Studio 8\Common7\IDE" SET VCINSTALLDIR="%ProgrammPath%\Microsoft Visual Studio 8" SET FrameworkDir=C:\WINDOWS\Microsoft.NET\Framework SET FrameworkVersion=v2.0.50727 SET FrameworkSDKDir="%ProgrammPath%\Microsoft Visual Studio 8\SDK\v2.0" rem Root of Visual Studio common files. IF %VSINSTALLDIR%=="" GOTO Usage IF %VCINSTALLDIR%=="" SET VCINSTALLDIR=%VSINSTALLDIR% rem rem Root of Visual Studio ide installed files. rem SET DevEnvDir=%VSINSTALLDIR% rem rem Root of Visual C++ installed files. rem SET MSVCDir=%VCINSTALLDIR%\VC SET PATH=%DevEnvDir%;%MSVCDir%\BIN;%VCINSTALLDIR%\Common7\Tools;%VCINSTALLDIR%\Common7\Tools\bin\prerelease;%VCINSTALLDIR%\Common7\Tools\bin;%FrameworkSDKDir%\bin;%FrameworkDir%\%FrameworkVersion%;%PATH%; SET INCLUDE=%MSVCDir%\ATLMFC\INCLUDE;%MSVCDir%\INCLUDE;%MSVCDir%\PlatformSDK\include\gl;%MSVCDir%\PlatformSDK\include;%FrameworkSDKDir%\include;%INCLUDE% SET LIB=%MSVCDir%\ATLMFC\LIB;%MSVCDir%\LIB;%MSVCDir%\PlatformSDK\lib;%FrameworkSDKDir%\lib;%LIB% GOTO end Build Done I hope someone have an idea, i work now since two days and don't find the error... thanking you in anticipation. Note: The word “Mehr?” in the text output is german and means “more”. I don't know were it comes from and it is possible that it is a bad translation from the English output to german.

Read the article
Include weather information in ASP.Net site from weather.com services

- by sreejukg

In this article, I am going to demonstrate how you can use the XMLOAP services (referred as XOAP from here onwards) provided by weather.com to display the weather information in your website. The XOAP services are available to be used for free of charge, provided you are comply with requirements from weather.com. I am writing this article from a technical point of view. If you are planning to use weather.com XOAP services in your application, please refer to the terms and conditions from weather.com website. In order to start using the XOAP services, you need to sign up the XOAP datafeed. The signing process is simple, you simply browse the url http://www.weather.com/services/xmloap.html. The URL looks similar to the following. Click on the sign up button, you will reach the registration page. Here you need to specify the site name you need to use this feed for. The form looks similar to the following. Once you fill all the mandatory information, click on save and continue button. That’s it. The registration is over. You will receive an email that contains your partner id, license key and SDK. The SDK available in a zipped format, contains the terms of use and documentation about the services available. Other than this the SDK includes the logos and icons required to display the weather information. As per the SDK, currently there are 2 types of information available through XOAP. These services are Current Conditions for over 30,000 U.S. and over 7,900 international Location IDs Updated at least Hourly Five-Day Forecast (today + 4 additional forecast days in consecutive order beginning with tomorrow) for over 30,000 U.S. and over 7,900 international Location IDs Updated at least Three Times Daily The SDK provides detailed information about the fields included in response of each service. Additionally there is a refresh rate that you need to comply with. As per the SDK, the refresh rate means the following “Refresh Rate” shall mean the maximum frequency with which you may call the XML Feed for a given LocID requesting a data set for that LocID. During the time period in between refresh periods the data must be cached by you either in the memory on your servers or in Your Desktop Application. About the Services Weather.com will provide you with access to the XML Feed over the Internet through the hostname xoap.weather.com. The weather data from the XML feed must be requested for a specific location. So you need a location ID (LOC ID). The XML feed work with 2 types of location IDs. First one is with City Identifiers and second one is using 5 Digit US postal codes. If you do not know your location ID, don’t worry, there is a location id search service available for you to retrieve the location id from city name. Since I am a resident in the Kingdom of Bahrain, I am going to retrieve the weather information for Manama(the capital of Bahrain) . In order to get the location ID for Manama, type the following URL in your address bar. http://xoap.weather.com/search/search?where=manama I got the following XML output. <?xml version="1.0" encoding="UTF-8"?> <!-- This document is intended only for use by authorized licensees of The –> <!-- Weather Channel. Unauthorized use is prohibited. Copyright 1995-2011, –> <!-- The Weather Channel Interactive, Inc. All Rights Reserved. –> <search ver="3.0"> <loc id="BAXX0001" type="1">Al Manama, Bahrain</loc> </search> You can try this with any city name, if the city is available, it will return the location id, and otherwise, it will return nothing. In order to get the weather information, from XOAP, you need to pass certain parameters to the XOAP service. A brief about the parameters are as follows. Please refer SDK for more details. Parameter name Possible Value cc Optional, if you include this, the current condition will be returned. Value can be anything, as it will be ignored e.g. cc=* dayf If you want the forecast for 5 days, specify dayf=5 This is optional iink Value should be XOAP par Your partner id. You can find this in your registration email from weather.com prod Value should be XOAP key The license key assigned to you. This will be available in the registration email unit s or m (standard or matric or you can think of Celsius/Fahrenheit) this is optional field, if not specified the unit will be standard(s) The URL host for the XOAP service is http://xoap.weather.com. So for my purpose, I need the following request to be made to access the XOAP services. http://xoap.weather.com/weather/local/BAXX0001?cc=*&link=xoap&prod=xoap&par=*********&key=************** (The ***** to be replaced with the corresponding alternatives) The response XML have a root element “weather”. Under the root element, it has the following sections <head> - the meta data information about the weather results returned. <loc> - the location data block that provides, the information about the location for which the wheather data is retrieved. <lnks> - the 4 promotional links you need to place along with the weather display. Additional to these 4 links, there should be another link with weather channel logo to the home page of weather.com. <cc> - the current condition data. This element will be there only if you specify the cc element in the request. <dayf> - the forcast data as you specified. This element will be there only if you specify the dayf in the request. In this walkthrough, I am going to capture the weather information for Manama (Location ID: BAXX0001). You need 2 applications to display weather information in your website. A Console application that retrieves data from the XMLOAP and store in the SQL Server database (or any data store as you prefer).This application will be scheduled to execute in every 25 minutes using windows task scheduler, so that we can comply with the refresh rate. A web application that display data from the SQL Server database Retrieve the Weather from XOAP I have created a console application named, Weather Service. I created a SQL server database, with the following columns. I named the table as tblweather. You are free to choose any name. Column name Description lastUpdated Datetime, this is the last time when the weather data is updated. This is the time of the service running TemparatureDateTime The date and time returned by XML feed Temparature The temperature returned by the XML feed. TemparatureUnit The unit of the temperature returned by the XML feed iconId The id of the icon to be used. Currently 48 icons from 0 to 47 are available. WeatherDescription The Weather Description Phrase returned by the feed. Link1url The url to the first promo link Link1Text The text for the first promo link Link2url The url to the second promo link Link2Text The text for the second promo link Link3url The url to the third promo link Link3Text The text for the third promo link Link4url The url to the fourth promo link Link4Text The text for the fourth promo link Every time when the service runs, the application will update the database columns from the XOAP data feed. When the application starts, It is going to get the data as XML from the url. This demonstration uses LINQ to extract the necessary data from the fetched XML. The following are the code segment for extracting data from the weather XML using LINQ. // first, create an instance of the XDocument class with the XOAP URL. replace **** with the corresponding values. XDocument weather = XDocument.Load("http://xoap.weather.com/weather/local/BAXX0001?cc=*&link=xoap&prod=xoap&par=***********&key=c*********"); // construct a query using LINQ var feedResult = from item in weather.Descendants() select new { unit = item.Element("head").Element("ut").Value, temp = item.Element("cc").Element("tmp").Value, tempDate = item.Element("cc").Element("lsup").Value, iconId = item.Element("cc").Element("icon").Value, description = item.Element("cc").Element("t").Value, links = from link in item.Elements("lnks").Elements("link") select new { url = link.Element("l").Value, text = link.Element("t").Value } }; // Load the root node to a variable, you may use foreach construct instead. var item1 = feedResult.First(); *If you want to learn more about LINQ and XML, read this nice blog from Scott GU. http://weblogs.asp.net/scottgu/archive/2007/08/07/using-linq-to-xml-and-how-to-build-a-custom-rss-feed-reader-with-it.aspx Now you have all the required values in item1. For e.g. if you want to get the temperature, use item1.temp; Now I just need to execute an SQL query against the database. See the connection part. using (SqlConnection conn = new SqlConnection(@"Data Source=sreeju\sqlexpress;Initial Catalog=Sample;Integrated Security=True")) { string strSql = @"update tblweather set lastupdated=getdate(), temparatureDateTime = @temparatureDateTime, temparature=@temparature, temparatureUnit=@temparatureUnit, iconId = @iconId, description=@description, link1url=@link1url, link1text=@link1text, link2url=@link2url, link2text=@link2text,link3url=@link3url, link3text=@link3text,link4url=@link4url, link4text=@link4text"; SqlCommand comm = new SqlCommand(strSql, conn); comm.Parameters.AddWithValue("temparatureDateTime", item1.tempDate); comm.Parameters.AddWithValue("temparature", item1.temp); comm.Parameters.AddWithValue("temparatureUnit", item1.unit); comm.Parameters.AddWithValue("description", item1.description); comm.Parameters.AddWithValue("iconId", item1.iconId); var lstLinks = item1.links; comm.Parameters.AddWithValue("link1url", lstLinks.ElementAt(0).url); comm.Parameters.AddWithValue("link1text", lstLinks.ElementAt(0).text); comm.Parameters.AddWithValue("link2url", lstLinks.ElementAt(1).url); comm.Parameters.AddWithValue("link2text", lstLinks.ElementAt(1).text); comm.Parameters.AddWithValue("link3url", lstLinks.ElementAt(2).url); comm.Parameters.AddWithValue("link3text", lstLinks.ElementAt(2).text); comm.Parameters.AddWithValue("link4url", lstLinks.ElementAt(3).url); comm.Parameters.AddWithValue("link4text", lstLinks.ElementAt(3).text); conn.Open(); comm.ExecuteNonQuery(); conn.Close(); Console.WriteLine("database updated"); } Now click ctrl + f5 to run the service. I got the following output Check your database and make sure, the data is updated with the latest information from the service. (Make sure you inserted one row in the database by entering some values before executing the service. Otherwise you need to modify your application code to count the rows and conditionally perform insert/update query) Display the Weather information in ASP.Net page Now you got all the data in the database. You just need to create a web application and display the data from the database. I created a new ASP.Net web application with a default.aspx page. In order to comply with the terms of weather.com, You need to use Weather.com logo along with the weather display. You can find the necessary logos to use under the folder “logos” in the SDK. Additionally copy any of the icon set from the folder “icons” to your web application. I used the 93x93 icon set. You are free to use any other sizes available. The design view of the page in VS2010 looks similar to the following. The page contains a heading, an image control (for displaying the weather icon), 2 label controls (for displaying temperature and weather description), 4 hyperlinks (for displaying the 4 promo links returned by the XOAP service) and weather.com logo with hyperlink to the weather.com home page. I am going to write code that will update the values of these controls from the values stored in the database by the service application as mentioned in the previous step. Go to the code behind file for the webpage, enter the following code under Page_Load event handler. using (SqlConnection conn = new SqlConnection(@"Data Source=sreeju\sqlexpress;Initial Catalog=Sample;Integrated Security=True")) { SqlCommand comm = new SqlCommand("select top 1 * from tblweather", conn); conn.Open(); SqlDataReader reader = comm.ExecuteReader(); if (reader.Read()) { lblTemparature.Text = reader["temparature"].ToString() + "°" + reader["temparatureUnit"].ToString(); lblWeatherDescription.Text = reader["description"].ToString(); imgWeather.ImageUrl = "icons/" + reader["iconId"].ToString() + ".png"; lnk1.Text = reader["link1text"].ToString(); lnk1.NavigateUrl = reader["link1url"].ToString(); lnk2.Text = reader["link2text"].ToString(); lnk2.NavigateUrl = reader["link2url"].ToString(); lnk3.Text = reader["link3text"].ToString(); lnk3.NavigateUrl = reader["link3url"].ToString(); lnk4.Text = reader["link4text"].ToString(); lnk4.NavigateUrl = reader["link4url"].ToString(); } conn.Close(); } Press ctrl + f5 to run the page. You will see the following output. That’s it. You need to configure the console application to run every 25 minutes so that the database is updated. Also you can fetch the forecast information and store those in the database, and then retrieve it later in your web page. Since the data resides in your database, you have the full control over your display. You need to make sure your website comply with weather.com license requirements. If you want to get the source code of this walkthrough through the application, post your email address below. Hope you enjoy the reading.

Read the article
Can't get JAX-WS binding customization to work

- by Florian

Hi! I'm trying to resolve a name clash in a wsdl2java mapping with CXF 2.2.6 The relevant wsdl snippets are: <types>... <xs:schema... <xs:element name="GetBPK"> <xs:complexType> <xs:sequence> <xs:element name="PersonInfo" type="szr:PersonInfoType" /> <xs:element name="BereichsKennung" type="xs:string" /> <xs:element name="VKZ" type="xs:string" /> <xs:element name="Target" type="szr:FremdBPKRequestType" minOccurs="0" maxOccurs="unbounded" /> <xs:element name="ListMultiplePersons" type="xs:boolean" minOccurs="0" /> </xs:sequence> </xs:complexType> </xs:element> <xs:element name="GetBPKResponse"> <xs:complexType> <xs:sequence> <xs:element name="GetBPKReturn" type="xs:string" minOccurs="0" /> <xs:element name="FremdBPK" type="szr:FremdBPKType" minOccurs="0" maxOccurs="unbounded" /> <xs:element name="PersonInfo" type="szr:PersonInfoType" minOccurs="0" maxOccurs="5" /> </xs:sequence> </xs:complexType> </xs:element> </xs:schema> </types> <message name="GetBPKRequest"> <part name="parameters" element="szr:GetBPK" /> </message> <message name="GetBPKResponse"> <part name="parameters" element="szr:GetBPKResponse" /> </message> <binding... <operation name="GetBPK"> <wsdlsoap:operation soapAction="" /> <input name="GetBPKRequest"> <wsdlsoap:header message="szr:Header" part="SecurityHeader" use="literal" /> <wsdlsoap:body use="literal" /> </input> <output name="GetBPKResponse"> <wsdlsoap:body use="literal" /> </output> <fault name="SZRException"> <wsdlsoap:fault use="literal" name="SZRException" /> </fault> </operation> As you can see, the GetBPK operation takes a GetBPK as input and returns a GetBPKResponse as an output. Each element of both the GetBPK, as well as the GetBPKResponse type would be mapped to a method parameter in Java. Unfortunately both GetBPK, as well as the GetBPKResponse have an element with the name "PersonInfo", which results in a name clash. I'm trying to resolve that using a binding customization: <jaxws:bindings wsdlLocation="SZ2-aktuell.wsdl" xmlns:jaxws="http://java.sun.com/xml/ns/jaxws" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:jxb="http://java.sun.com/xml/ns/jaxb" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:szr="urn:SZRServices"> <jaxws:bindings node="wsdl:definitions/wsdl:portType[@name='SZR']/wsdl:operation[@name='GetBPK']">  <jaxws:parameter part="wsdl:definitions/wsdl:message[@name='GetBPKResponse']/wsdl:part[@name='parameters']" childElementName="szr:PersonInfoType" name="PersonInfoParam" /> </jaxws:bindings> </jaxws:bindings> and call wsdl2java with the -b parameter. Unforunately, I still get the message: WSDLToJava Error: Parameter: personInfo already exists for method getBPK but of type at.enno.egovds.szr.PersonInfoType instead of java.util.List<at.enno.egovds.szr.PersonInfoType>. Use a JAXWS/JAXB binding customization to rename the parameter. I have tried several variants of the binding customization, and searched Google for hours, but unfortunately I cannot find a solution to my problem. I suspenct that the childElementName attribute is wrong, but I can't find an example of what would have to be set to make it work. Thanks in advance!

Read the article
Issues with signal handling [closed]

- by user34790

I am trying to actually study the signal handling behavior in multiprocess system. I have a system where there are three signal generating processes generating signals of type SIGUSR1 and SIGUSR1. I have two handler processes that handle a particular type of signal. I have another monitoring process that also receives the signals and then does its work. I have a certain issue. Whenever my signal handling processes generate a signal of a particular type, it is sent to the process group so it is received by the signal handling processes as well as the monitoring processes. Whenever the signal handlers of monitoring and signal handling processes are called, I have printed to indicate the signal handling. I was expecting a uniform series of calls for the signal handlers of the monitoring and handling processes. However, looking at the output I could see like at the beginning the monitoring and signal handling processes's signal handlers are called uniformly. However, after I could see like signal handler processes handlers being called in a burst followed by the signal handler of monitoring process being called in a burst. Here is my code and output #include <iostream> #include <sys/types.h> #include <sys/wait.h> #include <sys/time.h> #include <signal.h> #include <cstdio> #include <stdlib.h> #include <sys/ipc.h> #include <sys/shm.h> #define NUM_SENDER_PROCESSES 3 #define NUM_HANDLER_PROCESSES 4 #define NUM_SIGNAL_REPORT 10 #define MAX_SIGNAL_COUNT 100000 using namespace std; volatile int *usrsig1_handler_count; volatile int *usrsig2_handler_count; volatile int *usrsig1_sender_count; volatile int *usrsig2_sender_count; volatile int *lock_1; volatile int *lock_2; volatile int *lock_3; volatile int *lock_4; volatile int *lock_5; volatile int *lock_6; //Used only by the monitoring process volatile int monitor_count; volatile int usrsig1_monitor_count; volatile int usrsig2_monitor_count; double time_1[NUM_SIGNAL_REPORT]; double time_2[NUM_SIGNAL_REPORT]; //Used only by the main process int total_signal_count; //For shared memory int shmid; const int shareSize = sizeof(int) * (10); double timestamp() { struct timeval tp; gettimeofday(&tp, NULL); return (double)tp.tv_sec + tp.tv_usec / 1000000.; } pid_t senders[NUM_SENDER_PROCESSES]; pid_t handlers[NUM_HANDLER_PROCESSES]; pid_t reporter; void signal_catcher_1(int); void signal_catcher_2(int); void signal_catcher_int(int); void signal_catcher_monitor(int); void signal_catcher_main(int); void terminate_processes() { //Kill the child processes int status; cout << "Time up terminating the child processes" << endl; for(int i=0; i<NUM_SENDER_PROCESSES; i++) { kill(senders[i],SIGKILL); } for(int i=0; i<NUM_HANDLER_PROCESSES; i++) { kill(handlers[i],SIGKILL); } kill(reporter,SIGKILL); //Wait for the child processes to finish for(int i=0; i<NUM_SENDER_PROCESSES; i++) { waitpid(senders[i], &status, 0); } for(int i=0; i<NUM_HANDLER_PROCESSES; i++) { waitpid(handlers[i], &status, 0); } waitpid(reporter, &status, 0); } int main(int argc, char *argv[]) { if(argc != 2) { cout << "Required parameters missing. " << endl; cout << "Option 1 = 1 which means run for 30 seconds" << endl; cout << "Option 2 = 2 which means run until 100000 signals" << endl; exit(0); } int option = atoi(argv[1]); pid_t pid; if(option == 2) { if(signal(SIGUSR1, signal_catcher_main) == SIG_ERR) { perror("1"); exit(1); } if(signal(SIGUSR2, signal_catcher_main) == SIG_ERR) { perror("2"); exit(1); } } else { if(signal(SIGUSR1, SIG_IGN) == SIG_ERR) { perror("1"); exit(1); } if(signal(SIGUSR2, SIG_IGN) == SIG_ERR) { perror("2"); exit(1); } } if(signal(SIGINT, signal_catcher_int) == SIG_ERR) { perror("3"); exit(1); } /////////////////////////////////////////////////////////////////////////////////////// ////////////////////// Initializing the shared memory ///////////////////////////////// /////////////////////////////////////////////////////////////////////////////////////// cout << "Initializing the shared memory" << endl; if ((shmid=shmget(IPC_PRIVATE,shareSize,IPC_CREAT|0660))< 0) { perror("shmget fail"); exit(1); } usrsig1_handler_count = (int *) shmat(shmid, NULL, 0); usrsig2_handler_count = usrsig1_handler_count + 1; usrsig1_sender_count = usrsig2_handler_count + 1; usrsig2_sender_count = usrsig1_sender_count + 1; lock_1 = usrsig2_sender_count + 1; lock_2 = lock_1 + 1; lock_3 = lock_2 + 1; lock_4 = lock_3 + 1; lock_5 = lock_4 + 1; lock_6 = lock_5 + 1; //Initialize them to be zero *usrsig1_handler_count = 0; *usrsig2_handler_count = 0; *usrsig1_sender_count = 0; *usrsig2_sender_count = 0; *lock_1 = 0; *lock_2 = 0; *lock_3 = 0; *lock_4 = 0; *lock_5 = 0; *lock_6 = 0; cout << "End of initializing the shared memory" << endl; ///////////////////////////////////////////////////////////////////////////////////////////// /////////////////// End of initializing the shared memory /////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////////////////// /////////////////////////////Registering the signal handlers/////////////////////////////// /////////////////////////////////////////////////////////////////////////////////////////// cout << "Registering the signal handlers" << endl; for(int i=0; i<NUM_HANDLER_PROCESSES; i++) { if((pid = fork()) == 0) { if(i%2 == 0) { struct sigaction action; action.sa_handler = signal_catcher_1; sigset_t block_mask; action.sa_flags = 0; sigaction(SIGUSR1,&action,NULL); if(signal(SIGUSR2, SIG_IGN) == SIG_ERR) { perror("2"); exit(1); } } else { if(signal(SIGUSR1 ,SIG_IGN) == SIG_ERR) { perror("1"); exit(1); } struct sigaction action; action.sa_handler = signal_catcher_2; action.sa_flags = 0; sigaction(SIGUSR2,&action,NULL); } if(signal(SIGINT, SIG_DFL) == SIG_ERR) { perror("2"); exit(1); } while(true) { pause(); } exit(0); } else { //cout << "Registerd the handler " << pid << endl; handlers[i] = pid; } } cout << "End of registering the signal handlers" << endl; ///////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////////End of registering the signal handlers ////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////// ///////////////////////////Registering the monitoring process ////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////// cout << "Registering the monitoring process" << endl; if((pid = fork()) == 0) { struct sigaction action; action.sa_handler = signal_catcher_monitor; sigemptyset(&action.sa_mask); sigset_t block_mask; sigemptyset(&block_mask); sigaddset(&block_mask,SIGUSR1); sigaddset(&block_mask,SIGUSR2); action.sa_flags = 0; action.sa_mask = block_mask; sigaction(SIGUSR1,&action,NULL); sigaction(SIGUSR2,&action,NULL); if(signal(SIGINT, SIG_DFL) == SIG_ERR) { perror("2"); exit(1); } while(true) { pause(); } exit(0); } else { cout << "Monitor's pid is " << pid << endl; reporter = pid; } cout << "End of registering the monitoring process" << endl; ///////////////////////////////////////////////////////////////////////////////////////////////////// ////////////////////////End of registering the monitoring process//////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////// //Sleep to make sure that the monitor and handler processes are well initialized and ready to handle signals sleep(5); ////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////Registering the signal generators/////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////// cout << "Registering the signal generators" << endl; for(int i=0; i<NUM_SENDER_PROCESSES; i++) { if((pid = fork()) == 0) { if(signal(SIGUSR1, SIG_IGN) == SIG_ERR) { perror("1"); exit(1); } if(signal(SIGUSR2, SIG_IGN) == SIG_ERR) { perror("2"); exit(1); } if(signal(SIGINT, SIG_DFL) == SIG_ERR) { perror("2"); exit(1); } srand(i); while(true) { int signal_id = rand()%2 + 1; if(signal_id == 1) { killpg(getpgid(getpid()), SIGUSR1); while(__sync_lock_test_and_set(lock_4,1) != 0) { } (*usrsig1_sender_count)++; *lock_4 = 0; } else { killpg(getpgid(getpid()), SIGUSR2); while(__sync_lock_test_and_set(lock_5,1) != 0) { } (*usrsig2_sender_count)++; *lock_5=0; } int r = rand()%10 + 1; double s = (double)r/100; sleep(s); } exit(0); } else { //cout << "Registered the sender " << pid << endl; senders[i] = pid; } } //cout << "End of registering the signal generators" << endl; ///////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////End of registering the signal generators/////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////////////////////////// //Either sleep for 30 seconds and terminate the program or if the number of signals generated reaches 10000, terminate the program if(option = 1) { sleep(90); terminate_processes(); } else { while(true) { if(total_signal_count >= MAX_SIGNAL_COUNT) { terminate_processes(); } else { sleep(0.001); } } } } void signal_catcher_1(int the_sig) { while(__sync_lock_test_and_set(lock_1,1) != 0) { } (*usrsig1_handler_count) = (*usrsig1_handler_count) + 1; cout << "Signal Handler 1 " << *usrsig1_handler_count << endl; __sync_lock_release(lock_1); } void signal_catcher_2(int the_sig) { while(__sync_lock_test_and_set(lock_2,1) != 0) { } (*usrsig2_handler_count) = (*usrsig2_handler_count) + 1; __sync_lock_release(lock_2); } void signal_catcher_main(int the_sig) { while(__sync_lock_test_and_set(lock_6,1) != 0) { } total_signal_count++; *lock_6 = 0; } void signal_catcher_int(int the_sig) { for(int i=0; i<NUM_SENDER_PROCESSES; i++) { kill(senders[i],SIGKILL); } for(int i=0; i<NUM_HANDLER_PROCESSES; i++) { kill(handlers[i],SIGKILL); } kill(reporter,SIGKILL); exit(3); } void signal_catcher_monitor(int the_sig) { cout << "Monitoring process " << *usrsig1_handler_count << endl; } Here is the initial segment of output Monitoring process 0 Monitoring process 0 Monitoring process 0 Monitoring process 0 Signal Handler 1 1 Monitoring process 2 Signal Handler 1 2 Signal Handler 1 3 Signal Handler 1 4 Monitoring process 4 Monitoring process Signal Handler 1 6 Signal Handler 1 7 Monitoring process 7 Monitoring process 8 Monitoring process 8 Signal Handler 1 9 Monitoring process 9 Monitoring process 9 Monitoring process 10 Signal Handler 1 11 Monitoring process 11 Monitoring process 12 Signal Handler 1 13 Signal Handler 1 14 Signal Handler 1 15 Signal Handler 1 16 Signal Handler 1 17 Signal Handler 1 18 Monitoring process 19 Signal Handler 1 20 Monitoring process 20 Signal Handler 1 21 Monitoring process 21 Monitoring process 21 Monitoring process 22 Monitoring process 22 Monitoring process 23 Signal Handler 1 24 Signal Handler 1 25 Monitoring process 25 Signal Handler 1 27 Signal Handler 1 28 Signal Handler 1 29 Here is the segment when the signal handler processes signal handlers are called in a burst Signal Handler 1 456 Signal Handler 1 457 Signal Handler 1 458 Signal Handler 1 459 Signal Handler 1 460 Signal Handler 1 461 Signal Handler 1 462 Signal Handler 1 463 Signal Handler 1 464 Signal Handler 1 465 Signal Handler 1 466 Signal Handler 1 467 Signal Handler 1 468 Signal Handler 1 469 Signal Handler 1 470 Signal Handler 1 471 Signal Handler 1 472 Signal Handler 1 473 Signal Handler 1 474 Signal Handler 1 475 Signal Handler 1 476 Signal Handler 1 477 Signal Handler 1 478 Signal Handler 1 479 Signal Handler 1 480 Signal Handler 1 481 Signal Handler 1 482 Signal Handler 1 483 Signal Handler 1 484 Signal Handler 1 485 Signal Handler 1 486 Signal Handler 1 487 Signal Handler 1 488 Signal Handler 1 489 Signal Handler 1 490 Signal Handler 1 491 Signal Handler 1 492 Signal Handler 1 493 Signal Handler 1 494 Signal Handler 1 495 Signal Handler 1 496 Signal Handler 1 497 Signal Handler 1 498 Signal Handler 1 499 Signal Handler 1 500 Signal Handler 1 501 Signal Handler 1 502 Signal Handler 1 503 Signal Handler 1 504 Signal Handler 1 505 Signal Handler 1 506 Here is the segment when the monitoring processes signal handlers are called in a burst Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Monitoring process 140 Why isn't it uniform afterwards. Why are they called in a burst?

Read the article
Help:Graph contest problem: maybe a modified Dijkstra or another alternative algorithm

- by newba

Hi you all, I'm trying to do this contest exercise about graphs: XPTO is an intrepid adventurer (a little too temerarious for his own good) who boasts about exploring every corner of the universe, no matter how inhospitable. In fact, he doesn't visit the planets where people can easily live in, he prefers those where only a madman would go with a very good reason (several millions of credits for instance). His latest exploit is trying to survive in Proxima III. The problem is that Proxima III suffers from storms of highly corrosive acids that destroy everything, including spacesuits that were especially designed to withstand corrosion. Our intrepid explorer was caught in a rectangular area in the middle of one of these storms. Fortunately, he has an instrument that is capable of measuring the exact concentration of acid on each sector and how much damage it does to his spacesuit. Now, he only needs to find out if he can escape the storm. Problem The problem consists of finding an escape route that will allow XPTOto escape the noxious storm. You are given the initial energy of the spacesuit, the size of the rectangular area and the damage that the spacesuit will suffer while standing in each sector. Your task is to find the exit sector, the number of steps necessary to reach it and the amount of energy his suit will have when he leaves the rectangular area. The escape route chosen should be the safest one (i.e., the one where his spacesuit will be the least damaged). Notice that Rodericus will perish if the energy of his suit reaches zero. In case there are more than one possible solutions, choose the one that uses the least number of steps. If there are at least two sectors with the same number of steps (X1, Y1) and (X2, Y2) then choose the first if X1 < X2 or if X1 = X2 and Y1 < Y2. Constraints 0 < E = 30000 the suit's starting energy 0 = W = 500 the rectangle's width 0 = H = 500 rectangle's height 0 < X < W the starting X position 0 < Y < H the starting Y position 0 = D = 10000 the damage sustained in each sector Input The first number given is the number of test cases. Each case will consist of a line with the integers E, X and Y. The following line will have the integers W and H. The following lines will hold the matrix containing the damage D the spacesuit will suffer whilst in the corresponding sector. Notice that, as is often the case for computer geeks, (1,1) corresponds to the upper left corner. Output If there is a solution, the output will be the remaining energy, the exit sector's X and Y coordinates and the number of steps of the route that will lead Rodericus to safety. In case there is no solution, the phrase Goodbye cruel world! will be written. Sample Input 3 40 3 3 7 8 12 11 12 11 3 12 12 12 11 11 12 2 1 13 11 11 12 2 13 2 14 10 11 13 3 2 1 12 10 11 13 13 11 12 13 12 12 11 13 11 13 12 13 12 12 11 11 11 11 13 13 10 10 13 11 12 8 3 4 7 6 4 3 3 2 2 3 2 2 5 2 2 2 3 3 2 1 2 2 3 2 2 4 3 3 2 2 4 1 3 1 4 3 2 3 1 2 2 3 3 0 3 4 10 3 4 7 6 3 3 1 2 2 1 0 2 2 2 4 2 2 5 2 2 1 3 0 2 2 2 2 1 3 3 4 2 3 4 4 3 1 1 3 1 2 2 4 2 2 1 Sample Output 12 5 1 8 Goodbye cruel world! 5 1 4 2 Basically, I think we have to do a modified Dijkstra, in which the distance between nodes is the suit's energy (and we have to subtract it instead of suming up like is normal with distances) and the steps are the ....steps made along the path. The pos with the bester binomial (Energy,num_Steps) is our "way out". Important : XPTO obviously can't move in diagonals, so we have to cut out this cases. I have many ideas, but I have such a problem implementing them... Could someone please help me thinking about this with some code or, at least, ideas? Am I totally wrong?

Read the article
CodePlex Daily Summary for Tuesday, June 28, 2011

CodePlex Daily Summary for Tuesday, June 28, 2011Popular ReleasesCoding4Fun Tools: Coding4Fun.Phone.Toolkit v1.4.3: Fix for prompts not returning the appbarMosaic Project: Mosaic Alpha build 261: - Fixed crash when pinning applications in x64 OS - Added Hub to video widget. It shows videos from Video library (only .wmv and .avi). Can work slow if there are too much files. - Fixed some issues with scrolling - Fixed bug with html widgets - Fixed bug in Gmail widget - Added html today widget missed in previous release - Now Mosaic saves running widgets if you restarting from optionsEnhSim: EnhSim 2.4.9 BETA: 2.4.9 BETAThis release supports WoW patch 4.2 at level 85 To use this release, you must have the Microsoft Visual C++ 2010 Redistributable Package installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=A7B7A05E-6DE6-4D3A-A423-37BF0912DB84 To use the GUI you must have the .NET 4.0 Framework installed. This can be downloaded from http://www.microsoft.com/downloads/en/details.aspx?FamilyID=9cfb2d51-5ff4-4491-b0e5-b386f32c0992 - Added in some of th....NET Reflector Add-Ins: Reflector V7 Add-Ins: All the add-ins compiled for Reflector V7TerrariViewer: TerrariViewer v4.1 [4.0 Bug Fixes]: Version 4.1 ChangelogChanged how users will Open Player files (This change makes it much easier) This allowed me to remove the "Current player file" labels that were present Changed file control icons Added submit bug button Various Bug Fixes Fixed crashes related to clicking on buffs before a character is loaded Fixed crashes related to selecting "No Buff" when choosing a new buff Fixed crashes related to clicking on a "Max" button on the buff tab before a character is loaded Cor...AcDown????? - Anime&Comic Downloader: AcDown????? v3.0 Beta8: ??AcDown???????????????，?????????????????????。????????????????????，??Acfun、Bilibili、???、???、?????，???????????、???????。 AcDown???????????????????????????，???，???????????????????。 AcDown???????C#??，?????"Acfun?????"。 ????32??64? Windows XP/Vista/7 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)?.NET Framework 2.0???(x64)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ??v3.0 Beta8 ?? ??????????????? ???????????????(??????????) ???????...BlogEngine.NET: BlogEngine.NET 2.5: Get DotNetBlogEngine for 3 Months Free! Click Here for More Info 3 Months FREE – BlogEngine.NET Hosting – Click Here! If you want to set up and start using BlogEngine.NET right away, you should download the Web project. If you want to extend or modify BlogEngine.NET, you should download the source code. If you are upgrading from a previous version of BlogEngine.NET, please take a look at the Upgrading to BlogEngine.NET 2.5 instructions. To get started, be sure to check out our installatio...PHP Manager for IIS: PHP Manager 1.2 for IIS 7: This release contains all the functionality available in 62183 plus the following additions: Command Line Support via PowerShell - now it is possible to manage and script PHP installations on IIS by using Windows PowerShell. More information is available at Managing PHP installations with PHP Manager command line. Detection and alert when using local PHP handler - if a web site or a directory has a local copy of PHP handler mapping then the configuration changes made on upper configuration ...MiniTwitter: 1.71: MiniTwitter 1.71 ???? ?? OAuth ???????????? ????????、??????????????????? ???????????????????????SizeOnDisk: 1.0.10.0: Fix: issue 327: size format error when save settings Fix: some UI bindings trouble (sorting, refresh) Fix: user settings file deletion when corrupted Feature: TreeView virtualization (better speed with many folders) Feature: New file type DataGrid column Feature: In KByte view, show size of file < 1024B and > 0 with 3 decimal Feature: New language: Italian Task: Cleanup for speedRawr: Rawr 4.2.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr AddonWe now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including bag and bank items) like Char...HD-Trailers.NET Downloader: HD-Trailer.net Downloader 1.86: This version implements a new config flag "ConsiderTheatricalandNumberedTrailersasIdentical" that for the purposes of Exclusions only Teaser Trailer and one Trailer (named Trailer, Theatrical Traler Trailer No. 1, Trailer 1, Trailer No. 2, etc) will be downloaded. This also includes a bug fix where the .nfo file did not include the -trailer if configured for XBMC.N2 CMS: 2.2: * Web platform installer support available ** Nuget support available What's newDinamico Templates (beta) - an MVC3 & Razor based template pack using the template-first! development paradigm Boilerplate CSS & HTML5 Advanced theming with css comipilation (concrete, dark, roadwork, terracotta) Template-first! development style Content, news, listing, slider, image sizes, search, sitemap, globalization, youtube, google map Display Tokens - replaces text tokens with rendered content (usag...Circuit Diagram: Circuit Diagram v0.5 Beta: New in this release: New components: Ammeter (meter) Voltmeter (meter) Undo/redo functionality for placing/moving components Choose resolution when exporting PNG image New logoMicrosoft Ajax Minifier: Microsoft Ajax Minifier 4.23: XML input file can now specify both JS and CSS output files in the same XML file. Don't output octal escsape sequences in string literals for strict-mode scripts. Expand expression optimizations to handle more instances of logical-not being smaller. Properly handle comments that look like conditional comments but aren't because no @cc_on statement has been encountered. CSS Important comments should start on a new line, and CSS hacks should not have the ! in them. Various other smaller updates.KinectNUI: Jun 25 Alpha Release: Initial public version. No installer needed, just run the EXE.Terraria World Viewer: Version 1.5: Update June 24th Made compatible with the new tiles found in Terraria 1.0.5Kinect Earth Move: KinectEarthMove sample code: Sample code releasedThis is a sample code for Kinect for Windows SDK beta, which was demonstrated on Channel 9 Kinect for Windows SKD beta launch event on June 17 2011. Using color image and skeleton data from Kinect and user in front of Kinect can manipulate the earth between his/her hands.patterns & practices: Project Silk: Project Silk Community Drop 12 - June 22, 2011: Changes from previous drop: Minor code changes. New "Introduction" chapter. New "Modularity" chapter. Updated "Architecture" chapter. Updated "Server-Side Implementation" chapter. Updated "Client Data Management and Caching" chapter. Guidance Chapters Ready for Review The Word documents for the chapters are included with the source code in addition to the CHM to help you provide feedback. The PDF is provided as a separate download for your convenience. Installation Overview To ins...DotNetNuke® Community Edition: 06.00.00 Beta: Beta 1 (Build 2300) includes many important enhancements to the user experience. The control panel has been updated for easier access to the most important features and additional forms have been adapted to the new pattern. This release also includes many bug fixes that make it more stable than previous CTP releases. Beta ForumsNew ProjectsAI4CAD-3D: AI4CAD-3D bir 3 boyutlu tasarim ve ince ve kaba insaat metraj programidir.Beginner 2D game Dev -MokoNa: learning to make 2D games from ground up cae2rampage: A top down XNA-based multipalyer game.CamelWiki: Simple wiki software written in Perl using POD as markup language. CamelWiki can use MySQL, PostgreSQL or SQLite as database backend. DmPoster: An assistant to help us to post danmaku to bilibili.tv website. ????? bilibili.tv ?????????。 It's developed in C#. ????? C#。EasyDP: EasyDP is an open source Silverlight application to upload and manage one's display pictures in a website. It can be integrated to websites not limited to ASP.NET. It posts images up with generic HTTP form data thus it can communicate with HTTP handler written in any server-side programming language.E-Commerce TCP: Projeto E-Commerce para a cadeira de TCP da UFRGS. Semestre 01/2011.Encounter: a host-guest interaction energy calculator: Encounter is a simple program for calculating the interaction energy between two molecules using the output from a GAUSSIAN two-component counterpoise correction calculation. The Counterpoise Correction arises due to the Basis Set Superposition Error in quantum modeling.Excel add-in for regular expressions: Match, replace, and search character strings in Excel using the C++0x <regex> library.FlvBugger: ?Flv????????，???????????????????，????????。Frontdesk: Frontdesk is a form creator and autoresponder program designed in Microsoft ASP.NET MVC 2. It contains a custom member/security implementation, admin area, and lots of flexibility in form & autoresponder creation. It uses an integrated WYSIWYG editor & form field drag-and-drop.His2012: his2012ixbShop: ???????? Open-source e-commerce platformJBot: PL: Program sieciowy JBot jest chatterbotem. EN: Network program JBot is chatterbot.JungleSoft_Lux: luxKillstone PaRSS: Killstone PaRSS is a jQuery Plugin that parses an RSS feed and appends the items from the feed to a UL or OL on your webpage.Killstone PHP Framework: A simple PHP framework that helps organize your PHP application in a Model / View / Controller pattern.Orchard-PhotoTag-FamilyTree: This is an Orchard Module that allows you to tag a photo. It comes with a widget and a Page type. In addition to tagging photo's you can create a family tree/org chart to drill down into. (I originally built this for a family reunion).ResX DSL: ResX DSL is a Domain Specific Language created with Visual Studio DSL Tools. It helps to define a ResX DSL-Model with multi-language and multi-typed Ressources and generates with T4-Templates an ordinary Resx-File as well as a Proxy-Class with a given Ressources-Set.Self-Tracking Entity Generator for WPF and Silverlight: An Entity Framework project item to generate self-tracking entity classes for WPF and Silverlight applications.SharePoint 2010 Print List Ribbon Button: SharePoint 2010 Print List button on Top Ribbon for Calendar listStocks Application: This is technical demo to apply F-Sharp (F#) language in real world application. This application is close to real world enterprise application (with very optimal solutions, at least in 2011). The function of this application is to get Stock Quote Data and Historical Stock Prices from Yahoo Finance The Smart Shopping List: The Smart Shopping List makes it easier to keep track of your purchasesUmbraco Flickr API Search - XSLT Extension: An Umbraco XSLT Extension Package that enables calling the Flickr API to retrieve photos from a tag(s), user, group, and text search. The underlying engine is built off of the FlickrNET library (http://www.codeplex.com/FlickrNet).WASTLib: WASTLib is the acronim of Web Application Security Testing Library. Its main purpose is to easly create security tests for your web application. WinPanel: WinPanel ist ein nachgemachtes GNOME-Panel, dass auf Windows läuft. Es wird in Visual Basic 2010 Express programmiert.

Read the article
CodePlex Daily Summary for Saturday, March 17, 2012

CodePlex Daily Summary for Saturday, March 17, 2012Popular ReleasesAutoSPEditor: AutoSPEditor Installer: Installs the current version of the AutoSPEditor using ClickOnce. Your application will be updated automatically.Javascript .NET: Javascript .NET v0.6: Upgraded to the latest stable branch of v8 (/tags/3.9.18), and switched to using their scons build system. We no longer include v8 source code as part of this project's source code. Simultaneous multithreaded use of v8 now supported (v8 Isolates), although different contexts may not share objects or call each other. 64-bit .Net 4.0 DLL now included. (Download now includes x86 and x64 for both .Net 3.5 and .Net 4.0.)MyRouter (Virtual WiFi Router): MyRouter 1.0.6: This release should be more stable there were a few bug fixes including the x64 issue as well as an error popping up when MyRouter started this was caused by a NULL valuePulse: Pulse Beta 4: This version is still in development but should include: Logging and error handling have been greatly improved. If you run into an error or Pulse crashes make sure to check the Log folder for a recently modified log file so you can report the details of the issue A bunch of new features for the Wallbase.cc provider. Cleaner separation between inputs, downloading and output. Input and downloading are fairly clean now but outputs are still mixed up in the mix which I'm trying to resolve ...Google Books Downloader for Windows: Google Books Downloader-2.0.0.0.: Google Books DownloaderFinestra Virtual Desktops: 2.5.4501: This is a very minor update release. Please see the information about the 2.5 and 2.5.4500 releases for more information on recent changes. This update did not even have an automatic update triggered for it. Adds error checking and reporting to all threads, not only those with message loopsAcDown????? - Anime&Comic Downloader: AcDown????? v3.9.2: ?? ●AcDown??????????、??、??????，????1M，????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。??????AcPlay?????，??????、????????????????。 ● AcDown???????????????????????????，???，???????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ????????????? ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)，?????"?????????"??? ??????????????，??????????： ??"AcDo...ArcGIS Editor for OpenStreetMap: ArcGIS Editor for OSM 2.0 Release Candidate: Your feedback is welcome - and this is your last chance to get your fixes in for this version! Includes installer for both Feature Server extension and Desktop extension, enhanced functionality for the Desktop tools, and enhanced built-in Javascript Editor for the Feature Server component. This release candidate includes fixes to beta 4 that accommodate domain users for setting up the Server Component, and fixes for reporting/uploading references tracked in the revision table. See Code In-P...C.B.R. : Comic Book Reader: CBR 0.6: 20 Issue trackers are closed and a lot of bugs too Localize view is now MVVM and delete is working. Added the unused flag (take care that it goes to true only when displaying screen elements) Backstage - new input/output format choice control for the conversion Backstage - Add display, behaviour and register file type options in the extended options dialog Explorer list view has been transformed to a custom control. New group header, colunms order and size are saved Single insta...Windows Azure Toolkit for Windows 8: Windows Azure Toolkit for Windows 8 Consumer Prv: Windows Azure Toolkit for Windows 8 Consumer Preview - Preview Release v1.2.1Minor updates to setup experience: Check for WebPI before install Dependency Check updated to support the following VS 11 and VS 2010 SKUs Ultimate, Premium, Professional and Express Certs Windows Azure Toolkit for Windows 8 Consumer Preview - Preview Release v1.2.0 Please download this for Windows Azure Toolkit for Windows 8 functionality on Windows 8 Consumer Preview. The core features of the toolkit include:...Facebook Graph Toolkit: Facebook Graph Toolkit 3.0: ships with JSON Toolkit v3.0, offering parse speed up to 10 times of last version supports Facebook's new auth dialog supports new extend access token endpoint new example Page Tab app filter Graph Api connections using dates fixed bugs in Page Tab appsCODE Framework: 4.0.20312.0: This version includes significant improvements in the WPF system (and the WPF MVVM/MVC system). This includes new styles for Metro controls and layouts. Improved color handling. It also includes an improved theme/style swapping engine down to active (open) views. There also are various other enhancements and small fixes throughout the entire framework.ScintillaNET: ScintillaNET 2.4: 3/12/2012 Jacob Slusser Added support for annotations. Issues Fixed with this Release Issue # Title 25012 25012 25018 25018 25023 25023 25014 25014 Visual Studio ALM Quick Reference Guidance: v3 - For Visual Studio 11: RELEASE README Welcome to the BETA release of the Quick Reference Guide preview As this is a BETA release and the quality bar for the final Release has not been achieved, we value your candid feedback and recommend that you do not use or deploy these BETA artifacts in a production environment. Quality-Bar Details Documentation has been reviewed by Visual Studio ALM Rangers Documentation has not been through an independent technical review Documentation ...AvalonDock: AvalonDock 2.0.0345: Welcome to early alpha release of AvalonDock 2.0 I've completely rewritten AvalonDock in order to take full advantage of the MVVM pattern. New version also boost a lot of new features: 1) Deep separation between model and layout. 2) Full WPF binding support thanks to unified logical tree between main docking manager, auto-hide windows and floating windows. 3) Support for Aero semi-maximized windows feature. 4) Support for multiple panes in the same floating windows. For a short list of new f...Windows Azure PowerShell Cmdlets: Windows Azure PowerShell Cmdlets 2.2.2: Changes Added Start Menu Item for Easy Startup Added Link to Getting Started Document Added Ability to Persist Subscription Data to Disk Fixed Get-Deployment to not throw on empty slot Simplified numerous default values for cmdlets Breaking Changes: -SubscriptionName is now mandatory in Set-Subscription. -DefaultStorageAccountName and -DefaultStorageAccountKey parameters were removed from Set-Subscription. Instead, when adding multiple accounts to a subscription, each one needs to be added ...IronPython: 2.7.2.1: On behalf of the IronPython team, I'm happy to announce the final release IronPython 2.7.2. This release includes everything from IronPython 54498 and 62475 as well. Like all IronPython 2.7-series releases, .NET 4 is required to install it. Installing this release will replace any existing IronPython 2.7-series installation. Unlike previous releases, the assemblies for all supported platforms are included in the installer as well as the zip package, in the "Platforms" directory. IronPython 2...Kooboo CMS: Kooboo CMS 3.2.0.0: Breaking changes: When upgrade from previous versions, MUST reset the all the content type templates, otherwise the content manager might get a compile error. New features Integrate with Windows azure. See: http://wiki.kooboo.com/?wiki=Kooboo CMS on Azure Complete solution to deploy on load balance servers. See: http://wiki.kooboo.com/?wiki=Kooboo CMS load balance Update Jquery and Jquery ui to the lastest version(Jquery 1.71, Jquery UI 1.8.16). Tree style text content editing. See:h...Extensions for Reactive Extensions (Rxx): Rxx 1.3: Please read the latest release notes for details about what's new. Related Work Items Content SummaryRxx provides the following features. See the Documentation for details. Many IObservable<T> extension methods and IEnumerable<T> extension methods. Many wrappers that convert asynchronous Framework Class Library APIs into observables. Many useful types such as ListSubject<T>, DictionarySubject<T>, CommandSubject, ViewModel, ObservableDynamicObject, Either<TLeft, TRight>, Maybe<T>, Scala...Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.47: Properly output escaped characters in CSS identifiers throw an EOF error when parsing a CSS selector that doesn't end in a declaration block chased down a stack-overflow issue with really large JS sources. Needed to flatten out the AST tree for adjacent expression statements that the application merges into a single expression statement, or that already contain large, comma-separated expressions in the original source. fix issue #17569: tie together the -debug switch with the DEBUG defi...New ProjectsCOBOL Bubble Sort: The famous Bubble Sort algorithm using COBOLCross Site Media Dashboard (webpart) for SharePoint video content: View video content in easy to configure dashboard structure. Supports a vast range of video formatsDataObjects.Net Samples: DataObjects.Net SamplesDev Tracking Tool: Dev Tracking Tool is thought to help software developers keeping track of their activities in a fast way, and use these informations for later update of tasks in other informatic systems (i.e.: tracking tasks in TFS and/or other tracking tools).Governance Checklist - Create/manage your Governance Checklist: Governance Checklist - Create/manage your Governance Checklist. SharePoint Governance Checklist generated as a starting point however you can update to your own criteria. Visual Guages to show the status of your governance progresslibspotify.NET - a managed interop library for libspotify: libspotify.NET is a simple interop wrapper library for libspotify written in C#. It enables .NET developers to write applications that can browse, search, and stream digital music from the Spotify platform. This project is compatible with libspotify API version 10.1.16. Requires libspotify.dll, a Spotify premium account, and an application API key. More info on the libspotify API at http://developer.spotify.com/en/libspotify/overview/ Media.Net: All-In-One Media Player for Windows XP, Vista, Windows 7 and Windows 8.MisTutoriales: MisTutoriales Ejemplos de programación.mobile video: mobile videoMugen MVVM Toolkit: Mugen MVVM Toolkit makes it easier to develop Silverlight, WPF and WP7 applications using the Model-View-ViewModel design pattern. It is very easy to use. It combines the pattern of DI (dependency injection) and MVVM (Model-View-ViewModel).Project SIMPLE Orca: SIMPLE makes it easier for non-programmers to create simple applications. You'll no longer have to learn an entire language in order to create that simple application you've been stressing over. S imple And I deal M acroed P rogramming L anguage For E aseRelational data Transfer Application: Relational data Transfer Application helps to move data scenarios from One relational database to other Relational database without moving entire tables. Basically this applciation moves a given data row along with its relational data to destination database. rGUI: rGUI is an open source .NET front-end for Robocopy written in C#. It is designed for users already familiar with the Robocopy command-line switches and what they do, but who want the command parameters presented in a visual way.S#: Spontaneous Sharp: A mix of very easy to use c# libraries, born out of spontaneous needs to simplify a large number of programming tasks in .NET C#.SDF - Smart Document Framework: Smart Document Framework offers an alternative to the FlowDocument which provides a simpler rendering engine and allows for better pagination.Shatong: Shatong SystemSPD 2007 Custom Activity Pause Until CheckOut = None: This activity can be added to the beginning of a SharePoint Designer 2007 workflow to pause the workflow until the item is no longer checked out (soft or hard checkout)Spontaneous XNA Library (SXL): Yet another XNA Library that has arisen from various spontaneous needs. Hopefully it can be as helpful to others as it has been to me.TeaFiles.Net - time series storage: TeaFiles.Net is an API for TeaFiles that makes it easy to store and exchange time series data between .Net programs and C++, Python, R and other applications. Written in C#. Find more details about the file specification, other APIs and tools at discretelogics.comTypePipe: TypePipe allows you to modify existing CLR types using a simple, expression-based API. Modifications from several tools and libraries (AOP, IoC etc.) can be combined. Types are generated via Reflection.Emit or user-defined back-ends.UCB_12_1: This is a research projectUCB_12_2: UCB_12_2UCB_12_3: UCB_12_3UCB_12_4: UCB_12_4UCB_12_Common: UCB_12_CommonVG Task Manager: task manager demo project created by Vivek Gupta.WP7 Map Control: Lightweight universal map control for Windows Phone 7xRM#: xRM# is focused on boosting productivity while developing JavaScript customizations for Microsoft Dynamics CRM 2011. xRM# provided a platform to scribble code in C# and translating them to JavaScript snippet for xRM customizations. Developers can benefit from structural and coherent flow of using existing C# coding guidelines. Pseudo data types, IntelliSense and Code Documentation reduce code look-ups and increase productivity. xRM# also supports deploying generated scripts as minified ver...

Read the article
Windows Azure Service Bus Splitter and Aggregator

- by Alan Smith

This article will cover basic implementations of the Splitter and Aggregator patterns using the Windows Azure Service Bus. The content will be included in the next release of the “Windows Azure Service Bus Developer Guide”, along with some other patterns I am working on. I’ve taken the pattern descriptions from the book “Enterprise Integration Patterns” by Gregor Hohpe. I bought a copy of the book in 2004, and recently dusted it off when I started to look at implementing the patterns on the Windows Azure Service Bus. Gregor has also presented an session in 2011 “Enterprise Integration Patterns: Past, Present and Future” which is well worth a look. I’ll be covering more patterns in the coming weeks, I’m currently working on Wire-Tap and Scatter-Gather. There will no doubt be a section on implementing these patterns in my “SOA, Connectivity and Integration using the Windows Azure Service Bus” course. There are a number of scenarios where a message needs to be divided into a number of sub messages, and also where a number of sub messages need to be combined to form one message. The splitter and aggregator patterns provide a definition of how this can be achieved. This section will focus on the implementation of basic splitter and aggregator patens using the Windows Azure Service Bus direct programming model. In BizTalk Server receive pipelines are typically used to implement the splitter patterns, with sequential convoy orchestrations often used to aggregate messages. In the current release of the Service Bus, there is no functionality in the direct programming model that implements these patterns, so it is up to the developer to implement them in the applications that send and receive messages. Splitter A message splitter takes a message and spits the message into a number of sub messages. As there are different scenarios for how a message can be split into sub messages, message splitters are implemented using different algorithms. The Enterprise Integration Patterns book describes the splatter pattern as follows: How can we process a message if it contains multiple elements, each of which may have to be processed in a different way? Use a Splitter to break out the composite message into a series of individual messages, each containing data related to one item. The Enterprise Integration Patterns website provides a description of the Splitter pattern here. In some scenarios a batch message could be split into the sub messages that are contained in the batch. The splitting of a message could be based on the message type of sub-message, or the trading partner that the sub message is to be sent to. Aggregator An aggregator takes a stream or related messages and combines them together to form one message. The Enterprise Integration Patterns book describes the aggregator pattern as follows: How do we combine the results of individual, but related messages so that they can be processed as a whole? Use a stateful filter, an Aggregator, to collect and store individual messages until a complete set of related messages has been received. Then, the Aggregator publishes a single message distilled from the individual messages. The Enterprise Integration Patterns website provides a description of the Aggregator pattern here. A common example of the need for an aggregator is in scenarios where a stream of messages needs to be combined into a daily batch to be sent to a legacy line-of-business application. The BizTalk Server EDI functionality provides support for batching messages in this way using a sequential convoy orchestration. Scenario The scenario for this implementation of the splitter and aggregator patterns is the sending and receiving of large messages using a Service Bus queue. In the current release, the Windows Azure Service Bus currently supports a maximum message size of 256 KB, with a maximum header size of 64 KB. This leaves a safe maximum body size of 192 KB. The BrokeredMessage class will support messages larger than 256 KB; in fact the Size property is of type long, implying that very large messages may be supported at some point in the future. The 256 KB size restriction is set in the service bus components that are deployed in the Windows Azure data centers. One of the ways of working around this size restriction is to split large messages into a sequence of smaller sub messages in the sending application, send them via a queue, and then reassemble them in the receiving application. This scenario will be used to demonstrate the pattern implementations. Implementation The splitter and aggregator will be used to provide functionality to send and receive large messages over the Windows Azure Service Bus. In order to make the implementations generic and reusable they will be implemented as a class library. The splitter will be implemented in the LargeMessageSender class and the aggregator in the LargeMessageReceiver class. A class diagram showing the two classes is shown below. Implementing the Splitter The splitter will take a large brokered message, and split the messages into a sequence of smaller sub-messages that can be transmitted over the service bus messaging entities. The LargeMessageSender class provides a Send method that takes a large brokered message as a parameter. The implementation of the class is shown below; console output has been added to provide details of the splitting operation. public class LargeMessageSender { private static int SubMessageBodySize = 192 * 1024; private QueueClient m_QueueClient; public LargeMessageSender(QueueClient queueClient) { m_QueueClient = queueClient; } public void Send(BrokeredMessage message) { // Calculate the number of sub messages required. long messageBodySize = message.Size; int nrSubMessages = (int)(messageBodySize / SubMessageBodySize); if (messageBodySize % SubMessageBodySize != 0) { nrSubMessages++; } // Create a unique session Id. string sessionId = Guid.NewGuid().ToString(); Console.WriteLine("Message session Id: " + sessionId); Console.Write("Sending {0} sub-messages", nrSubMessages); Stream bodyStream = message.GetBody<Stream>(); for (int streamOffest = 0; streamOffest < messageBodySize; streamOffest += SubMessageBodySize) { // Get the stream chunk from the large message long arraySize = (messageBodySize - streamOffest) > SubMessageBodySize ? SubMessageBodySize : messageBodySize - streamOffest; byte[] subMessageBytes = new byte[arraySize]; int result = bodyStream.Read(subMessageBytes, 0, (int)arraySize); MemoryStream subMessageStream = new MemoryStream(subMessageBytes); // Create a new message BrokeredMessage subMessage = new BrokeredMessage(subMessageStream, true); subMessage.SessionId = sessionId; // Send the message m_QueueClient.Send(subMessage); Console.Write("."); } Console.WriteLine("Done!"); }} The LargeMessageSender class is initialized with a QueueClient that is created by the sending application. When the large message is sent, the number of sub messages is calculated based on the size of the body of the large message. A unique session Id is created to allow the sub messages to be sent as a message session, this session Id will be used for correlation in the aggregator. A for loop in then used to create the sequence of sub messages by creating chunks of data from the stream of the large message. The sub messages are then sent to the queue using the QueueClient. As sessions are used to correlate the messages, the queue used for message exchange must be created with the RequiresSession property set to true. Implementing the Aggregator The aggregator will receive the sub messages in the message session that was created by the splitter, and combine them to form a single, large message. The aggregator is implemented in the LargeMessageReceiver class, with a Receive method that returns a BrokeredMessage. The implementation of the class is shown below; console output has been added to provide details of the splitting operation. public class LargeMessageReceiver { private QueueClient m_QueueClient; public LargeMessageReceiver(QueueClient queueClient) { m_QueueClient = queueClient; } public BrokeredMessage Receive() { // Create a memory stream to store the large message body. MemoryStream largeMessageStream = new MemoryStream(); // Accept a message session from the queue. MessageSession session = m_QueueClient.AcceptMessageSession(); Console.WriteLine("Message session Id: " + session.SessionId); Console.Write("Receiving sub messages"); while (true) { // Receive a sub message BrokeredMessage subMessage = session.Receive(TimeSpan.FromSeconds(5)); if (subMessage != null) { // Copy the sub message body to the large message stream. Stream subMessageStream = subMessage.GetBody<Stream>(); subMessageStream.CopyTo(largeMessageStream); // Mark the message as complete. subMessage.Complete(); Console.Write("."); } else { // The last message in the sequence is our completeness criteria. Console.WriteLine("Done!"); break; } } // Create an aggregated message from the large message stream. BrokeredMessage largeMessage = new BrokeredMessage(largeMessageStream, true); return largeMessage; } } The LargeMessageReceiver initialized using a QueueClient that is created by the receiving application. The receive method creates a memory stream that will be used to aggregate the large message body. The AcceptMessageSession method on the QueueClient is then called, which will wait for the first message in a message session to become available on the queue. As the AcceptMessageSession can throw a timeout exception if no message is available on the queue after 60 seconds, a real-world implementation should handle this accordingly. Once the message session as accepted, the sub messages in the session are received, and their message body streams copied to the memory stream. Once all the messages have been received, the memory stream is used to create a large message, that is then returned to the receiving application. Testing the Implementation The splitter and aggregator are tested by creating a message sender and message receiver application. The payload for the large message will be one of the webcast video files from http://www.cloudcasts.net/, the file size is 9,697 KB, well over the 256 KB threshold imposed by the Service Bus. As the splitter and aggregator are implemented in a separate class library, the code used in the sender and receiver console is fairly basic. The implementation of the main method of the sending application is shown below. static void Main(string[] args) { // Create a token provider with the relevant credentials. TokenProvider credentials = TokenProvider.CreateSharedSecretTokenProvider (AccountDetails.Name, AccountDetails.Key); // Create a URI for the serivce bus. Uri serviceBusUri = ServiceBusEnvironment.CreateServiceUri ("sb", AccountDetails.Namespace, string.Empty); // Create the MessagingFactory MessagingFactory factory = MessagingFactory.Create(serviceBusUri, credentials); // Use the MessagingFactory to create a queue client QueueClient queueClient = factory.CreateQueueClient(AccountDetails.QueueName); // Open the input file. FileStream fileStream = new FileStream(AccountDetails.TestFile, FileMode.Open); // Create a BrokeredMessage for the file. BrokeredMessage largeMessage = new BrokeredMessage(fileStream, true); Console.WriteLine("Sending: " + AccountDetails.TestFile); Console.WriteLine("Message body size: " + largeMessage.Size); Console.WriteLine(); // Send the message with a LargeMessageSender LargeMessageSender sender = new LargeMessageSender(queueClient); sender.Send(largeMessage); // Close the messaging facory. factory.Close(); } The implementation of the main method of the receiving application is shown below. static void Main(string[] args) { // Create a token provider with the relevant credentials. TokenProvider credentials = TokenProvider.CreateSharedSecretTokenProvider (AccountDetails.Name, AccountDetails.Key); // Create a URI for the serivce bus. Uri serviceBusUri = ServiceBusEnvironment.CreateServiceUri ("sb", AccountDetails.Namespace, string.Empty); // Create the MessagingFactory MessagingFactory factory = MessagingFactory.Create(serviceBusUri, credentials); // Use the MessagingFactory to create a queue client QueueClient queueClient = factory.CreateQueueClient(AccountDetails.QueueName); // Create a LargeMessageReceiver and receive the message. LargeMessageReceiver receiver = new LargeMessageReceiver(queueClient); BrokeredMessage largeMessage = receiver.Receive(); Console.WriteLine("Received message"); Console.WriteLine("Message body size: " + largeMessage.Size); string testFile = AccountDetails.TestFile.Replace(@"\In\", @"\Out\"); Console.WriteLine("Saving file: " + testFile); // Save the message body as a file. Stream largeMessageStream = largeMessage.GetBody<Stream>(); largeMessageStream.Seek(0, SeekOrigin.Begin); FileStream fileOut = new FileStream(testFile, FileMode.Create); largeMessageStream.CopyTo(fileOut); fileOut.Close(); Console.WriteLine("Done!"); } In order to test the application, the sending application is executed, which will use the LargeMessageSender class to split the message and place it on the queue. The output of the sender console is shown below. The console shows that the body size of the large message was 9,929,365 bytes, and the message was sent as a sequence of 51 sub messages. When the receiving application is executed the results are shown below. The console application shows that the aggregator has received the 51 messages from the message sequence that was creating in the sending application. The messages have been aggregated to form a massage with a body of 9,929,365 bytes, which is the same as the original large message. The message body is then saved as a file. Improvements to the Implementation The splitter and aggregator patterns in this implementation were created in order to show the usage of the patterns in a demo, which they do quite well. When implementing these patterns in a real-world scenario there are a number of improvements that could be made to the design. Copying Message Header Properties When sending a large message using these classes, it would be great if the message header properties in the message that was received were copied from the message that was sent. The sending application may well add information to the message context that will be required in the receiving application. When the sub messages are created in the splitter, the header properties in the first message could be set to the values in the original large message. The aggregator could then used the values from this first sub message to set the properties in the message header of the large message during the aggregation process. Using Asynchronous Methods The current implementation uses the synchronous send and receive methods of the QueueClient class. It would be much more performant to use the asynchronous methods, however doing so may well affect the sequence in which the sub messages are enqueued, which would require the implementation of a resequencer in the aggregator to restore the correct message sequence. Handling Exceptions In order to keep the code readable no exception handling was added to the implementations. In a real-world scenario exceptions should be handled accordingly.

Read the article
Resulting .exe from PyInstaller with wxPython crashing

- by Helgi Hrafn Gunnarsson

I'm trying to compile a very simple wxPython script into an executable by using PyInstaller on Windows Vista. The Python script is nothing but a Hello World in wxPython. I'm trying to get that up and running as a Windows executable before I add any of the features that the program needs to have. But I'm already stuck. I've jumped through some loops in regards to MSVCR90.DLL, MSVCP90.DLL and MSVCPM90.DLL, which I ended up copying from my Visual Studio installation (C:\Program Files\Microsoft Visual Studio 9.0\VC\redist\x86\Microsoft.VC90.CRT). As according to the instructions for PyInstaller, I run: Command: Configure.py Output: I: computing EXE_dependencies I: Finding TCL/TK... I: could not find TCL/TK I: testing for Zlib... I: ... Zlib available I: Testing for ability to set icons, version resources... I: ... resource update available I: Testing for Unicode support... I: ... Unicode available I: testing for UPX... I: ...UPX available I: computing PYZ dependencies... So far, so good. I continue. Command: Makespec.py -F guitest.py Output: wrote C:\Code\PromoUSB\guitest.spec now run Build.py to build the executable Then there's the final command. Command: Build.py guitest.spec Output: checking Analysis building Analysis because out0.toc non existent running Analysis out0.toc Analyzing: C:\Python26\pyinstaller-1.3\support\_mountzlib.py Analyzing: C:\Python26\pyinstaller-1.3\support\useUnicode.py Analyzing: guitest.py Warnings written to C:\Code\PromoUSB\warnguitest.txt checking PYZ rebuilding out1.toc because out1.pyz is missing building PYZ out1.toc checking PKG rebuilding out3.toc because out3.pkg is missing building PKG out3.pkg checking ELFEXE rebuilding out2.toc because guitest.exe missing building ELFEXE out2.toc I get the resulting 'guitest.exe' file, but upon execution, it "simply crashes"... and there is no debug info. It's just one of those standard Windows Vista crashes. The script itself, guitest.py runs just fine by itself. It only crashes as an executable, and I'm completely lost. I don't even know what to look for, since nothing I've tried has returned any relevant results. Another file is generated as a result of the compilation process, called 'warnguitest.txt'. Here are its contents. W: no module named posix (conditional import by os) W: no module named optik.__all__ (top-level import by optparse) W: no module named readline (delayed, conditional import by cmd) W: no module named readline (delayed import by pdb) W: no module named pwd (delayed, conditional import by posixpath) W: no module named org (top-level import by pickle) W: no module named posix (delayed, conditional import by iu) W: no module named fcntl (conditional import by subprocess) W: no module named org (top-level import by copy) W: no module named _emx_link (conditional import by os) W: no module named optik.__version__ (top-level import by optparse) W: no module named fcntl (top-level import by tempfile) W: __all__ is built strangely at line 0 - collections (C:\Python26\lib\collections.pyc) W: delayed exec statement detected at line 0 - collections (C:\Python26\lib\collections.pyc) W: delayed conditional __import__ hack detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed exec statement detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed conditional __import__ hack detected at line 0 - doctest (C:\Python26\lib\doctest.pyc) W: delayed __import__ hack detected at line 0 - encodings (C:\Python26\lib\encodings\__init__.pyc) W: __all__ is built strangely at line 0 - optparse (C:\Python26\pyinstaller-1.3\optparse.pyc) W: __all__ is built strangely at line 0 - dis (C:\Python26\lib\dis.pyc) W: delayed eval hack detected at line 0 - os (C:\Python26\lib\os.pyc) W: __all__ is built strangely at line 0 - __future__ (C:\Python26\lib\__future__.pyc) W: delayed conditional __import__ hack detected at line 0 - unittest (C:\Python26\lib\unittest.pyc) W: delayed conditional __import__ hack detected at line 0 - unittest (C:\Python26\lib\unittest.pyc) W: __all__ is built strangely at line 0 - tokenize (C:\Python26\lib\tokenize.pyc) W: __all__ is built strangely at line 0 - wx (C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx\__init__.pyc) W: __all__ is built strangely at line 0 - wx (C:\Python26\lib\site-packages\wx-2.8-msw-unicode\wx\__init__.pyc) W: delayed exec statement detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed eval hack detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed eval hack detected at line 0 - bdb (C:\Python26\lib\bdb.pyc) W: delayed __import__ hack detected at line 0 - pickle (C:\Python26\lib\pickle.pyc) W: delayed __import__ hack detected at line 0 - pickle (C:\Python26\lib\pickle.pyc) W: delayed conditional exec statement detected at line 0 - iu (C:\Python26\pyinstaller-1.3\iu.pyc) W: delayed conditional exec statement detected at line 0 - iu (C:\Python26\pyinstaller-1.3\iu.pyc) W: delayed eval hack detected at line 0 - gettext (C:\Python26\lib\gettext.pyc) W: delayed __import__ hack detected at line 0 - optik.option_parser (C:\Python26\pyinstaller-1.3\optik\option_parser.pyc) W: delayed conditional eval hack detected at line 0 - warnings (C:\Python26\lib\warnings.pyc) W: delayed conditional __import__ hack detected at line 0 - warnings (C:\Python26\lib\warnings.pyc) W: __all__ is built strangely at line 0 - optik (C:\Python26\pyinstaller-1.3\optik\__init__.pyc) W: delayed exec statement detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed conditional eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed conditional eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) W: delayed eval hack detected at line 0 - pdb (C:\Python26\lib\pdb.pyc) I don't know what the heck to make of any of that. Again, my searches have been fruitless.

Read the article
Using Deployment Manager

- by Jess Nickson

One of the teams at Red Gate has been working very hard on a new product: Deployment Manager. Deployment Manager is a free tool that lets you deploy updates to .NET apps, services and databases through a central dashboard. Deployment Manager has been out for a while, but I must admit that even though I work in the same building, until now I hadn’t even looked at it. My job at Red Gate is to develop and maintain some of our community sites, which involves carrying out regular deployments. One of the projects I have to deploy on a fairly regular basis requires me to send my changes to our build server, TeamCity. The output is a Zip file of the build. I then have to go and find this file, copy it across to the staging machine, extract it, and copy some of the sub-folders to other places. In order to keep track of what builds are running, I need to rename the folders accordingly. However, even after all that, I still need to go and update the site and its applications in IIS to point at these new builds. Oh, and then, I have to repeat the process when I deploy on production. Did I mention the multiple configuration files that then need updating as well? Manually? The whole process can take well over half an hour. I’m ready to try out a new process. Deployment Manager is designed to massively simplify the deployment processes from what could be lots of manual copying of files, managing of configuration files, and database upgrades down to a few clicks. It’s a big promise, but I decided to try out this new tool on one of the smaller ASP.NET sites at Red Gate, Format SQL (the result of a Red Gate Down Tools week). I wanted to add some new functionality, but given it was a new site with no set way of doing things, I was reluctant to have to manually copy files around servers. I decided to use this opportunity as a chance to set the site up on Deployment Manager and check out its functionality. What follows is a guide on how to get set up with Deployment Manager, a brief overview of its features, and what I thought of the experience. To follow along with the instructions that follow, you’ll first need to download Deployment Manager from Red Gate. It has a free ‘Starter Edition’ which allows you to create up to 5 projects and agents (machines you deploy to), so it’s really easy to get up and running with a fully-featured version. The Initial Set Up After installing the product and setting it up using the administration tool it provides, I launched Deployment Manager by going to the URL and port I had set it to run on. This loads up the main dashboard. The dashboard does a good job of guiding me through the process of getting started, beginning with a prompt to create some environments. 1. Setting up Environments The dashboard informed me that I needed to add new ‘Environments’, which are essentially ways of grouping the machines you want to deploy to. The environments that get added will show up on the main dashboard. I set up two such environments for this project: ‘staging’ and ‘live’. 2. Add Target Machines Once I had created the environments, I was ready to add ‘target machine’s to them, which are the actual machines that the deployment will occur on. To enable me to deploy to a new machine, I needed to download and install an Agent on it. The ‘Add target machine’ form on the ‘Environments’ page helpfully provides a link for downloading an Agent. Once the agent has been installed, it is just a case of copying the server key to the agent, and the agent key to the server, to link them up. 3. Run Health Check If, after adding your new target machine, the ‘Status’ flags an error, it is possible that the Agent and Server keys have not been entered correctly on both Deployment Manager and the Agent service. You can ‘Check Health’, which will give you more information on any issues. It is probably worth running this regardless of what status the ‘Environments’ dashboard is claiming, just to be on the safe side. 4. Add Projects Going back to the main Dashboard tab at this point, I found that it was telling me that I needed to set up a new project. I clicked the ‘project’ link to get started, gave my new project a name and clicked ‘Create’. I was then redirected to the ‘Steps’ page for the project under the Projects tab. 5. Package Steps The ‘Steps’ page was fairly empty when it first loaded. Adding a ‘step’ allowed me to specify what packages I wanted to grab for the deployment. This part requires a NuGet package feed to be set up, which is where Deployment Manager will look for the packages. At Red Gate, we already have one set up, so I just needed to tell Deployment Manager about it. Don’t worry; there is a nice guide included on how to go about doing all of this on the ‘Package Feeds’ page in ‘Settings’, if you need any help with setting these bits up. At Red Gate we use a build server, TeamCity, which is capable of publishing built projects to the NuGet feed we use. This makes the workflow for Format SQL relatively simple: when I commit a change to the project, the build server is configured to grab those changes, build the project, and spit out a new NuGet package to the Red Gate NuGet package feed. My ‘package step’, therefore, is set up to look for this package on our feed. The final part of package step was simply specifying which machines from what environments I wanted to be able to deploy the project to. Format SQL Now the main Dashboard showed my new project and environment in a rather empty looking grid. Clicking on my project presented me with a nice little message telling me that I am now ready to create my first release! Create a release Next I clicked on the ‘Create release’ button in the Projects tab. If your feeds and package step(s) were set up correctly, then Deployment Manager will automatically grab the latest version of the NuGet package that you want to deploy. As you can see here, it was able to pick up the latest build for Format SQL and all I needed to do was enter a version number and description of the release. As you can see underneath ‘Version number’, it keeps track of what version the previous release was given. Clicking ‘Create’ created the release and redirected me to a summary of it where I could check the details before deploying. I clicked ‘Deploy this release’ and chose the environment I wanted to deploy to and…that’s it. Deployment Manager went off and deployed it for me. Once I clicked ‘Deploy release’, Deployment Manager started to automatically update and provide continuing feedback about the process. If any errors do arise, then I can expand the results to see where it went wrong. That’s it, I’m done! Keep in mind, if you hit errors with the deployment itself then it is possible to view the log output to try and determine where these occurred. You can keep expanding the logs to narrow down the problem. The screenshot below is not from my Format SQL deployment, but I thought I’d post one to demonstrate the logging output available. Features One of the best bits of Deployment Manager for me is the ability to very, very easily deploy the same release to multiple machines. Deploying this same release to production was just a case of selecting the deployment and choosing the ‘live’ environment as the place to deploy to. Following on from this is the fact that, as Deployment Manager keeps track of all of your releases, it is extremely easy to roll back to a previous release if anything goes pear-shaped! You can view all your previous releases and select one to re-deploy. I needed this feature more than once when differences in my production and staging machines lead to some odd behavior. Another option is to use the TeamCity integration available. This enables you to set Deployment Manager up so that it will automatically create releases and deploy these to an environment directly from TeamCity, meaning that you can always see the latest version up and running without having to do anything. Machine Specific Deployments ‘What about custom configuration files?’ I hear you shout. Certainly, it was one of my concerns. Our setup on the staging machine is not in line with that on production. What this means is that, should we deploy the same configuration to both, one of them is going to break. Thankfully, it turns out that Deployment Manager can deal with this. Given I had environments ‘staging’ and ‘live’, and that staging used the project’s web.config file, while production (‘live’) required the config file to undergo some transformations, I simply added a web.live.config file in the project, so that it would be included as part of the NuGet package. In this file, I wrote the XML document transformations I needed and Deployment Manager took care of the rest. Another option is to set up ‘variables’ for your project, which allow you to specify key-value pairs for your configuration file, and which environment to apply them to. You’ll find Variables as a full left-hand submenu within the ‘Projects’ tab. These features will definitely be of interest if you have a large number of environments! There are still many other features that I didn’t get a chance to play around with like running PowerShell scripts for more personalised deployments. Maybe next time! Also, let’s not forget that my use case in this article is a very simple one – deploying a single package. I don’t believe that all projects will be equally as simple, but I already appreciate how much easier Deployment Manager could make my life. I look forward to the possibility of moving our other sites over to Deployment Manager in the near future. Conclusion In this article I have described the steps involved in setting up and configuring an instance of Deployment Manager, creating a new automated deployment process, and using this to actually carry out a deployment. I’ve tried to mention some of the features I found particularly useful, such as error logging, easy release management allowing you to deploy the same release multiple times, and configuration file transformations. If I had to point out one issue, then it would be that the releases are immutable, which from a development point of view makes sense. However, this causes confusion where I have to create a new release to deploy to a newly set up environment – I cannot simply deploy an old release onto a new environment, the whole release needs to be recreated. I really liked how easy it was to get going with the product. Setting up Format SQL and making a first deployment took very little time. Especially when you compare it to how long it takes me to manually deploy the other site, as I described earlier. I liked how it let me know what I needed to do next, with little messages flagging up that I needed to ‘create environments’ or ‘add some deployment steps’ before I could continue. I found the dashboard incredibly convenient. As the number of projects and environments increase, it might become awkward to try and search them and find out what state they are in. Instead, the dashboard handily keeps track of the latest deployments of each project and lets you know what version is running on each of the environments, and when that deployment occurred. Finally, do you remember my complaint about having to rename folders so that I could keep track of what build they came from? This is yet another thing that Deployment Manager takes care of for you. Each release is put into its own directory, which takes the name of whatever version number that release has, though these can be customised if necessary. If you’d like to take a look at Deployment Manager for yourself, then you can download it here.

Read the article
Handling HumanTask attachments in Oracle BPM 11g PS4FP+ (II)

- by ccasares

Retrieving uploaded attachments -UCM- As stated in my previous blog entry, Oracle BPM 11g 11.1.1.5.1 (aka PS4FP) introduced a new cool feature whereby you can use Oracle WebCenter Content (previously known as Oracle UCM) as the repository for the human task attached documents. For more information about how to use or enable this feature, have a look here. The attachment scope (either TASK or PROCESS) also applies to UCM-attachments. But even with this other feature, one question might arise when using UCM attachments. How can I get them from within the process? The first answer would be to use the same getTaskAttachmentContents() XPath function already explained in my previous blog entry. In fact, that's the way it should be. But in Oracle BPM 11g 11.1.1.5.1 (PS4FP) and 11.1.1.6.0 (PS5) there's a bug that prevents you to do that. If you invoke such function against a UCM-attachment, you'll get a null content response (bug#13907552). Even if the attachment was correctly uploaded. While this bug gets fixed, next I will show a workaround that lets me to retrieve the UCM-attached documents from within a BPM process. Besides, the sample will show how to interact with WCC API from within a BPM process.Aside note: I suggest you to read my previous blog entry about Human Task attachments where I briefly describe some concepts that are used next, such as the execData/attachment[] structure. Sample Process I will be using the following sample process: A dummy UserTask using "HumanTask2" Human Task, followed by an Embedded Subprocess that will retrieve the attachments payload. In this case, and here's the key point of the sample, we will retrieve such payload using WebCenter Content WebService API (IDC): and once retrieved, we will write each of them back to a file in the server using a File Adapter service: In detail: We will use the same attachmentCollection XSD structure and same BusinessObject definition as in the previous blog entry. However we create a separate variable, named attachmentUCM, based on such BusinessObject. We will still need to keep a copy of the HumanTask output's execData structure. Therefore we need to create a new variable of type TaskExecutionData (different one than the other used for non-UCM attachments): As in the non-UCM attachments flow, in the output tab of the UserTask mapping, we'll keep a copy of the execData structure: Now we get into the embedded subprocess that will retrieve the attachments' payload. First, and using an XSLT transformation, we feed the attachmentUCM variable with the following information: The name of each attachment (from execData/attachment/name element) The WebCenter Content ID of the uploaded attachment. This info is stored in execData/attachment/URI element with the format ecm://<id>. As we just want the numeric <id>, we need to get rid of the protocol prefix ("ecm://"). We do so with some XPath functions as detailed below: with these two functions being invoked, respectively: We, again, set the target payload element with an empty string, to get the <payload></payload> tag created. The complete XSLT transformation is shown below. Remember that we're using the XSLT for-each node to create as many target structures as necessary. Once we have fed the attachmentsUCM structure and so it now contains the name of each of the attachments along with each WCC unique id (dID), it is time to iterate through it and get the payload. Therefore we will use a new embedded subprocess of type MultiInstance, that will iterate over the attachmentsUCM/attachment[] element: In each iteration we will use a Service activity that invokes WCC API through a WebService. Follow these steps to create and configure the Partner Link needed: Login to WCC console with an administrator user (i.e. weblogic). Go to Administration menu and click on "Soap Wsdls" link. We will use the GetFile service to retrieve a file based on its dID. Thus we'll need such service WSDL definition that can be downloaded by clicking the GetFile link. Save the WSDL file in your JDev project folder. In the BPM project's composite view, drag & drop a WebService adapter to create a new External Reference, based on the just added GetFile.wsdl. Name it UCM_GetFile. WCC services are secured through basic HTTP authentication. Therefore we need to enable the just created reference for that: Right-click the reference and click on Configure WS Policies. Under the Security section, click "+" to add the "oracle/wss_username_token_client_policy" policy The last step is to set the credentials for the security policy. For the sample we will use the admin user for WCC (weblogic/welcome1). Open the composite.xml file and select the Source view. Search for the UCM_GetFile entry and add the following highlighted elements into it: <reference name="UCM_GetFile" ui:wsdlLocation="GetFile.wsdl"> <interface.wsdl interface="http://www.stellent.com/GetFile/#wsdl.interface(GetFileSoap)"/> <binding.ws port="http://www.stellent.com/GetFile/#wsdl.endpoint(GetFile/GetFileSoap)" location="GetFile.wsdl" soapVersion="1.1"> <wsp:PolicyReference URI="oracle/wss_username_token_client_policy" orawsp:category="security" orawsp:status="enabled"/> <property name="weblogic.wsee.wsat.transaction.flowOption" type="xs:string" many="false">WSDLDriven</property> <property name="oracle.webservices.auth.username" type="xs:string">weblogic</property> <property name="oracle.webservices.auth.password" type="xs:string">welcome1</property> </binding.ws> </reference> Now the new external reference is ready: Once the reference has just been created, we should be able now to use it from our BPM process. However we find here a problem. The WCC GetFile service operation that we will use, GetFileByID, accepts as input a structure similar to this one, where all element tags are optional: <get:GetFileByID xmlns:get="http://www.stellent.com/GetFile/"> <get:dID>?</get:dID> <get:rendition>?</get:rendition> <get:extraProps> <get:property> <get:name>?</get:name> <get:value>?</get:value> </get:property> </get:extraProps></get:GetFileByID> and we need to fill up just the <get:dID> tag element. Due to some kind of restriction or bug on WCC, the rest of the tag elements must NOT be sent, not even empty (i.e.: <get:rendition></get:rendition> or <get:rendition/>). A sample request that performs the query just by the dID, must be in the following format: <get:GetFileByID xmlns:get="http://www.stellent.com/GetFile/"> <get:dID>12345</get:dID></get:GetFileByID> The issue here is that the simple mapping in BPM does create empty tags being a sample result as follows: <get:GetFileByID xmlns:get="http://www.stellent.com/GetFile/"> <get:dID>12345</get:dID> <get:rendition/> <get:extraProps/> </get:GetFileByID> Although the above structure is perfectly valid, it is not accepted by WCC. Therefore, we need to bypass the problem. The workaround we use (many others are available) is to add a Mediator component between the BPM process and the Service that simply copies the input structure from BPM but getting rid of the empty tags. Follow these steps to configure the Mediator: Drag & drop a new Mediator component into the composite. Uncheck the creation of the SOAP bindings and use the Interface Definition from WSDL template and select the existing GetFile.wsdl Double click in the mediator to edit it. Add a static routing rule to the GetFileByID operation, of type Service and select References/UCM_GetFile/GetFileByID target service: Create the request and reply XSLT mappers: Make sure you map only the dID element in the request: And do an Auto-mapper for the whole response: Finally, we can now add and configure the Service activity in the BPM process. Drag & drop it to the embedded subprocess and select the NormalizedGetFile service and getFileByID operation: Map both the input: ...and the output: Once this embedded subprocess ends, we will have all attachments (name + payload) in the attachmentsUCM variable, which is the main goal of this sample. But in order to test everything runs fine, we finish the sample writing each attachment to a file. To that end we include a final embedded subprocess to concurrently iterate through each attachmentsUCM/attachment[] element: On each iteration we will use a Service activity that invokes a File Adapter write service. In here we have two important parameters to set. First, the payload itself. The file adapter awaits binary data in base64 format (string). We have to map it using XPath (Simple mapping doesn't recognize a String as a base64-binary valid target): Second, we must set the target filename using the Service Properties dialog box: Again, note how we're making use of the loopCounter index variable to get the right element within the embedded subprocess iteration. Final blog entry about attachments will handle how to inject documents to Human Tasks from the BPM process and how to share attachments between different User Tasks. Will come soon. Again, once I finish will all posts on this matter, I will upload the whole sample project to java.net.

Read the article
Seeking on a Heap, and Two Useful DMVs

- by Paul White

So far in this mini-series on seeks and scans, we have seen that a simple ‘seek’ operation can be much more complex than it first appears. A seek can contain one or more seek predicates – each of which can either identify at most one row in a unique index (a singleton lookup) or a range of values (a range scan). When looking at a query plan, we will often need to look at the details of the seek operator in the Properties window to see how many operations it is performing, and what type of operation each one is. As you saw in the first post in this series, the number of hidden seeking operations can have an appreciable impact on performance. Measuring Seeks and Scans I mentioned in my last post that there is no way to tell from a graphical query plan whether you are seeing a singleton lookup or a range scan. You can work it out – if you happen to know that the index is defined as unique and the seek predicate is an equality comparison, but there’s no separate property that says ‘singleton lookup’ or ‘range scan’. This is a shame, and if I had my way, the query plan would show different icons for range scans and singleton lookups – perhaps also indicating whether the operation was one or more of those operations underneath the covers. In light of all that, you might be wondering if there is another way to measure how many seeks of either type are occurring in your system, or for a particular query. As is often the case, the answer is yes – we can use a couple of dynamic management views (DMVs): sys.dm_db_index_usage_stats and sys.dm_db_index_operational_stats. Index Usage Stats The index usage stats DMV contains counts of index operations from the perspective of the Query Executor (QE) – the SQL Server component that is responsible for executing the query plan. It has three columns that are of particular interest to us: user_seeks – the number of times an Index Seek operator appears in an executed plan user_scans – the number of times a Table Scan or Index Scan operator appears in an executed plan user_lookups – the number of times an RID or Key Lookup operator appears in an executed plan An operator is counted once per execution (generating an estimated plan does not affect the totals), so an Index Seek that executes 10,000 times in a single plan execution adds 1 to the count of user seeks. Even less intuitively, an operator is also counted once per execution even if it is not executed at all. I will show you a demonstration of each of these things later in this post. Index Operational Stats The index operational stats DMV contains counts of index and table operations from the perspective of the Storage Engine (SE). It contains a wealth of interesting information, but the two columns of interest to us right now are: range_scan_count – the number of range scans (including unrestricted full scans) on a heap or index structure singleton_lookup_count – the number of singleton lookups in a heap or index structure This DMV counts each SE operation, so 10,000 singleton lookups will add 10,000 to the singleton lookup count column, and a table scan that is executed 5 times will add 5 to the range scan count. The Test Rig To explore the behaviour of seeks and scans in detail, we will need to create a test environment. The scripts presented here are best run on SQL Server 2008 Developer Edition, but the majority of the tests will work just fine on SQL Server 2005. A couple of tests use partitioning, but these will be skipped if you are not running an Enterprise-equivalent SKU. Ok, first up we need a database: USE master; GO IF DB_ID('ScansAndSeeks') IS NOT NULL DROP DATABASE ScansAndSeeks; GO CREATE DATABASE ScansAndSeeks; GO USE ScansAndSeeks; GO ALTER DATABASE ScansAndSeeks SET ALLOW_SNAPSHOT_ISOLATION OFF ; ALTER DATABASE ScansAndSeeks SET AUTO_CLOSE OFF, AUTO_SHRINK OFF, AUTO_CREATE_STATISTICS OFF, AUTO_UPDATE_STATISTICS OFF, PARAMETERIZATION SIMPLE, READ_COMMITTED_SNAPSHOT OFF, RESTRICTED_USER ; Notice that several database options are set in particular ways to ensure we get meaningful and reproducible results from the DMVs. In particular, the options to auto-create and update statistics are disabled. There are also three stored procedures, the first of which creates a test table (which may or may not be partitioned). The table is pretty much the same one we used yesterday: The table has 100 rows, and both the key_col and data columns contain the same values – the integers from 1 to 100 inclusive. The table is a heap, with a non-clustered primary key on key_col, and a non-clustered non-unique index on the data column. The only reason I have used a heap here, rather than a clustered table, is so I can demonstrate a seek on a heap later on. The table has an extra column (not shown because I am too lazy to update the diagram from yesterday) called padding – a CHAR(100) column that just contains 100 spaces in every row. It’s just there to discourage SQL Server from choosing table scan over an index + RID lookup in one of the tests. The first stored procedure is called ResetTest: CREATE PROCEDURE dbo.ResetTest @Partitioned BIT = 'false' AS BEGIN SET NOCOUNT ON ; IF OBJECT_ID(N'dbo.Example', N'U') IS NOT NULL BEGIN DROP TABLE dbo.Example; END ; -- Test table is a heap -- Non-clustered primary key on 'key_col' CREATE TABLE dbo.Example ( key_col INTEGER NOT NULL, data INTEGER NOT NULL, padding CHAR(100) NOT NULL DEFAULT SPACE(100), CONSTRAINT [PK dbo.Example key_col] PRIMARY KEY NONCLUSTERED (key_col) ) ; IF @Partitioned = 'true' BEGIN -- Enterprise, Trial, or Developer -- required for partitioning tests IF SERVERPROPERTY('EngineEdition') = 3 BEGIN EXECUTE (' DROP TABLE dbo.Example ; IF EXISTS ( SELECT 1 FROM sys.partition_schemes WHERE name = N''PS'' ) DROP PARTITION SCHEME PS ; IF EXISTS ( SELECT 1 FROM sys.partition_functions WHERE name = N''PF'' ) DROP PARTITION FUNCTION PF ; CREATE PARTITION FUNCTION PF (INTEGER) AS RANGE RIGHT FOR VALUES (20, 40, 60, 80, 100) ; CREATE PARTITION SCHEME PS AS PARTITION PF ALL TO ([PRIMARY]) ; CREATE TABLE dbo.Example ( key_col INTEGER NOT NULL, data INTEGER NOT NULL, padding CHAR(100) NOT NULL DEFAULT SPACE(100), CONSTRAINT [PK dbo.Example key_col] PRIMARY KEY NONCLUSTERED (key_col) ) ON PS (key_col); '); END ELSE BEGIN RAISERROR('Invalid SKU for partition test', 16, 1); RETURN; END; END ; -- Non-unique non-clustered index on the 'data' column CREATE NONCLUSTERED INDEX [IX dbo.Example data] ON dbo.Example (data) ; -- Add 100 rows INSERT dbo.Example WITH (TABLOCKX) ( key_col, data ) SELECT key_col = V.number, data = V.number FROM master.dbo.spt_values AS V WHERE V.[type] = N'P' AND V.number BETWEEN 1 AND 100 ; END; GO The second stored procedure, ShowStats, displays information from the Index Usage Stats and Index Operational Stats DMVs: CREATE PROCEDURE dbo.ShowStats @Partitioned BIT = 'false' AS BEGIN -- Index Usage Stats DMV (QE) SELECT index_name = ISNULL(I.name, I.type_desc), scans = IUS.user_scans, seeks = IUS.user_seeks, lookups = IUS.user_lookups FROM sys.dm_db_index_usage_stats AS IUS JOIN sys.indexes AS I ON I.object_id = IUS.object_id AND I.index_id = IUS.index_id WHERE IUS.database_id = DB_ID(N'ScansAndSeeks') AND IUS.object_id = OBJECT_ID(N'dbo.Example', N'U') ORDER BY I.index_id ; -- Index Operational Stats DMV (SE) IF @Partitioned = 'true' SELECT index_name = ISNULL(I.name, I.type_desc), partitions = COUNT(IOS.partition_number), range_scans = SUM(IOS.range_scan_count), single_lookups = SUM(IOS.singleton_lookup_count) FROM sys.dm_db_index_operational_stats ( DB_ID(N'ScansAndSeeks'), OBJECT_ID(N'dbo.Example', N'U'), NULL, NULL ) AS IOS JOIN sys.indexes AS I ON I.object_id = IOS.object_id AND I.index_id = IOS.index_id GROUP BY I.index_id, -- Key I.name, I.type_desc ORDER BY I.index_id; ELSE SELECT index_name = ISNULL(I.name, I.type_desc), range_scans = SUM(IOS.range_scan_count), single_lookups = SUM(IOS.singleton_lookup_count) FROM sys.dm_db_index_operational_stats ( DB_ID(N'ScansAndSeeks'), OBJECT_ID(N'dbo.Example', N'U'), NULL, NULL ) AS IOS JOIN sys.indexes AS I ON I.object_id = IOS.object_id AND I.index_id = IOS.index_id GROUP BY I.index_id, -- Key I.name, I.type_desc ORDER BY I.index_id; END; The final stored procedure, RunTest, executes a query written against the example table: CREATE PROCEDURE dbo.RunTest @SQL VARCHAR(8000), @Partitioned BIT = 'false' AS BEGIN -- No execution plan yet SET STATISTICS XML OFF ; -- Reset the test environment EXECUTE dbo.ResetTest @Partitioned ; -- Previous call will throw an error if a partitioned -- test was requested, but SKU does not support it IF @@ERROR = 0 BEGIN -- IO statistics and plan on SET STATISTICS XML, IO ON ; -- Test statement EXECUTE (@SQL) ; -- Plan and IO statistics off SET STATISTICS XML, IO OFF ; EXECUTE dbo.ShowStats @Partitioned; END; END; The Tests The first test is a simple scan of the heap table: EXECUTE dbo.RunTest @SQL = 'SELECT * FROM Example'; The top result set comes from the Index Usage Stats DMV, so it is the Query Executor’s (QE) view. The lower result is from Index Operational Stats, which shows statistics derived from the actions taken by the Storage Engine (SE). We see that QE performed 1 scan operation on the heap, and SE performed a single range scan. Let’s try a single-value equality seek on a unique index next: EXECUTE dbo.RunTest @SQL = 'SELECT key_col FROM Example WHERE key_col = 32'; This time we see a single seek on the non-clustered primary key from QE, and one singleton lookup on the same index by the SE. Now for a single-value seek on the non-unique non-clustered index: EXECUTE dbo.RunTest @SQL = 'SELECT data FROM Example WHERE data = 32'; QE shows a single seek on the non-clustered non-unique index, but SE shows a single range scan on that index – not the singleton lookup we saw in the previous test. That makes sense because we know that only a single-value seek into a unique index is a singleton seek. A single-value seek into a non-unique index might retrieve any number of rows, if you think about it. The next query is equivalent to the IN list example seen in the first post in this series, but it is written using OR (just for variety, you understand): EXECUTE dbo.RunTest @SQL = 'SELECT data FROM Example WHERE data = 32 OR data = 33'; The plan looks the same, and there’s no difference in the stats recorded by QE, but the SE shows two range scans. Again, these are range scans because we are looking for two values in the data column, which is covered by a non-unique index. I’ve added a snippet from the Properties window to show that the query plan does show two seek predicates, not just one. Now let’s rewrite the query using BETWEEN: EXECUTE dbo.RunTest @SQL = 'SELECT data FROM Example WHERE data BETWEEN 32 AND 33'; Notice the seek operator only has one predicate now – it’s just a single range scan from 32 to 33 in the index – as the SE output shows. For the next test, we will look up four values in the key_col column: EXECUTE dbo.RunTest @SQL = 'SELECT key_col FROM Example WHERE key_col IN (2,4,6,8)'; Just a single seek on the PK from the Query Executor, but four singleton lookups reported by the Storage Engine – and four seek predicates in the Properties window. On to a more complex example: EXECUTE dbo.RunTest @SQL = 'SELECT * FROM Example WITH (INDEX([PK dbo.Example key_col])) WHERE key_col BETWEEN 1 AND 8'; This time we are forcing use of the non-clustered primary key to return eight rows. The index is not covering for this query, so the query plan includes an RID lookup into the heap to fetch the data and padding columns. The QE reports a seek on the PK and a lookup on the heap. The SE reports a single range scan on the PK (to find key_col values between 1 and 8), and eight singleton lookups on the heap. Remember that a bookmark lookup (RID or Key) is a seek to a single value in a ‘unique index’ – it finds a row in the heap or cluster from a unique RID or clustering key – so that’s why lookups are always singleton lookups, not range scans. Our next example shows what happens when a query plan operator is not executed at all: EXECUTE dbo.RunTest @SQL = 'SELECT key_col FROM Example WHERE key_col = 8 AND @@TRANCOUNT < 0'; The Filter has a start-up predicate which is always false (if your @@TRANCOUNT is less than zero, call CSS immediately). The index seek is never executed, but QE still records a single seek against the PK because the operator appears once in an executed plan. The SE output shows no activity at all. This next example is 2008 and above only, I’m afraid: EXECUTE dbo.RunTest @SQL = 'SELECT * FROM Example WHERE key_col BETWEEN 1 AND 30', @Partitioned = 'true'; This is the first example to use a partitioned table. QE reports a single seek on the heap (yes – a seek on a heap), and the SE reports two range scans on the heap. SQL Server knows (from the partitioning definition) that it only needs to look at partitions 1 and 2 to find all the rows where key_col is between 1 and 30 – the engine seeks to find the two partitions, and performs a range scan seek on each partition. The final example for today is another seek on a heap – try to work out the output of the query before running it! EXECUTE dbo.RunTest @SQL = 'SELECT TOP (2) WITH TIES * FROM Example WHERE key_col BETWEEN 1 AND 50 ORDER BY $PARTITION.PF(key_col) DESC', @Partitioned = 'true'; Notice the lack of an explicit Sort operator in the query plan to enforce the ORDER BY clause, and the backward range scan. © 2011 Paul White email: [email protected] twitter: @SQL_Kiwi

Read the article
CodePlex Daily Summary for Sunday, June 24, 2012

CodePlex Daily Summary for Sunday, June 24, 2012Popular ReleasesXDA ROM HUB: XDA ROM HUB v0.9: Kernel listing added -- Thanks to iONEx Added scripts installer button. Added "Nandroid On The Go" -- Perform a Nandroid backup without a PC! Added official Android app!ExtAspNet: ExtAspNet v3.1.8: +2012-06-24 v3.1.8 +????Grid???????（???????ExpandUnusedSpace????????）（??）。 -????MinColumnWidth（??????）。 -????AutoExpandColumn，???????????????（ColumnID）（?????ForceFitFirstTime??ForceFitAllTime，??????）。 -????AutoExpandColumnMax?AutoExpandColumnMin。 -????ForceFitFirstTime，????????????，??????????（????????????）。 -????ForceFitAllTime，????????????，??????????（??????????????????）。 -????VerticalScrollWidth，????????（??????????，0?????????????）。 -????grid/grid_forcefit.aspx。 -???????????En...AJAX Control Toolkit: June 2012 Release: AJAX Control Toolkit Release Notes - June 2012 Release Version 60623June 2012 release of the AJAX Control Toolkit. AJAX Control Toolkit .NET 4 – AJAX Control Toolkit for .NET 4 and sample site (Recommended). AJAX Control Toolkit .NET 3.5 – AJAX Control Toolkit for .NET 3.5 and sample site (Recommended). Notes: - The current version of the AJAX Control Toolkit is not compatible with ASP.NET 2.0. The latest version that is compatible with ASP.NET 2.0 can be found here: 11121. - Pages using ...WPF Application Framework (WAF): WPF Application Framework (WAF) 2.5.0.5: Version: 2.5.0.5 (Milestone 5): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Changelog Legend: [B] Breaking change; [O] Marked member as obsolete WAF: Add IsInDesignMode property to the WafConfiguration class. WAF: Introduce the IModuleController interface. WAF: Add ...Windows 8 Metro RSS Reader: Metro RSS Reader.v7: Updated for Windows 8 Release Preview Changed background and foreground colors Used VariableSizeGrid layout to wrap blog posts with images Sort items with Images first, text-only last Enabled Caching to improve navigation between frames This is the release package of the source code The package includes x64, x86 releases. Installation Instructions http://dl.dropbox.com/u/23484650/RssReaderMetro/Screenshots/AppPackage.JPG Select x64 or x86 folder from the package http://dl.dropbox.com...Confuser: Confuser 1.9: Change log: * Stable output (i.e. given the same seed & input assemblies, you'll get the same output assemblies) + Generate debug symbols, now it is possible to debug the output under a debugger! (Of course without enabling anti debug) + Generating obfuscation database, most of the obfuscation data in stored in it. + Two tools utilizing the obfuscation database (Database viewer & Stack trace decoder) * Change the protection scheme -----Please read Bug Report before you report a bug-----...XDesigner.Development: First release: First releaseBlackJumboDog: Ver5.6.5: 2012.06.22 Ver5.6.5 　(1) FTP??????? EPSV ??　EPRT　???????DotNetNuke® Form and List: 06.00.01: DotNetNuke Form and List 06.00.01 Changes in 06.00.01 Icons are shown in module action buttons (workaraound to core issue with IconAPI) Fix to Token2XSL Editor, changing List type raised exception MakeTumbnail and ShowXml handlers had been missing in install package Updated help texts for better understanding of filter statement, token support in email subject and css style Major changes for fnL 6.0: DNN 6 Form Patterns including modal PopUps and Tabs http://www.dotnetnuke.com/Po...MVVM Light Toolkit: V4RTM (binaries only) including Windows 8 RP: This package contains all the latest DLLs for MVVM Light V4 RTM. It includes the DLLs for Windows 8 Release Preview. An updated Nuget package is also available at http://nuget.org/packages/MvvmLightLibs An installer with binaries, snippets and templates will follow ASAP.Weapsy - ASP.NET MVC CMS: 1.0.0: - Some changes to Layout and CSS - Changed version number to 1.0.0.0 - Solved Cache and Session items handler error in IIS 7 - Created the Modules, Plugins and Widgets Areas - Replaced CKEditor with TinyMCE - Created the System Info page - Minor changesAcDown????? - AcDown Downloader Framework: AcDown????? v3.11.7: ?? ●AcDown??????????、??、??????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown??????????????????，????????????????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ...NShader - HLSL - GLSL - CG - Shader Syntax Highlighter AddIn for Visual Studio: NShader 1.3 - VS2010 + VS2012: This is a small maintenance release to support new VS2012 as well as VS2010. This release is also fixing the issue The "Comment Selection" include the first line after the selection If the new NShader version doesn't highlight your shader, you can try to: Remove the registry entry: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\FontAndColors\Cache Remove all lines using "fx" or "hlsl" in file C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\CommonExtensions\Micr...3D Landmark Recognition: Landmark3D Dataset V1.0 (7z 1 of 3): Landmark3D Dataset Version 1.0Xenta Framework - extensible enterprise n-tier application framework: Xenta Framework 1.8.0: System Requirements OS Windows 7 Windows Vista Windows Server 2008 Windows Server 2008 R2 Web Server Internet Information Service 7.0 or above .NET Framework .NET Framework 4.0 WCF Activation feature HTTP Activation Non-HTTP Activation for net.pipe/net.tcp WCF bindings ASP.NET MVC ASP.NET MVC 3.0 Database Microsoft SQL Server 2005 Microsoft SQL Server 2008 Microsoft SQL Server 2008 R2 Additional Deployment Configuration Started Windows Process Activation service Start...MFCMAPI: June 2012 Release: Build: 15.0.0.1034 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeMonoGame - Write Once, Play Everywhere: MonoGame 2.5.1: Release Notes The MonoGame team are pleased to announce that MonoGame v2.5.1 has been released. This release contains important bug fixes and minor updates. Recent additions include project templates for iOS and MacOS. The MonoDevelop.MonoGame AddIn also works on Linux. We have removed the dependency on the thirdparty GamePad library to allow MonoGame to be included in the debian/ubuntu repositories. There have been a major bug fix to ensure textures are disposed of correctly as well as some ...Sense/Net CMS - Enterprise Content Management: SenseNet 6.1 Community Edition: Sense/Net 6.1 Community EditionMain new features:major performance optimizations Office 2010 and Basic authentication support new main page and enhanced demo experience The new 6.1 release is a true milestone in the history of Sense/Net ECMS. In the past few months we mostly concentrated on performance optimizations and implemented low-level features for improved scalability and robustness. We have tested the system in high availability setup under high load by conducting a benchmark duri...????: ????2.0.2: 1、???????????。 2、DJ???????10?，?????????10?。 3、??.NET 4.5(Windows 8)????????????。 4、???????????。 5、??????????????。 6、???Windows 8????。 7、?????2.0.1???????????????。 8、??DJ?????????。Azure Storage Explorer: Azure Storage Explorer 5 Preview 1 (6.17.2012): Azure Storage Explorer verison 5 is in development, and Preview 1 provides an early look at the new user interface and some of the new features. Here's what's new in v5 Preview 1: New UI, similar to the new Windows Azure HTML5 portal Support for configuring and viewing storage account logging Support for configuring and viewing storage account monitoring Uses the Windows Azure 1.7 SDK libraries Bug fixesNew ProjectsAdvanced Wars By Snowstar: ????.....??join!Bible Mobile: The purpose of this project is to create a C#, ASP.NET, Microsoft SQL 2008 server Bible for mobile devices.Bitresolve: A simple CRUD based DB interaction - POC.blueChart: yet another android chart widgetsBulletProof In-App Youtube Video Playback for WP7 using SMF : POC: Want In-App Youtube video playback in your WP7 application? Want a bulletproof parsing solution? Check out this POC for In-App playback and peace of mind!CodeGenerate: The Project can auto generate C# code. Include BLL Layer、Domain Layer、IDAL Layer、DAL Layer. Support SqlServer And Oracle This is a alpha program,but which can contactus_pumpouts: contact us handler for pumpouts unlimitedCSV Serializer: The CsvSerializer provides functionality to define objects which can be (de)serialized to/from a CSV file. Parsing is per RFC4180.From the Farm to the Sandbox for SharePoint 2010: From the Farm to the Sandbox project focuses on unraveling the mysteries when converting a SharePoint 2010 farm solution to a sandbox with source and demos.Furtivue (providing a furtive view over your messages): Could be used for sending confidential/secret information (such as passwords), or any other data you don't want the receiver to keep permanently in their e-mailGPS Tracker System: GPS summary IIS Express Manager: IIS Express Manager (IISEM) will liberate you from visual studio/web matrix just to open your precious IIS Express hosted applications.Imagicus : A Simple Picture Gallery: This is a simple image viewer, which permits encrypted images. One cannot tell whether there are any hidden images, unless the special key is obtained. (Imaginem Porticus => Imagicus)Jason: Jason is an infrastructure framework to easly put the "Command" part of CQRS on top of WCFKartRanking - Sistema de controle de pontuação web de campeonato: Projeto com objetivo de desenvolver um sistema de controle de pontuação de um ou vários campeonato de kart online. KryschenApp: A Playstation Mobile App for the PS Vita. This app is for showing the german kryschen eMag on the ps vita.Ludos: Ludos is a collection several games written in java. It is a conglomeration of a variety of types of games, mostly non-graphic intensive.MSHelpMe: MS help me application in WP7MyTesting: trailNRuby: NRuby is a fork of IronRuby with the goal of kicking the project alive again and make Ruby on .NET a viable alternative for the masses.RandomRat: RandomRat is a program for generating random sets that meet specific criteriaResistance - Defender of Earth: sumShopping-Mail plugin for nopCommerce: This nopCommerce plugin integrates Shopping-Mail solution to share customers between merchant.Simple CMS: CMSes are often really a tease to integrate, and often offer more than needed. SimpleCMS is just simple.TestProject: auauTrading Terminal Suite: The Main purpose of project is to make programmatical interfaces for trading. The project uses Stock# framework and extends it in different ways. ünye fevzi çakmak: ilk denemeVS2012 ???????: VS2012 ???????

Read the article
CodePlex Daily Summary for Wednesday, November 30, 2011

CodePlex Daily Summary for Wednesday, November 30, 2011Popular ReleasesLINQ to Twitter: LINQ to Twitter Beta v2.0.22: New support for Windows Phone 7.1, 100% Twitter API coverage.Anno 2070 Assistant: Anno 2070 Assistant v1.1: Anno 2070 Assistant v1.1 Released! Features Included: Building Layouts for Ecos, Tycoons & Techs Production Chains for Ecos, Tycoons & Techs Supply Calculator New Features: The new supply calculator will tell you how many of each production chain you need to sustain the current population. Simply plot in your total inhabitants of each type and calculate! Coming in v2.0: Population Calculator Port from hard coded data to XML data Calculate by Residence Feature and some more secret ...Rawr: Rawr 4.3.0: This is the Downloadable WPF version of Rawr!For web-based version see http://elitistjerks.com/rawr.php You can find the version notes at: http://rawr.codeplex.com/wikipage?title=VersionNotes Rawr AddonWe now have a Rawr Official Addon for in-game exporting and importing of character data hosted on Curse. The Addon does not perform calculations like Rawr, it simply shows your exported Rawr data in wow tooltips and lets you export your character to Rawr (including bag and bank items) like Char...BugNET Issue Tracker: BugNET 0.9.131: This is a bug fix release for 0.9 that fixes a number of pressing issues. FixesBGN-1989 - User verification is not working on the latest release BGN-1988 - Send password notification does not include the actual password and throws an error BGN-1987 - Issues revisions stop being updated BGN-1985 - Search by issue id no longer works Fixed issue when user is not authenticated and clicks on the Vote link the user is redirected to page not found (wrong location for the Login.aspx page) N...QuickStart Engine (3D Game Engine for XNA): QuickStart Engine v0.23: Main FeaturesXNA 4.0 compatible Clean engine architecture Makes it easy to make your own game using the engine. Messaging system allows you to communicate between systems and other entities without coupling your code in ways you wouldn't want to. Entity/Component system allows you to make your own objects and customize them very easily. Terrain engine Quad-tree culling Multi-texture splatting Multi-texture normal mapping Smoothing and scaling Physics engine integration Uses Ji...Windows Azure Toolkit for Windows Phone: Windows Azure Toolkit for Windows Phone v1.3.2: Upgraded Windows Azure projects to Windows Azure SDK for .NET – November 2011. Updated BabelCam, CRUDSqlAzure, WPCloud.ACS, and WPCloud.SQL.ACS samples to include default ACS configuration to allow developers running the samples without owning an ACS namespace.VideoLan DotNet for WinForm, WPF & Silverlight 5: VideoLan DotNet for WinForm, WPF, SL5 - 2011.11.29: The new version add and correct many features : Add Medias list property to VlcControl Correction to implement Medias list property Add PlaybackMode property to VlcControl (Loop/Repeat/Default) Remove "--play-and-pause" option in WPF sample Add MediaList Interops Add MediaListPlayer Interops Correction on Interops (error) Add MediaSubItemAdded event on MediaBaseMFCMAPI: November 2011 Release: Build: 15.0.0.1029 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeWCF Community Site: WCF Web API Preview 6: Welcome to the sixth preview release of WCF Web API on Codeplex! Install WCF Web API Preview 6 using NuGet New Features/EnhancementsURL form encoding - Http request bodies sent as application/x-www-form-urlencoded can now deserialize into objects and participate in content negotiation. Custom OData entity keys - The ODataFormatter now supports custom conventions for determining which properties identify an entity key. [ServiceContract] is no longer required on the Web API class definiti...Devpad: 4.11: Whats new for Devpad 4.11: New Import Archive Improved Save Dialog Improved Replace Dialog Improved Go To Dialog Minor Bug Fix's, improvements and speed upsHome Access Plus+: v7.7: v7.7.1128.2200Added: ShowTo Option on Resources Added: Basic Authentication Logon Method Added: Button on the Live Tracker page to clear logons in the database but not do a remote logoff Updated: jquery from v1.6.2 to v1.7.1 Fixed: Another attempt at fixing the SIMS import in the booking system Fixed: JSON Issues with the Setup Added: More DEBUG Events to the Event Log (note DEBUG not RELEASE) Added: Support for Week A Week B instead of Week 1 and Week 2 Updated: The My Files ...CommonLibrary.NET: CommonLibrary.NET 0.9.8 - Alpha: A collection of very reusable code and components in C# 4.0 ranging from ActiveRecord, Csv, Command Line Parsing, Configuration, Holiday Calendars, Logging, Authentication, and much more. Samples in <root>\src\Lib\CommonLibrary.NET\Samples CommonLibrary.NET 0.9.8 AlphaNew Dynamic Scripting Language : workitem : 7493 Fixes 1622 6803Widget Suite for DotNetNuke: 01.04.00: The following features/enhancements are associated with this release: Bug: Removed the empty box/white space created by some widgets New Widget: FlexSlider New Widget: Google+ Button New Widget: Klout Badge Sample Widget Script FileFxCop Integrator for Visual Studio 2010: FxCop Integrator 2.0.0 RC: Replaced the MSBuild Tasks installer to fix the bug of the targets file. FxCop Integrator is not affected by this bug. (Nov 28 2011) New FeatureSupported calculating code metrics with Code Metrics PowerTool. (Work Item #6568: 6568). Provided MSBuild tasks. #7454: 7454 Supported to filter out auto-generated code from code analysis result. #7485: 7485 Supported exporting report of code analysis result. Supported multi-project analysis. Supported file level analysis. Added the featu...Terminals: Version 2 - Beta 4 Release: Beta 4 Refresh Build Dont forget to backup your config files BEFORE upgrading! As usual, please take time to use and abuse this release. We left logging in place, and this is a debug build so be sure to submit your logs on each bug reported, and please do report all bugs! Updated the About form to include the date and time of the build. Useful for CI builds to ensure we have the correct version "Favourites" and "History" save their expanded states after app restarts Code cleanup, secu...MiniTwitter: 1.76: MiniTwitter 1.76 ???? ?? ?????????? User Streams ???????????? User Streams ???????????、??????????????? REST ?????????? ?????????????????????????????? ??????????????????????????????Media Companion: MC 3.424b Weekly: Ensure .NET 4.0 Full Framework is installed. (Available from http://www.microsoft.com/download/en/details.aspx?id=17718) Ensure the NFO ID fix is applied when transitioning from versions prior to 3.416b. (Details here) Movie Show Resolutions... Resolved issue when reverting multiselection of movies to "-none-" Added movie rename support for subtitle files '.srt' & '.sub' Finalised code for '-1' fix - radiobutton to choose either filename or title Fixed issue with Movie Batch Wizard Fanart - ...Advanced Windows Phone Enginering Tool: WPE Downloads: This version of WPE gives you basic updating, restoring, and, erasing for your Windows Phone device.Microsoft Ajax Minifier: Microsoft Ajax Minifier 4.37: Fix for issue #16936 - CSS strings containing ASP.NET replacement blocks that contain the same delimiter character(s) as the CSS string cause the CSS parser to barf. Need to use the -aspnet:1 flag to treat the ASP.NET blocks as single entities. Added support for CSS3 @keyframes syntax. Added NuGet package support to the DLL project. Expand the -line switch to also optionally specify the multiline/single line mode, and the spaces-per-tab for multiline mode. Tweak the -pretty switch to be more ...Get simpler, simpler, and simpler: UI 0.1 Binary: Inklude: you can use it with lib, header and dlls. Uzing: you can use it by adding it to your project.New ProjectsArchiveBytes: ArchiveBytes is an archiving solution with rolling archive capabilities. Arduino Controller: Arduino Controller is a GUI to control and arduino wirelessly using: - XBEES - WIFI - Bluetooth All that is required is: - Arduino Controller - Your wireless technology - And an Arduino If you would like info I'm trying to put together sets that include: - Software - Arduino - And a wireless technology (your choice)Artesis - Studiegids MVC: Artesis StudiegidsAzureHost: AzureHost is a synchronization framework that makes it easy to deploy web application files to Windows Azure and keep them synchronized between Web Roles and Blob Storage. AzureHost is a fork of the Windows Azure Accelerator for Umbraco made more simple and generic.Codes Of My ACE Study: Activity-based Center ExpansionCoreGallery.NET: An extensible .NET-based photo gallery. Project has been inactive for some time and currently in very early planning/prototyping stages. Help is definitely welcome!Custom SharePoint Designer Activities for SharePoint 2010: This project adds to the power of SharePoint Designer workflows by adding additional activities that previously were not available including sending emails with attachments, custom from addresses, and much more. Created with visual studio 2010 for SharePoint 2010.Declarative command line parser: A powerful, declarative command-line parsing system in a single .cs file. This file is available as a nuget package (package id: declcmdparser) and can be easily included or excluded in your project.DevCow: This is a location for all of the community projects that help support DevCow.comejg: ejgFibo.Authority: a authority system based on nhibernate,autofac,asp.net MVC,jquery easyui and so on.Georgia Southern House Control: This is a semester project for a group of students at Georgia Southern university.JSAnalyse - Javascript Analyser and Dependency Checker: JSAnalyse - Javascript Analyser and Dependency CheckerLogger - logging for your .NET project using file, mail, debug output: A light weight yet competent logger for .NET with configurable output modules, such as log file, e-mail and debug log. Easy to add your own output module if needed.MetaEdit+ extension for Visual Studio: Visual Studio extension for integrating MetaEdit+ and Visual Studio. This extension allows you to browse MetaEdit+ models and use the main MetaEdit+ functions from Visual Studio. It can also automatically import into Visual Studio the source code generated from MetaEdit+. MonopolyPatrones: Proyecto de patrones de software universidad Javeriana ColombiaMulti-threaded simple Reversi game: XNA Reversi game supporting multi-core processors. NDuplicate: Finds duplicate code (methods) across a C# solution.Netduino-compatible embedded webserver: Embedded Webserver is a small footprint, multi-platform webserver implementation exposing IIS-like API to web enable your hobby project in four easy steps.Orchard UserReviewedItems: An Orchard module extension of the Contrib.Reviews module. Includes a orchard content part for showing the reviews that are written by the user of the current context.PivotViewer Extensions: PivotViewer Extensions is a collection of add-ons to the Silverlight 5 PivotViewer. PowerShell TFS Build Server CmdLets: A set of CmdLets for managing a Team Foundation Server (TFS) Build server through PowerShell. SABON: Simple Access Business Object Network. This is a JavaScript Library that provides quickest way on accessing HTML elements, and DOM this includes Object/Class Creator, Table Effects, Message Box, Object Pop-up, Email Notification, and caseed: Seed creates complete ASP.NET website from object oriented business model definitions. Programers serves programs? No... Programs serves programers, Yep! "Firstly, I think I will build a system with 90% solid functions, and 10% dynamiic functions, the dynamic functions is the flower blossoming from top of it."Sharpshooter: ????OOP??????，??????。Silverlight Front end calling WCF Service in Azure Web Role: I recently written a sample which has Windows Azure Web Role with Silverlight front end, calling to WCF service which is hosted in the same Windows Azure Web Role. SPWikiDialogFix: For SharePoint 2010: Fix to prevent users from receiving ‘The Ribbon Tab with id: "Ribbon.Read" has not been made available for this page or does not exist. Use Ribbon.MakeTabAvailable()’ when viewing wiki pages in dialog mode. For explanation and details, read the blog post at http://blog.furuknap.net/solving-the-ribbon-tab-with-id-ribbon-read-has-not-been-made-available-for-this-page-or-does-not-exist-use-ribbon-maketabavailable Written in C#, because you deserve it.Trinity Christian School Lunches: This is a semester project for a group of students at Georgia Southern University creating a software packages that allows a school to keep track of the lunch orders of students.wp7project: We`re just training...Zavida: C# learning curve.??: fff

Read the article
java: how to compress data into a String and uncompress data from the String

- by Guillaume

I want to put some compressed data into a remote repository. To put data on this repository I can only use a method that take the name of the resource and its content as a String. (like data.txt + "hello world"). The repository is moking a filesystem but is not, so I can not use File directly. I want to be able to do the following: client send to server a file 'data.txt' server compress 'data.txt' into data.zip server send to repository content of data.zip repository store data.zip client download from repository data.zip and his able to open it with its favorite zip tool I have tried a lots of compressing example found on the web but each time a send the data to the repository, my resulting zip file is corrupted. Here is a sample class, using the zip*stream and that emulate the repository showcasing my problem. The created zip file is working, but after its 'serialization' it's get corrupted. (the sample class use jakarta commons.io ) Many thanks for your help. package zip; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import java.util.zip.ZipOutputStream; import org.apache.commons.io.FileUtils; /** * Date: May 19, 2010 - 6:13:07 PM * * @author Guillaume AME. */ public class ZipMe { public static void addOrUpdate(File zipFile, File ... files) throws IOException { File tempFile = File.createTempFile(zipFile.getName(), null); // delete it, otherwise you cannot rename your existing zip to it. tempFile.delete(); boolean renameOk = zipFile.renameTo(tempFile); if (!renameOk) { throw new RuntimeException("could not rename the file " + zipFile.getAbsolutePath() + " to " + tempFile.getAbsolutePath()); } byte[] buf = new byte[1024]; ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile)); ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile)); ZipEntry entry = zin.getNextEntry(); while (entry != null) { String name = entry.getName(); boolean notInFiles = true; for (File f : files) { if (f.getName().equals(name)) { notInFiles = false; break; } } if (notInFiles) { // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(name)); // Transfer bytes from the ZIP file to the output file int len; while ((len = zin.read(buf)) > 0) { out.write(buf, 0, len); } } entry = zin.getNextEntry(); } // Close the streams zin.close(); // Compress the files if (files != null) { for (File file : files) { InputStream in = new FileInputStream(file); // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(file.getName())); // Transfer bytes from the file to the ZIP file int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } // Complete the entry out.closeEntry(); in.close(); } // Complete the ZIP file } tempFile.delete(); out.close(); } public static void main(String[] args) throws IOException { final String zipArchivePath = "c:/temp/archive.zip"; final String tempFilePath = "c:/temp/data.txt"; final String resultZipFile = "c:/temp/resultingArchive.zip"; File zipArchive = new File(zipArchivePath); FileUtils.touch(zipArchive); File tempFile = new File(tempFilePath); FileUtils.writeStringToFile(tempFile, "hello world"); addOrUpdate(zipArchive, tempFile); //archive.zip exists and contains a compressed data.txt that can be read using winrar //now simulate writing of the zip into a in memory cache String archiveText = FileUtils.readFileToString(zipArchive); FileUtils.writeStringToFile(new File(resultZipFile), archiveText); //resultingArchive.zip exists, contains a compressed data.txt, but it can not //be read using winrar: CRC failed in data.txt. The file is corrupt } }

Read the article
Simple GET operation with JSON data in ADF Mobile

- by PadmajaBhat

Usecase: This sample uses a RESTful service which contains a GET method that fetches employee details for an employee with given employee ID along with other methods. The data is fetched in JSON format. This RESTful service is then invoked via ADF Mobile and the JSON data thus obtained is parsed and rendered in mobile in a table. Prerequisite: Download JDev build JDEVADF_11.1.2.4.0_GENERIC_130421.1600.6436.1 or higher with mobile support. Steps: Run EmployeeService.java in JSONService.zip. This is a simple service with a method, getEmpById(id) that takes employee ID as parameter and produces employee details in JSON format. Copy the target URL generated on running this service. The target URL will be as shown below: http://127.0.0.1:7101/JSONService-Project1-context-root/jersey/project1 Now, let us invoke this service in our mobile application. For this, create an ADF Mobile application. Name the application JSON_SearchByEmpID and finish the wizard. Now, let us create a connection to our service. To do this, we create a URL Connection. Invoke new gallery wizard on ApplicationController project. Select URL Connection option. In the Create URL Connection window, enter connection name as ‘conn’. For URL endpoint, supply the URL you copied earlier on running the service. Remember to use your system IP instead of localhost. Test the connection and click OK. At this point, a connection to the REST service has been created. Since JSON data is not supported directly in WSDC wizard, we need to invoke the operation through Java code using RestServiceAdapter. For this, in the ApplicationController project, create a Java class called ‘EmployeeDC’. We will be creating DC from this class. Add the following code to the newly created class to invoke the getEmpById method. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 public Employee fetchEmpDetails(){ RestServiceAdapter restServiceAdapter = Model.createRestServiceAdapter(); restServiceAdapter.clearRequestProperties(); restServiceAdapter.setConnectionName("conn"); //URL connection created with this name restServiceAdapter.setRequestType(RestServiceAdapter.REQUEST_TYPE_GET); restServiceAdapter.addRequestProperty("Content-Type", "application/json"); restServiceAdapter.addRequestProperty("Accept", "application/json; charset=UTF-8"); restServiceAdapter.setRetryLimit(0); restServiceAdapter.setRequestURI("/getById/"+inputEmpID); String response = ""; JSONBeanSerializationHelper jsonHelper = new JSONBeanSerializationHelper(); try { response = restServiceAdapter.send(""); //Invoke the GET operation System.out.println("Response received!"); Employee responseObject = (Employee) jsonHelper.fromJSON(Employee.class, response); return responseObject; } catch (Exception e) { } return null; } Here, in lines 2 to 9, we create the RestServiceAdapter and set various properties required to invoke the web service. At line 4, we are pointing to the connection ‘conn’ created previously. Since we want to invoke getEmpById method of the service, which is defined by the URL http://IP:7101/REST_Sanity_JSON-Project1-context-root/resources/project1/getById/{id} we are updating the request URI to point to this URI at line 9. inputEmpID is a variable that will hold the value input by the user for employee ID. This we will be creating in a while. As the method we are invoking is a GET operation and consumes json data, these properties are being set in lines 5 through 7. Finally, we are sending the request in line 13. In line 15, we use jsonHelper.fromJSON to convert received JSON data to a Java object. The required Java objects' structure is defined in class Employee.java whose structure is provided later. Since the response from our service is a simple response consisting of attributes like employee Id, name, design etc, we will just return this parsed response (line 16) and use it to create DC. As mentioned previously, we would like the user to input the employee ID for which he/she wants to perform search. So, in the same class, define a variable inputEmpID which will hold the value input by the user. Generate accessors for this variable. Lastly, we need to create Employee class. Employee class will define how we want to structure the JSON object received from the service. To design the Employee class, run the services’ method in the browser or via analyzer using path parameter as 1. This will give you the output JSON structure. Ours is a simple service that returns a JSONObject with a set of data. Hence, Employee class will just contain this set of data defined with the proper data types. Create Employee.java in the same project as EmployeeDC.java and write the below code: package application; import oracle.adfmf.java.beans.PropertyChangeListener; import oracle.adfmf.java.beans.PropertyChangeSupport; public class Employee { private String dept; private String desig; private int id; private String name; private int salary; private PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this); public void setDept(String dept) { String oldDept = this.dept; this.dept = dept; propertyChangeSupport.firePropertyChange("dept", oldDept, dept); } public String getDept() { return dept; } public void setDesig(String desig) { String oldDesig = this.desig; this.desig = desig; propertyChangeSupport.firePropertyChange("desig", oldDesig, desig); } public String getDesig() { return desig; } public void setId(int id) { int oldId = this.id; this.id = id; propertyChangeSupport.firePropertyChange("id", oldId, id); } public int getId() { return id; } public void setName(String name) { String oldName = this.name; this.name = name; propertyChangeSupport.firePropertyChange("name", oldName, name); } public String getName() { return name; } public void setSalary(int salary) { int oldSalary = this.salary; this.salary = salary; propertyChangeSupport.firePropertyChange("salary", oldSalary, salary); } public int getSalary() { return salary; } public void addPropertyChangeListener(PropertyChangeListener l) { propertyChangeSupport.addPropertyChangeListener(l); } public void removePropertyChangeListener(PropertyChangeListener l) { propertyChangeSupport.removePropertyChangeListener(l); } } Now, let us create a DC out of EmployeeDC.java. DC as shown below is created. Now, you can design the mobile page as usual and invoke the operation of the service. To design the page, go to ViewController project and locate adfmf-feature.xml. Create a new feature called ‘SearchFeature’ by clicking the plus icon. Go the content tab and add an amx page. Call it SearchPage.amx. Call it SearchPage.amx. Remove primary and secondary buttons as we don’t need them and rename the header. Drag and drop inputEmpID from the DC palette onto Panel Page in the structure pane as input text with label. Next, drop fetchEmpDetails method as an ADF button. For a change, let us display the output in a table component instead of the usual form. However, you will notice that if you drag and drop Employee onto the structure pane, there is no option for ADF Mobile Table. Hence, we will need to create the table on our own. To do this, let us first drop Employee as an ADF Read -Only form. This step is needed to get the required bindings. We will be deleting this form in a while. Now, from the Component palette, search for ‘Table Layout’. Drag and drop this below the command button. Within the tablelayout, insert ‘Row Layout’ and ‘Cell Format’ components. Final table structure should be as shown below. Here, we have also defined some inline styling to render the UI in a nice manner. <amx:tableLayout id="tl1" borderWidth="2" halign="center" inlineStyle="vertical-align:middle;" width="100%" cellPadding="10"> <amx:rowLayout id="rl1" > <amx:cellFormat id="cf1" width="30%"> <amx:outputText value="#{bindings.dept.hints.label}" id="ot7" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf2"> <amx:outputText value="#{bindings.dept.inputValue}" id="ot8" /> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl2"> <amx:cellFormat id="cf3" width="30%"> <amx:outputText value="#{bindings.desig.hints.label}" id="ot9" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf4" > <amx:outputText value="#{bindings.desig.inputValue}" id="ot10"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl3"> <amx:cellFormat id="cf5" width="30%"> <amx:outputText value="#{bindings.id.hints.label}" id="ot11" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf6" > <amx:outputText value="#{bindings.id.inputValue}" id="ot12"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl4"> <amx:cellFormat id="cf7" width="30%"> <amx:outputText value="#{bindings.name.hints.label}" id="ot13" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf8"> <amx:outputText value="#{bindings.name.inputValue}" id="ot14"/> </amx:cellFormat> </amx:rowLayout> <amx:rowLayout id="rl5"> <amx:cellFormat id="cf9" width="30%"> <amx:outputText value="#{bindings.salary.hints.label}" id="ot15" inlineStyle="color:rgb(0,148,231);"/> </amx:cellFormat> <amx:cellFormat id="cf10"> <amx:outputText value="#{bindings.salary.inputValue}" id="ot16"/> </amx:cellFormat> </amx:rowLayout> </amx:tableLayout> The values used in the output text of the table come from the bindings obtained from the ADF Form created earlier. As we have used the bindings and don’t need the form anymore, let us delete the form. One last thing before we deploy. When user changes employee ID, we want to clear the table contents. For this we associate a value change listener with the input text box. Click New in the resulting dialog to create a managed bean. Next, we create a method within the managed bean. For this, click on the New button associated with method. Call the method ‘empIDChange’. Open myClass.java and write the below code in empIDChange(). public void empIDChange(ValueChangeEvent valueChangeEvent) { // Add event code here... //Resetting the values to blank values when employee id changes AdfELContext adfELContext = AdfmfJavaUtilities.getAdfELContext(); ValueExpression ve = AdfmfJavaUtilities.getValueExpression("#{bindings.dept.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.desig.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.id.inputValue}", int.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.name.inputValue}", String.class); ve.setValue(adfELContext, ""); ve = AdfmfJavaUtilities.getValueExpression("#{bindings.salary.inputValue}", int.class); ve.setValue(adfELContext, ""); } That’s it. Deploy the application to android emulator or device. Some snippets from the app.

Read the article
Problems with :uniq => true/Distinct option in a has_many_through association w/ named scope (Rails)

- by MikeH

I had to make some tweaks to my app to add new functionality, and my changes seem to have broken the :uniq option that was previously working perfectly. Here's the set up: #User.rb has_many :products, :through = :seasons, :uniq = true has_many :varieties, :through = :seasons, :uniq = true #product.rb has_many :seasons has_many :users, :through = :seasons, :uniq = true has_many :varieties #season.rb belongs_to :product belongs_to :variety belongs_to :user named_scope :by_product_name, :joins = :product, :order = 'products.name' #variety.rb belongs_to :product has_many :seasons has_many :users, :through = :seasons, :uniq = true First I want to show you the previous version of the view that is now breaking, so that we have a baseline to compare. The view below is pulling up products and varieties that belong to the user. In both versions below, I've assigned the same products/varieties to the user so the logs will looking at the exact same use case. #user/show <% @user.products.each do |product| %> <%= link_to product.name, product %> <% @user.varieties.find_all_by_product_id(product.id).each do |variety| %> <%=h variety.name.capitalize %></p> <% end %> <% end %> This works. It displays only one of each product, and then displays each product's varieties. In the log below, product ID 1 has 3 associated varieties. And product ID 43 has none. Here's the log output for the code above: Product Load (11.3ms) SELECT DISTINCT `products`.* FROM `products` INNER JOIN `seasons` ON `products`.id = `seasons`.product_id WHERE ((`seasons`.user_id = 1)) ORDER BY name, products.name Product Columns (1.8ms) SHOW FIELDS FROM `products` Variety Columns (1.9ms) SHOW FIELDS FROM `varieties` Variety Load (0.7ms) SELECT DISTINCT `varieties`.* FROM `varieties` INNER JOIN `seasons` ON `varieties`.id = `seasons`.variety_id WHERE (`varieties`.`product_id` = 1) AND ((`seasons`.user_id = 1)) ORDER BY name Variety Load (0.5ms) SELECT DISTINCT `varieties`.* FROM `varieties` INNER JOIN `seasons` ON `varieties`.id = `seasons`.variety_id WHERE (`varieties`.`product_id` = 43) AND ((`seasons`.user_id = 1)) ORDER BY name Ok, so everything above is the previous version which was working great. In the new version, I added some columns to the join table called seasons, and made a bunch of custom methods that query those columns. As a result, I made the following changes to the view code that you saw above so that I could access those methods on the seasons model: <% @user.seasons.by_product_name.each do |season| %> <%= link_to season.product.name, season.product %> #Note: I couldn't get this loop to work at all, so I settled for the following: #<% @user.varieties.find_all_by_product_id(product.id).each do |variety| %> <%=h season.variety.name.capitalize %> <%end%> <%end%> Here's the log output for that: SQL (0.9ms) SELECT count(DISTINCT "products".id) AS count_products_id FROM "products" INNER JOIN "seasons" ON "products".id = "seasons".product_id WHERE (("seasons".user_id = 1)) Season Load (1.8ms) SELECT "seasons".* FROM "seasons" INNER JOIN "products" ON "products".id = "seasons".product_id WHERE ("seasons".user_id = 1) AND ("seasons".user_id = 1) ORDER BY products.name Product Load (0.7ms) SELECT * FROM "products" WHERE ("products"."id" = 43) ORDER BY products.name CACHE (0.0ms) SELECT "seasons".* FROM "seasons" INNER JOIN "products" ON "products".id = "seasons".product_id WHERE ("seasons".user_id = 1) AND ("seasons".user_id = 1) ORDER BY products.name Product Load (0.4ms) SELECT * FROM "products" WHERE ("products"."id" = 1) ORDER BY products.name Variety Load (0.4ms) SELECT * FROM "varieties" WHERE ("varieties"."id" = 2) ORDER BY name CACHE (0.0ms) SELECT * FROM "products" WHERE ("products"."id" = 1) ORDER BY products.name Variety Load (0.4ms) SELECT * FROM "varieties" WHERE ("varieties"."id" = 8) ORDER BY name CACHE (0.0ms) SELECT * FROM "products" WHERE ("products"."id" = 1) ORDER BY products.name Variety Load (0.4ms) SELECT * FROM "varieties" WHERE ("varieties"."id" = 7) ORDER BY name CACHE (0.0ms) SELECT * FROM "products" WHERE ("products"."id" = 43) ORDER BY products.name CACHE (0.0ms) SELECT count(DISTINCT "products".id) AS count_products_id FROM "products" INNER JOIN "seasons" ON "products".id = "seasons".product_id WHERE (("seasons".user_id = 1)) CACHE (0.0ms) SELECT "seasons".* FROM "seasons" INNER JOIN "products" ON "products".id = "seasons".product_id WHERE ("seasons".user_id = 1) AND ("seasons".user_id = 1) ORDER BY products.name CACHE (0.0ms) SELECT * FROM "products" WHERE ("products"."id" = 1) ORDER BY products.name CACHE (0.0ms) SELECT * FROM "products" WHERE ("products"."id" = 1) ORDER BY products.name CACHE (0.0ms) SELECT * FROM "varieties" WHERE ("varieties"."id" = 8) ORDER BY name I'm having two problems: (1) The :uniq option is not working for products. Three distinct versions of the same product are displaying on the page. (2) The :uniq option is not working for varieties. I don't have validation set up on this yet, and if the user enters the same variety twice, it does appear on the page. In the previous working version, this was not the case. The result I need is that only one product for any given ID displays, and all varieties associated with that ID display along with such unique product. One thing that sticks out to me is the sql call in the most recent log output. It's adding 'count' to the distinct call. I'm not sure why it's doing that or whether it might be an indication of an issue. I found this unresolved lighthouse ticket that seems like it could potentially be related, but I'm not sure if it's the same issue: https://rails.lighthouseapp.com/projects/8994/tickets/2189-count-breaks-sqlite-has_many-through-association-collection-with-named-scope I've tried a million variations on this and can't get it working. Any help is much appreciated!

Read the article
setIncludesSubentities: in an NSFetchRequest is broken for entities across multiple persistent store

- by SG

Prior art which doesn't quite address this: http://stackoverflow.com/questions/1774359/core-data-migration-error-message-model-does-not-contain-configuration-xyz I have narrowed this down to a specific issue. It takes a minute to set up, though; please bear with me. The gist of the issue is that a persistentStoreCoordinator (apparently) cannot preserve the part of an object graph where a managedObject is marked as a subentity of another when they are stored in different files. Here goes... 1) I have 2 xcdatamodel files, each containing a single entity. In runtime, when the managed object model is constructed, I manually define one entity as subentity of another using setSubentities:. This is because defining subentities across multiple files in the editor is not supported yet. I then return the complete model with modelByMergingModels. //Works! [mainEntity setSubentities:canvasEntities]; NSLog(@"confirm %@ is super for %@", [[[canvasEntities lastObject] superentity] name], [[canvasEntities lastObject] name]); //Output: "confirm Note is super for Browser" 2) I have modified the persistentStoreCoordinator method so that it sets a different store for each entity. Technically, it uses configurations, and each entity has one and only one configuration defined. //Also works! for ( NSString *configName in [[HACanvasPluginManager shared].registeredCanvasTypes valueForKey:@"viewControllerClassName"] ) { storeUrl = [NSURL fileURLWithPath:[[self applicationDocumentsDirectory] stringByAppendingPathComponent:[configName stringByAppendingPathExtension:@"sqlite"]]]; //NSLog(@"entities for configuration '%@': %@", configName, [[[self managedObjectModel] entitiesForConfiguration:configName] valueForKey:@"name"]); //Output: "entities for configuration 'HATextCanvasController': (Note)" //Output: "entities for configuration 'HAWebCanvasController': (Browser)" if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:configName URL:storeUrl options:options error:&error]) //etc 3) I have a fetchRequest set for the parent entity, with setIncludesSubentities: and setAffectedStores: just to be sure we get both 1) and 2) covered. When inserting objects of either entity, they both are added to the context and they both are fetched by the fetchedResultsController and displayed in the tableView as expected. // Create the fetch request for the entity. NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init]; [fetchRequest setEntity:entity]; [fetchRequest setIncludesSubentities:YES]; //NECESSARY to fetch all canvas types [fetchRequest setSortDescriptors:sortDescriptors]; [fetchRequest setFetchBatchSize:20]; // Set the batch size to a suitable number. [fetchRequest setAffectedStores:[[managedObjectContext persistentStoreCoordinator] persistentStores]]; [fetchRequest setReturnsObjectsAsFaults:NO]; Here is where it starts misbehaving: after closing and relaunching the app, ONLY THE PARENT ENTITY is fetched. If I change the entity of the request using setEntity: to the entity for 'Note', all notes are fetched. If I change it to the entity for 'Browser', all the browsers are fetched. Let me reiterate that during the run in which an object is first inserted into the context, it will appear in the list. It is only after save and relaunch that a fetch request fails to traverse the hierarchy. Therefore, I can only conclude that it is the storage of the inheritance that is the problem. Let's recap why: - Both entities can be created, inserted into the context, and viewed, so the model is working - Both entities can be fetched with a single request, so the inheritance is working - I can confirm that the files are being stored separately and objects are going into their appropriate stores, so saving is working - Launching the app with either entity set for the request works, so retrieval from the store is working - This also means that traversing different stores with the request is working - By using a single store instead of multiple, the problem goes away completely, so creating, storing, fetching, viewing etc is working correctly. This leaves only one culprit (to my mind): the inheritance I'm setting with setSubentities: is effective only for objects creating during the session. Either objects/entities are being stored stripped of the inheritance info, or entity inheritance as defined programmatically only applies to new instances, or both. Either of these is unacceptable. Either it's a bug or I am way, way off course. I have been at this every which way for two days; any insight is greatly appreciated. The current workaround - just using a single store - works completely, except it won't be future-proof in the event that I remove one of the models from the app etc. It also boggles the mind because I can't see why you would have all this infrastructure for storing across multiple stores and for setting affected stores in fetch requests if it by core definition (of setSubentities:) doesn't work.

Read the article
Confusion testing fftw3 - poisson equation 2d test

- by user3699736

I am having trouble explaining/understanding the following phenomenon: To test fftw3 i am using the 2d poisson test case: laplacian(f(x,y)) = - g(x,y) with periodic boundary conditions. After applying the fourier transform to the equation we obtain : F(kx,ky) = G(kx,ky) /(kx² + ky²) (1) if i take g(x,y) = sin (x) + sin(y) , (x,y) \in [0,2 \pi] i have immediately f(x,y) = g(x,y) which is what i am trying to obtain with the fft : i compute G from g with a forward Fourier transform From this i can compute the Fourier transform of f with (1). Finally, i compute f with the backward Fourier transform (without forgetting to normalize by 1/(nx*ny)). In practice, the results are pretty bad? (For instance, the amplitude for N = 256 is twice the amplitude obtained with N = 512) Even worse, if i try g(x,y) = sin(x)*sin(y) , the curve has not even the same form of the solution. (note that i must change the equation; i divide by two the laplacian in this case : (1) becomes F(kx,ky) = 2*G(kx,ky)/(kx²+ky²) Here is the code: /* * fftw test -- double precision */ #include <iostream> #include <stdio.h> #include <stdlib.h> #include <math.h> #include <fftw3.h> using namespace std; int main() { int N = 128; int i, j ; double pi = 3.14159265359; double *X, *Y ; X = (double*) malloc(N*sizeof(double)); Y = (double*) malloc(N*sizeof(double)); fftw_complex *out1, *in2, *out2, *in1; fftw_plan p1, p2; double L = 2.*pi; double dx = L/((N - 1)*1.0); in1 = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*(N*N) ); out2 = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*(N*N) ); out1 = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*(N*N) ); in2 = (fftw_complex*) fftw_malloc(sizeof(fftw_complex)*(N*N) ); p1 = fftw_plan_dft_2d(N, N, in1, out1, FFTW_FORWARD,FFTW_MEASURE ); p2 = fftw_plan_dft_2d(N, N, in2, out2, FFTW_BACKWARD,FFTW_MEASURE); for(i = 0; i < N; i++){ X[i] = -pi + (i*1.0)*2.*pi/((N - 1)*1.0) ; for(j = 0; j < N; j++){ Y[j] = -pi + (j*1.0)*2.*pi/((N - 1)*1.0) ; in1[i*N + j][0] = sin(X[i]) + sin(Y[j]) ; // row major ordering //in1[i*N + j][0] = sin(X[i]) * sin(Y[j]) ; // 2nd test case in1[i*N + j][1] = 0 ; } } fftw_execute(p1); // FFT forward for ( i = 0; i < N; i++){ // f = g / ( kx² + ky² ) for( j = 0; j < N; j++){ in2[i*N + j][0] = out1[i*N + j][0]/ (i*i+j*j+1e-16); in2[i*N + j][1] = out1[i*N + j][1]/ (i*i+j*j+1e-16); //in2[i*N + j][0] = 2*out1[i*N + j][0]/ (i*i+j*j+1e-16); // 2nd test case //in2[i*N + j][1] = 2*out1[i*N + j][1]/ (i*i+j*j+1e-16); } } fftw_execute(p2); //FFT backward // checking the results computed double erl1 = 0.; for ( i = 0; i < N; i++) { for( j = 0; j < N; j++){ erl1 += fabs( in1[i*N + j][0] - out2[i*N + j][0]/N/N )*dx*dx; cout<< i <<" "<< j<<" "<< sin(X[i])+sin(Y[j])<<" "<< out2[i*N+j][0]/N/N <<" "<< endl; // > output } } cout<< erl1 << endl ; // L1 error fftw_destroy_plan(p1); fftw_destroy_plan(p2); fftw_free(out1); fftw_free(out2); fftw_free(in1); fftw_free(in2); return 0; } I can't find any (more) mistakes in my code (i installed the fftw3 library last week) and i don't see a problem with the maths either but i don't think it's the fft's fault. Hence my predicament. I am all out of ideas and all out of google as well. Any help solving this puzzle would be greatly appreciated. note : compiling : g++ test.cpp -lfftw3 -lm executing : ./a.out output and i use gnuplot in order to plot the curves : (in gnuplot ) splot "output" u 1:2:4 ( for the computed solution )

Read the article
java: how to get a string representation of a compressed byte array ?

- by Guillaume

I want to put some compressed data into a remote repository. To put data on this repository I can only use a method that take the name of the resource and its content as a String. (like data.txt + "hello world"). The repository is moking a filesystem but is not, so I can not use File directly. I want to be able to do the following: client send to server a file 'data.txt' server compress 'data.txt' into a compressed file 'data.zip' server send a string representation of data.zip to the repository repository store data.zip client download from repository data.zip and his able to open it with its favorite zip tool The problem arise at step 3 when I try to get a string representation of my compressed file. Here is a sample class, using the zip*stream and that emulate the repository showcasing my problem. The created zip file is working, but after its 'serialization' it's get corrupted. (the sample class use jakarta commons.io ) Many thanks for your help. package zip; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.IOException; import java.io.InputStream; import java.util.zip.ZipEntry; import java.util.zip.ZipInputStream; import java.util.zip.ZipOutputStream; import org.apache.commons.io.FileUtils; /** * Date: May 19, 2010 - 6:13:07 PM * * @author Guillaume AME. */ public class ZipMe { public static void addOrUpdate(File zipFile, File ... files) throws IOException { File tempFile = File.createTempFile(zipFile.getName(), null); // delete it, otherwise you cannot rename your existing zip to it. tempFile.delete(); boolean renameOk = zipFile.renameTo(tempFile); if (!renameOk) { throw new RuntimeException("could not rename the file " + zipFile.getAbsolutePath() + " to " + tempFile.getAbsolutePath()); } byte[] buf = new byte[1024]; ZipInputStream zin = new ZipInputStream(new FileInputStream(tempFile)); ZipOutputStream out = new ZipOutputStream(new FileOutputStream(zipFile)); ZipEntry entry = zin.getNextEntry(); while (entry != null) { String name = entry.getName(); boolean notInFiles = true; for (File f : files) { if (f.getName().equals(name)) { notInFiles = false; break; } } if (notInFiles) { // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(name)); // Transfer bytes from the ZIP file to the output file int len; while ((len = zin.read(buf)) > 0) { out.write(buf, 0, len); } } entry = zin.getNextEntry(); } // Close the streams zin.close(); // Compress the files if (files != null) { for (File file : files) { InputStream in = new FileInputStream(file); // Add ZIP entry to output stream. out.putNextEntry(new ZipEntry(file.getName())); // Transfer bytes from the file to the ZIP file int len; while ((len = in.read(buf)) > 0) { out.write(buf, 0, len); } // Complete the entry out.closeEntry(); in.close(); } // Complete the ZIP file } tempFile.delete(); out.close(); } public static void main(String[] args) throws IOException { final String zipArchivePath = "c:/temp/archive.zip"; final String tempFilePath = "c:/temp/data.txt"; final String resultZipFile = "c:/temp/resultingArchive.zip"; File zipArchive = new File(zipArchivePath); FileUtils.touch(zipArchive); File tempFile = new File(tempFilePath); FileUtils.writeStringToFile(tempFile, "hello world"); addOrUpdate(zipArchive, tempFile); //archive.zip exists and contains a compressed data.txt that can be read using winrar //now simulate writing of the zip into a in memory cache String archiveText = FileUtils.readFileToString(zipArchive); FileUtils.writeStringToFile(new File(resultZipFile), archiveText); //resultingArchive.zip exists, contains a compressed data.txt, but it can not //be read using winrar: CRC failed in data.txt. The file is corrupt } }

Read the article
CodePlex Daily Summary for Monday, January 17, 2011

CodePlex Daily Summary for Monday, January 17, 2011Popular ReleasesBloodSim: BloodSim - 1.3.3.1: - Priority update to resolve a bug that was causing Boss damage to ignore Blood Shields entirelyfluentAOP - A Fluent AOP Library for .NET: fluentAOP.1.0.13.bin: fluentAOP.1.0.13.binXsltDb - DotNetNuke Module Builder: 02.00.36: New FeaturesAdvanced database caching. XsltDb now supports SqlCacheDependency. This great feature allows minimizing database load for heavily loaded site pages as home page, latest news, etc. mdo:sql and mdo:xml supports JSON output formats $json each recordset is converted to array of JSON records $jsonrow – first record of first recordset is converted to JSON object mdo:header section. You now able to inject anything you need at page header, top of the form or top of the module. mdo...Rawr: Rawr 4.0.16 Beta: Rawr is now web-based. The link to use Rawr4 is: http://elitistjerks.com/rawr.phpThis is the Cataclysm Beta Release. More details can be found at the following link http://rawr.codeplex.com/Thread/View.aspx?ThreadId=237262 As of this release, you can now also begin using the new Downloadable WPF version of Rawr!This is a pre-alpha release of the WPF version, there are likely to be a lot of issues. If you have a problem, please follow the Posting Guidelines and put it into the Issue Tracker. W...MvcContrib: an Outer Curve Foundation project: MVC 3 - 3.0.51.0: Please see the Change Log for a complete list of changes. MVC BootCamp Description of the releases: MvcContrib.Release.zip MvcContrib.dll MvcContrib.TestHelper.dll MvcContrib.Extras.Release.zip T4MVC. The extra view engines / controller factories and other functionality which is in the project. This file includes the main MvcContrib assembly. Samples are included in the release. You do not need MvcContrib if you download the Extras.Yahoo! UI Library: YUI Compressor for .Net: Version 1.5.0.0 - Jalthi: Updated solution to VS2010. New: Work Item #4450 - Optional MSBuild task parameter :: Do not error if no files were found. Fixed: Work Item #5028 - Output file encoding is the same as the optional MSBuild task encoding argument. Fixed: Work Item #5824 - MSBuilds where slow, after the first build due to the Current Thread being forced to en-gb, on none en-gb systems. Changed: Work Item #6873 - Project license changed from MS-PL to GPLv2. New: Added all the unit tests from the Java YU...N2 CMS: 2.1.1: N2 is a lightweight CMS framework for ASP.NET. It helps you build great web sites that anyone can update. 2.1.1 Maintenance release List of changes 2.1 Major Changes Support for auto-implemented properties ({get;set;}, based on contribution by And Poulsen) File manager improvements (multiple file upload, resize images to fit) New image gallery Infinite scroll paging on news Content templates First time with N2? Try the demo site Download one of the template packs (above) and open...TweetSharp: TweetSharp v2.0.0.0 - Preview 8: Documentation for this release may be found at http://tweetsharp.codeplex.com/wikipage?title=UserGuide&referringTitle=Documentation. Note: This code is currently preview quality. Preview 8 ChangesUpgraded library references to address reported regressions Third Party Library VersionsHammock v1.1.6: http://hammock.codeplex.com Json.NET 4.0 Release 1: http://json.codeplex.comVidCoder: 0.8.1: Adds ability to choose an arbitrary range (in seconds or frames) to encode. Adds ability to override the title number in the output file name when enqueing multiple titles. Updated presets: Added iPhone 4, Apple TV 2, fixed some existing presets that should have had weightp=0 or trellis=0 on them. Added {parent} option to auto-name format. Use {parent:2} to refer to a folder 2 levels above the input file. Added {title:2} option to auto-name format. Adds leading zeroes to reach the sp...Microsoft SQL Server Product Samples: Database: AdventureWorks2008R2 without filestream: This download contains a version of the AdventureWorks2008R2 OLTP database without FILESTREAM properties. You do not need to have filestream enabled to attach this database. No additional schema or data changes have been made. To install the version of AdventureWorks2008R2 that includes filestream, use the SR1 installer available here. Prerequisites: Microsoft SQL Server 2008 R2 must be installed. Full-Text Search must be enabled. Installing the AdventureWorks2008R2 OLTP database: 1. Cl...NuGet: NuGet 1.0 RTM: NuGet is a free, open source developer focused package management system for the .NET platform intent on simplifying the process of incorporating third party libraries into a .NET application during development. This release is a Visual Studio 2010 extension and contains the the Package Manager Console and the Add Package Dialog.MVC Music Store: MVC Music Store v2.0: This is the 2.0 release of the MVC Music Store Tutorial. This tutorial is updated for ASP.NET MVC 3 and Entity Framework Code-First, and contains fixes and improvements based on feedback and common questions from previous releases. The main download, MvcMusicStore-v2.0.zip, contains everything you need to build the sample application, including A detailed tutorial document in PDF format Assets you will need to build the project, including images, a stylesheet, and a pre-populated databas...Free Silverlight & WPF Chart Control - Visifire: Visifire SL and WPF Charts v3.6.7 GA Released: Hi, Today we are releasing Visifire 3.6.7 GA with the following feature: * Inlines property has been implemented in Title. Also, this release contains fix for the following bugs: * In Column and Bar chart DataPoint’s label properties were not working as expected at real-time if marker enabled was set to true. * 3D Column and Bar chart were not rendered properly if AxisMinimum property was set in x-axis. You can download Visifire v3.6.7 here. Cheers, Team VisifireASP.NET MVC Project Awesome, jQuery Ajax helpers (controls): 1.6: A rich set of helpers (controls) that you can use to build highly responsive and interactive Ajax-enabled Web applications. These helpers include Autocomplete, AjaxDropdown, Lookup, Confirm Dialog, Popup Form, Popup and Pager new stuff: paging for the lookup lookup with multiselect changes: the css classes used by the framework where renamed to be more standard the lookup controller requries an item.ascx (no more ViewData["structure"]), and LookupList action renamed to Search all the...??????????: All-In-One Code Framework ??? 2011-01-12: 2011???????All-In-One Code Framework（??） 2011?1??????！！http://i3.codeplex.com/Project/Download/FileDownload.aspx?ProjectName=1code&DownloadId=128165 ?????release?，???????ASP.NET, AJAX, WinForm, Windows Shell????13?Sample Code。???，??????????sample code。 ?????：http://blog.csdn.net/sjb5201/archive/2011/01/13/6135037.aspx ??，??????MSDN????????????。 http://social.msdn.microsoft.com/Forums/zh-CN/codezhchs/threads ?????????????????，??Email ????patterns & practices – Enterprise Library: Enterprise Library 5.0 - Extensibility Labs: This is a preview release of the Hands-on Labs to help you learn and practice different ways the Enterprise Library can be extended. Learning MapCustom exception handler (estimated time to complete: 1 hr 15 mins) Custom logging trace listener (1 hr) Custom configuration source (registry-based) (30 mins) System requirementsEnterprise Library 5.0 / Unity 2.0 installed SQL Express 2008 installed Visual Studio 2010 Pro (or better) installed AuthorsChris Tavares, Microsoft Corporation ...Orchard Project: Orchard 1.0: Orchard Release Notes Build: 1.0.20 Published: 1/12/2010 How to Install OrchardTo install Orchard using Web PI, follow these instructions: http://www.orchardproject.net/docs/Installing-Orchard.ashx Web PI will detect your hardware environment and install the application. --OR-- Alternatively, to install the release manually, download the Orchard.Web.1.0.20.zip file. http://orchardproject.net/docs/Manually-installing-Orchard-zip-file.ashx The zip contents are pre-built and ready-to-run...Umbraco CMS: Umbraco 4.6.1: The Umbraco 4.6.1 (codename JUNO) release contains many new features focusing on an improved installation experience, a number of robust developer features, and contains nearly 200 bug fixes since the 4.5.2 release. Getting Started A great place to start is with our Getting Started Guide: Getting Started Guide: http://umbraco.codeplex.com/Project/Download/FileDownload.aspx?DownloadId=197051 Make sure to check the free foundation videos on how to get started building Umbraco sites. They're ...StyleCop for ReSharper: StyleCop for ReSharper 5.1.14986.000: A considerable amount of work has gone into this release: Features: Huge focus on performance around the violation scanning subsystem: - caching added to reduce IO operations around reading and merging of settings files - caching added to reduce creation of expensive objects Users should notice condsiderable perf boost and a decrease in memory usage. Bug Fixes: - StyleCop's new ObjectBasedEnvironment object does not resolve the StyleCop installation path, thus it does not return the ...Facebook C# SDK: 4.2.1: - Authentication bug fixes - Updated Json.Net to version 4.0.0 - BREAKING CHANGE: Removed cookieSupport config setting, now automatic. This download is also availible on NuGet: Facebook FacebookWeb FacebookWebMvcNew ProjectsAddition/Multiplication: It's A simple application developed in <programming language> Use this to perform large but simple Addition and MultiplicationCustom Paging API: This dll contains custom paging method. you can implement this custom paging easily in to your project DanubeSalsaConnection: DanubeSalsaConnectionDNN Menu Provider: You think working with standard DotNetNuke menu providers is a pain? You don't want to study XSLT befor skinning your menu? You are looking for a simple as well as powerful solution? Well, then you are exactly right here! Ejemplos WP7 Silverlight: Los ejemplos en silverlight para WP7 pueden servir de base de las aplicaciones más comunes. Todos los ejemplos son en lenguaje C#.GPS Nerd: Technologies: - ASP.NET MVC, MySQL, NHibernate, Ninject, Google Maps API The GPS Nerd project is a meant to be a platform to learn how to build a website by pulling in various technologies. More Info: See the documentation. Live Site: http://gpsnerd.comNetLirc: .NET LIRC Server with PIC16F628A IR sensornForum For Umbraco: This is the beginning of a forum package for Umbraco, it is built purely using Linq2umbraco so if your an XSLT ninja you are out of luck at the moment. more details to come soon...Orchard Feeds Aggregator Module: Feeds Aggregator Module for Orchard CMSSilverlight for Windows Phone Performance Samples: A collection of Silverlight for Windows Phone code samples highlighting good coding practices.SilvyAcc - Silverlight Accordion Control: This is custom made Silverlight Accordion control.Twesh Ajax: TweshAjax is clientside javascript library for making asynchronous calls to server.WikiPageContentPopulator: This Project allows SharePoint 2010 developers to add wiki page content during the installation of the solution via Feature Receiver WPaolo7: Programmi WPaolo7WPFEdit: WPFEdit is a starter kit for applications that edit files. It contains easy-to-use starter controls and a document management system. WPFEdit is developed with C# / .NET 4.0 / WPF.

Read the article
CodePlex Daily Summary for Saturday, June 23, 2012

CodePlex Daily Summary for Saturday, June 23, 2012Popular ReleasesWPF Application Framework (WAF): WPF Application Framework (WAF) 2.5.0.5: Version: 2.5.0.5 (Milestone 5): This release contains the source code of the WPF Application Framework (WAF) and the sample applications. Requirements .NET Framework 4.0 (The package contains a solution file for Visual Studio 2010) The unit test projects require Visual Studio 2010 Professional Changelog Legend: [B] Breaking change; [O] Marked member as obsolete WAF: Add IsInDesignMode property to the WafConfiguration class. WAF: Introduce the IModuleController interface. WAF: Add ...Windows 8 Metro RSS Reader: Metro RSS Reader.v7: Updated for Windows 8 Release Preview Changed background and foreground colors Used VariableSizeGrid layout to wrap blog posts with images Sort items with Images first, text-only last Enabled Caching to improve navigation between frames This is the release package of the source code The package includes x64, x86 releases. Installation Instructions http://dl.dropbox.com/u/23484650/RssReaderMetro/Screenshots/AppPackage.JPG Select x64 or x86 folder from the package http://dl.dropbox.com...Confuser: Confuser 1.9: Change log: * Stable output (i.e. given the same seed & input assemblies, you'll get the same output assemblies) + Generate debug symbols, now it is possible to debug the output under a debugger! (Of course without enabling anti debug) + Generating obfuscation database, most of the obfuscation data in stored in it. + Two tools utilizing the obfuscation database (Database viewer & Stack trace decoder) * Change the protection scheme -----Please read Bug Report before you report a bug-----XDA ROM HUB: XDA ROM HUB v0.8.2: From now on, the downloads will be in 7z format, much less to download. Organized folders, some users didn't find the program at all. Added installer. Auto scroll in log view.XDesigner.Development: First release: First releaseBlackJumboDog: Ver5.6.5: 2012.06.22 Ver5.6.5 　(1) FTP??????? EPSV ??　EPRT　???????DotNetNuke® Form and List: 06.00.01: DotNetNuke Form and List 06.00.01 Changes in 06.00.01 Icons are shown in module action buttons (workaraound to core issue with IconAPI) Fix to Token2XSL Editor, changing List type raised exception MakeTumbnail and ShowXml handlers had been missing in install package Updated help texts for better understanding of filter statement, token support in email subject and css style Major changes for fnL 6.0: DNN 6 Form Patterns including modal PopUps and Tabs http://www.dotnetnuke.com/Po...MVVM Light Toolkit: V4RTM (binaries only) including Windows 8 RP: This package contains all the latest DLLs for MVVM Light V4 RTM. It includes the DLLs for Windows 8 Release Preview. An updated Nuget package is also available at http://nuget.org/packages/MvvmLightLibs An installer with binaries, snippets and templates will follow ASAP.Weapsy - ASP.NET MVC CMS: 1.0.0: - Some changes to Layout and CSS - Changed version number to 1.0.0.0 - Solved Cache and Session items handler error in IIS 7 - Created the Modules, Plugins and Widgets Areas - Replaced CKEditor with TinyMCE - Created the System Info page - Minor changesAcDown????? - AcDown Downloader Framework: AcDown????? v3.11.7: ?? ●AcDown??????????、??、??????。????，????，?????????????????????????。???????????Acfun、????(Bilibili)、??、??、YouTube、??、???、??????、SF????、????????????。 ●??????AcPlay?????，??????、????????????????。 ● AcDown??????????????????，????????????????????????????。 ● AcDown???????C#??，????.NET Framework 2.0??。?????"Acfun?????"。 ????32??64? Windows XP/Vista/7/8 ??：????????Windows XP???,?????????.NET Framework 2.0???(x86)，?????"?????????"??? ??????????????，??????????： ??"AcDown?????"????????? ...NShader - HLSL - GLSL - CG - Shader Syntax Highlighter AddIn for Visual Studio: NShader 1.3 - VS2010 + VS2012: This is a small maintenance release to support new VS2012 as well as VS2010. This release is also fixing the issue The "Comment Selection" include the first line after the selection If the new NShader version doesn't highlight your shader, you can try to: Remove the registry entry: HKEY_CURRENT_USER\Software\Microsoft\VisualStudio\11.0\FontAndColors\Cache Remove all lines using "fx" or "hlsl" in file C:\Program Files (x86)\Microsoft Visual Studio 11.0\Common7\IDE\CommonExtensions\Micr...Xenta Framework - extensible enterprise n-tier application framework: Xenta Framework 1.8.0: System Requirements OS Windows 7 Windows Vista Windows Server 2008 Windows Server 2008 R2 Web Server Internet Information Service 7.0 or above .NET Framework .NET Framework 4.0 WCF Activation feature HTTP Activation Non-HTTP Activation for net.pipe/net.tcp WCF bindings ASP.NET MVC ASP.NET MVC 3.0 Database Microsoft SQL Server 2005 Microsoft SQL Server 2008 Microsoft SQL Server 2008 R2 Additional Deployment Configuration Started Windows Process Activation service Start...CrashReporter.NET : Exception reporting library for C# and VB.NET: CrashReporter.NET 1.1: Added screenshot support that takes screenshot of user's desktop on application crash and provides option to include screenshot with crash report. Added Windows version in crash reports. Added email field and exception type field in crash report dialog. Added exception type in crash reports. Added screenshot tab that shows crash screenshot.CTI Text Encryption: CTI Text Encryption 3.0: Fix a bug - The application will occasionally freeze during encryption or decryption process.MFCMAPI: June 2012 Release: Build: 15.0.0.1034 Full release notes at SGriffin's blog. If you just want to run the MFCMAPI or MrMAPI, get the executables. If you want to debug them, get the symbol files and the source. The 64 bit builds will only work on a machine with Outlook 2010 64 bit installed. All other machines should use the 32 bit builds, regardless of the operating system. Facebook BadgeMonoGame - Write Once, Play Everywhere: MonoGame 2.5.1: Release Notes The MonoGame team are pleased to announce that MonoGame v2.5.1 has been released. This release contains important bug fixes and minor updates. Recent additions include project templates for iOS and MacOS. The MonoDevelop.MonoGame AddIn also works on Linux. We have removed the dependency on the thirdparty GamePad library to allow MonoGame to be included in the debian/ubuntu repositories. There have been a major bug fix to ensure textures are disposed of correctly as well as some ...Sense/Net CMS - Enterprise Content Management: SenseNet 6.1 Community Edition: Sense/Net 6.1 Community EditionMain new features:major performance optimizations Office 2010 and Basic authentication support new main page and enhanced demo experience The new 6.1 release is a true milestone in the history of Sense/Net ECMS. In the past few months we mostly concentrated on performance optimizations and implemented low-level features for improved scalability and robustness. We have tested the system in high availability setup under high load by conducting a benchmark duri...????: ????2.0.2: 1、???????????。 2、DJ???????10?，?????????10?。 3、??.NET 4.5(Windows 8)????????????。 4、???????????。 5、??????????????。 6、???Windows 8????。 7、?????2.0.1???????????????。 8、??DJ?????????。Azure Storage Explorer: Azure Storage Explorer 5 Preview 1 (6.17.2012): Azure Storage Explorer verison 5 is in development, and Preview 1 provides an early look at the new user interface and some of the new features. Here's what's new in v5 Preview 1: New UI, similar to the new Windows Azure HTML5 portal Support for configuring and viewing storage account logging Support for configuring and viewing storage account monitoring Uses the Windows Azure 1.7 SDK libraries Bug fixes????????API for .Net SDK: SDK for .Net ??? Release 2: 6?20????? ?? - FrindesInActive???????json?????????，???????????。??。 6?19????? ?? - ???????????????，???????0?????????。 ?? - ???Entity?????Suggestion??????????????JSON????????。 ?? - ???OAuth?Request??????AccessToken???SourceKey????QueryString?????????。 6?17????? ??? - .net 4.0 SDK??Dynamic??????????????????API?? ??? - ?Utility?????????API??????DateTime???ParseUTCDate ?? - ?????????????Json.net???，???SDK????Json.net?????。 ?? - ???Client??????API???GetCommand?PostCommand，??????????????...New ProjectsAuditMVC: This project is for Shanghai Educational Committee.Autopoco Contrib: this a contribute to autopoco projectBit Food: summary to be createdC-Breeze: This project aims to create a compiler capable of compiling the full grammar set of C.ContosoCookbook Lab in Windows 8 camp: For everyoneDemo_ASP.NET: ssdfsdfsdfsdfsdfsdfsdFluTe: FluTe is an advanced alternative to the string.Format method, written using F# and C#. It allows you to define Template objects using a fluent interface.IFV Releases: hey.. Welcome To IFV Code Files.. here We Upload old Source codes For IDM Patch...Innovacall MVC Framework and Starter Kits: Empty MVC 3.2 project with common Framework and multiple layers. The project is open but not ready. LetUsTalk: To Establish Connection With Different Web AppMEF Container and Azure: Example of loading files from Azure Storage into DirectoryCatalog for consumption via MEF.Nana C++ Library: Nana C++ Library takes aim at easy-to-use and portable library, it provides a GUI framework and threads for easy programming with modern C++ methods.NBU Library: MVC3 application providing university library services to users, students and professors, and interface for the librarians to process the requests.Platform OS: Platform OS is a new operating system being developed by LeveL X. (LeveLX.org)SampleTFSProfject: My first Project using TFSSilverlight DateSelector: DateSelector Custom Control. Silverlight custom control where dates can be selected. It's easy to use and user friendly. SPMegaMenu: Purpose: Create an implementation of a JQuery Mega Menu Derive menu content from SharePoint lists NOT rely on installed feature. (Created entirely client-sideSuCasa Application: This is the Su Casa education and iministry application. This is for grades and outreach.Task Card Creator 2012: Small tool for printing task cards used for a Scrum board. Your Scrum board will be looking impressive. For Team Foundation Server 2012.Test_Project: Lucky0504 Test_ProjectThe Fugitive: The FugitiveTopcoder problems: Nothing to write down here at now.tweetc - A windows command line twitter client: Review/Send tweets all from the comfort of the command line.Windows Phone 7 Contact Synchroniztion: Its a Web Application App for Windows Phone 7 to provide contact sharing mechanism over any network.WMemoryProfiler: WMemoryProfiler is a managed memory profiling API to aid integration testing of managed components. It does support .Net 2.0 up to 4.5 (x86,x64).WordSync: WordSync is a simplistic, user-friendly document editor that will keep your documents in sync using Google Drive or Dropbox and still edit them offline.Xydan fantasy game project: This project is meant to be a garage project creating a unique game.YSTrade: YS Trade System??????: dbFM??Windows????????????????。??????、?????????，??????????。????????：http://www.win7soft.com/justplus/dbfm ????bug???： ??：justplus@ahu.edu.cn justplus@163.com

Read the article

Search Results

Search found 18379 results on 736 pages for 'output buffering'.

Page 252/736 | < Previous Page | 248 249 250 251 252 253 254 255 256 257 258 259 | Next Page >

- by Rick Strahl

- by Cobby

- by Paul White NZ

- by Sven Arno Jopen

- by sreejukg

- by Florian

- by user34790

- by newba

- by Alan Smith

- by Helgi Hrafn Gunnarsson

- by Jess Nickson

- by ccasares

- by Paul White

- by Guillaume

- by PadmajaBhat

- by MikeH

- by SG

- by user3699736

- by Guillaume

< Previous Page | 248 249 250 251 252 253 254 255 256 257 258 259 | Next Page >