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  • Why open source it? And how to get real involvement?

    - by donpal
    For me the main goal of open sourcing something is collaboration. If the most that other developers are going to do is take it and use it and report bugs to me, then I might as well close source it. Closed source provides me with all that. I was recently looking at a small javascript library (or more like a plugin, 1000 lines of code) that's actually quite popular. There were some bugs in it because new browsers and browser versions get released everyday and these bugs just pop up as a result. What bothered me is that these bugs would actually be quite easy to fix by even intermediate javascript developers, but for an entire month no one stepped up to fix the bug and submit the fixed version. The original author was apparently busy for that month, but that's the point of open sourcing your code: so that others can use it and help themselves AND the project if they can. So this makes me doubt the promise of open source. If people aren't working on it too, I might as well close source my new projects. And how do you get people involved so that open sourcing is worth it?

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  • Postgre database ignoring created index ?!

    - by drasto
    I have an Postgre database and a table called my_table. There are 4 columns in that table (id, column1, column2, column3). The id column is primary key, there are no other constrains or indexes on columns. The table has about 200000 rows. I want to print out all rows which has value of column column2 equal(case insensitive) to 'value12'. I use this: SELECT * FROM my_table WHERE column2 = lower('value12') here is the execution plan for this statement(result of set enable_seqscan=on; EXPLAIN SELECT * FROM my_table WHERE column2 = lower('value12')): Seq Scan on my_table (cost=0.00..4676.00 rows=10000 width=55) Filter: ((column2)::text = 'value12'::text) I consider this to be to slow so I create an index on column column2 for better prerformance of searches: CREATE INDEX my_index ON my_table (lower(column2)) Now I ran the same select: SELECT * FROM my_table WHERE column2 = lower('value12') and I expect it to be much faster because it can use index. However it is not faster, it is as slow as before. So I check the execution plan and it is the same as before(see above). So it still uses sequential scen and it ignores the index! Where is the problem ?

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  • why limxml2 quotes starting double slash in CDATA with javascript

    - by Vincenzo
    This is my code: <?php $data = <<<EOL <?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html> <script type="text/javascript"> //<![CDATA[ var a = 123; // JS code //]]> </script> </html> EOL; $dom = new DOMDocument(); $dom->preserveWhiteSpace = false; $dom->formatOutput = false; $dom->loadXml($data); echo '<pre>' . htmlspecialchars($dom->saveXML()) . '</pre>'; This is result: <?xml version="1.0"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <script type="text/javascript"><![CDATA[ //]]><![CDATA[ var a = 123; // JS code //]]><![CDATA[ ]]></script></html> If and when I remove the DOCTYPE notation from XML document, CDATA works properly and leading/trailing double slash is not turned into CDATA. What is the problem here? Bug in libxml2? PHP version is 5.2.13 on Linux. Thanks.

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  • Stored Procedure Does Not Fire Last Command

    - by jp2code
    On our SQL Server (Version 10.0.1600), I have a stored procedure that I wrote. It is not throwing any errors, and it is returning the correct values after making the insert in the database. However, the last command spSendEventNotificationEmail (which sends out email notifications) is not being run. I can run the spSendEventNotificationEmail script manually using the same data, and the notifications show up, so I know it works. Is there something wrong with how I call it in my stored procedure? [dbo].[spUpdateRequest](@packetID int, @statusID int output, @empID int, @mtf nVarChar(50)) AS BEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; DECLARE @id int SET @id=-1 -- Insert statements for procedure here SELECT A.ID, PacketID, StatusID INTO #act FROM Action A JOIN Request R ON (R.ID=A.RequestID) WHERE (PacketID=@packetID) AND (StatusID=@statusID) IF ((SELECT COUNT(ID) FROM #act)=0) BEGIN -- this statusID has not been entered. Continue SELECT ID, MTF INTO #req FROM Request WHERE PacketID=@packetID WHILE (0 < (SELECT COUNT(ID) FROM #req)) BEGIN SELECT TOP 1 @id=ID FROM #req INSERT INTO Action (RequestID, StatusID, EmpID, DateStamp) VALUES (@id, @statusID, @empID, GETDATE()) IF ((@mtf IS NOT NULL) AND (0 < LEN(RTRIM(@mtf)))) BEGIN UPDATE Request SET MTF=@mtf WHERE ID=@id END DELETE #req WHERE ID=@id END DROP TABLE #req SELECT @id=@@IDENTITY, @statusID=StatusID FROM Action SELECT TOP 1 @statusID=ID FROM Status WHERE (@statusID<ID) AND (-1 < Sequence) EXEC spSendEventNotificationEmail @packetID, @statusID, 'http:\\cpweb:8100\NextStep.aspx' END ELSE BEGIN SET @statusID = -1 END DROP TABLE #act END Idea of how the data tables are connected:

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  • Is Stream.Write thread-safe?

    - by Mike Spross
    I'm working on a client/server library for a legacy RPC implementation and was running into issues where the client would sometimes hang when waiting to a receive a response message to an RPC request message. It turns out the real problem was in my message framing code (I wasn't handling message boundaries correctly when reading data off the underlying NetworkStream), but it also made me suspicious of the code I was using to send data across the network, specifically in the case where the RPC server sends a large amount of data to a client as the result of a client RPC request. My send code uses a BinaryWriter to write a complete "message" to the underlying NetworkStream. The RPC protocol also implements a heartbeat algorithm, where the RPC server sends out PING messages every 15 seconds. The pings are sent out by a separate thread, so, at least in theory, a ping can be sent while the server is in the middle of streaming a large response back to a client. Suppose I have a Send method as follows, where stream is a NetworkStream: public void Send(Message message) { //Write the message to a temporary stream so we can send it all-at-once MemoryStream tempStream = new MemoryStream(); message.WriteToStream(tempStream); //Write the serialized message to the stream. //The BinaryWriter is a little redundant in this //simplified example, but here because //the production code uses it. byte[] data = tempStream.ToArray(); BinaryWriter bw = new BinaryWriter(stream); bw.Write(data, 0, data.Length); bw.Flush(); } So the question I have is, is the call to bw.Write (and by implication the call to the underlying Stream's Write method) atomic? That is, if a lengthy Write is still in progress on the sending thread, and the heartbeat thread kicks in and sends a PING message, will that thread block until the original Write call finishes, or do I have to add explicit synchronization to the Send method to prevent the two Send calls from clobbering the stream?

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  • IBOutlet instances are (null) after loading from NIB

    - by Zach
    I am working on an iPhone app and am getting (null) references to IBOutlet fields in my controller. I have a UIViewController subclass that is set as the File's Owner in my XIB. I have a set of UI elements that are wired into the controller. After loading from NIB and attempting to set properties on those UI elements, I find that they are (null). To clarify, some code: ExpandSearchPageController.h: @interface ExpandSearchPageController : UIViewController { IBOutlet UITextView * completeMessageView; } -(void)checkTextField; @property (nonatomic, retain) IBOutlet UITextView * completeMessageView; ExpandSearchPageController.m: @implementation ExpandSearchPageController @synthesize completeMessageView; -(void)checkTextField { NSLog(@"text field: %@",completeMessageView); } ExpandSearchPageController is set as the File's Owner for ExpandSearchPage.xib. ExpandSearchPage.xib's UITextView is wired to the completeMessageView. When I call ExpandSearchPageController * searchExpanderPage = [[ExpandSearchPageController alloc] initWithNibName:@"ExpandSearchPage" bundle:[NSBundle mainBundle]]; [searchExpanderPage checkTextField]; the result is "text field: (null)" Sorry if this is a total newb question, but I guess I'm still a newb at iPhone programming! Thanks in advance!

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  • Scala and Java BigDecimal

    - by geejay
    I want to switch from Java to a scripting language for the Math based modules in my app. This is due to the readability, and functional limitations of mathy Java. For e.g, in Java I have this: BigDecimal x = new BigDecimal("1.1"); BigDecimal y = new BigDecimal("1.1"); BigDecimal z = x.multiply(y.exp(new BigDecimal("2")); As you can see, without BigDecimal operator overloading, simple formulas get complicated real quick. With doubles, this looks fine, but I need the precision. I was hoping in Scala I could do this: var x = 1.1; var y = 0.1; print(x + y); And by default I would get decimal-like behaviour, alas Scala doesn't use decimal calculation by default. Then I do this in Scala: var x = BigDecimal(1.1); var y = BigDecimal(0.1); println(x + y); And I still get an imprecise result. Is there something I am not doing right in Scala? Maybe I should use Groovy to maximise readability (it uses decimals by default)?

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  • Action property of interface type

    - by Daniel
    Hi, guys. With my understading, the nature of a Action is that properties can be pushed w/ request parameter values. And, one wonderful feature is that Struts2 allows you to directly populate parameter values against Class type property ;) Assuming there exists a Action and property class as below, class Action extends ActionSupport { User user; @Action(value="hello" {@result=(.......)}) public void execute() { ........ } ..... public void setUser(User user) { this.user = user; } public User getUser() { return this.user; } } class User { String name; ..... public void setName(String name) { this.name = name; } public String getName() { return this.name; } } you could populate User class property by doing like this. http://...../hello.action?user.name=John or via jsp page Then, I realize that there are actually people make an Action property as a Interface type. My question is what is the reason behind this. If there is a sample code demonstrating it will be great. Thanks in advance!

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  • XML-RPC over SSL with Ruby: end of file reached (EOFError)

    - by Michael Conigliaro
    Hello, I have some very simple Ruby code that is attempting to do XML-RPC over SSL: require 'xmlrpc/client' require 'pp' server = XMLRPC::Client.new2("https://%s:%d/" % [ 'api.ultradns.net', 8755 ]) pp server.call2('UDNS_OpenConnection', 'sponsor', 'username', 'password') The problem is that it always results in the following EOFError exception: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/1.8/net/protocol.rb:135:in `sysread': end of file reached (EOFError) So it appears that after doing the POST, I don't get anything back. Interestingly, this is the behavior I would expect if I tried to make an HTTP connection on the HTTPS port (or visa versa), and I actually do get the same exact exception if I change the protocol. Everything I've looked at indicates that using "https://" in the URL is enough to enable SSL, but I'm starting wonder if I've missed something. Note that Even though the credentials I'm using in the RPC are made up, I'm expecting to at least get back an XML error page (similar to if you access https://api.ultradns.net:8755/ with a web browser). I've tried running this code on OSX and Linux with the exact same result, so I have to conclude that I'm just doing something wrong here. Does anyone have any examples of doing XML-RPC over SSL with Ruby?

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  • Implementing a scrabble trainer

    - by bstullkid
    Hello, I've recently been playing alot of online scrabble so I decided to make a program that quickly searches through a dictionary of 200,000+ words with an input of up to any 26 letters. My first attempt was fail as it took a while when you input 8 or more letters (just a basic look through dictionary and cancel out a letter if its found kind of thing), so I made a tree like structure containing only an array of 26 of the same structure and a flag to indicate the end of a word, doing that It can output all possible words in under a second even with an input of 26 characters. But it seems that when I input 12 or more letters with some of the same characters repeated i get duplicates; can anyone see why I would be getting duplicates with this code? (ill post my program at the bottom) Also, the next step once the duplicates are weeded out is to actually be able to input the letters on the game board and then have it calculate the best word you can make on a given board. I am having trouble trying to figure out a good algorithm that can analyze a scrabble board and an input of letters and output a result; the possible words that could be made I have no problem with but actually checking a board efficiently (ie can this word fit here, or here etc... without creating a non dictionary word in the process on some other string of letters) Anyone have a idea for an approach at that? (given a scrabble board, and an input of 7 letters, find all possible valid words or word sets that you can make) lol crap i forgot to email myself the code from my other computer thats in another state... ill post it on monday when I get back there! btw the dictionary im using is sowpods (http://www.calvin.edu/~rpruim/scrabble/ospd3.txt)

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  • How to find Tomcat's PID and kill it in python?

    - by 4herpsand7derpsago
    Normally, one shuts down Apache Tomcat by running its shutdown.sh script (or batch file). In some cases, such as when Tomcat's web container is hosting a web app that does some crazy things with multi-threading, running shutdown.sh gracefully shuts down some parts of Tomcat (as I can see more available memory returning to the system), but the Tomcat process keeps running. I'm trying to write a simple Python script that: Calls shutdown.sh Runs ps -aef | grep tomcat to find any process with Tomcat referenced If applicable, kills the process with kill -9 <PID> Here's what I've got so far (as a prototype - I'm brand new to Python BTW): #!/usr/bin/python # Imports import sys import subprocess # Load from imported module. if __init__ == "__main__": main() # Main entry point. def main(): # Shutdown Tomcat shutdownCmd = "sh ${TOMCAT_HOME}/bin/shutdown.sh" subprocess.call([shutdownCmd], shell=true) # Check for PID grepCmd = "ps -aef | grep tomcat" grepResults = subprocess.call([grepCmd], shell=true) if(grepResult.length > 1): # Get PID and kill it. pid = ??? killPidCmd = "kill -9 $pid" subprocess.call([killPidCmd], shell=true) # Exit. sys.exit() I'm struggling with the middle part - with obtaining the grep results, checking to see if their size is greater than 1 (since grep always returns a reference to itself, at least 1 result will always be returned, methinks), and then parsing that returned PID and passing it into the killPidCmd. Thanks in advance!

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  • Creating syncable Calendar in ICS

    - by user1390816
    I have a problem with creating a new Calendar in ICS. The Calendar should be synyable to the google Calendar. I try following: Uri calendarUri = CalendarContract.Calendars.CONTENT_URI; calendar.put(CalendarContract.Calendars.ACCOUNT_NAME, sync_account); calendar.put(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google"); calendar.put(CalendarContract.Calendars.NAME, name); calendar.put(CalendarContract.Calendars.CALENDAR_DISPLAY_NAME, displayName); calendar.put(CalendarContract.Calendars.CALENDAR_COLOR, 0xFF008080); calendar.put(CalendarContract.Calendars.CALENDAR_ACCESS_LEVEL, CalendarContract.Calendars.CAL_ACCESS_OWNER); calendar.put(CalendarContract.Calendars.OWNER_ACCOUNT, true); calendar.put(CalendarContract.Calendars.VISIBLE, 1); calendar.put(CalendarContract.Calendars.SYNC_EVENTS, 1); calendarUri = calendarUri.buildUpon() .appendQueryParameter(CalendarContract.CALLER_IS_SYNCADAPTER, "true") .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_NAME, sync_account) .appendQueryParameter(CalendarContract.Calendars.ACCOUNT_TYPE, "com.google") // CalendarContract.ACCOUNT_TYPE_LOCAL .build(); Uri result = activity.getContentResolver().insert(calendarUri, calendar); an I get always this error: 09-17 17:11:30.278: E/AndroidRuntime(13243): FATAL EXCEPTION: CalendarSyncAdapterAccountMonitor 09-17 17:11:30.278: E/AndroidRuntime(13243): java.lang.IllegalArgumentException: the name must not be empty: null 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.accounts.Account.<init>(Account.java:48) 09-17 17:11:30.278: E/AndroidRuntime(13243): at com.google.android.syncadapters.calendar.CalendarSyncAdapter.onAccountsUpdated(CalendarSyncAdapter.java:1129) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.accounts.AccountManager$11.run(AccountManager.java:1279) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Handler.handleCallback(Handler.java:605) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Handler.dispatchMessage(Handler.java:92) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.Looper.loop(Looper.java:137) 09-17 17:11:30.278: E/AndroidRuntime(13243): at android.os.HandlerThread.run(HandlerThread.java:60) 09-17 17:11:30.293: E/android.os.Debug(1989): !@Dumpstate > dumpstate -k -t -n -z -d -o /data/log/dumpstate_app_error What can I do with the CalendarSyncAdapterAccountMonitor, that it is not empty? Thanks in advance.

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  • Eclipse-plugin: Can't see my results in AbstractTextSearchViewPage

    - by Jason Kealey
    I've implemented a ISearchQuery and ISearchResult. They get loaded into my class that extends AbstractTextSearchViewPage. I'm using some code taken from the FileSearchPage to show the results in both a TreeViewer and a TableViewer. protected void configureTableViewer(TableViewer viewer) { viewer.setUseHashlookup(true); FileLabelProvider innerLabelProvider = new FileLabelProvider(this, FileLabelProvider.SHOW_LABEL_PATH); viewer.setLabelProvider(new DecoratingLabelProvider(innerLabelProvider, PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator())); viewer.setContentProvider(new UrnTableContentProvider(this)); viewer.setComparator(new DecoratorIgnoringViewerSorter(innerLabelProvider)); fContentProvider = (IFileSearchContentProvider) viewer.getContentProvider(); } protected void configureTreeViewer(TreeViewer viewer) { viewer.setUseHashlookup(true); FileLabelProvider innerLabelProvider = new FileLabelProvider(this, FileLabelProvider.SHOW_LABEL_PATH); viewer.setLabelProvider(new DecoratingLabelProvider(innerLabelProvider, PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator())); viewer.setContentProvider(new UrnTreeContentProvider(this, viewer)); viewer.setComparator(new DecoratorIgnoringViewerSorter(innerLabelProvider)); fContentProvider = (IFileSearchContentProvider) viewer.getContentProvider(); } When searching using the regular file search, each individual result is visible under the file and the label says "(X matches)". In my own editor, however, I only see the file with X matches found inside that file, but I don't see the details in either the TreeViewer or the TableViewer. Any tips?

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  • SQLite transaction doesn't work as expected

    - by troll
    I prepared 2 files, "1.php" and "2.php". "1.php" is like this. <?php $dbh = new PDO('sqlite:test1'); $dbh->beginTransaction(); print "aaa<br>"; sleep(55); $dbh->commit(); print "bbb"; ?> and "2.php" is like this. <?php $dbh = new PDO('sqlite:test1'); $dbh->beginTransaction(); print "ccc<br>"; $dbh->commit(); print "ddd"; ?> and I excute "1.php". It starts a transaction and waits 55 seconds. So when I immediately excute "2.php", my expectation is this: "1.php" is getting transaction and "1" holds a database lock "2" can not begin a transaction "2" can not get database lock so "2" have to wait 55 seconds BUT, but the test went another way. When I excute "2",then "2" immediately returned it's result "2" did not wait so I have to think that "1" could not get transaction, or could not get database lock. Can anyone help?

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  • jquery ui css not loading and creating poblems with asp.net mvc3 page (unexpected token error)

    - by giddy
    hi, So I suspect Im doing something silly, but first off, I can see that my mvc3 project already had jquery ui in it but no theme css files. I needed a date picked and as usual needed to override the EditorFor DateTime. I started off today by just using the default jquery ui js files supplied with the project under scripts. The date picker shows up fine, only with a completed messed up UI based on Site.css. So now I downloaded a build of jquery (with the start theme) and followed this page about how to put it together. Im using T4MVC so my page looks like this: Layout.cshtml : <script src="@Links.Scripts.jquery_1_4_4_js" type="text/javascript"></script> <link href="@Links.Content.Site_css" rel="stylesheet" type="text/css" /> <script src="@Links.Content.start.jquery_ui_1_8_7_custom_css" type="text/javascript"></script> Create.cshtml <script src="@Links.Scripts.jquery_validate_min_js" type="text/javascript"></script> <script src="@Links.Scripts.jquery_validate_unobtrusive_min_js" type="text/javascript"></script> <script src="@Links.Scripts.jquery_ui_1_8_7_custom_min_js" type="text/javascript"></script> And this is the result: Any ideas, Ive been googleing for a while now, I tried a couple combinations of where I put the script and css files tags in different places, but nothing seems to work.

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  • Creating futures using Apple's GCD

    - by jer
    I'm working on a library which implements the actor model on top of Grand Central Dispatch (specifically the C level API libdispatch). Basically a brief overview of my system is as such: Communication happens between actors using messages Multicast communication only (one actor to many actors) Senders and receivers are decoupled from one another using a blackboard where messages are pushed to. Messages are sent in the default queue asynchronously using dispatch_group_async() once a message gets pushed onto the blackboard. I'm trying to implement futures in the language right now, so I've created a new type which holds some information: A group of its own The value being 'returned' However, I have a problem since dispatch_block_t is of type void (^)(void) so it doesn't return anything. So my idea of in my future_new() function of setting up another group which can be used to execute a block returning a result, which I can store in my "value" member in my future_t structure, isn't going to work. The rest of the futures implementation is very clear, except it all depends on being able to get the value into the future back from the actor, acting on the message. When using the library, it would greatly reduce its usefulness if I had to ask users (and myself) to be aware when futures were going to be used by other parts of the system—It just isn't practical. I'm wondering if anyone can think of a way around this?

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  • How to retrieve view of MultiIndex DataFrame

    - by Henry S. Harrison
    This question was inspired by this question. I had the same problem, updating a MultiIndex DataFrame by selection. The drop_level=False solution in Pandas 0.13 will allow me to achieve the same result, but I am still wondering why I cannot get a view from the MultiIndex DataFrame. In other words, why does this not work?: >>> sat = d.xs('sat', level='day', copy=False) Traceback (most recent call last): File "<stdin>", line 1, in <module> File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 2248, in xs raise ValueError('Cannot retrieve view (copy=False)') ValueError: Cannot retrieve view (copy=False) Of course it could be only because it is not implemented, but is there a reason? Is it somehow ambiguous or impossible to implement? Returning a view is more intuitive to me than returning a copy then later updating the original. I looked through the source and it seems this situation is checked explicitly to raise an error. Alternatively, is it possible to get the same sort of view from any of the other indexing methods? I've experimented but have not been successful. [edit] Some potential implementations are discussed here. I guess with the last question above I'm wondering what the current best solution is to index into arbitrary multiindex slices and cross-sections.

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  • Sprint velocity calculations

    - by jase
    Need some advice on working out the team velocity for a sprint. Our team normally consists of about 4 developers and 2 testers. The scrum master insists that every team member should contribute equally to the velocity calculation i.e. we should not distinguish between developers and testers when working out how much we can do in a sprint. The is correct according to Scrum, but here's the problem. Despite suggestions to the contrary, testers never help with non-test tasks and developers never help with non-dev tasks, so we are not cross functional team members at all. Also, despite various suggestions, testers normally spend the first few days of each sprint waiting for something to test. The end result is that typically we take on far more dev work than we actually have capacity for in the sprint. For example, the developers might contribute 20 days to the velocity calculation and the testers 10 days. If you add up the tasks after sprint planning though, dev tasks add up to 25 days and test tasks add up to 5 days. How do you guys deal with this sort of situation?

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  • Creating a function in Postgresql that does not return composite values

    - by celenius
    I'm learning how to write functions in Postgresql. I've defined a function called _tmp_myfunction() which takes in an id and returns a table (I also define a table object type called _tmp_mytable) -- create object type to be returned CREATE TYPE _tmp_mytable AS ( id integer, cost double precision ); -- create function which returns query CREATE OR REPLACE FUNCTION _tmp_myfunction( id integer ) RETURNS SETOF _tmp_mytable AS $$ BEGIN RETURN QUERY SELECT id, cost FROM sales WHERE id = sales.id; END; $$ LANGUAGE plpgsql; This works fine when I use one id and call it using the following approach: SELECT * FROM _tmp_myfunction(402); What I would like to be able to do is to call it, but to use a column of values instead of just one value. However, if I use the following approach I end up with all values of the table in one column, separated by commas: -- call function using all values in a column SELECT _tmp_myfunction(t.id) FROM transactions as t; I understand that I can get the same result if I use SELECT _tmp_myfunction(402); instead of SELECT * FROM _tmp_myfunction(402); but I don't know how to construct my query in such a way that I can separate out the results.

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  • Create folder and insert file in Google Drive

    - by web_student
    I am trying to create a new folder in Drive and upload one (or more) files to that created folder. I use the code below, but the result is that both the folder and the file are placed in the root of my Drive. $client->setAccessToken($_SESSION['accessToken']); //create folder $folder_mime = "application/vnd.google-apps.folder"; $folder_name = 'New Folder'; $service = new Google_DriveService($client); $folder = new Google_DriveFile(); $folder->setTitle($folder_name); $folder->setMimeType($folder_mime); $service->files->insert($folder); //upload file $file_name = $_FILES["uploadFile"]["name"]; $file_mime = $_FILES["uploadFile"]["type"]; $file_path = $_FILES["uploadFile"]["tmp_name"]; $service = new Google_DriveService($client); $file = new Google_DriveFile(); $file->setParents(array($folder_name)); $file->setTitle($file_name); $file->setDescription('This is a '.$file_mime.' document'); $file->setMimeType($file_mime); $service->files->insert( $file, array( 'data' => file_get_contents($file_path) ) );

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  • KeyStore, HttpClient, and HTTPS: Can someone explain this code to me?

    - by stormin986
    I'm trying to understand what's going on in this code. KeyStore trustStore = KeyStore.getInstance(KeyStore.getDefaultType()); FileInputStream instream = new FileInputStream(new File("my.keystore")); try { trustStore.load(instream, "nopassword".toCharArray()); } finally { instream.close(); } SSLSocketFactory socketFactory = new SSLSocketFactory(trustStore); Scheme sch = new Scheme("https", socketFactory, 443); httpclient.getConnectionManager().getSchemeRegistry().register(sch); My Questions: trustStore.load(instream, "nopassword".toCharArray()); is doing what exactly? From reading the documentation load() will load KeyStore data from an input stream (which is just an empty file we just created), using some arbitrary "nopassword". Why not just load it with null as the InputStream parameter and an empty string as the password field? And then what is happening when this empty KeyStore is being passed to the SSLSocketFactory constructor? What's the result of such an operation? Or -- is this simply an example where in a real application you would have to actually put a reference to an existing keystore file / password?

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  • Events and references pattern

    - by serhio
    In a project I have the following relation between BO and GUI By e.g. G could represent a graphic with time lines, C a TimeLine curve, P - points of that curve and T the time that represents each point. Each GUI object is associated with the BO corresponding object. When T changes GUI P captures the Changed event and changes its location. So, when G should be modified, it modifies internally its objects and as result T changes, P moves and the GuiG visually changes, everything is OK. But there is an inconvenient of this architecture... BO should not be recreated, because this will breack the link between BO and GUIO. In particular, GUI P should always have the same reference of T. If in a business logic I do by e.g. P1.T = new T(this.T + 10) GUI_P1 will not move anymore, because it wait an event from the reference of former P1.T object, that does not belongs to P1 anymore. So the solution was to always modify the existing objects, not to recreate it. But here is an other inconvenient: performance. Say I have a ready newC object that should replace the older one. Instead of doing G1.C = newC I should do foreach T in foreach P in C replace with T from P from newC. Is there an other more optimal way to do it?

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  • How do I ensure that a regex does not match an empty string?

    - by Dancrumb
    I'm using the Jison parser generator for Javascript and am having problems with my language specification. The program I'm writing will be a calculator that can handle feet, inches and sixteenths. In order to do this, I have the following specification: %% ([0-9]+\s*"'")?\s*([0-9]+\s*"\"")?\s*([0-9]+\s*"s")? {return 'FIS';} [0-9]+("."[0-9]+)?\b {return 'NUMBER';} \s+ {/* skip whitespace */} "*" {return '*';} "/" {return '/';} "-" {return '-';} "+" {return '+';} "(" {return '(';} ")" {return ')';} <<EOF>> {return 'EOF';} Most of these lines come from a basic calculator specification. I simply added the first line. The regex correctly matches feet, inch, sixteenths, such as 6'4" (six feet, 4 inches) or 4"5s (4 inches, 5 sixteenths) with any kind of whitespace between the numbers and indicators. The problem is that the regex also matches a null string. As a result, the lexical analysis always records a FIS at the start of the line and then the parsing fails. Here is my question: is there a way to modify this regex to guarantee that it will only match a non-zero length string?

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  • FBPermissionDialog bug, showing "Welcome to Facebook" page

    - by Oliver
    I'm experiencing a weird bug that I can replicate pretty consistently with the FBConnect iPhone SDK, more specifically with the class FBPermissionDialog. The result is that instead of seeing the standard extended permissions dialog, the user is shown this: http://cl.ly/15Lx. The only way around it is for the user to delete the app and reinstall. This is how I have replicated it: On first login, the user is asked for extended permissions on something (the dialog displays correctly). The user declines the permission. User quits the app. The user relaunches the app and since we still need the permission, we ask again. Instead of the permission dialog, the user is shown the "Welcome to Facebook" page. The only way for the user to get asked again is to delete the app and reinstall. Has anyone else experienced this? Is there a workaround? Here is the code I use to ask for permission, I believe it's pretty standard. // Create a permission dialog FBPermissionDialog *dialog = [[[FBPermissionDialog alloc] init] autorelease]; dialog.delegate = self; dialog.permission = @"read_stream"; [dialog show];

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  • What can cause my code to run slower when the server JIT is activated?

    - by durandai
    I am doing some optimizations on an MPEG decoder. To ensure my optimizations aren't breaking anything I have a test suite that benchmarks the entire codebase (both optimized and original) as well as verifying that they both produce identical results (basically just feeding a couple of different streams through the decoder and crc32 the outputs). When using the "-server" option with the Sun 1.6.0_18, the test suite runs about 12% slower on the optimized version after warmup (in comparison to the default "-client" setting), while the original codebase gains a good boost running about twice as fast as in client mode. While at first this seemed to be simply a warmup issue to me, I added a loop to repeat the entire test suite multiple times. Then execution times become constant for each pass starting at the 3rd iteration of the test, still the optimized version stays 12% slower than in the client mode. I am also pretty sure its not a garbage collection issue, since the code involves absolutely no object allocations after startup. The code consists mainly of some bit manipulation operations (stream decoding) and lots of basic floating math (generating PCM audio). The only JDK classes involved are ByteArrayInputStream (feeds the stream to the test and excluding disk IO from the tests) and CRC32 (to verify the result). I also observed the same behaviour with Sun JDK 1.7.0_b98 (only that ist 15% instead of 12% there). Oh, and the tests were all done on the same machine (single core) with no other applications running (WinXP). While there is some inevitable variation on the measured execution times (using System.nanoTime btw), the variation between different test runs with the same settings never exceeded 2%, usually less than 1% (after warmup), so I conclude the effect is real and not purely induced by the measuring mechanism/machine. Are there any known coding patterns that perform worse on the server JIT? Failing that, what options are available to "peek" under the hood and observe what the JIT is doing there?

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