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• Flash video slooow in AIR 2 HTMLLoader component

  - by shane

  I am working on a full screen kiosk application in Flex 4/Air 2 using Flash Builder 4. We have a company training website which staff can access via the kiosk, and the main content is interactive flash training videos. Our target machines are by no means 'beefy', they are Atom n270s @ 1.6Ghz with 1Gb RAM. As it stands the videos are all but unusable when used from within the Air application, the application becomes completely unresponsive (100% cpu usage, click events take approx 5-10 seconds to register). So far I have tried: increasing the default frame rate from 24fps to 60. No improvement. nativeWindow.stage.frameRate = 60; running the videos in a stripped down version of my app, just a full screen HTMLLoader component pointed at the training website. No better than before. disabled hyper threading. The Atom CPU is split into two virtual cores, and the AIR app was only able to use one thread so maxed out at 50% CPU usage. Since the kiosk will only run the AIR app I am happy to loose hyper threading to increase the performance of the Air app. Marginal Improvement. The same website with the same videos is responsive if viewed in ie7 on the same machine, although Internet Explorer takes advantage of the CPU’s hyper threading. The flash videos are built with Adobe Captivate and from what I understand employee JavaScript to relay results back to the server. I will add more information about the video content asap as the training guru is back in the office later this week.

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• What does this code from AuthKit do? (where are these functions and methods defined?)

  - by Beau Simensen

  I am trying to implement my own authentication method for AuthKit and am trying to figure out how some of the built-in methods work. In particular, I'm trying to figure out how to update the REMOTE_USER for environ correctly. This is how it is handled inside of authkit.authenticate.basic but it is pretty confusing. I cannot find anyplace where REMOTE_USER and AUTH_TYPE are defined. Is there something strange going on here and if so, what is it? def __call__(self, environ, start_response): environ['authkit.users'] = self.users result = self.authenticate(environ) if isinstance(result, str): AUTH_TYPE.update(environ, 'basic') REMOTE_USER.update(environ, result) return self.application(environ, start_response) There are actually a number of all uppercase things like this that I cannot find a definition for. For example, where does AUTHORIZATION come from below: def authenticate(self, environ): authorization = AUTHORIZATION(environ) if not authorization: return self.build_authentication() (authmeth, auth) = authorization.split(' ',1) if 'basic' != authmeth.lower(): return self.build_authentication() auth = auth.strip().decode('base64') username, password = auth.split(':',1) if self.authfunc(environ, username, password): return username return self.build_authentication() I feel like maybe I am missing some special syntax handling for the environ dict, but it is possible that there is something else really weird going on here that isn't immediately obvious to someone as new to Python as myself.

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• Winforms: How to speed up Invalidate()?

  - by Pedery

  I'm developing a retained mode drawing application in GDI+. The application can draw simple shapes to a canvas and perform basic editing. The math that does this is optimized to the last byte and is not an issue. I'm drawing on a panel that is using the built-in Controlstyles.DoubleBuffer. Now, my problem arises if I run my app maximized on a big monitor (HD in my case). If I try to draw a line from one corner of the (big) canvas to the diagonally oposite other, it will start to lag and the CPU goes high up. Each graphical object in my app has a boundingbox. Thus, when I invalidate the boundingbox of a line that goes from one corner of the maximized app to the oposite diagonal one, that boundingbox is virtually as big as the canvas. When a user is drawing a line, this invalidation of the boundingbox thus happens on the mousemove event, and there is a clear lag visible. This lag also exists if the line is the only object on the canvas. I've tried to optimize this in many ways. If I draw a shorter line, the CPU and the lag goes down. If I remove the Invalidate() and keep all other code, the app is quick. If I use a Region (that only spans the figure) to invalidate instead of the boundingbox, it is just as slow. If I split the boundingbox into a range of smaller boxes that lie back to back, thus reducing the invalidation area, no visible performance gain can be seen. Thus I'm at a loss here. How can I speed up the invalidation? On a side note, both Paint.Net and Mspaint suffers from the same shortcommings. Word and PowerPoint however, seem to be able to paint a line as described above with no lag and no CPU load at all. Thus it's possible to achieve the desired results, the question is how?

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• STLport crash (race condition, Darwin only?)

  - by Jonas Byström

  When I run STLport on Darwin I get a strange crash. (Haven't seen it anywhere else than on Mac, but exactly same thing crash on both i686 and PowerPC.) This is what it looks like in gdb: Program received signal EXC_BAD_ACCESS, Could not access memory. Reason: 13 at address: 0x0000000000000000 [Switching to process 21097] 0x000000010120f47c in stlp_std::__node_alloc_impl::_M_allocate () It may be some setting in STLport, I noticed that Mac.h and MacOSX.h seemed far behind on features. I also know that it it must be some type of race condition, since it doesn't occur just by calling this method (implicity called). The crash happens mainly when I push the system, running 10 simultaneous threads that do a lot of string handling. Other theories I come up with have to do with compiler flags (configure script) and g++ 4.2 bugs (seems like 4.4.3 isn't on Mac yet with Objective-C support, which I need to link with). HELP!!! :) Edit: I run unit tests, which do all sorts of things. This problem arise when I start 10 threads that push the system; and it always comes down to std::string::append which eventually boils down to _M_allocate. Since I can't even get a descent dump of the code that's causing the problem, I figure I'm doing something bad. Could it be so since it's trying to execute at instruction pointer 0x000...000? Are dynlibs built as DLLs in Windows with a jump table? Could it perhaps be that such a jump table has been overwritten for some reason? That would probably explain this behavior. (The code is huge, if I run out of other ideas, I'll post a minimum crashing sample here.)

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• Perl, module export symbol

  - by Mike

  I'm having trouble understanding how to export a package symbol to a namespace. I've followed the documentation almost identically, but it seems to not know about any of the exporting symbols. mod.pm #!/usr/bin/perl package mod; use strict; use warnings; require Exporter; @ISA = qw(Exporter); @EXPORT=qw($a); our $a=(1); 1; test.pl $ cat test.pl #!/usr/bin/perl use mod; print($a); This is the result of running it $ ./test.pl Global symbol "@ISA" requires explicit package name at mod.pm line 10. Global symbol "@EXPORT" requires explicit package name at mod.pm line 11. Compilation failed in require at ./test.pl line 3. BEGIN failed--compilation aborted at ./test.pl line 3. $ perl -version This is perl, v5.8.4 built for sun4-solaris-64int

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• Why does my Delphi program's memory continue to grow?

  - by lkessler

  I am using Delphi 2009 which has the FastMM4 memory manager built into it. My program reads in and processes a large dataset. All memory is freed correctly whenever I clear the dataset or exit the program. It has no memory leaks at all. Using the CurrentMemoryUsage routine given in spenwarr's answer to: http://stackoverflow.com/questions/437683/how-to-get-the-memory-used-by-a-delphi-program, I have displayed the memory used by FastMM4 during processing. What seems to be happening is that memory is use is growing after every process and release cycle. e.g.: 1,456 KB used after starting my program with no dataset. 218,455 KB used after loading a large dataset. 71,994 KB after clearing the dataset completely. If I exit at this point (or any point in my example), no memory leaks are reported. 271,905 KB used after loading the same dataset again. 125,443 KB after clearing the dataset completely. 325,519 KB used after loading the same dataset again. 179,059 KB after clearing the dataset completely. 378,752 KB used after loading the same dataset again. It seems that my program's memory use is growing by about 53,400 KB upon each load/clear cycle. Task Manager confirms that this is actually happening. I have heard that FastMM4 does not always release all of the program's memory back to the Operating system when objects are freed so that it can keep some memory around when it needs more. But this continual growing bothers me. Since no memory leaks are reported, I can't identify a problem. Does anyone know why this is happening, if it is bad, and if there is anything I can or should do about it?

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• Using ant to add directories to CVS

  - by ANooBee

  How do I add a new directory into my CVS repository using Ant? From all that I've read, it appears that I have to cd to the parent directory and call the cvs command. How do I do that in Ant? I've seen approaches where an to cd is called in Ant; is that the best approach? Eg of what I am trying to do: Let's say I have a module Test_Module with directories "A", "B" and "C". Under each of these directories, there are directories for "Jan", "June", "Sept" and I want to create a "Alpha" directory under Test_Module- C - Sept. So, I create a "Alpha" directory on my local system and run the cvs add command from Root and I get the following errror: cvs add: in directory .: cvs [add aborted]: there is no version here; do 'cvs checkout' first I get the same error when I run this using Ant or from command line. Now, if I cd to the Test_Module/C/Sept directory and run "cvs add Alpha" it creates the directory and everything is fine. So, how do I do the same in Ant? Are there any ant-contrib tasks that are out there that I could possibly use or even a built-in ant task that I am missing? Thanks in Advance!!

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• Preventing Processes From Spawning Using .NET Code

  - by Matt

  I remember coming across an article on I think CodeProject quite some time ago regarding an antivirus or antimalware some guy was writing where he hooked into the Windows API to be able to catch whenever a new process was started and was prompting he user before allowing the process to start. I can no longer find the article, and would actually like to be able to implement something like this. Currently, we have a custom browser built on Gecko that we've integrated access restrictions to sites based on our internal employee security levels, etc. We prevent any other browser from running with a timer and a call to Process.GetProcessesByName() from a list of the browsers we don't allow. What we want to accomplish is, instead of just blocking these browsers, where there is a small delay between the other browser starting and it being killed by our service, we'd like to be able to display a dialog instead of the process launching at all, explaining that the program isn't in the allowed list. This way, we can generate a list of "allowed" processes and just block everything else (we haven't yet had a problem with outside apps being installed, but you can never be too careful). Unfortunately, we don't do much Windows API programming from C#, so I'm not sure where to begin looking for what calls we need to hook. Even just a starting point of what to read up on would be helpful.

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• inbound/outbound url routing in asp.net MVC

  - by Stephane

  The routing I need is quite simple, I must be missing something there. As code example I put the simpler situation where I can reproduce my behavior. You have this ActionMethod : public ActionResult Index(string provider) { ViewData["Message"] = provider; return View("Index"); } And you have this route : routes.MapRoute( null, "{controller}/{action}/{provider}", new { controller = "Home", action = "Index", provider = "Default" } ); // Parameter defaults You can call /Home/Index/Custom and provider will take the value "Custom" What Route would I need if I want the url /?provider=Custom to map the provider to the parameter. I thought that would just work, because the default controller and the default action would be used, and the provider from the querystring would be used instead of the default one. but the querystring is just ignored here. That's a problem in my situation as I have a form using HTTP GET method. The form action has to be Html.BeginForm(c=c.Index(null)) which is resolved as / and the value of my form are added in the querystring. (the provider being a dropdown in the form) So the url built by the form is /?abc=value&cde=value...

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• What are the primitive Forth operators?

  - by Barry Brown

  I'm interested in implementing a Forth system, just so I can get some experience building a simple VM and runtime. When starting in Forth, one typically learns about the stack and its operators (DROP, DUP, SWAP, etc.) first, so it's natural to think of these as being among the primitive operators. But they're not. Each of them can be broken down into operators that directly manipulate memory and the stack pointers. Later one learns about store (!) and fetch (@) which can be used to implement DUP, SWAP, and so forth (ha!). So what are the primitive operators? Which ones must be implemented directly in the runtime environment from which all others can be built? I'm not interested in high-performance; I want something that I (and others) can learn from. Operator optimization can come later. (Yes, I'm aware that I can start with a Turing machine and go from there. That's a bit extreme.) Edit: What I'm aiming for is akin to bootstrapping an operating system or a new compiler. What do I need do implement, at minimum, so that I can construct the rest of the system out of those primitive building blocks? I won't implement this on bare hardware; as an educational exercise, I'd write my own minimal VM.

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• Creative ways to punish (or just curb) laziness in coworkers

  - by FerretallicA

  Like the subject suggests, what are some creative ways to curb laziness in co-workers? By laziness I'm talking about things like using variable names like "inttheemplrcd" instead of "intEmployerCode" or not keeping their projects synced with SVN, not just people who use the last of the sugar in the coffee room and don't refill the jar. So far the two most effective things I've done both involve the core library my company uses. Since most of our programs are in VB.net the lack of case sensitivity is abused a lot. I've got certain features of the library using Reflection to access data in the client apps, which has a negligible performance hit and introduces case sensitivity in a lot places where it is used. In instances where we have an agreed standard which is compromised by blatant laziness I take it a step further, like the DatabaseController class which will blatantly reject any DataTable passed to it which isn't named dtSomething (ie- must begin with dt and third letter must be capitalised). It's frustrating to have to resort to things like this but it has also gradually helped drill more attention to detail into their heads. Another is adding some code to the library's initialisation function to display a big and potentially embarrassing (only if seen by a client) message advising that the program is running in debug mode. We have had many instances where projects are sent to clients built in debug mode which has a lot of implications for us (especially with regard to error recovery) and doing that has made sure they always build to release before distributing. Any other creative (ie- not StyleCop etc) approaches like this?

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• Can a single developer still make money with shareware?

  - by Wouter van Nifterick

  I'm wondering if the shareware concept is dead nowadays. Like most developers, I've built up quite a collection of self-made tools and code libraries that help me to be productive. Some examples to give you an idea of the type of thing I'm talking about: A self-learning program that renames and orders all my mp3 files and adds information to the id3 tags; A Delphi component that wraps the Google Maps API; A text-to-singing-voice converter for musical purposes; A program to control a music synthesizer; A Gps-log <- KML <- ESRI-shapefile converter; I've got one of these already freely downloadable on my website, and on average it gets downloaded about a 150 times per month. Let's say I'd start charging 15 euro's for it; would there actually be people who buy it? How many? What would it depend on? If I could get some money for some of these, I'd finish them up a bit and put them online, but without that, I probably won't bother. Maintaining a SourceForge project is not very rewarding by itself. Is there anyone who is making money with shareware? How much? Any tips?

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• automated email downloading and treading similar messages

  - by Michael

  Okay here it is : I have built an c# console app that downloads email, save attachments , and stores the subject, from, to, body to a MS SQL Database. I use aspNetPOP3 Component to do this. I have build a front end ASP.NET application to search and view the messages. Works great. Next Steps (this is where I need help ): Now I want my users (of the asp.net app) to reply to this message send the email to the originator, and tread any additional replies back and forth on from that original message(like basecamp). This would allow my end user not to have to log-in to a system, they just continue using email (our users can as well). The question is what should I use to determine if messages are related? Subject line I think is a bad approach. I believe the best method i've seen so far is way basecamp does it, but I'm not sure how that is done, here is a real example of the reply to address from a basecamp email (I've changed the host name): [email protected] Basecamp obviously are prefixing the pre-pending a tracking id to the email address, however , when I try this with my mail service, it's rejected. Is this the best approach, is there a way I can accomplish this, is there a better approach, or even a better email component tool? Thanks, Mike

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• MacBook Pro - Aquamacs - spell check

  - by peggy Li

  I have tried to use spell check for aquamac. I highlighted a region of the text. Then clicked Edit, then spell check region. I got the error message: Error : No word lists can be found for the language "en_US". Then I went to the website to download the following dictionaries: CocoAspell : I just clicked the download button. It was reported that the download was successful. However, when I tested it and highlighted a text region and clicked spell check. The same error message came out. Do I need to pull the downloaded .pkg to a certain place, such as the application folder, before I opened the .pkg? Or what else do I need to do make it work? I also downloaded the base package Aspell (for Intel) and the pre-built dictionaries as (as the instruction of the website), just the same way as point 1. I still got the same error message. Again, Do I need to pull the downloaded .pkg to a certain place, such as the application folder, before I opened the .pkg? Or what else do I need to do make it work? I would be greatly appreciated if someone could give me some help? Peggy Li

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• How do I build BugTrap?

  - by magnifico

  I am trying to build the Itellesoft BugTrap source using Visual Studio 2008. I have downloaded and unziped the BugTrap source and the zlib source. I navigated down to ./BugTrap/Win32/BugTrap and opened BugTrap.sln (suggest by the author here). I used Build-Build Solution and the build failed with a compiler error: fatal error C1083: Cannot open include file: 'zip.h': No such file or directory I opened the project properties and added the path to the zlib-vc/zlib/include folder to the list of "Additional Include Directories" and tried to build again. The second build attempt failed with a linker error: fatal error LNK1104: cannot open file 'zlibSD.lib' I opened the zlib project and built the source. The zlib build succeeded. However, the bin directory does not contain a zlibSD.lib. The closest file in name is zlibMSD.lib. This poster on CodeProject seemed to have the same problem I did. But there is no resolution posted. Hopefully someone out there has experience building this project and can point me in the right direction, I've played with the binary distribution and it seems really slick.

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• Reporting System architecture for better performance

  - by pauloya

  Hi, We have a product that runs Sql Server Express 2005 and uses mainly ASP.NET. The database has around 200 tables, with a few (4 or 5) that can grow from 300 to 5000 rows per day and keep a history of 5 years, so they can grow to have 10 million rows. We have built a reporting platform, that allows customers to build reports based on templates, fields and filters. We face performance problems almost since the beginning, we try to keep reports display under 10 seconds but some of them go up to 25 seconds (specially on those customers with long history). We keep checking indexes and trying to improve the queries but we get the feeling that there's only so much we can do. Off course the fact that the queries are generated dynamically doesn't help with the optimization. We also added a few tables that keep redundant data, but then we have the added problem of maintaining this data up to date, and also Sql Express has a limit on the size of databases. We are now facing a point where we have to decide if we want to give up real time reports, or maybe cut the history to be able to have better performance. I would like to ask what is the recommended approach for this kind of systems. Also, should we start looking for third party tools/platforms? I know OLAP can be an option but can we make it work on Sql Server Express, or at least with a license that is cheap enough to distribute to thousands of deployments? Thanks

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• Why does perl crash with "*** glibc detected *** perl: munmap_chunk(): invalid pointer"?

  - by sid_com

  #!/usr/bin/env perl use warnings; use strict; use 5.012; use XML::LibXML::Reader; my $reader = XML::LibXML::Reader->new( location => 'http://www.heise.de/' ) or die $!; while ( $reader->read ) { say $reader->name; } At the end of the output from this script I get this error-messages: * glibc detected * perl: munmap_chunk(): invalid pointer: 0x0000000000b362e0 * ======= Backtrace: ========= /lib64/libc.so.6[0x7fb84952fc76] ... ======= Memory map: ======== 00400000-0053d000 r-xp 00000000 08:01 182002 /usr/local/bin/perl ... Is this due a bug? perl -V: Summary of my perl5 (revision 5 version 12 subversion 0) configuration: Platform: osname=linux, osvers=2.6.31.12-0.2-desktop, archname=x86_64-linux uname='linux linux1 2.6.31.12-0.2-desktop #1 smp preempt 2010-03-16 21:25:39 +0100 x86_64 x86_64 x86_64 gnulinux ' config_args='-Dnoextensions=ODBM_File' hint=recommended, useposix=true, d_sigaction=define useithreads=undef, usemultiplicity=undef useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef use64bitint=define, use64bitall=define, uselongdouble=undef usemymalloc=n, bincompat5005=undef Compiler: cc='cc', ccflags ='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64', optimize='-O2', cppflags='-fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include' ccversion='', gccversion='4.4.1 [gcc-4_4-branch revision 150839]', gccosandvers='' intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678 d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16 ivtype='long', ivsize=8, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8 alignbytes=8, prototype=define Linker and Libraries: ld='cc', ldflags =' -fstack-protector -L/usr/local/lib' libpth=/usr/local/lib /lib /usr/lib /lib64 /usr/lib64 /usr/local/lib64 libs=-lnsl -ldl -lm -lcrypt -lutil -lc perllibs=-lnsl -ldl -lm -lcrypt -lutil -lc libc=/lib/libc-2.10.1.so, so=so, useshrplib=false, libperl=libperl.a gnulibc_version='2.10.1' Dynamic Linking: dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-Wl,-E' cccdlflags='-fPIC', lddlflags='-shared -O2 -L/usr/local/lib -fstack-protector' Characteristics of this binary (from libperl): Compile-time options: PERL_DONT_CREATE_GVSV PERL_MALLOC_WRAP USE_64_BIT_ALL USE_64_BIT_INT USE_LARGE_FILES USE_PERLIO USE_PERL_ATOF Built under linux Compiled at Apr 15 2010 13:25:46 @INC: /usr/local/lib/perl5/site_perl/5.12.0/x86_64-linux /usr/local/lib/perl5/site_perl/5.12.0 /usr/local/lib/perl5/5.12.0/x86_64-linux /usr/local/lib/perl5/5.12.0 .

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• Ideal Multi-Developer Lamp Stack?

  - by devians

  I would like to build an 'ideal' lamp development stack. Dual Server (Virtualised, ESX) Apache / PHP on one, Databases (MySQL, PgSQL, etc) on the other. User (Developer) Manageable mini environments, or instance. Each developer instance shares the top level config (available modules and default config etc) A developer should have control over their apache and php version for each project. A developer might be able to change minor settings, ie magicquotes on for legacy code. Each project would determine its database provider in its code The idea is that it is one administrate-able server that I can control, and provide globally configured things like APC, Memcached, XDebug etc. Then by moving into subsets for each project, i can allow my users to quickly control their environments for various projects. Essentially I'm proposing the typical system of a developer running their own stack on their own machine, but centralised. In this way I'd hope to avoid problems like Cross OS code problems, database inconsistencies, slightly different installs producing bugs etc. I'm happy to manage this in custom builds from source, but if at all possible it would be great to have a large portion of it managed with some sort of package management. We typically use CentOS, so yum? Has anyone ever built anything like this before? Is there something turnkey that is similar to what I have described? Are there any useful guides I should be reading in order to build something like this?

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• Parsing Line Breaks in PHP/JavaScript

  - by Matt G

  I have a text area in my PHP application where users can enter notes in a project. Sometimes this is displayed on the page via PHP and sometimes it is displayed via javascript. The problem is, if the note is across multiple lines (i.e. the user presses enter while entering notes in the text area), it causes the JS to fail. It's fine when it's being done by the PHP. The line of code in question is: var editnotes='<textarea class="desc_text" style="width:20em;" id="notes_editor"><?php print $notes; ?></textarea>'; So, if the note is over multiple lines, the PHP builds the pager as: var editnotes='<textarea class="desc_text" style="width:20em;" id="notes_editor">This is a test note over multiple lines </textarea>'; And this obviously causes problems for the js. So my question is, what can I do to prevent this? As the code is being built by PHP before it even gets to the browser, I'm thinking that the best approach may be to parse it in the PHP so that the output is something more like this: var editnotes='<textarea class="desc_text" style="width:20em;" id="notes_editor">This is<br/>a test note<br/>over multiple lines<br/></textarea>'; Will this work? How would I do it? Thanks

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• Why won't .attr('checked','checked') set?

  - by Jason

  I have the following snippet of code (I'm using jQuery 1.4.2): $.post('/Ads/GetAdStatsRow/', { 'ad_id': id }, function(result) { $('#edit_ads_form tbody').prepend(result); $(result).find('td.select-ad input').attr('checked','checked').click(); }); Assume that the post works correctly and returns a correct pre-built <tr> with some <td>s. Here's the weirdness: the $(result).find() line finds the correct input (which is a checkbox, as it's the only input in the cell) and runs the chained click() function correctly, but it REFUSES to set the box as checked, which I need to happen. Here's a crazy twist, too... when I get super specific and change the $(result).find() line to this (the id of the checkbox): $('#ad_' + id).click(); It checks the box, but doesn't run the click() function! If I set it to $('#ad_' + id).attr('checked','checked').click(); it runs the click function as though the box were checked, but the box remains unchecked, and if I do $('#ad_' + id).click().attr('checked','checked'); it does nothing at all. What in the world could be the matter with this? I'm running out of hair.... Thanks!

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• Mysql german accents not-sensitive search in full-text searches

  - by lukaszsadowski

  Let`s have a example hotels table: CREATE TABLE `hotels` ( `HotelNo` varchar(4) character set latin1 NOT NULL default '0000', `Hotel` varchar(80) character set latin1 NOT NULL default '', `City` varchar(100) character set latin1 default NULL, `CityFR` varchar(100) character set latin1 default NULL, `Region` varchar(50) character set latin1 default NULL, `RegionFR` varchar(100) character set latin1 default NULL, `Country` varchar(50) character set latin1 default NULL, `CountryFR` varchar(50) character set latin1 default NULL, `HotelText` text character set latin1, `HotelTextFR` text character set latin1, `tagsforsearch` text character set latin1, `tagsforsearchFR` text character set latin1, PRIMARY KEY (`HotelNo`), FULLTEXT KEY `fulltextHotelSearch` (`HotelNo`,`Hotel`,`City`,`CityFR`,`Region`,`RegionFR`,`Country`,`CountryFR`,`HotelText`,`HotelTextFR`,`tagsforsearch`,`tagsforsearchFR`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_german1_ci; In this table for example we have only one hotel with Region name = "Graubünden" (please note umlaut ü character) And now I want to achieve same search match for phrases: 'graubunden' and 'graubünden' This is simple with use of MySql built in collations in regular searches as follows: SELECT * FROM `hotels` WHERE `Region` LIKE CONVERT(_utf8 '%graubunden%' USING latin1) COLLATE latin1_german1_ci This works fine for 'graubunden' and 'graubünden' and as a result I receive proper result, but problem is when we make MySQL full text search Whats wrong with this SQL statement?: SELECT * FROM hotels WHERE MATCH (`HotelNo`,`Hotel`,`Address`,`City`,`CityFR`,`Region`,`RegionFR`,`Country`,`CountryFR`, `HotelText`, `HotelTextFR`, `tagsforsearch`, `tagsforsearchFR`) AGAINST( CONVERT('+graubunden' USING latin1) COLLATE latin1_german1_ci IN BOOLEAN MODE) ORDER BY Country ASC, Region ASC, City ASC This doesn`t return any result. Any ideas where the dog is buried ?

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• SSL with private key on an HSM

  - by Jason

  I have a client-server architecture in my application that uses SSL. Currently, the private key is stored in CAPI's key store location. For security reasons, I'd like to store the key in a safer place, ideally a hardware signing module (HSM) that is built for this purpose. Unfortunately, with the private key stored on such a device, I can't figure out how to use it in my application. On the server, I am simply using the SslStream class and the AuthenticateAsServer(...) call. This method takes an X509Certificate object that has its private key loaded, but since the private key is stored in a secure (e.g. non exportable) location on the HSM, I don't know how to do this. On the client, I am using an HttpWebRequest object and then using the ClientCertificates property to add my client authentication certificate, but I have the same problem here: how do I get the private key? I know there are some HSMs that act as SSL accelerators but I don't really need an accelerator. Also, these products tend to have special integration with web servers such as IIS and Apache which I'm not using. Any ideas? The only thing I can think of would be to write my own SSL library that would allow me to hand off the signing portion of the transaction to the HSM, but this seems like a huge amount of work.

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• How do I set the default selection for NSTreeController at startup?

  - by John Gallagher

  The Background I've built a source list (similar to iTunes et al.) in my Cocoa app. I've got an NSOutlineView, with Value column bound to arrangedObjects.name key path of an NSTreeController. The NSTreeController accesses JGSourceListNode entities in a Core Data store. I have three subclasses of JGSourceListNode - JGProjectNode, JGGroupNode and JGFolderNode. I have selectedIndexPaths on NSTreeController bound to an NSArray called selectedIndexPaths in my App Delegate. On startup, I search for group nodes and if they're not found in the core data store I create them: if ([allGroupNodes count] == 0) { JGGroupNode *rootTrainingNode = [JGGroupNode insertInManagedObjectContext:context]; [rootTrainingNode setNodeName:@"TRAIN"]; JGProjectNode *childUntrainedNode = [JGProjectNode insertInManagedObjectContext:context]; [childUntrainedNode setParent:rootTrainingNode]; [childUntrainedNode setNodeName:@"Untrained"]; JGGroupNode *rootBrowsingNode = [JGGroupNode insertInManagedObjectContext:context]; [rootBrowsingNode setNodeName:@"BROWSE"]; JGFolderNode *childFolder = [JGFolderNode insertInManagedObjectContext:context]; [childFolder setNodeName:@"Folder"]; [childFolder setParent:rootBrowsingNode]; [context save:nil]; } What I Want When I start the app, I want both top level groups to be expanded and "Untrained" to be highlighted as shown: The Problem I put the following code in the applicationDidFinishLaunching: method of the app delegate: [sourceListOutlineView expandItem:[sourceListOutlineView itemAtRow:0]]; [sourceListOutlineView expandItem:[sourceListOutlineView itemAtRow:2]]; NSIndexPath *rootIndexPath = [NSIndexPath indexPathWithIndex:0]; NSIndexPath *childIndexPath = [rootIndexPath indexPathByAddingIndex:0]; [self setSelectedIndexPaths:[NSArray arrayWithObject:childIndexPath]]; but the outline view seems to not have been prepared yet, so this code does nothing. Ideally, eventually I want to save the last selection the user had made and restore this on a restart. The Question I'm sure it's possible using some crazy KVO to observe when the NSTreeController or NSOutlineView gets populated then expand the items and change the selection, but that feels clumsy and too much like a work around. How would I do this elegantly?

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• Correct escaping of delimited identifers in SQL Server without using QUOTENAME

  - by Ross Bradbury

  Is there anything else that the code must do to sanitize identifiers (table, view, column) other than to wrap them in double quotation marks and "double up" and double quotation marks present in the identifier name? References would be appreciated. I have inherited a code base that has a custom object-relational mapping (ORM) system. SQL cannot be written in the application but the ORM must still eventually generate the SQL to send to the SQL Server. All identifiers are quoted with double quotation marks. string QuoteName(string identifier) { return "\" + identifier.Replace("\"", "\"\"") + "\""; } If I were building this dynamic SQL in SQL, I would use the built-in SQL Server QUOTENAME function: declare @identifier nvarchar(128); set @identifier = N'Client"; DROP TABLE [dbo].Client; --'; declare @delimitedIdentifier nvarchar(258); set @delimitedIdentifier = QUOTENAME(@identifier, '"'); print @delimitedIdentifier; -- "Client""; DROP TABLE [dbo].Client; --" I have not found any definitive documentation about how to escape quoted identifiers in SQL Server. I have found Delimited Identifiers (Database Engine) and I also saw this stackoverflow question about sanitizing. If it were to have to call the QUOTENAME function just to quote the identifiers that is a lot of traffic to SQL Server that should not be needed. The ORM seems to be pretty well thought out with regards to SQL Injection. It is in C# and predates the nHibernate port and Entity Framework etc. All user input is sent using ADO.NET SqlParameter objects, it is just the identifier names that I am concerned about in this question. This needs to work on SQL Server 2005 and 2008.

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• merge() multiple data frames (do.call ?)

  - by Vincent

  Hi everyone, here's my very simple question: merge() only takes two data frames as input. I need to merge a series of data frames from a list, using the same keys for every merge operation. Given a list named "test", I want to do something like: do.call("merge", test). I could write some kind of loop, but I'm wondering if there's a standard or built-in way to do this more efficiently. Any advice is appreciated. Thanks! Here's a subset of the dataset in dput format (note that merging on country is trivial in this case, but that there are more countries in the original data): test <- list(structure(list(country = c("United States", "United States", "United States", "United States", "United States"), NY.GNS.ICTR.GN.ZS = c(13.5054687, 14.7608697, 14.1115876, 13.3389063, 12.9048351), year = c(2007, 2006, 2005, 2004, 2003)), .Names = c("country", "NY.GNS.ICTR.GN.ZS", "year"), row.names = c(NA, 5L), class = "data.frame"), structure(list( country = c("United States", "United States", "United States", "United States", "United States"), NE.TRD.GNFS.ZS = c(29.3459277, 28.352838, 26.9861939, 25.6231246, 23.6615328), year = c(2007, 2006, 2005, 2004, 2003)), .Names = c("country", "NE.TRD.GNFS.ZS", "year"), row.names = c(NA, 5L), class = "data.frame"), structure(list( country = c("United States", "United States", "United States", "United States", "United States"), NY.GDP.MKTP.CD = c(1.37416e+13, 1.31165e+13, 1.23641e+13, 1.16309e+13, 1.0908e+13), year = c(2007, 2006, 2005, 2004, 2003)), .Names = c("country", "NY.GDP.MKTP.CD", "year"), row.names = c(NA, 5L), class = "data.frame"))

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