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JDBC/OSGi and how to dynamically load drivers without explicitly stating dependencies in the bundle?

- by Chris

Hi, This is a biggie. I have a well-structured yet monolithic code base that has a primitive modular architecture (all modules implement interfaces yet share the same classpath). I realize the folly of this approach and the problems it represents when I go to deploy on application servers that may have different conflicting versions of my library. I'm dependent on around 30 jars right now and am mid-way though bnding them up. Now some of my modules are easy to declare the versioned dependencies of, such as my networking components. They statically reference classes within the JRE and other BNDded libraries but my JDBC related components instantiate via Class.forName(...) and can use one of any number of drivers. I am breaking everything up into OSGi bundles by service area. My core classes/interfaces. Reporting related components. Database access related components (via JDBC). etc.... I wish for my code to be able to still be used without OSGi via single jar file with all my dependencies and without OSGi at all (via JARJAR) and also to be modular via the OSGi meta-data and granular bundles with dependency information. How do I configure my bundle and my code so that it can dynamically utilize any driver on the classpath and/or within the OSGi container environment (Felix/Equinox/etc.)? Is there a run-time method to detect if I am running in an OSGi container that is compatible across containers (Felix/Equinox/etc.) ? Do I need to use a different class loading mechanism if I am in a OSGi container? Am I required to import OSGi classes into my project to be able to load an at-bundle-time-unknown JDBC driver via my database module? I also have a second method of obtaining a driver (via JNDI, which is only really applicable when running in an app server), do I need to change my JNDI access code for OSGi-aware app servers?

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WSMethodInvocationSetCallBack symbol not found after importing files generated from WSMakeStubs

- by racingcow

Hello, I am pretty new to Objective-C, and I am trying to write an iPhone app to call a simple web service. I used WSMakeStubs to point to my WSDL file, and it generated 4 files for me... WSGeneratedObj.h WSGeneratedObj.m CtServices2.h CtServices2.m I added only the WSGeneratedObj.h and WSGeneratedObj.m files into a new iPhone app, added in the mobile core services framework from... /Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk/System/Library/Frameworks/MobileCoreServices.framework ...and then compiled. I get the following errors... Building target “iMagioSearch2” of project “iMagioSearch2” with configuration “Debug” Checking Dependencies Ld /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator/iMagioSearch2.app/iMagioSearch2 normal i386 cd /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2 setenv MACOSX_DEPLOYMENT_TARGET 10.5 setenv PATH "/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin" /Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/gcc-4.2 -arch i386 -isysroot /Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator3.1.sdk -L/Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator -F/Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator -filelist /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/iMagioSearch2.build/Debug-iphonesimulator/iMagioSearch2.build/Objects-normal/i386/iMagioSearch2.LinkFileList -mmacosx-version-min=10.5 -framework Foundation -framework UIKit -framework CoreGraphics -framework MobileCoreServices -o /Users/Teresa/Desktop/iMagioSearch2/iMagioSearch2/build/Debug-iphonesimulator/iMagioSearch2.app/iMagioSearch2 Undefined symbols: "_kWSSOAPBodyEncodingStyle", referenced from: _kWSSOAPBodyEncodingStyle$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationCreate", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o "_kWSSOAPMethodNamespaceURI", referenced from: _kWSSOAPMethodNamespaceURI$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationUnscheduleFromRunLoop", referenced from: -[WSGeneratedObj getResultDictionary] in WSGeneratedObj.o -[WSGeneratedObj unscheduleFromRunLoop:mode:] in WSGeneratedObj.o "_WSMethodResultIsFault", referenced from: -[WSGeneratedObj isFault] in WSGeneratedObj.o "_kWSMethodInvocationResult", referenced from: _kWSMethodInvocationResult$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationSetProperty", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o "_WSMethodInvocationScheduleWithRunLoop", referenced from: -[WSGeneratedObj getResultDictionary] in WSGeneratedObj.o -[WSGeneratedObj scheduleOnRunLoop:mode:] in WSGeneratedObj.o "_kWSHTTPExtraHeaders", referenced from: _kWSHTTPExtraHeaders$non_lazy_ptr in WSGeneratedObj.o "_WSMethodInvocationSetParameters", referenced from: -[WSGeneratedObj setParameters:values:names:] in WSGeneratedObj.o "_WSMethodInvocationSetCallBack", referenced from: -[WSGeneratedObj createInvocationRef:methodName:protocol:style:soapAction:methodNamespace:] in WSGeneratedObj.o ld: symbol(s) not found collect2: ld returned 1 exit status Does anyone know of anything I can check or why I might be getting this error? Thanks, David

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WPF ListView GridView DisplayMemberBinding Center alignin content

- by Bigginn

I'm trying to center align data in a ListView/Gridview where I use DisplayMemberBinding. This is (partially) how my gridview looks: <ListView> <ListView.View> <GridView> <GridView.Columns> <GridViewColumn DisplayMemberBinding="{Binding Path=Timi}" Width="Auto"> <GridViewColumnHeader Content="Tími" Click="GridViewColumnHeader_Click" ></GridViewColumnHeader> </GridViewColumn> </GridView.Columns> </GridView> </ListView.View> </ListView> I tried to use CellTemplate like explained on this page http://msdn.microsoft.com/en-us/library/system.windows.controls.gridviewcolumn.celltemplate.aspx but it didn't work and then later I read somewhere that one should never use cellTemplate and DisplayMemberBinding together. So the question is : How do I center the gridview data when I use DisplayMemberBinding to bind the data to the gridview? Thanks in advance.

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iPhone app rejection for using ICU (Unicode extensions)

- by nickbit

I received the following mail form Apple, considering my application: *Thank you for submitting your update to ??µ??es?a to the App Store. During our review of your application we found it is using private APIs, which is in violation of the iPhone Developer Program License Agreement section 3.3.1; "3.3.1 Applications may only use Documented APIs in the manner prescribed by Apple and must not use or call any private APIs." While your application has not been rejected, it would be appropriate to resolve this issue in your next update. The following non-public APIs are included in your application: u_isspace ubrk_close ubrk_current ubrk_first ubrk_next ubrk_open If you have defined methods in your source code with the same names as the above mentioned APIs, we suggest altering your method names so that they no longer collide with Apple's private APIs to avoid your application being flagged with future submissions. Please resolve this issue in your next update to ??µ??es?a. Sincerely, iPhone App Review Team* The functions mentioned in this mail are used in the ICU library (International Components for Unicode). Although my app is not rejected at this point, I don't feel very secure for the future of my app, because it relies heavily on the Unicode protocol and on this components in particular. Another thing is that I do not call these functions directly, but they are called by a custom 'sqlite' build (with FTS3 extensions enabled). Am I missing something here? Any suggestions?

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Imap cyrillic mail

- by atredis

I use the mailsystem.NET library to put a message in my inbox. This is my code: Imap4Client imap = new Imap4Client(); imap.ConnectSsl("imap.gmail.com", 993); imap.Login(mylogin, mypassword); Mailbox mails; mails = imap.SelectMailbox("INBOX"); Message commomMessage = new Message(); commomMessage.From = new Address("someAddress", "someName"); commomMessage.To.Add(mylogin, "myName"); commomMessage.Subject = "someSubject"; commomMessage.BodyHtml.Text = "?????? ???";//or some cyrillic text commomMessage.Date = DateTime.Now; mails.Append(commomMessage); When I open my gmail inbox, I see this mail, but the body contains ????? ??? rather than "?????? ???". If commomMessage.BodyHtml.Text contains only Latin characters, there is no problem.

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What options to parse a DTD using PHP

- by Chadwick

I need to parse DTDs using PHP and am hoping there's a simple library to help out. Each DTD has numerous <!ENTITY... and <!-- Comment... elements, which I need to act upon. Note that I do not need to validate anything against these DTDs, simply parse them as data files themselves. A few options I've looked at: James Clarke's SD, which is an option of last resort, but I'd like to avoid the complexity of building/installing/configuring code external to PHP. I'm not sure it's even possible in my situation. PEAR has an XML_DTD_Parser, which requires installing/configuring PEAR and a number of pear modules, which I'm also not sure is possible, and would rather avoid. Has anyone used it with success? PHP XML Classes has the class_path_parser, which another site suggested, but it fails to read ENTITY elements. It appears to be using PHP's built in XML parsing capabilities, which use EXPAT. PHP's DOMDocument will validate against a DTD, so must be able to read them, though I don't see how to get at the DTD parser directly at first glance.

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Confused about Ajax, Basic XMLHTTPRequest

- by George

I'm confused about the basics of Ajax. Right now I'm just trying to build a basic Ajax request using plain JavaScript to better understand how things work (as opposed to using Jquery or another library). First off, do you always need to pass a parameter or can you just retrieve data? In its most basic form, could I have an html document (located on the same server) that just has plain text, and another html document retrieve that text and load it on to the page? So I have fox.html with just text that says "The quick brown fox jumped over the lazy dog." and I want to pull in that text into ajax.html on load. I have the following on ajax.html <script type="text/javascript"> function createAJAX() { var ajax = new XMLHttpRequest(); ajax.open('get','fox.html',true); ajax.send(null); ajax = ajax.responseText; return(ajax); } document.write(createAJAX()); </script> This currently writes nothing when I load the page.

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Rendering LaTeX on third-party websites?

- by A. Rex

There are some sites on the web that render LaTeX into some more readable form, such as Wikipedia, some Wordpress blogs, and MathOverflow. They may use images, MathML, jsMath, or something like that. There are other sites on the web where LaTeX appears inline and is not rendered, such as the arXiv, various math forums, or my email. In fact, it is quite common to see an arXiv paper's abstract with raw LaTeX in it, e.g. this paper. Is there a plugin available for Firefox, or would it be possible to write one, that renders LaTeX within pages that do not provide a rendering mechanism themselves? (The LaTeX would be enclosed within dollar signs, e.g. $\pi$. See the arXiv link above.) Some notes: It may be impossible to render some of the code, because authors often copy-paste code directly from their source TeX files, which may contain things like "\cite{foo}" or undefined commands. These should be left alone. This question is a repost of a question from MathOverflow that was closed for not being related to math. There is one answer there, which is helpful, but perhaps Stack Overflow can provide better answers. I program a lot, but Javascript is not my specialty, so comments along the lines of "look at this library" are not particularly helpful to me (but may be to others).

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XML comments on delegate declared events

- by Matt Whitfield

I am visiting some old code, and there are quite a few events declared with delegates manually rather than using EventHandler<T>, like this: /// <summary> /// Delegate for event Added /// </summary> /// <param name="index">Index of the item</param> /// <param name="item">The item itself</param> public delegate void ItemAdded(int index, T item); /// <summary> /// Added is raised whenever an item is added to the collection /// </summary> public event ItemAdded Added; All well and good, until I come to use sandcastle to document the library, because it then can't find any XML comments for the private Added field that is generated by the event declaration. I want to try and sort that out, but what I would like to do is either: Get sandcastle to ignore the auto-generated private field without telling it to ignore all private fields entirely or Get XML comments generated for the private field Is there any way of achieving this without re-factoring the code to look like this: /// <summary> /// Delegate for event <see cref="Added"/> /// </summary> /// <param name="index">Index of the item</param> /// <param name="item">The item itself</param> public delegate void ItemAdded(int index, T item); /// <summary> /// Private storage for the event firing delegate for the <see cref="Added"/> event /// </summary> private ItemAdded _added; /// <summary> /// Added is raised whenever an item is added to the collection /// </summary> public event ItemAdded Added { add { _added += value; } remove { _added -= value; } }

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aio_read from file error on OS X

- by Pyetras

The following code: #include <fcntl.h> #include <unistd.h> #include <stdio.h> #include <aio.h> #include <errno.h> int main (int argc, char const *argv[]) { char name[] = "abc"; int fdes; if ((fdes = open(name, O_RDWR | O_CREAT, 0600 )) < 0) printf("%d, create file", errno); int buffer[] = {0, 1, 2, 3, 4, 5}; if (write(fdes, &buffer, sizeof(buffer)) == 0){ printf("writerr\n"); } struct aiocb aio; int n = 2; while (n--){ aio.aio_reqprio = 0; aio.aio_fildes = fdes; aio.aio_offset = sizeof(int); aio.aio_sigevent.sigev_notify = SIGEV_NONE; int buffer2; aio.aio_buf = &buffer2; aio.aio_nbytes = sizeof(buffer2); if (aio_read(&aio) != 0){ printf("%d, readerr\n", errno); }else{ const struct aiocb *aio_l[] = {&aio}; if (aio_suspend(aio_l, 1, 0) != 0){ printf("%d, suspenderr\n", errno); }else{ printf("%d\n", *(int *)aio.aio_buf); } } } return 0; } Works fine on Linux (Ubuntu 9.10, compiled with -lrt), printing 1 1 But fails on OS X (10.6.6 and 10.6.5, I've tested it on two machines): 1 35, readerr Is this possible that this is due to some library error on OS X, or am I doing something wrong?

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Boost class/struct serialization to byte array

- by Dave18

does boost library provide functions to pack the class/struct data into a byte array to shorten the length of serialized data? Currently i'm using stringstream to get the serialized data, for example - struct data { std::string s1; std::string s2; int i; }; template <typename Archive> void serialize(Archive &ar, data &d, const unsigned int version) { ar & d.s1; ar & d.s2; ar & d.i; } int main() { data d; d.s1 = "This is my first string"; d.s2 = "This is my second string"; d.i = 10000; std::stringstream archive_stream; boost::archive::text_oarchive archive(archive_stream); archive.operator <<(d); } How would i use a byte array instead of stringstream for data?

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code igniter codeigniter question, making anchor load page containing data from referenced row in DB

- by thrice801

Hi, Im trying to learn the code igniter library and object oriented php in general and have a question. Ok so Ive gotten as far as making a page which loads all of the rows from my database and in there, Im echoing an anchor tag which is a link to the following structure. [code]echo anchor("videos/video/$row-video_id", $row-video_title);[/code] So, I have a class called Videos which extends the controller, within that class there is index and video, which is being called correctly (when you click on the video title, it sends you to videos/video/5 for example, 5 being the primary key of the table im working with. So basically all Im trying to do is pass that 5 back to the controller, and then have the particular video page output the particular rows data from the videos table. My function in my controller for video looks like this - [code] function video() { $data['main_content'] = 'video'; $data['video_title'] = 'test'; $this-load-view('includes/template', $data); } [/code] So ya, basically test should be instead of test, a returned value of a query which says get in the table "videos", the row with the video_id of "5", and make $data['video_title'] = value of video_title in database... Should have this figured out by now but dont, any help would be appreciated!

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Creating a service (SERVICE_ACCEPT_SESSIONCHANGE)

- by Ron

Hi there, I am trying to create a service following the example documented in the link below: http://msdn.microsoft.com/en-us/library/bb540475(v=VS.85).aspx What I am interested in is to be able to catch user "lock" and "unlock" workstation events. Using the code on from the example provided, I modified the following: Line 15: Original: VOID WINAPI SvcCtrlHandler( DWORD ); Modified: DWORD WINAPI SvcCtrlHandler( DWORD, DWORD, LPVOID, LPVOID ); Line 141: Original: gSvcStatusHandle = RegisterServiceCtrlHandler( SVCNAME, SvcCtrlHandler); Modified: gSvcStatusHandle = RegisterServiceCtrlHandlerEx( SVCNAME, SvcCtrlHandler, NULL); Line 244: Original: SvcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP; Modified: gSvcStatus.dwControlsAccepted = SERVICE_ACCEPT_STOP|SERVICE_ACCEPT_SESSIONCHANGE; Line 266: Original: VOID WINAPI SvcCtrlHandler( DWORD dwCtrl ) { // Handle the requested control code. switch(dwCtrl) { case SERVICE_CONTROL_STOP: ReportSvcStatus(SERVICE_STOP_PENDING, NO_ERROR, 0); // Signal the service to stop. SetEvent(ghSvcStopEvent); ReportSvcStatus(gSvcStatus.dwCurrentState, NO_ERROR, 0); return; case SERVICE_CONTROL_INTERROGATE: break; default: break; } }` Modified: DWORD WINAPI SvcCtrlHandler( DWORD dwControl, DWORD dwEventType, LPVOID lpEventData, LPVOID lpContext ) { DWORD dwErrorCode = NO_ERROR; switch(dwControl) { case SERVICE_CONTROL_STOP: ReportSvcStatus(SERVICE_STOP_PENDING, NO_ERROR, 0); // Signal the service to stop. SetEvent(ghSvcStopEvent); ReportSvcStatus(gSvcStatus.dwCurrentState, NO_ERROR, 0); break; case SERVICE_CONTROL_INTERROGATE: break; case SERVICE_CONTROL_SESSIONCHANGE: ReportSvcStatus(gSvcStatus.dwCurrentState, NO_ERROR, 0); break; default: break; } return dwErrorCode; } With the changes above, my service compiled and install fine. But when I try to start my service on my Windows 2000 machine, it does not start properly (it will be stuck on the "starting" status) Can anyone please advise? Thank you in advance, Ron

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Why does setting this member in C fail?

- by Lee Crabtree

I'm writing a Python wrapper for a C++ library, and I'm getting a really weird when trying to set a struct's field in C. If I have a struct like this: struct Thing { PyOBJECT_HEAD unsigned int val; }; And have two functions like this: static PyObject* Thing_GetBit(Thing* self, PyObject* args) { unsigned int mask; if(!PyArg_ParseTuple(args, "I", &mask) Py_RETURN_FALSE; if((self->val & mask) != 0) Py_RETURN_TRUE; Py_RETURN_FALSE; } static PyObject* Thing_SetBit(Thing* self, PyObject* args) { unsigned int mask; bool on; if(!PyArg_ParseTuple(args, "Ii", &mask, &on)) Py_RETURN_FALSE; if(on) thing->val |= mask; else thing->val &= ~mask; Py_RETURN_TRUE; } Python code that calls the first method works just fine, giving back the value of the struct member. Calls to the SetBit method give an error about an object at address foo accessing memory at address bar, which couldn't be "written". I've poked around the code, and it's like I can look at the value all I want, both from C and Python, but the instant I try to set it, it blows up in my face. Am I missing something fundamental here?

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Finding a picture in a picture with java?

- by tarrasch

what i want to to is analyse input from screen in form of pictures. I want to be able to identify a part of an image in a bigger image and get its coordinates within the bigger picture. Example: would have to be located in And the result would be the upper right corner of the picture in the big picture and the lower left of the part in the big picture. As you can see, the white part of the picture is irrelevant, what i basically need is just the green frame. Is there a library that can do something like this for me? Runtime is not really an issue. What i want to do with this is just generating a few random pixel coordinates and recognize the color in the big picture at that position, to recognize the green box fast later. And how would it decrease performance, if the white box in the middle is transparent? The question has been asked several times on SO as it seems without a single answer. I found i found a solution at http://werner.yellowcouch.org/Papers/subimg/index.html . Unfortunately its in C++ and i do not understand a thing. Would be nice to have a Java implementation on SO.

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Fatal error when using FILE* in Windows from DLL

- by AlannY

Hi there. Recently, I found a problem with Visual C++ 2008 compiler, but using minor hack avoid it. Currently, I cannot use the same hack, but problem exists as in 2008 as in 2010 (Express). So, I've prepared for you 2 simple C file: one for DLL, one for program: DLL (file-dll.c): #include <stdio.h> __declspec(dllexport) void print_to_stream (FILE *stream) { fprintf (stream, "OK!\n"); } And for program, which links this DLL via file-dll.lib: Program: #include <stdio.h> __declspec(dllimport) void print_to_stream (FILE *stream); int main (void) { print_to_stream (stdout); return 0; } To compile and link DLL: cl /LD file-dll.c To compile and link program: cl file-test.c file-dll.lib When invoking file-test.exe, I got the fatal error (similar to segmentation fault in UNIX). As I said early, I had that the same problem before: about transferring FILE* pointer to DLL. I thought, that it may be because of compiler mismatch, but now I'm using one compiler for everything and it's not the problem. ;-( What can I do now? UPD: I've found solution: cl /LD /MD file-dll.c cl /MD file-test.c file-dll.lib The key is to link to dynamic library, but (I did not know it) by default it links staticaly and (hencefore) error occurs (I see why). P.S. Thanks for patience.

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How can I round money values to the nearest $5.00 interval?

- by Frank Developer

I have an Informix-SQL based Pawnshop app which calculates an estimate of how much money should be loaned to a customer, based on the weight and purity of gold. The minimum the pawnshop lends is $5.00. The pawnshop employee will typically lend amounts which either ends with a 5 or 0. examples: 10, 15, 20, 100, 110, 125, etc. They do this so as to not run into shortage problems with $1.00 bills. So, if for example my system calculates the loan should be: $12.49, then round it to $10, $12.50 to $15.00, $13.00 to $15.00, $17.50 to $20.00, and so on!..The employee can always override the rounded amount if necessary. Is it possible to accomplish this within the instructions section of a perform screen or would I have to write a cfunc and call it from within perform?.. Are there any C library functions which perform interval rounding of money values?.. On another note, I think the U.S. Government should discontinue the use of pennies so that businesses can round amounts to the nearest nickel, it would save so much time and weight in our pockets!

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Microsoft Detours - DetourUpdateThread?

- by pault543

Hi, I have a few quick questions about the Microsoft Detours Library. I have used it before (successfully), but I just had a thought about this function: LONG DetourUpdateThread(HANDLE hThread); I read elsewhere that this function will actually suspend the thread until the transaction completes. This seems odd since most sample code calls: DetourUpdateThread(GetCurrentThread()); Anyway, apparently this function "enlists" threads so that, when the transaction commits (and the detours are made), their instruction pointers are modified if they lie "within the rewritten code in either the target function or the trampoline function." My questions are: When the transaction commits, is the current thread's instruction pointer going to be within the DetourTransactionCommit function? If so, why should we bother enlisting it to be updated? Also, if the enlisted threads are suspended, how can the current thread continue executing (given that most sample code calls DetourUpdateThread(GetCurrentThread());)? Finally, could you suspend all threads for the current process, avoiding race conditions (considering that threads could be getting created and destroyed at any time)? Perhaps this is done when the transaction begins? This would allow us to enumerate threads more safely (as it seems less likely that new threads could be created), although what about CreateRemoteThread()? Thanks, Paul For reference, here is an extract from the simple sample: // DllMain function attaches and detaches the TimedSleep detour to the // Sleep target function. The Sleep target function is referred to // through the TrueSleep target pointer. BOOL WINAPI DllMain(HINSTANCE hinst, DWORD dwReason, LPVOID reserved) { if (dwReason == DLL_PROCESS_ATTACH) { DetourTransactionBegin(); DetourUpdateThread(GetCurrentThread()); DetourAttach(&(PVOID&)TrueSleep, TimedSleep); DetourTransactionCommit(); } else if (dwReason == DLL_PROCESS_DETACH) { DetourTransactionBegin(); DetourUpdateThread(GetCurrentThread()); DetourDetach(&(PVOID&)TrueSleep, TimedSleep); DetourTransactionCommit(); } return TRUE; }

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Why is OpenSubKey() returning null on my Win 7 64 bit system?

- by BrMcMullin

Has anyone seen OpenSubKey() and other Microsoft.Win32 registry functions return null on 64 bit systems when 32 bit registry keys are under Wow6432node in the registry? I'm working on a unit testing framework that makes a call to OpenSubKey() from the .net library. My dev system is a Win 7 64 bit environment with VS 2008 SP1 and the Win 7 SDK installed. The application we're unit testing is a 32 bit application, so the registry is virtualized under HKLM\Software\Wow6432node. When we call: Registry.LocalMachine.OpenSubKey( @"Software\MyCompany\MyApp\" ); Null is returned, however explicitly stating to look here works: Registry.LocalMachine.OpenSubKey( @"Software\Wow6432node\MyCompany\MyApp\" ); From what I understand this function should be agnostic to 32 bit or 64 bit environments and should know to jump to the virtual node. Even stranger is the fact that the exact same call inside a compiled and installed version of our application is running just fine on the same system and is getting the registry keys necessary to run; which are also being placed in HKLM\Software\Wow6432node. Any suggestions? Thanks in advance!

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S3 Backup Memory Usage in Python

- by danpalmer

I currently use WebFaction for my hosting with the basic package that gives us 80MB of RAM. This is more than adequate for our needs at the moment, apart from our backups. We do our own backups to S3 once a day. The backup process is this: dump the database, tar.gz all the files into one backup named with the correct date of the backup, upload to S3 using the python library provided by Amazon. Unfortunately, it appears (although I don't know this for certain) that either my code for reading the file or the S3 code is loading the entire file in to memory. As the file is approximately 320MB (for today's backup) it is using about 320MB just for the backup. This causes WebFaction to quit all our processes meaning the backup doesn't happen and our site goes down. So this is the question: Is there any way to not load the whole file in to memory, or are there any other python S3 libraries that are much better with RAM usage. Ideally it needs to be about 60MB at the most! If this can't be done, how can I split the file and upload separate parts? Thanks for your help. This is the section of code (in my backup script) that caused the processes to be quit: filedata = open(filename, 'rb').read() content_type = mimetypes.guess_type(filename)[0] if not content_type: content_type = 'text/plain' print 'Uploading to S3...' response = connection.put(BUCKET_NAME, 'daily/%s' % filename, S3.S3Object(filedata), {'x-amz-acl': 'public-read', 'Content-Type': content_type})

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How to change font color inside nav element?

- by user2924752

I have a element and I want to change the color of the links within it, but all other links on my page are styled using the following CSS: a:link { color:#22b14c; text-decoration:none; } and here is the nav: <nav id="Nav"> <a href="index.html">Home</a> | <a href="Gallery.html">Library</a> | <a href="Contact.html">Contact</a> | <a href="About.html">About</a> </nav> and the nav css: #Nav { margin-top: 20px; background-color: #000000; color: #f2f2f2; font-size: 40px; font-family: "Calibri"; text-align: center; } I tried a span inside the nav element but that didn't work. How can I change the color for these links only inside the element?

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FLTK in Cygwin using Eclipse (Linking errors)

- by qpingu

I have this assignment due that requires the usage of FLTK. The code is given to us and it should compile straight off of the bat, but I am having linking errors and do not know which other libraries I need to include. I currently have "opengl32", "fltk_gl", "glu32", and "fltk" included (-l), each of which seem to reduce the number of errors. I compiled FLTK using make with no specified options. Including all of the produced library files doesn't fix the problem, and I'm convinced that it's just some Windows specific problem. Compile log: **** Build of configuration Debug for project CG5 **** make all Building target: CG5.exe Invoking: Cygwin C++ Linker g++ -o"CG5.exe" ./src/draw_routines.o ./src/gl_window.o ./src/my_shapes.o ./src/shape.o ./src/shapes_ui.o ./src/tesselation.o -lopengl32 -lfltk_z -lfltk_gl -lglu32 -lfltk /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x197): undefined reference to `_SelectPalette@12' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x1a7): undefined reference to `_RealizePalette@4' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x1fe): undefined reference to `_glDrawBuffer@4' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x20d): undefined reference to `_glReadBuffer@4' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x23a): undefined reference to `_glGetIntegerv@8' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x2c3): undefined reference to `_glOrtho@48' /usr/lib/gcc/i686-pc-cygwin/3.4.4/../../../libfltk_gl.a(Fl_Gl_Window.o):Fl_Gl_Window.cxx:(.text+0x2f3): undefined reference to `_SwapBuffers@4' ...and lots more Thanks a ton for the help. EDIT: These first few lines are obviously OpenGL related, although I'm still not sure what additional libraries need to be included.

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Error // Usage: rails new APP_PATH [options] // when running 'rails server'

- by madphill

Background info: I'm using GIT to get a repository of a project with Ruby files in it. The project lives in my SITES folder under home directory on my Mac. I have Ruby: 1.8.7 I have just upgraded Rails to: 3.0.3 All I am trying to accomplish is to be able to render localhost.com:3000 in my browser of the GIT project i've already downloaded so I can work on it locally. I ran the command 'rails server' and was returned the message below:: Usage: rails new APP_PATH [options] Options: [--skip-gemfile] # Don't create a Gemfile -m, [--template=TEMPLATE] # Path to an application template (can be a filesystem path or URL) -d, [--database=DATABASE] # Preconfigure for selected database (options: mysql/oracle/postgresql/sqlite3/frontbase/ibm_db) # Default: sqlite3 -O, [--skip-active-record] # Skip Active Record files -J, [--skip-prototype] # Skip Prototype files -T, [--skip-test-unit] # Skip Test::Unit files [--dev] # Setup the application with Gemfile pointing to your Rails checkout -r, [--ruby=PATH] # Path to the Ruby binary of your choice # Default: /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby -G, [--skip-git] # Skip Git ignores and keeps -b, [--builder=BUILDER] # Path to an application builder (can be a filesystem path or URL) [--edge] # Setup the application with Gemfile pointing to Rails repository Runtime options: -f, [--force] # Overwrite files that already exist -s, [--skip] # Skip files that already exist -p, [--pretend] # Run but do not make any changes -q, [--quiet] # Supress status output Rails options: -h, [--help] # Show this help message and quit -v, [--version] # Show Rails version number and quit Description: The 'rails new' command creates a new Rails application with a default directory structure and configuration at the path you specify. Example: rails new ~/Code/Ruby/weblog This generates a skeletal Rails installation in ~/Code/Ruby/weblog. See the README in the newly created application to get going.

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Testing Async downloads with ASIHTTPRequest

- by Baishampayan Ghose

I am writing a simple library using ASIHTTPRequest where I am fetching URLs in an async manner. My problem is that the main function that I have written to test my lib exits before the async calls are finished. I am very new to Obj C and iPhone development, can anyone suggest a good way to wait before all the requests are finished in the main function? Currently, my main function looks like this - int main(int argc, char *argv[]) { NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; IBGApp *ibgapp = [[IBGApp alloc] init]; IBGLib *ibgl = [[IBGLib alloc] initWithUsername:@"joe" andPassword:@"xxx"]; // The two method calls below download URLs async. [ibgl downloadURL:@"http://yahoo.com/" withRequestDelegate:ibgapp andRequestSelector:@selector(logData:)]; [ibgl downloadURL:@"http://google.com/" withRequestDelegate:ibgapp andRequestSelector:@selector(logData:)]; [pool release]; return 0; // I reach here before the async calls are done. } So what is the best way to wait till the async calls are done? I tried putting sleep, but obviously doesn't work.

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Problem with Zend Project

- by Fincha

Hello, i write a script and it works perfectly, on my local server. I have uploaded it on my server and now I getting this Problem Parse error: syntax error, unexpected '{' in /homepages/46/d319011794/htdocs/suche/public/index.php on line 18 an here is my index.php <?php error_reporting(E_ALL || E_STRICT); define('APPLICATION_PATH', realpath(dirname(__FILE__)) . '/../application'); set_include_path( APPLICATION_PATH . '/../library' . PATH_SEPARATOR . '../application/models' . PATH_SEPARATOR . get_include_path() ); require_once 'Zend/Loader.php'; Zend_Loader::registerAutoload(); new App_Connect(); try { //Line 18 require '../application/bootstrap.php'; } catch(Exception $exception) { echo "<html><body>Fehler beim bootstraping"; if(defined('APPLICATION_ENVIROMENT') && APPLICATION_EVIROMENT != 'production') { echo "<br><br>" . $exception->getMessage() . "<br>" . "<div align='left'>Stack Trace: " . "<pre> " . $exception->getTraceAsString() . "</pre></div>"; } echo "</body></html>"; exit(1); } Zend_Controller_Front::getInstance()->dispatch(); This is a Zend Project... so may be some one know what to do...

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