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  • Java: Reading a pdf file from URL into Byte array/ByteBuffer in an applet.

    - by Pol
    I'm trying to figure out why this particular snippet of code isn't working for me. I've got an applet which is supposed to read a .pdf and display it with a pdf-renderer library, but for some reason when I read in the .pdf files which sit on my server, they end up as being corrupt. I've tested it by writing the files back out again. I've tried viewing the applet in both IE and Firefox and the corrupt files occur. Funny thing is, when I trying viewing the applet in Safari (for Windows), the file is actually fine! I understand the JVM might be different, but I am still lost. I've compiled in Java 1.5. JVMs are 1.6. The snippet which reads the file is below. public static ByteBuffer getAsByteArray(URL url) throws IOException { ByteArrayOutputStream tmpOut = new ByteArrayOutputStream(); URLConnection connection = url.openConnection(); int contentLength = connection.getContentLength(); InputStream in = url.openStream(); byte[] buf = new byte[512]; int len; while (true) { len = in.read(buf); if (len == -1) { break; } tmpOut.write(buf, 0, len); } tmpOut.close(); ByteBuffer bb = ByteBuffer.wrap(tmpOut.toByteArray(), 0, tmpOut.size()); //Lines below used to test if file is corrupt //FileOutputStream fos = new FileOutputStream("C:\\abc.pdf"); //fos.write(tmpOut.toByteArray()); return bb; } I must be missing something, and I've been banging my head trying to figure it out. Any help is greatly appreciated. Thanks. Edit: To further clarify my situation, the difference in the file before I read then with the snippet and after, is that the ones I output after reading are significantly smaller than they originally are. When opening them, they are not recognized as .pdf files. There are no exceptions being thrown that I ignore, and I have tried flushing to no avail. This snippet works in Safari, meaning the files are read in it's entirety, with no difference in size, and can be opened with any .pdf reader. In IE and Firefox, the files always end up being corrupted, consistently the same smaller size. I monitored the len variable (when reading a 59kb file), hoping to see how many bytes get read in at each loop. In IE and Firefox, at 18kb, the in.read(buf) returns a -1 as if the file has ended. Safari does not do this. I'll keep at it, and I appreciate all the suggestions so far.

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  • Use PHP to create a DOC file on a Unix Box based on an HTML webform selection

    - by Gerald Oakham
    Hello, I have an HTML file which contains a webform with multiple questions which have a YES / NO responses. If the question has a YES answer, I would like a predefined ( per question ) section of text to be written to a DOC file on the server, but only AFTER the submit button has been pressed ( this way, if the user changes their mind and changes an answer form YES to NO, I won't have to re-write the doc ). When the user has clicked Submit, The file should be presented as a download. Any Ideas

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  • How do you read from a file into an array of struct?

    - by Thomas.Winsnes
    I'm currently working on an assignment and this have had me stuck for hours. Can someone please help me point out why this isn't working for me? struct book { char title[25]; char author[50]; char subject[20]; int callNumber; char publisher[250]; char publishDate[11]; char location[20]; char status[11]; char type[12]; int circulationPeriod; int costOfBook; }; void PrintBookList(struct book **bookList) { int i; for(i = 0; i < sizeof(bookList); i++) { struct book newBook = *bookList[i]; printf("%s;%s;%s;%d;%s;%s;%s;%s;%s;%d;%d\n",newBook.title, newBook.author, newBook.subject, newBook.callNumber,newBook.publisher, newBook.publishDate, newBook.location, newBook.status, newBook.type,newBook.circulationPeriod, newBook.costOfBook); } } void GetBookList(struct book** bookList) { FILE* file = fopen("book.txt", "r"); struct book newBook[1024]; int i = 0; while(fscanf(file, "%s;%s;%s;%d;%s;%s;%s;%s;%s;%d;%d", &newBook[i].title, &newBook[i].author, &newBook[i].subject, &newBook[i].callNumber,&newBook[i].publisher, &newBook[i].publishDate, &newBook[i].location, &newBook[i].status, &newBook[i].type,&newBook[i].circulationPeriod, &newBook[i].costOfBook) != EOF) { bookList[i] = &newBook[i]; i++; } /*while(fscanf(file, "%s;%s;%s;%d;%s;%s;%s;%s;%s;%d;%d", &bookList[i].title, &bookList[i].author, &bookList[i].subject, &bookList[i].callNumber, &bookList[i].publisher, &bookList[i].publishDate, &bookList[i].location, &bookList[i].status, &bookList[i].type, &bookList[i].circulationPeriod, &bookList[i].costOfBook) != EOF) { i++; }*/ PrintBookList(bookList); fclose(file); } int main() { struct book *bookList[1024]; GetBookList(bookList); } I get no errors or warnings on compile it should print the content of the file, just like it is in the file. Like this: OperatingSystems Internals and Design principles;William.S;IT;741012759;Upper Saddle River;2009;QA7676063;Available;circulation;3;11200 Communication skills handbook;Summers.J;Accounting;771239216;Milton;2010;BF637C451;Available;circulation;3;7900 Business marketing management:B2B;Hutt.D;Management;741912319;Mason;2010;HF5415131;Available;circulation;3;1053 Patient education rehabilitation;Dreeben.O;Education;745121511;Sudbury;2010;CF5671A98;Available;reference;0;6895 Tomorrow's technology and you;Beekman.G;Science;764102174;Upper Saddle River;2009;QA76B41;Out;reserved;1;7825 Property & security: selected essay;Cathy.S;Law;750131231;Rozelle;2010;D4A3C56;Available;reference;0;20075 Introducing communication theory;Richard.W;IT;714789013;McGraw-Hill;2010;Q360W47;Available;circulation;3;12150 Maths for computing and information technology;Giannasi.F;Mathematics;729890537;Longman;Scientific;1995;QA769M35G;Available;reference;0;13500 Labor economics;George.J;Economics;715784761;McGraw-Hill;2010;HD4901B67;Available;circulation;3;7585 Human physiology:from cells to systems;Sherwood.L;Physiology;707558936;Cengage Learning;2010;QP345S32;Out;circulation;3;11135 bobs;thomas;IT;701000000;UC;1006;QA7548;Available;Circulation;7;5050 but when I run it, it outputs this: OperatingSystems;;;0;;;;;;0;0 Internals;;;0;;;;;;0;0 and;;;0;;;;;;0;0 Design;;;0;;;;;;0;0 principles;William.S;IT;741012759;Upper;41012759;Upper;;0;;;;;;0;0 Saddle;;;0;;;;;;0;0 River;2009;QA7676063;Available;circulation;3;11200;lable;circulation;3;11200;;0;;;;;;0;0 Communication;;;0;;;;;;0;0 Thanks in advance, you're a life saver

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  • What is the command line syntax to embed MPlayer in an app window in OS X?

    - by Chip
    I know the window ID, and I'm trying stuff like: mplayer -ontop -slave -quiet -wid 471165040 /t.mov mplayer -ontop -slave -quiet --window=471165040 /t.mov but nothing is working. (I know the window ID is correct) Otherwise, mplayer CLI is working great in its own window, just can't get it to play embedded. Can anyone point me to a syntax example of embedding mplayer in an app in OS X? thanks!

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  • Could I centralize batch files more efficiently?

    - by PeanutsMonkey
    I am new to the world of batch scripting so please forgive what may appear as basic questions. I am learning as I get assigned different jobs and I am a huge proponent of automation where possible. I have several batch files that perform several tasks. Each of these files had their paths hard-coded e.g. c:\temp. d:\data, etc in the batch file. Initially I moved these to a text file I could call from a batch file e.g. for /f "tokens=1,2 delims==" %%R in (config.txt) do ( if %%R==bdata set bdata=%%S if %%R==cdata set cdata=%%S ) The config.txt file contains these values bdata=c:\temp cdata=d:\data I realized that each time I would need to create a new variable, I would need to update the config.txt file as well the config.bat files. I decided I would move all the values to just the config.bat file as follows set bdata=c:\temp set cdata=d:\data I then updated each of the existing batch files to call the variables rather than the hard-coded paths. I also added the following lines of code to each batch file except config.bat. The only additional line added to the config.bat file is @echo off. @echo off setlocal enableextensions enabledelayedexpansion call config.bat I then have another batch file that centralizes calling all the batch files in sequence. The name of this batch file is start.bat. The reason I am using start /wait is because there have been instances of where the delete.bat runs before compress.bat has had an opportunity to finish. start /wait compress.bat start /wait validate.bat start /wait delete.bat Questions Is this the best way to centralize values and if not, what is a better way? Do I need to specify setlocal enableextensions enabledelayedexpansion in all the existing batch files? Do all the batch files have to have @echo off or is it sufficient for just the config.bat file? Is start /wait the best way to call multiple files? Can I pass values from one batch file to another using the said command? All the batch files have different functions e.g. move, delete, etc however use %%a or %%b. Is this okay? For example The validate.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == "" move /Y "%bdata%\%%~xa" "%bdata%\%done%" and the delete.bat file has the code for %%a in (%bdata%\*.*) do if "%%~xa" == ".txt" del "%%a"

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  • How can I detect when a file download has completed in ASP.NET?

    - by Alexis
    I have a popup window that displays "Please wait while your file is being downloaded". This popup also executes the code below to start the file download. How can I close the popup window once the file download has completed? I need some way to detect that the file download has completed so I can call self.close() to close this popup. System.Web.HttpContext.Current.Response.ClearContent(); System.Web.HttpContext.Current.Response.Clear(); System.Web.HttpContext.Current.Response.ClearHeaders(); System.Web.HttpContext.Current.Response.ContentType = fileObject.ContentType; System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", string.Concat("attachment; filename=", fileObject.FileName)); System.Web.HttpContext.Current.Response.WriteFile(fileObject.FilePath); Response.Flush(); Response.End();

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  • Can a BufferedImage be written to file any format?

    - by ncoder
    Is it correct that if we have a BufferedImage object in java, we could potentially write it out in ANY format using ImageIO.write (if we have a Writer object for the same)? I tried writing a BufferedImage object into a jpg file, it outputted an empty image file however when i tried writing it in to a png file, it worked fine.

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  • How do you sink input and output to a text file in R?

    - by Jeromy Anglim
    How do you sink both the console input and the console output to a text file? Take the following code: sink("temp.txt") 1:10 sink() It will write a text file that looks like this: [1] 1 2 3 4 5 6 7 8 9 10 But how do I create a text file that looks like this: > 1:10 [1] 1 2 3 4 5 6 7 8 9 10 I've looked at ?sink and searched R-help.

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  • Mongrel Cluster on Ubuntu Server Karmic

    - by trobrock
    I am trying to get mongrel cluster working on my Ubuntu Server Karmic box in preparation to setup Capistrano. I've been trying to get the two to work all day and finally decided to completely remove Capistrano and see if I can just get Mongrel Cluster to work. I ran this to install mongrel cluster: gem install mongrel mongrel_cluster Everything installed fine, when I change into my app's directory... # mongrel_rails -bash: mongrel_rails: command not found I can run it from its install location: # /var/lib/gems/1.8/bin/mongrel_rails Usage: mongrel_rails <command> [options] Available commands are: ... It lets me build the cluster configuration file fine, but when I run the clister:start command: # /var/lib/gems/1.8/bin/mongrel_rails cluster::start starting port 8000 /usr/lib/ruby/1.8/rubygems/custom_require.rb:31: command not found: mongrel_rails start -d -e production -p 8000 -P tmp/pids/mongrel.8000.pid -l log/mongrel.8000.log starting port 8001 /usr/lib/ruby/1.8/rubygems/custom_require.rb:31: command not found: mongrel_rails start -d -e production -p 8001 -P tmp/pids/mongrel.8001.pid -l log/mongrel.8001.log starting port 8002 /usr/lib/ruby/1.8/rubygems/custom_require.rb:31: command not found: mongrel_rails start -d -e production -p 8002 -P tmp/pids/mongrel.8002.pid -l log/mongrel.8002.log It seems it isnt calling it from the right directory after that command, what can I do to fix this? I tried setting the path previously when trying to set up Capistrano, but the path didnt stay set when Capistrano used ssh to run the commands.

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  • How to get list of declared functions with their data from php file?

    - by ermac2014
    I need to get list of functions with their contents (not only the function name) from php file. I tried to use regex but it has lots of limitations. it doesn't parse all types of functions. for example it fails if the function has if and for loop statements. in details: I have around 100 include files. each file has number of declared functions. some files has functions duplicated in other files. so what I want is to get list of all functions from specific file then put this list inside an array then I will be using array unique in order to remove the duplicates. I read about tokenizer but I really have no idea how to make it grab the declared function with its data. all I have is this: function get_defined_functions_in_file($file) { $source = file_get_contents($file); $tokens = token_get_all($source); $functions = array(); $nextStringIsFunc = false; $inClass = false; $bracesCount = 0; foreach($tokens as $token) { switch($token[0]) { case T_CLASS: $inClass = true; break; case T_FUNCTION: if(!$inClass) $nextStringIsFunc = true; break; case T_STRING: if($nextStringIsFunc) { $nextStringIsFunc = false; $functions[] = $token[1]; } break; // Anonymous functions case '(': case ';': $nextStringIsFunc = false; break; // Exclude Classes case '{': if($inClass) $bracesCount++; break; case '}': if($inClass) { $bracesCount--; if($bracesCount === 0) $inClass = false; } break; } } return $functions; } unfortunately, this function lists only the function names.. what I need is to list the whole declared function with its structure.. so any ideas? thanks in advance..

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  • are there any negative implications of sourcing a javascript file that does not actually exist?

    - by dreftymac
    If you do script src="/path/to/nonexistent/file.js" in an HTML file and call that in a browser, and there are no dependencies or resources anywhere else in the HTML file that expect the file or code therein to actually exist, is there anything inherently bad-practice about doing this? Yes, it is an odd question. The rationale is the developer is dealing with a CMS that allows custom (self-contained) javascript files to be provided in certain circumstances. The problem is the CMS is not very flexible when it comes to creating conditional includes for javascript. Therefore it is easier to just make references to the self-contained js files regardless of whether they are actually at the specified path. Since no errors are displayed to the user, should this practice be considered a viable option?

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  • Cygwin Cruisecontrol cannot execute commands

    I'm having what I hope to be a simple problem. However, it's had me stumped all day. I'm working with cruisecontrol in windows, being set up through Cygwin. I have some CC experience in the linux platform and much of what I'm doing is very similar. However, most any command I try to execute in the config.xml file's Schedule section is giving an error. Here's the exception: ExecBuilder - Could not execute command: /cygdrive/d/Program\ Files/Subversion/bin/svn net.sourceforge.cruisecontrol.CruiseControlException: Encountered an IO exception while attempting to execute 'net.sourceforge.cruisecontrol.builders.ExecScript@b80f1c'. CruiseControl cannot continue. at net.sourceforge.cruisecontrol.builders.ScriptRunner.runScript(ScriptRunner.java:133) Here are some examples of commands I've tried to run which give this type of error. <exec command="${CCLoc}/projects/${project.name}/IOSdllScript"/> -Runs a script that I tested outside of the cruisecontrol.bat and it runs. Includes #!/bin/sh as the first line <exec command="${CCLoc}/projects/${project.name}/EmptyFile"/> -Essentially an empty text file, proving that the problem had nothing to do with my script. <exec command="/cygdrive/d/Program\ Files/Subversion/bin/svn" args="cleanup" workingdir="${svndir}"/> -Trys svn cleanup on a directory. I double checked the pathing and spelling. One command that I tested worked and didn't give this error. That command was touch. <exec command="touch" args="ABC.txt"/> I'm not sure why only touch seems to work and nothing else does. Thank you for your help.

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  • What does class_eval <<-"end_eval", __FILE__, __LINE__ mean in Ruby?

    - by viatropos
    I'm learning how to use class_eval in modules (I'm somewhat familiar with class_eval) and came across this helpful class in resource_controller. In there they have things like this: class_eval <<-"end_eval", __FILE__, __LINE__ def #{block_accessor}(*args, &block) unless args.empty? && block.nil? args.push block if block_given? @#{block_accessor} = [args].flatten end @#{block_accessor} end end_eval What does __FILE__ and __LINE__ do in that context? I know __FILE__ references the current file, but what does that whole thing do exactly? Don't really know how to search for that :).

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  • Why would fopen fail to open a file that exists?

    - by void
    I'm on Windows XP using Visual Studio 6 (yes I know it's old) building/maintaining a C++ DLL. I'm encountered a problem with fopen failing to open an existing file, it always returns NULL. I've tried: Checking errno and _doserrno by setting both to zero and then checking them again, both remain zero, and thus GetLastError() reports no errors. I know fopen isn't required to set errno when it encounters an error according to a C standard. Hardcoding the file path, which are not relative. Tried on another developers machine which the same result. The really strange thing is CreateFile works and the file can be read with ReadFile. We believe this works in a release build, however we are also seeing some very odd behaviour in other areas of the application and we're not sure if this is related. The code is below, I don't see anything odd it looks quite standard to me. The source file hasn't changed for just under half a year. HRESULT CDataHandler::LoadFile( CStdString szFilePath ) { //Code FILE* pFile; if ( NULL == ( pFile = fopen( szFilePath.c_str(), "rb") ) ) { return S_FALSE; } //More code }

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  • Access 2007 file picker, replaces all rows with the same choice.

    - by SqlStruggle
    This code is from an Access 2007 project I've been struggling with. The actual mean part is the part where I should put something like "update only current form" DoCmd.RunSQL "Update Korut Set [PikkuKuva]=('" & varFile & "') ;" Could someone please help me with this?` If I use it now, it updates all the tables with the same file picked. Heres the whole code. ' This requires a reference to the Microsoft Office 11.0 Object Library. Dim fDialog As Office.FileDialog Dim varFile As Variant Dim filePath As String ' Set up the File dialog box. Set fDialog = Application.FileDialog(msoFileDialogFilePicker) With fDialog ' Allow the user to make multiple selections in the dialog box. .AllowMultiSelect = False ' Set the title of the dialog box. .Title = "Valitse Tiedosto" ' Clear out the current filters, and then add your own. .Filters.Clear .Filters.Add "All Files", "*.*" ' user picked at least one file. If the .Show method returns ' False, the user clicked Cancel. If .Show = True Then ' Loop through each file that is selected and then add it to the list box. For Each varFile In .SelectedItems DoCmd.SetWarnings True DoCmd.RunSQL "Update Korut Set [PikkuKuva]=('" & varFile & "') ;" Next Else MsgBox "You clicked Cancel in the file dialog box." End If End With

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  • In eclipse, how can I create a shortcut for an existing command that has no shortcut binding in the

    - by Visus Zhao
    In eclipse, the behavior of Ctrl+F11 is determined by preference config, and you could have either "Run last launch in history" or "Run current resource/editor" option available. But I'd like to have both of them at the same time, with an additional shortcut (e.g. Alt+F11). But eclipse doesn't provide the two commands in "key preference". Can I create a new shortcut that links to the "Run last launched" or "Run current editor"? It'd be even better if i could make a shortcut to show the launch history(the arrow beside the green little run button) Is this possible? could anyone give a quick hint on where to find resources to implement it? P.S.: Maven plugin's "Add dependency" common is another good candidate.

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