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• PDF form submission

  - by Jeff

  I have a PDF form (made in Acrobat) that has button to submit via HTTP. What I want to do it have a PHP script that will take the PDF form and e-mail it to me via attachment. What I don't want: --PDF Submit via e-mail button. This requires webmail users to save the pdf and attach it, and is just too confusing for most users. I want one-click and done. --Submit via mailto:[email protected]. Does the same thing as above. If there's a pdf on the server, I know how to use PHP's mail() function to e-mail it to someone. What I don't know how to do is process the PDF once someone hits Submit within the PDF. Does that make sense? Thanks, Jeff

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• jQuery and Canvas.toDataURL

  - by Jeff

  I'm working on a script, and a small part of that involves taking a canvas and converting it to a downloadable image. To do this, I do: var thumb_jpeg = thumbnail.toDataURL("image/jpeg"); $("#" + options.dest).attr('src',thumb_jpeg); ...where thumbnail is a canvas tag and options.dest is the name of an img id. This code works perfectly in Chrome, but when I try it in Firefox, Firebug throws up this error: Security error" code: "1000 var thumb_jpeg = thumbnail.toDataURL("image/jpeg"); I would link to the whole script, but everything is hosted on my computer. Does anyone have any idea what this might mean? Thanks! Jeff

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• JTable row filters updates

  - by Jeff Storey

  Is there a way to tell a JTable's row filter that it should update itself to display the filtered data? I'm currently using the fireTableDataChanged method in the AbstractTableModel but the underlying data for the table isn't actually changing, so this seems like it might be wasteful. The way my filter works is to check if data in the table is in some other list and only display it if it is in that list. So that other list changed and I need to tell the filter to refresh itself. Is fireTableDataChanged the correct way to do this? thanks, Jeff

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• Netbeans 6.8 groovy files in src/main/java

  - by Jeff Storey

  I have a new netbeans maven/groovy project, and I actually prefer to mix my java and groovy files in src/main/java and src/test/java (I find it easier to navigate this way and my pom reflects this configuration). However, when I have my project setup this way in Netbeans 6.8, it always shows the generated-sources folder in error. The stubs generated from groovy files in src/test/java can't be opened by netbeans and given an error that they can't be parsed. However, in windows explorer the files are in tact. Netbeans can run the project but it continues to prompt me that some files are in error (even though I know they're not). It's like netbeans isn't refreshing itself. Any thoughts on how to fix this? thanks, Jeff

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• How to find a coding buddy

  - by Lirik

  I was reading Jeff Atwood's blog and he mentioned that he was suffering from code-paralysis (he called it analysis paralysis, but I feel like it's also code paralysis) when he didn't have a code buddy: http://www.codinghorror.com/blog/ Unfortunately I think that Jeff has set the bar a bit high, because he only works with developers who are really amazing. The only reason really amazing developers would work with me is if I was really amazing too, but sometimes I don't feel that amazing... the only thing I feel is that if I had a coding buddy I could be amazing :). I'm working on a project and I don't have many friends that are programmers, let alone friends that have time to spend on extracurricular activities. Jeff seems to have been able to find like-minded people that are actually willing to work together. I feel like I'm in a code-paralysis stage too and I need some coding buddies, where would I find some? How would I approach them?

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• Why does the ASP.Net Web Forms model "suck"?

  - by Daniel Magliola

  I've heard Jeff Atwood, Joel Spolsky, and many other legendary people talk about how the ASP.Net Web Forms model sucks. (So this question is kind of directed to them, hopefully Jeff is reading) Now, I highly respect their opinion, given their background and expertise, but truth be told, I absolutely LOVE ASP.Net. I think the model is brilliant, and it sucks if you have no idea what you're doing, but once you understand how to control ViewState, when to use handlers instead of pages, etc, it is generations ahead of all the other models. So every time I hear someone complain about how it sucks, I can't help ask the same question... Why? What is it that's so bad about it? I appreciate all opinions. I'm assuming there's probably a post at Jeff's blog talking about this too...

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• JNI unsigned char to byte array

  - by Jeff Storey

  I'm working with a C++ library that stores image byte data in an array of unsigned characters. My jni function returns a jByteArray (which then gets converted to a BufferedImage on the java side), but I'm not sure how to fill the jByteArray from the unsigned character array (if it is possible). Can anyone provide a snippet for this last part to basically do this: // size is the size of the unsigned char array const int size = 100; unsigned char* buf = new unsigned char[size]; // buf gets passed to another library here to be populated jbyteArray bArray = env->NewByteArray(size); // now how do I get the data from buf to bArray? Thanks, Jeff

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• ItemFileWriteStore: how to change the data?

  - by jeff porter

  Hi, I'd like to change the data in my dojo.data.ItemFileWriteStore. Currently I have... var rawdataCacheItems = [{'cachereq':'14:52:03','name':'Test1','cacheID':'3','ver':'7'}]; var cacheInfo = new dojo.data.ItemFileWriteStore({ data: { identifier: 'cacheID', label: 'cacheID', items: rawdataCacheItems } }); I'd like to make a XHR request to get a new JSON string of the data to render. What I can't work out is how to change the data in the "items" held by ItemFileWriteStore. Can anyone point me in the correct direction? Thanks Jeff Porter

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• groovy call private method in Java super class

  - by Jeff Storey

  I have an abstract Java class MyAbstractClass with a private method. There is a concrete implementation MyConcreteClass. public class MyAbstractClass { private void somePrivateMethod(); } public class MyConcreteClass extends MyAbstractClass { // implementation details } In my groovy test class I have class MyAbstractClassTest { void myTestMethod() { MyAbstractClass mac = new MyConcreteClass() mac.somePrivateMethod() } } I get an error that there is no such method signature for somePrivateMethod. I know groovy can call private methods but I'm guessing the problem is that the private method is in the super class, not MyConcreteClass. Is there a way to invoke a private method in the super class like this (other than using something like PrivateAccessor)? thanks Jeff

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• Eclipse Java Profiler

  - by Jeff Storey

  I know this has been asked before, but I have not found anything recent that really gives a good answer. I'm trying to find a free profiler for eclipse that works well. I would like a graphical breakdown of execution time in particular. I've tried TPTP but have had no luck at all with GUI apps (it took almost a minute for a GUI app to start and was virtually unusable on screen - it uses a lot of Java OpenGL, so I'm not sure if it has to do with that). I liked YourKit, but unfortunately it's not free. I even tried switching to NetBeans since they have a built in profiler. If anyone has had success with particular profilers (even if it was TPTP), I'd like to hear about it. Any recommendations would be greatly appreciated. thanks, Jeff

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• Application Server or Lightweight Container?

  - by Jeff Storey

  Let me preface this by saying this is not an actual situation of mine but I'm asking this question more for my own knowledge and to get other people's inputs here. I've used both Spring and EJB3/JBoss, and for the smaller types of applications I've built, Spring (+Tomcat when needed) has been much simpler to use. However, when scaling up to larger applications that require things like load balancing and clustering, is Spring still a viable solution? Or is it time to turn to a solution like EJB3/JBoss when you start to get big enough to need that? I'm not sure if I've scoped the problem well enough to get a good answer, so please let me know. Thanks, Jeff

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• Nibernate, DynamicProxy, and Spring AOP

  - by jeff

  We have an Spring IOC managed application that uses NHibernate in its persistence layer. We have use the Spring AOP and understand its terminology and capabilities. We have some investment in Spring proxies. Now, we want to add a PropertyChangedMixin and a ValidatorInterceptor (not nhibernate validator, but based on Spring validation) onto our NHibernate managed objects. I've looked at the hooks for NHiberate IInterceptor and EventListeners and that gives me a place to apply the desired proxies. If I use the Spring proxies is it going to play nice with the existing nhibernate proxies. We don't lazy load. From the simple nhibernate stuff the benefits of DynamicProxy look appealing. I can go either way, but I'd like to hear suggestions. Thanks, jeff

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• JavaEE Application Server or Lightweight Container?

  - by Jeff Storey

  Let me preface this by saying this is not an actual situation of mine but I'm asking this question more for my own knowledge and to get other people's inputs here. I've used both Spring and EJB3/JBoss, and for the smaller types of applications I've built, Spring (+Tomcat when needed) has been much simpler to use. However, when scaling up to larger applications that require things like load balancing and clustering, is Spring still a viable solution? Or is it time to turn to a solution like EJB3/JBoss when you start to get big enough to need that? I'm not sure if I've scoped the problem well enough to get a good answer, so please let me know. Thanks, Jeff

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• Perl Regex Output only characters that can be used as unix filename

  - by Jeff Balinsky

  I wrote a basic mp3 organizing script for myself. I know the power of regex but I suck with the syntax I have the line $outname = "/home/jebsky/safehouse/music/mp3/" . $inital . "/" . $artist . "/" . $year ." - ". $album . "/" . $track ." - ". $artist ." - ". $title . ".mp3"; All I want is a regex to change $outname so that any non safe for filename characters get replaced by an underscore Thanks Jeff

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• How to customize OOTB workflow emails

  - by Jeff

  How can I make simple format-type customizations to ALL OOTB workflow related emails? I have found that many pre-Sharepoint 2010 posts indicated that OOTB workflow emails are in fact 'alerts', and therefore OOTB workflow emails could be customized using the same technique which is: making a customized version of alerttemplates.xml and even using IAlertNotifyHandler to intercept all alert emails. However, it seems that OOTB workflow and workflow task emails are not affected by changes to my customalerttemplates.xml file (which I do follow with stsadm updatealerttemplates, iisreset, and timer service restart). This is what I used as a guide to customize alerts: http://blogs.msdn.com/b/sharepointdeveloperdocs/archive/2007/12/14/how-to-customizing-alert-emails-using-ialertnotificationhandler.aspx What am I missing? Is there a separate template for workflow emails? Can OOTB workflow emails be customized? Thanks! Jeff

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• Grails/Spring HttpServletRequest synchronization

  - by Jeff Storey

  I was writing a simple Grails app and I have a spot in a gsp where one of my java beans in modified. <g:each in="${myList}" status="i" var="myVar"> // if the user performs some view action, update one of the myVar elements </g:each> This works, but I don't think it's quite threadsafe. myList is an http request variable but in cases of pages that use ajax (or other client side manipulations), it is possible for two threads to be modifying the same request scope variable The Spring AbstractController class provides a setSynchronizeOnSession method. Does grails provide any equivalent functionality? If not, what's the best way to protect this non-threadsafe mutation? thanks, Jeff

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• Replacing Resource files on new BlackBerry app version

  - by Jeff

  Hello, I am maintaining an existing BlackBerry application (implemented as a MIDlet). The application contains a number of data files that get bundled with the app as resources. Some of these data files need to be updated for a new version of the app. When the user goes to install a new version of the application (via URL of Jad file), it prompts them with the following message "Persistent data exists for the application. Would you like to retain this data? " If the user selects "Yes", it looks like the app continues to use the old resource files. This is so surprising to me. First of all, am I losing my mind or will an upgrade really not overwrite existing resource files? Is there any way I can force it to? Thanks, Jeff

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• How do I chain forms in Access? (pass values between them)

  - by jeff porter

  Hello, I'm using Access 2007 and have a data model like this... Passenger - Bookings - Destinations So 1 Passenger can have Many Bookings, each for 1 Destinations. My problem... I can create a form to allow the entry of Passenger details, but I then want to add a NEXT button to take me to a form to enter the details of the Booking (i.e. just a simple drop list of the Destinations). I've added the NEXT button and it has the events of RunCommand SaveRecord OpenForm Destination_form BUT, I cant work out how to pass accross to the new form the primary key of the passenger that was just entered (PassengerID). I'd really like to have just one form, and that allow the entry of the Passenger details and the selection of a Destination, that then creates the entries in the 2 Tables (Passenger & Bookings), but I can't get that to work either. Can anyone help me out please? Thanks Jeff Porter

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• Delphi VirtualStringTree - Check for Duplicates?

  - by Jeff

  Hello S.O! Yeah, I know I post a lot of questions, but thats because I either need assurance that I am doing it right, what I am doing wrong, or if I am totally clueless, and cant find anything in the documentation. Anyways, I am trying to check for duplicate nodes. Here is how I would want to do it: Loop thru my nodes, and compare each single node's text (record), but if I got many nodes, wouldnt that be too time and memory consuming? Would there be a better approach for this? Thanks! - Jeff.

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• Create a buffered image from rgb pixel values

  - by Jeff Storey

  I have an integer array of RGB pixels that looks something like: pixels[0] = <rgb-value of pixel(0,0)> pixels[1] = <rgb-value of pixel(1,0)> pixels[2] = <rgb-value of pixel(2,0)> pixels[3] = <rgb-value of pixel(0,1)> ...etc... And I'm trying to create a BufferedImage from it. I tried the following: BufferedImage img = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB); img.getRaster().setPixels(0, 0, width, height, pixels); But the resulting image has problems with the color bands. The image is unclear and there are diagonal and horizontal lines through it. What is the proper way to initialize the image with the rgb values? thanks, Jeff

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• creating a wordpress dev enviornment and uploading to production

  - by Jeff

  I am an old school java developer who is considering a using wordpress. I'm used to developing locally on my PC (yeah yeah not even a mac) and then ftping my files up to a production environment on a remote server. My high level review of wordpress gives me the impression that typically there is no concept of lower environments and that all updates occur directly in production. Is this the case? If not, can someone explain how one goes about uploading the files to a web site? Thanks, Jeff

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• GlassFish cluster-targeted jdbc is not enabled

  - by Jin Kwon

  I have a GlassFish cluster. When I tried to add node and a instance, DAS saids a bunch of error messages telling Resource [ jdbc/xxxx ] of type [ jdbc ] is not enabled [#|2012-11-14T12:07:04.318+0900|SEVERE|glassfish3.1.2|javax.enterprise.system.core.com.sun.enterprise.v3.server|_ThreadID=2803;_ThreadName=Thread-2;|java.lang.StackOverflowError at java.io.FileOutputStream.writeBytes(Native Method) at java.io.FileOutputStream.write(FileOutputStream.java:318) at java.io.BufferedOutputStream.write(BufferedOutputStream.java:122) at java.io.PrintStream.write(PrintStream.java:480) at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221) at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291) at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295) at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141) at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229) at java.util.logging.StreamHandler.flush(StreamHandler.java:242) at java.util.logging.ConsoleHandler.publish(ConsoleHandler.java:106) at java.util.logging.Logger.log(Logger.java:522) at com.sun.logging.LogDomains$1.log(LogDomains.java:372) at java.util.logging.Logger.doLog(Logger.java:543) at java.util.logging.Logger.log(Logger.java:607) at com.sun.enterprise.resource.deployer.JdbcResourceDeployer.deployResource(JdbcResourceDeployer.java:117) at org.glassfish.javaee.services.ResourceProxy.create(ResourceProxy.java:90) at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:507) at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:455) at javax.naming.InitialContext.lookup(InitialContext.java:411) at javax.naming.InitialContext.lookup(InitialContext.java:411) at com.sun.appserv.connectors.internal.api.ResourceNamingService.lookup(ResourceNamingService.java:221) the JDBC Resource is ok and targeted with the cluster. I've installed the JDBC driver on the new node. Can anybody help?

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• can't Remote desktop to windows XP, blaming the server side

  - by Jin

  After rebooting my work PC (windows XP sp3) this Wednesday (thank to Microsoft Tuesday), I found that I can't remote desktop to my work PC from home (with VPN to company). I have been remote-desktop to work for years and I am really surprised since connectivity is not the problem, so I brought up wireshark to sniff the packets. I can see after TCP handshake, client sent X.224 Connection Request 03 00 00 13 0e e0 00 00 00 00 00 01 00 08 00 03 00 00 00 server sent X.224 Connection Confirm. 03 00 00 0b 06 d0 00 00 12 34 00 According to "MS-RDPBCGR", the official spec on RDP, the server should include Negotiation Response in the "Connection Confirm" message but it didn't. It's empty. I googled a lot but didn't find any clue on why server did that. By the way, I used the same remote desktop client and can connect to other windows XP PC. Here are a couple of pieces of information that may help to give a clue: Since TCP handshake (server port being 3389), I believe the svchost service is actually running. going to control panel -- system window, --- "Remote" tab, the remote desktop is indeeded checked and it states that my username is allowed. according to the packet capture, client didn't even get a chance to tell server what user was trying to logon. Yes, the progress bar showed up a few seconds and then it went back to the "Remote desktop Connection" window again. Searched "windowsupdate.log", didn't find any appearance of the word "remote".

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• Recovering data from mangodb raw files

  - by Jin Chen

  we use mongodb for our database and set the replset(two servers), but we mistakenly deleted some raw files that under /path/to/dbdata on both servers, after we used tool to get back the deleted files(we ran the extundelete on both server and mix the result together), like database.1, database.2 etc. we could not start the mongod, it raised the following error when starting mongod or executing mongodump, here is the console output: root@mongod:/opt/mongodb# mongodump --repair --dbpath /opt/mongodb -d database_production Thu Aug 21 16:22:43.258 [tools] warning: repair is a work in progress Thu Aug 21 16:22:43.258 [tools] going to try and recover data from: database_production Thu Aug 21 16:22:43.262 [tools] Assertion failure isOk() src/mongo/db/pdfile.h 392 0xde1b01 0xda42fd 0x8ae325 0x8ac492 0x8bd8e0 0x8c1c51 0x80e345 0x80e607 0x80e6a4 0x6db92a 0x6dc1ff 0x6e0db9 0xd9e45e 0x6ccdc7 0x7f499d856ead 0x6ccc29 mongodump(_ZN5mongo15printStackTraceERSo+0x21) [0xde1b01] mongodump(_ZN5mongo12verifyFailedEPKcS1_j+0xfd) [0xda42fd] mongodump(_ZNK5mongo7Forward4nextERKNS_7DiskLocE+0x1a5) [0x8ae325] mongodump(_ZN5mongo11BasicCursor7advanceEv+0x82) [0x8ac492] mongodump(_ZN5mongo8Database19clearTmpCollectionsEv+0x160) [0x8bd8e0] mongodump(_ZN5mongo14DatabaseHolder11getOrCreateERKSsS2_Rb+0x7b1) [0x8c1c51] mongodump(_ZN5mongo6Client7Context11_finishInitEv+0x65) [0x80e345] mongodump(_ZN5mongo6Client7ContextC1ERKSsS3_b+0x87) [0x80e607] mongodump(ZN5mongo6Client12WriteContextC1ERKSsS3+0x54) [0x80e6a4] mongodump(_ZN4Dump7_repairESs+0x3a) [0x6db92a] mongodump(_ZN4Dump6repairEv+0x2df) [0x6dc1ff] mongodump(_ZN4Dump3runEv+0x1b9) [0x6e0db9] mongodump(_ZN5mongo4Tool4mainEiPPc+0x13de) [0xd9e45e] mongodump(main+0x37) [0x6ccdc7] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xfd) [0x7f499d856ead] mongodump(__gxx_personality_v0+0x471) [0x6ccc29] assertion: 0 assertion src/mongo/db/pdfile.h:392 Thu Aug 21 16:22:43.271 dbexit: Thu Aug 21 16:22:43.271 [tools] shutdown: going to close listening sockets... Thu Aug 21 16:22:43.271 [tools] shutdown: going to flush diaglog... Thu Aug 21 16:22:43.271 [tools] shutdown: going to close sockets... Thu Aug 21 16:22:43.272 [tools] shutdown: waiting for fs preallocator... Thu Aug 21 16:22:43.272 [tools] shutdown: closing all files... Thu Aug 21 16:22:43.273 [tools] closeAllFiles() finished Thu Aug 21 16:22:43.273 [tools] shutdown: removing fs lock... Thu Aug 21 16:22:43.273 dbexit: really exiting now my env: 1) Debian 3.2.35-2 x86_64(it's a XEN virtual machine) 2) mongodb 2.4.6 and we did not delete the .0 and .ns files we tried to create a new database with the same name and copy these db.ns and db.2, db.3 to the new db, we still met the same error. is there any way to check the valid of raw .ns and datafiles, and how to recover the database?

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• A simple Volume Replication Tool for large data set?

  - by Jin

  I'm looking for a solution to the following: Server A (Site A) - Win 2008 R2 - approx 10TB (15TB max) of data - well over 8 million files Server B (Site B) - Win 2008 R2 I want to assynchronously replicate Server A's volume to a volume on Server B for data redundancy. Something that I can say to my users, "go here for data" when/if Server A goes belly up due to machine problems, disaster, etc. Windows 2008 R2 does have DFS, but microsoft does not apparently support this large of a dataset (or more accurately, more than 8 million files - according to the docs I could find). I also looked at Veritas Volume Replication, but this seems almost too much as I would also require Veritas Volume Manager. There are numerous "back-up" software which makes a 1-1 backup, which would be ok, but since it will be transfering over internet, I'd like something that has compression during transfer like DFS has. Does anyone have any suggestions regarding this?

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