http://sray.squidpower.com Just another SquidPower.com weblog Wed, 13 Jan 2010 17:09:50 +0000 http://backend.userland.com/rss092 en When attempting to run mxmlc.exe from the Flex 3 SDK: Error loading: C:\Program Files\Java\jdk1.6.0_17\jre\bin\server\jvm.dll To solve this error I created a new batch file in the FLEX3_HOME/bin directory and named it mxmlc64bit.bat with the following one line:  "%JAVA_HOME%\bin\java.exe" -Xmx384m -Dsun.io.useCanonCaches=false -jar "%~dp0\..\lib\mxmlc.jar" +flexlib="%~dp0\..\frameworks" %*  This bascially executes java to load the mxmlc.jar directly similar to ... http://sray.squidpower.com/2010/01/13/solution-to-error-running-mxmlcexe-with-windows-64bit-jvm/ This blog shows how to stream directly from the Hauppauage HD PVR H.264 Encoder to a Flash Player Client with no need to reencode the audio or video.  To accomplish this I have used a series of Windows DirectShow Filters to receive the stream from the HD PVR, send the ... http://sray.squidpower.com/2009/04/08/hauppauge-hd-pvr-streaming-to-flash-player-on-windows/ I have 6 WinTV HVR-1950 Model Category 751xx usb devices attached to one MythBuntu box recording 6 composite audio/video feeds from 6 security cameras. Whenever the machine reboots the usb devices are assigned their device filename in non-repeatable and not well defined order so that each time /dev/video0 will probably be ... http://sray.squidpower.com/2009/03/03/working-udev-rules-for-multiple-pvrusb2-and-hvr-1950-devices/ What I did to get analog tv tuner, composite, or s-video capture to work: Fresh install of mythbuntu 9.04 Extract and install the firmware files for HVR-1950: Download http://www.isely.net/downloads/fwextract.pl to ~/Desktop Insert the CD that came with your HVR-1950 (contains windows drivers) [assume it mounted as /media/cdrom0] cd ~/Desktop chmod u+x fwextract.pl ./fwextract.pl /media/cdrom0/Drivers/ sudo copy *.fw /lib/firmware Run ... http://sray.squidpower.com/2009/02/18/hauppauge-wintv-hvr-1950-on-linux-mythbuntu-mythtv-analog-digital-video-including-s-video-and-composite-inputs/ You can download a neat flash broadband speed test from http://www.speedtest.net/mini.php and put it on your own web site. It comes with server side scripts in PHP, ASP.NET, and ASP for the upload half of the test.  But what if you want it to run on your java web container server such ... http://sray.squidpower.com/2009/02/13/speedtestnet-mini-with-jsp/ As you probably know because you are searching for a solution to this error, the following Flex MXML code will not work: <HBox visible="{((booleanValue1) && (booleanValue2))}" > You will get this error message during compile: Error: The entity name must immediately follow the '&' in the entity reference. Instead you will need to use ... http://sray.squidpower.com/2008/12/17/using-boolean-and-operator-in-flex-mxml-data-binding/ I have been banging my head against the wall on this one.  I wrote an Outlook 2007 rule that was set to "run a script".  I used the Outlook integrated Visual Basic Editor (Alt+F11) to create one that would parse an email, pull out an html link for an xml ... http://sray.squidpower.com/2008/08/13/outlook-2007-vba-run-a-script-rule-stopped-working/ I was recently given the task to load xml from a Flex app hosted on our web site.  Easy task I thought, especially with the mx.rpc.http.mxml.HTTPService flex object.  Until I ran into this error: faultCode: Channel.Security.Error faultString: 'Security error accessing url' faultDetail: 'Destination: DefaultHTTP' The problem was that the flex swf was to run on our web site, ... http://sray.squidpower.com/2007/12/20/how-to-use-apache-mod_proxy-to-work-around-crossdomainxml-constraints/ Flex messaging (Flex Data Services, FDS, FDS2, now called LiveCycle) requires that the display-name entry be in the web.xml (for sure in JBoss, I assume in other Java servers).  Otherwise you will get errors similar to these: 08:04:06,018 ERROR Servlet threw load() exception java.lang.NullPointerException at ... http://sray.squidpower.com/2007/10/11/flex-messaging-requires-display-name-entry-in-webxml/ This one kind of bugs me.  If you don't create an event handler on the flex/flash NetStream object for the AsyncErrorEvent and you call the NetStream.play function you will get the following errors. Well, you will see it in the flash debug player. ERRORS: Error #2044: Unhandled AsyncErrorEvent:. text=Error #2095: flash.net.NetStream was unable ... http://sray.squidpower.com/2007/10/09/netstream-errors-if-no-ayncerrorevent-handler-specified/ Flex2 with FMS2 OK, this one caused me to waste a bit of time so here I'm going to describe the problem in detail.  Hopefully it will save someone else the trouble I had.  Basically Flex 2 defaults to AMF3 and Flash Media Server 2 will only support AMF0. On the FMS ... http://sray.squidpower.com/2007/10/09/flash-media-server-from-flex-2/ Here is how to log out a user (invalidate their java web session) assuming you have a Flex 2 front end with a Java back end. Also assuming you are using the standard J2EE JAAS authentication api to protect your web app this will log them out of the software. Create ... http://sray.squidpower.com/2007/08/28/flex-2-java-session-log-out/ Component > Install Packages... "Internet Explorer Controls" Remove Component > Import ActiveX Control "Microsoft Ineternet Controls (Version 1.1)" http://sray.squidpower.com/2006/10/11/upgrading-the-internet-explorer-active-x-controls-in-delphi-5/ I recently ran across this error message when running Flex Data Services 2 inside JBoss 4.0.3 SP1: ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/samples].[MessageBrokerServlet]:145] Allocate exception for servlet MessageBrokerServlet java.lang.RuntimeException: XPathFactory#newInstance() failed to create an XPathFactory for the default object model: http://java.sun.com/jaxp/xpath/dom with the XPathFactoryConfigurationException: javax.xml.xpath.XPathFactoryConfigurationException: No XPathFctory implementation found for the object model: http://java.sun.com/jaxp/xpath/dom The problem is with ... http://sray.squidpower.com/2006/08/22/xpath-issues-with-jboss-403-sp1/ I checked out some mxml / action script code from our CVS repository today and recieved an error when trying to compile it:  Error: Type was not found or was not a compile-time constant: <ActionScript Class Name> It seemed from the error message that someone must have 1) forgotten to add an import in action script or ... http://sray.squidpower.com/2006/08/21/actionscript-package-name-case-sensitvity/ Sometimes in a flex app that is deployed as part of a java web app you will need to know who is the currently logged in user.  To do this in Flex 1.5 you could use the flashGateway.Gateway class.  In Flex 2.0 this is done using the flex.messaging.FlexContext class (part ... http://sray.squidpower.com/2006/08/17/how-to-access-httprequest-from-flex-data-services-2/ First see related blog Directory Structure for Integrated Flex and Java Web Applications.  This blog shows how easily one can build such project using maven with sample maven.xml, project.xml, project.properties files.  The samples are for maven version 1.0.2 and not version 2.x.              <to be continued> NOTE: You will get an error ... http://sray.squidpower.com/2006/08/16/maven-build-for-flex-applications/ Requirements 1. Eclipse Web Tools Platform (WTP) from http://www.eclipse.org/webtools/, specifically the Web Standard Tools (WST) is used in this tutorial. 2. Flex 2 Builder Eclipse Plug-In from http://www.adobe.com/products/flex/flexbuilder/ Create the Eclipse Web App Project 1. Create a new project as “Web > Dynamic Web Project”. 2. Give it a descriptive project name. 3. Uncheck “Use default” and set “Directory” to the ... http://sray.squidpower.com/2006/08/15/integrating-flex-and-java-in-an-eclipse-web-app-project/ This blog describes a proposed directory structure for web applications that contain a mix of flex applications, java presentation layer code, and java integration layer code.  From this structure you could easily build projects using ant or maven (preferred).  http://sray.squidpower.com/2006/08/11/directory-structure-for-integrated-flex-and-java-web-applications/ I have found that Flex Builder 2 does not properly recognize any flex data services 2 mx components because it does not include the fds2.swc file by default in its install and thus cannot use the FDS2 controls.  To fix this problem, simply copy fds2.swc from <fds2 install folder>\flex_sdk_2\frameworks\libs to ... http://sray.squidpower.com/2006/08/10/fds-2-and-flex-builder-2/ Here is a step-by-step tutorial explaining the quickest and easiest way to expose a plain old java object (POJO) as a web service.  This example uses jboss's new web services stack (JBossWS-1.0.2.GA).  With this method you can quickly convert any java object into a web service.  For example, you could expose ... http://sray.squidpower.com/2006/08/09/quick-and-easy-pojo-web-services-with-jbossws/ I have found that the best way to run maven from inside eclipse is to create only one external tool named “Maven” and use the project_loc variable to specify the working directory in which maven will run.  Here is a step-by-step guide: 1. Run > External Tools > External Tools… 2. Right click on “Program” ... http://sray.squidpower.com/2006/08/08/maven-build-with-eclipse/ Here are the short and concise reasons why maven is a better choice than ant for project builds: Maven can run any ant scripts you need, so maven can do any thing ant does. Maven does not need to be explicitly told to compile java files or build a war or ear ... http://sray.squidpower.com/2006/08/07/maven-versus-ant/ When renaming a folder in CVS, you will need to perform the following steps: Rename the folder on the CVS server On every client that already has it checked out, change the folder name and modify the CVS/Entries file at the same level as the renamed folder every CVS/Repositories file below the renamed folder What a ... http://sray.squidpower.com/2001/08/22/renaming-folders-in-cvs/