[jboss-as7-dev] Bundling content with deployments

[Ales Justin]

OK, I have this implemented.

But I now get this

14:15:27,001 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/jboss-seam-jpa]] (MSC service thread 1-3) Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener: java.lang.IllegalArgumentException: Null path
	at org.jboss.vfs.VFS.getChild(VFS.java:207) [jboss-vfs-3.0.0.GA.jar:3.0.0.GA]
	at org.jboss.vfs.VFS.getChild(VFS.java:193) [jboss-vfs-3.0.0.GA.jar:3.0.0.GA]
	at org.jboss.vfs.VFS.getChild(VFS.java:174) [jboss-vfs-3.0.0.GA.jar:3.0.0.GA]
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.getRoot(VFSScanner.java:64) [jboss-seam-int.jar:6.0.0.GA]
	at org.jboss.seam.integration.jbossas.vfs.VFSScanner.scanResources(VFSScanner.java:151) [jboss-seam-int.jar:6.0.0.GA]
	at org.jboss.seam.deployment.StandardDeploymentStrategy.scan(StandardDeploymentStrategy.java:105) [jboss-seam.jar:6.0.0.GA]
	at org.jboss.seam.init.Initialization.create(Initialization.java:122) [jboss-seam.jar:6.0.0.GA]
	at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34) [jboss-seam.jar:6.0.0.GA]

Where I don't see how URI::getPath is null.

http://anonsvn.jboss.org/repos/jbossas/projects/jboss-seam-int/tags/6.0.0.GA/jbossas/src/main/java/org/jboss/seam/integration/jbossas/vfs/VFSScanner.java

This is how the URL is gained:
            Enumeration<URL> urlEnum = getDeploymentStrategy().getClassLoader().getResources(resourceName);
            while (urlEnum.hasMoreElements())
            {
               URL url = urlEnum.nextElement();
               VirtualFile root = getRoot(url, resourceName.lastIndexOf('/') > 0 ? 2 : 1);
and the call to VFS::getChild

   protected VirtualFile getRoot(URL url, int parentDepth) throws IOException
   {
      log.trace("Root url: " + url);

      VirtualFile top;
      try {
         top = VFS.getChild(url);

Any idea where this null path comes from?
Or how to avoid / fix it?

-Ales

On Jun 2, 2011, at 10:22 PM, David M. Lloyd wrote:

> I was chatting with Ales about his issues trying to incorporate a 
> seam-int module into a deployment, such that every deployment (which 
> bundles seam) would get a copy of those classes added to it.
> 
> So I thought I'd cover some options for a general approach to solving 
> this issue.
> 
> First, it is important to note that such content should NOT be made into 
> a static module.  Modules are only for JARs which only have a single 
> instance in the app server.
> 
> I think a good possible approach would be to define a resource root in a 
> (different) module which contains the JAR file itself as an opaque 
> resource, and then reference that resource when constructing the deployer.
> 
> In this example I'll have a fictional module called 
> "org.jboss.ales.deployer".
> 
> The module.xml for this module should look something like this:
> 
> <module xmlns="urn:jboss:module:1.0" name="org.jboss.ales.deployer">
> 
>     <resources>
>         <resource-root path="bundled"/>
>         <!-- Insert resources here -->
>     </resources>
> 
>     <dependencies>
>         <module name="org.jboss.as.controller"/>
>         <module name="org.jboss.as.server"/>
>         ...other modules here...
>     </dependencies>
> </module>
> 
> Then we deposit the nested seam-int JAR into the "bundled" subdirectory 
> of our module through some sort of build.xml modification, taking care 
> to use a predictable name for the JAR (as opposed to the long Maven name).
> 
> Having done this, code from the org.jboss.ales.deployer module can now 
> reliably acquire this file path:
> 
> File jarFile = new File(getClass().getResource("/seam-int.jar").toURI());
> 
> The File can then make its way to the deployment as a resource root, 
> thus creating a copy of the content in each deployment which our 
> deployer wishes to add it to.
> 
> Questions/comments?
> -- 
> - DML
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