JavaArchive to VirtualFile

[thomas.diesler]

Is there a way to transform a JavaArchive to a VirtualFile in-memory (i.e. without going to /tmp)

Currently I do this

   private void validateBundleArchive(Archive<?> archive) throws Exception
   {
      String archiveName = archive.getName();
      int dotIndex = archiveName.lastIndexOf(".");
      if (dotIndex > 0)
         archiveName = archiveName.substring(0, dotIndex);
      
      // [TODO] Can this be done in memory?
      File target = File.createTempFile(archiveName + "-", ".jar");
      try
      {
         ZipExporter exporter = archive.as(ZipExporter.class);
         exporter.exportZip(target, true);
         VirtualFile virtualFile = AbstractVFS.getRoot(target.toURI().toURL());
         BundleInfo.createBundleInfo(virtualFile);
      }
      finally
      {
         target.delete();
      }

[aslak]

There is a VFS FileSystem extension to ShrinkWrap. It lets you mount a Archive backed FileSystem. If that helps.

http://anonsvn.jboss.org/repos/common/shrinkwrap/trunk/extension-vfs3/

[alrubinger]

Specifically, have a look at http://anonsvn.jboss.org/repos/common/shrinkwrap/trunk/extension-vfs3/src/test/java/org/jboss/shrinkwrap/vfs3/ArchiveFileSystemUnitTestCase.java:

// Back VFS by a temp directory
      final TempDir tempDir = tempFileProvider.createTempDir(archive.getName());
      VirtualFile virtualFile = VFS.getChild(UUID.randomUUID().toString()).getChild(archive.getName());
      vfsHandles.add(VFS.mount(virtualFile, new ArchiveFileSystem(archive, tempDir)));
      return virtualFile;

...remember to unmount when done.

S,

ALR