Examples of org.jboss.virtual.spi.VirtualFileHandler.openStream()

Class org.jboss.virtual.spi.VirtualFileHandler

Examples of org.jboss.virtual.spi.VirtualFileHandler.openStream()

org.jboss.virtual.spi.VirtualFileHandler.openStream()
Access the file contents. @return An InputStream for the file contents. @throws IOException for any problem accessing the virtual file system @throws IllegalStateException if closed

   public void testOpenStream() throws Exception
   {
      VFSContext context = getVFSContext("simple");
      VirtualFileHandler root = context.getRoot();
      VirtualFileHandler child = context.findChild(root, "child");
      InputStream stream = child.openStream();
      try
      {
         byte[] contents = new byte[10];
         int read = stream.read(contents);
         int total = 0;

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      VirtualFileHandler root = context.getRoot();
      VirtualFileHandler child = context.findChild(root, "child");
      child.close();
      try
      {
         child.openStream();
         fail("Should not be here!");
      }
      catch (Throwable t)
      {
         checkThrowable(IllegalStateException.class, t);

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   public void testOpenStream() throws Exception
   {
      VFSContext context = getVFSContext("simple");
      VirtualFileHandler root = context.getRoot();
      VirtualFileHandler child = context.getChild(root, "child");
      InputStream stream = child.openStream();
      try
      {
         byte[] contents = new byte[10];
         int read = stream.read(contents);
         int total = 0;

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      VirtualFileHandler root = context.getRoot();
      VirtualFileHandler child = context.getChild(root, "child");
      child.close();
      try
      {
         child.openStream();
         fail("Should not be here!");
      }
      catch (Throwable t)
      {
         checkThrowable(IllegalStateException.class, t);

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      VirtualFileHandler e1 = njfs.getChild("org/jboss/test/vfs/support/jar1/ClassInJar1.class");
      assertNotNull(e1);
      log.info("org/jboss/test/vfs/support/CommonClass.class: "+e1);
      VirtualFileHandler mfe1 = njfs.getChild("META-INF/MANIFEST.MF");
      assertNotNull("jar1!/META-INF/MANIFEST.MF", mfe1);
      InputStream mfIS = mfe1.openStream();
      Manifest mf = new Manifest(mfIS);
      Attributes mainAttrs = mf.getMainAttributes();
      String title1 = mainAttrs.getValue(Attributes.Name.SPECIFICATION_TITLE);
      assertEquals("jar1", title1);
      mfIS.close();

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      VirtualFileHandler e2 = njfs2.getChild("org/jboss/test/vfs/support/jar2/ClassInJar2.class");
      assertNotNull(e2);
      log.info("org/jboss/test/vfs/support/CommonClass.class: "+e2);
      VirtualFileHandler mfe2 = njfs2.getChild("META-INF/MANIFEST.MF");
      assertNotNull("jar2!/META-INF/MANIFEST.MF", mfe2);
      InputStream mf2IS = mfe2.openStream();
      Manifest mf2 = new Manifest(mf2IS);
      Attributes mainAttrs2 = mf2.getMainAttributes();
      String title2 = mainAttrs2.getValue(Attributes.Name.SPECIFICATION_TITLE);
      assertEquals("jar2", title2);
      mf2IS.close();

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   {
      URL url = getResource("/vfs/context/jar/complex.jar");
      VFSContext ctx = createVSFContext(url);


      VirtualFileHandler sub = ctx.getRoot().getChild("subfolder");
      InputStream is = sub.openStream();
      try
      {
         // JBVFS-57 JarInputStream composition - recomposes directory as a
         // jar equivalent to jar:complex.jar!/subfolder
         // NOT IMPLEMENTED for vfsjar - vfsjar is deprecated

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      VFSContext ctx = createVSFContext(url);


      VirtualFileHandler nested = ctx.getRoot().getChild("complex.jar");
      VirtualFileHandler target = nested.getChild("META-INF/MANIFEST.MF");


      InputStream is = target.openStream();
      try
      {
         assertFalse("input stream closed", is.read() == -1);
      }
      finally

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      assertNotNull("toURI not null", handler.toURI());
      assertNotNull("toURL not null", handler.toURL());
      assertNotNull("toVfsUrl not null", handler.toVfsUrl());


      ByteArrayOutputStream memOut = new ByteArrayOutputStream();
      VFSUtils.copyStreamAndClose(handler.openStream(), memOut);
      assertTrue("read archive content", memOut.size() == handler.getSize());


      // invalid archive


      handler = ctx.getRoot().getChild("notanarchive.jar");

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      assertNotNull("toURI not null", handler.toURI());
      assertNotNull("toURL not null", handler.toURL());
      assertNotNull("toVfsUrl not null", handler.toVfsUrl());


      memOut = new ByteArrayOutputStream();
      VFSUtils.copyStreamAndClose(handler.openStream(), memOut);
      assertTrue("read archive content", memOut.size() == handler.getSize());
   }


   /**
    * Real URL test

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