Examples of com.xuggle.xuggler.io.IURLProtocolHandler

com.xuggle.xuggler.io.IURLProtocolHandler
Interface that Xuggler native code calls back to for each URL. It is assumed a new Protocol object is made per URL being read or written to.
You must implement this interface if you want to register a new type of URLProtocolHandler with the {@link URLProtocolManager}.

If you throw an exception in your implementation of this handler during a callback from within Xuggler, we will assume your method returned -1 while still in native code. Once the stack unwinds back into Java we will re-raise your exception.
@see FileProtocolHandler @see NullProtocolHandler @author aclarke

    retval = handler.open(copyFile, IURLProtocolHandler.URL_WRONLY_MODE);
    assertTrue(retval >= 0);


    // Now, create and open a read handler.
    // note that without a protocol string, should default to file:
    IURLProtocolHandler reader = new FileProtocolHandler(sampleFile);
    retval = reader.open(null, IURLProtocolHandler.URL_RDONLY_MODE);


    long bytesWritten = 0;
    long totalBytes = reader.seek(0, IURLProtocolHandler.SEEK_SIZE);


    byte[] buffer = new byte[1024];
    while ((retval = reader.read(buffer, buffer.length)) > 0)
    {
      // Write the output.
      retval = handler.write(buffer, retval);
      assertTrue(retval >= 0);
      bytesWritten += retval;
    }
    assertTrue(bytesWritten == totalBytes);


    // close each file
    retval = reader.close();
    assertTrue(retval >= 0);


    retval = handler.close();
    assertTrue(retval >= 0);

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    assertTrue("url_close failed: " + retval, retval >= 0);
  }


  private static long getFileSize(String filename)
  {
    IURLProtocolHandler handler = new FileProtocolHandler();


    int retval = 0;
    retval = handler.open(filename, IURLProtocolHandler.URL_RDONLY_MODE);
    assertTrue(retval >= 0);


    long totalBytes = handler.seek(0, IURLProtocolHandler.SEEK_SIZE);
    assertTrue(totalBytes >= 0);


    // and close
    retval = handler.close();
    assertTrue(retval >= 0);
    return totalBytes;
  }

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  @Test
  public void testInteruptStatusPreservedAccrossJNICalls()
  {
    IContainer container = IContainer.make();
    
    IURLProtocolHandler handler = new IURLProtocolHandler(){
      public int close()
      {
        return 0;
      }

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   * 
   * @returns A protocol handler to use.
   */
  public IURLProtocolHandler getHandler(String url, int flags)
  {
    IURLProtocolHandler result = null;


    log.trace("looking for protocol handler for: {}", url);
    if (url == null || url.length() == 0)
      throw new IllegalArgumentException("expected valid URL");
    int colonIndex = url.indexOf(":");

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    retval = handler.open(copyFile, IURLProtocolHandler.URL_WRONLY_MODE);
    assertTrue(retval >= 0);


    // Now, create and open a read handler.
    // note that without a protocol string, should default to file:
    IURLProtocolHandler reader = new FileProtocolHandler(sampleFile);
    retval = reader.open(null, IURLProtocolHandler.URL_RDONLY_MODE);


    long bytesWritten = 0;
    long totalBytes = reader.seek(0, IURLProtocolHandler.SEEK_SIZE);


    byte[] buffer = new byte[1024];
    while ((retval = reader.read(buffer, buffer.length)) > 0)
    {
      // Write the output.
      retval = handler.write(buffer, retval);
      assertTrue(retval >= 0);
      bytesWritten += retval;
    }
    assertTrue(bytesWritten == totalBytes);


    // close each file
    retval = reader.close();
    assertTrue(retval >= 0);


    retval = handler.close();
    assertTrue(retval >= 0);

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    assertTrue("url_close failed: " + retval, retval >= 0);
  }


  private static long getFileSize(String filename)
  {
    IURLProtocolHandler handler = new FileProtocolHandler();


    int retval = 0;
    retval = handler.open(filename, IURLProtocolHandler.URL_RDONLY_MODE);
    assertTrue(retval >= 0);


    long totalBytes = handler.seek(0, IURLProtocolHandler.SEEK_SIZE);
    assertTrue(totalBytes >= 0);


    // and close
    retval = handler.close();
    assertTrue(retval >= 0);
    return totalBytes;
  }

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Related Classes of com.xuggle.xuggler.io.IURLProtocolHandler

com.xuggle.xuggler.InterruptingExhaustiveTest

com.xuggle.xuggler.io.FileProtocolHandlerTest

com.xuggle.xuggler.io.URLProtocolManager

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