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1   //========================================================================
2   //Copyright 2011-2012 Mort Bay Consulting Pty. Ltd.
3   //------------------------------------------------------------------------
4   //All rights reserved. This program and the accompanying materials
5   //are made available under the terms of the Eclipse Public License v1.0
6   //and Apache License v2.0 which accompanies this distribution.
7   //The Eclipse Public License is available at
8   //http://www.eclipse.org/legal/epl-v10.html
9   //The Apache License v2.0 is available at
10  //http://www.opensource.org/licenses/apache2.0.php
11  //You may elect to redistribute this code under either of these licenses.
12  //========================================================================
13  
14  package org.eclipse.jetty.spdy.generator;
15  
16  import java.nio.ByteBuffer;
17  
18  import org.eclipse.jetty.spdy.ByteBufferPool;
19  import org.eclipse.jetty.spdy.frames.ControlFrame;
20  import org.eclipse.jetty.spdy.frames.NoOpFrame;
21  
22  public class NoOpGenerator extends ControlFrameGenerator
23  {
24      public NoOpGenerator(ByteBufferPool bufferPool)
25      {
26          super(bufferPool);
27      }
28  
29      @Override
30      public ByteBuffer generate(ControlFrame frame)
31      {
32          NoOpFrame noOp = (NoOpFrame)frame;
33  
34          int frameBodyLength = 0;
35          int totalLength = ControlFrame.HEADER_LENGTH + frameBodyLength;
36          ByteBuffer buffer = getByteBufferPool().acquire(totalLength, true);
37          generateControlFrameHeader(noOp, frameBodyLength, buffer);
38  
39          buffer.flip();
40          return buffer;
41      }
42  }