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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
4   //  ------------------------------------------------------------------------
5   //  All rights reserved. This program and the accompanying materials
6   //  are made available under the terms of the Eclipse Public License v1.0
7   //  and Apache License v2.0 which accompanies this distribution.
8   //
9   //      The Eclipse Public License is available at
10  //      http://www.eclipse.org/legal/epl-v10.html
11  //
12  //      The Apache License v2.0 is available at
13  //      http://www.opensource.org/licenses/apache2.0.php
14  //
15  //  You may elect to redistribute this code under either of these licenses.
16  //  ========================================================================
17  //
18  
19  package org.eclipse.jetty.websocket.jsr356.messages;
20  
21  import java.io.IOException;
22  import java.nio.ByteBuffer;
23  
24  import javax.websocket.MessageHandler;
25  import javax.websocket.MessageHandler.Partial;
26  
27  import org.eclipse.jetty.util.BufferUtil;
28  import org.eclipse.jetty.websocket.common.message.MessageAppender;
29  import org.eclipse.jetty.websocket.jsr356.MessageHandlerWrapper;
30  
31  /**
32   * Partial TEXT MessageAppender for MessageHandler.Partial interface
33   */
34  public class TextPartialMessage implements MessageAppender
35  {
36      @SuppressWarnings("unused")
37      private final MessageHandlerWrapper msgWrapper;
38      private final MessageHandler.Partial<String> partialHandler;
39  
40      @SuppressWarnings("unchecked")
41      public TextPartialMessage(MessageHandlerWrapper wrapper)
42      {
43          this.msgWrapper = wrapper;
44          this.partialHandler = (Partial<String>)wrapper.getHandler();
45      }
46  
47      @Override
48      public void appendMessage(ByteBuffer payload, boolean isLast) throws IOException
49      {
50          // No decoders for Partial messages per JSR-356 (PFD1 spec)
51          partialHandler.onMessage(BufferUtil.toUTF8String(payload.slice()),isLast);
52      }
53  
54      @Override
55      public void messageComplete()
56      {
57          /* nothing to do here */
58      }
59  }