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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2014 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.common;
20  
21  import java.io.IOException;
22  
23  import org.eclipse.jetty.util.Callback;
24  import org.eclipse.jetty.util.SharedBlockingCallback;
25  import org.eclipse.jetty.websocket.api.WriteCallback;
26  
27  
28  /* ------------------------------------------------------------ */
29  /** extend a SharedlBlockingCallback to an websocket WriteCallback
30   */
31  public class BlockingWriteCallback extends SharedBlockingCallback
32  {
33      public BlockingWriteCallback()
34      {
35      }
36          
37      public WriteBlocker acquireWriteBlocker() throws IOException
38      {
39          return new WriteBlocker(acquire());
40      }
41      
42      public static class WriteBlocker implements WriteCallback, Callback, AutoCloseable
43      {
44          Blocker blocker;
45          
46          WriteBlocker(Blocker blocker)
47          {
48              this.blocker=blocker;
49          }
50          
51          @Override
52          public void writeFailed(Throwable x)
53          {
54              blocker.failed(x);
55          }
56  
57          @Override
58          public void writeSuccess()
59          {
60              blocker.succeeded();
61          }
62  
63          @Override
64          public void succeeded()
65          {
66              blocker.succeeded();
67          }
68  
69          @Override
70          public void failed(Throwable x)
71          {
72              blocker.failed(x);
73          }
74          
75          @Override
76          public void close() throws IOException
77          {
78              blocker.close();
79          }
80          
81          public void block() throws IOException
82          {
83              blocker.block();
84          }
85      }
86  }