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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.annotations;
20  
21  import java.io.InputStream;
22  import java.nio.ByteBuffer;
23  
24  import javax.websocket.OnMessage;
25  
26  import org.eclipse.jetty.websocket.common.events.annotated.InvalidSignatureException;
27  import org.eclipse.jetty.websocket.jsr356.annotations.Param.Role;
28  import org.eclipse.jetty.websocket.jsr356.decoders.ByteArrayDecoder;
29  import org.eclipse.jetty.websocket.jsr356.decoders.ByteBufferDecoder;
30  
31  /**
32   * Param handling for static Binary @{@link OnMessage} parameters.
33   */
34  public class JsrParamIdBinary extends JsrParamIdOnMessage implements IJsrParamId
35  {
36      public static final IJsrParamId INSTANCE = new JsrParamIdBinary();
37  
38      @Override
39      public boolean process(Param param, JsrCallable callable) throws InvalidSignatureException
40      {
41          if (super.process(param,callable))
42          {
43              // Found common roles
44              return true;
45          }
46  
47          if (param.type.isAssignableFrom(ByteBuffer.class))
48          {
49              param.bind(Role.MESSAGE_BINARY);
50              callable.setDecoderClass(ByteBufferDecoder.class);
51              return true;
52          }
53  
54          if (param.type.isAssignableFrom(byte[].class))
55          {
56              param.bind(Role.MESSAGE_BINARY);
57              callable.setDecoderClass(ByteArrayDecoder.class);
58              return true;
59          }
60  
61          // Streaming
62          if (param.type.isAssignableFrom(InputStream.class))
63          {
64              assertPartialMessageSupportDisabled(param,callable);
65              param.bind(Role.MESSAGE_BINARY_STREAM);
66              // Streaming have no decoder
67              return true;
68          }
69  
70          return false;
71      }
72  }