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1   //
2   //  ========================================================================
3   //  Copyright (c) 1995-2016 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.Reader;
22  import java.lang.reflect.Method;
23  
24  import javax.websocket.DecodeException;
25  import javax.websocket.Decoder;
26  import javax.websocket.OnMessage;
27  
28  import org.eclipse.jetty.websocket.jsr356.JsrSession;
29  import org.eclipse.jetty.websocket.jsr356.annotations.Param.Role;
30  
31  /**
32   * Callable for {@link OnMessage} annotated methods with a whole or partial text messages.
33   * <p>
34   * Not for use with {@link Reader} based {@link OnMessage} method objects.
35   * 
36   * @see javax.websocket.Decoder.Text
37   */
38  public class OnMessageTextCallable extends OnMessageCallable
39  {
40      private Decoder.Text<?> textDecoder;
41  
42      public OnMessageTextCallable(Class<?> pojo, Method method)
43      {
44          super(pojo,method);
45      }
46  
47      /**
48       * Copy Constructor
49       * @param copy the callable to copy from
50       */
51      public OnMessageTextCallable(OnMessageCallable copy)
52      {
53          super(copy);
54      }
55  
56      public Object call(Object endpoint, String str, boolean partialFlag) throws DecodeException
57      {
58          super.args[idxMessageObject] = textDecoder.decode(str);
59          if (idxPartialMessageFlag >= 0)
60          {
61              super.args[idxPartialMessageFlag] = partialFlag;
62          }
63          return super.call(endpoint,super.args);
64      }
65  
66      @Override
67      public void init(JsrSession session)
68      {
69          idxMessageObject = findIndexForRole(Role.MESSAGE_TEXT);
70          assertRoleRequired(idxMessageObject,"Text Message Object");
71          super.init(session);
72          assertDecoderRequired();
73          textDecoder = (Decoder.Text<?>)getDecoder();
74      }
75  }