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1   /*
2    *   @(#) $Id: ProtocolFilterAdapter.java 210062 2005-07-11 03:52:38Z trustin $
3    *
4    *   Copyright 2004 The Apache Software Foundation
5    *
6    *   Licensed under the Apache License, Version 2.0 (the "License");
7    *   you may not use this file except in compliance with the License.
8    *   You may obtain a copy of the License at
9    *
10   *       http://www.apache.org/licenses/LICENSE-2.0
11   *
12   *   Unless required by applicable law or agreed to in writing, software
13   *   distributed under the License is distributed on an "AS IS" BASIS,
14   *   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15   *   See the License for the specific language governing permissions and
16   *   limitations under the License.
17   *
18   */
19  package org.apache.mina.protocol;
20  
21  import org.apache.mina.common.IdleStatus;
22  
23  /***
24   * An abstract adapter class for {@link ProtocolFilter}.  You can extend
25   * this class and selectively override required event filter methods only.  All
26   * methods forwards events to the next filter by default.
27   * 
28   * @author Trustin Lee (trustin@apache.org)
29   * @version $Rev: 210062 $, $Date: 2005-07-11 12:52:38 +0900 $
30   */
31  public class ProtocolFilterAdapter implements ProtocolFilter
32  {
33      public void sessionOpened( NextFilter nextFilter,
34                                ProtocolSession session )
35      {
36          nextFilter.sessionOpened( session );
37      }
38  
39      public void sessionClosed( NextFilter nextFilter,
40                                ProtocolSession session )
41      {
42          nextFilter.sessionClosed( session );
43      }
44  
45      public void sessionIdle( NextFilter nextFilter,
46                              ProtocolSession session, IdleStatus status )
47      {
48          nextFilter.sessionIdle( session, status );
49      }
50  
51      public void exceptionCaught( NextFilter nextFilter,
52                                  ProtocolSession session, Throwable cause )
53      {
54          nextFilter.exceptionCaught( session, cause );
55      }
56  
57      public void messageReceived( NextFilter nextFilter,
58                                  ProtocolSession session, Object message )
59      {
60          nextFilter.messageReceived( session, message );
61      }
62  
63      public void messageSent( NextFilter nextFilter,
64                              ProtocolSession session, Object message )
65      {
66          nextFilter.messageSent( session, message );
67      }
68  
69      public void filterWrite( NextFilter nextFilter, ProtocolSession session, Object message )
70      {
71          nextFilter.filterWrite( session, message );
72      }
73  }