AddMessageEncoder


1   /*
2    *  Licensed to the Apache Software Foundation (ASF) under one
3    *  or more contributor license agreements.  See the NOTICE file
4    *  distributed with this work for additional information
5    *  regarding copyright ownership.  The ASF licenses this file
6    *  to you under the Apache License, Version 2.0 (the
7    *  "License"); you may not use this file except in compliance
8    *  with the License.  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,
13   *  software distributed under the License is distributed on an
14   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   *  KIND, either express or implied.  See the License for the
16   *  specific language governing permissions and limitations
17   *  under the License. 
18   *  
19   */
20  package org.apache.mina.example.sumup.codec;
21  
22  import java.util.Collections  ;
23  import java.util.HashSet  ;
24  import java.util.Set  ;
25  
26  import org.apache.mina.common.ByteBuffer;
27  import org.apache.mina.common.IoSession;
28  import org.apache.mina.example.sumup.message.AbstractMessage;
29  import org.apache.mina.example.sumup.message.AddMessage;
30  import org.apache.mina.filter.codec.demux.MessageEncoder;
31  
32  /**
33   * A {@link MessageEncoder} that encodes {@link AddMessage}.
34   *
35   * @author The Apache Directory Project (mina-dev@directory.apache.org)
36   * @version $Rev: 555855 $, $Date: 2007-07-13 12:19:00 +0900 (금, 13  7월 2007) $
37   */
38  public class AddMessageEncoder extends AbstractMessageEncoder {
39      private static final Set  <Class  <?>> TYPES;
40  
41      static {
42          Set  <Class  <?>> types = new HashSet  <Class  <?>>();
43          types.add(AddMessage.class);
44          TYPES = Collections.unmodifiableSet(types);
45      }
46  
47      public AddMessageEncoder() {
48          super(Constants.ADD);
49      }
50  
51      protected void encodeBody(IoSession session, AbstractMessage message,
52              ByteBuffer out) {
53          AddMessage m = (AddMessage) message;
54          out.putInt(m.getValue());
55      }
56  
57      public Set  <Class  <?>> getMessageTypes() {
58          return TYPES;
59      }
60  
61      public void dispose() throws Exception   {
62      }
63  }
64
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