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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.filter.codec.demux;
21  
22  import org.apache.mina.core.session.IoSession;
23  import org.apache.mina.filter.codec.ProtocolCodecFactory;
24  import org.apache.mina.filter.codec.ProtocolDecoder;
25  import org.apache.mina.filter.codec.ProtocolEncoder;
26  
27  /**
28   * A convenience {@link ProtocolCodecFactory} that provides {@link DemuxingProtocolEncoder}
29   * and {@link DemuxingProtocolDecoder} as a pair.
30   * <p>
31   * {@link DemuxingProtocolEncoder} and {@link DemuxingProtocolDecoder} demultiplex
32   * incoming messages and buffers to appropriate {@link MessageEncoder}s and 
33   * {@link MessageDecoder}s.
34   *
35   * @author The Apache MINA Project (dev@mina.apache.org)
36   * @version $Rev: 671827 $, $Date: 2008-06-26 10:49:48 +0200 (jeu, 26 jun 2008) $
37   */
38  public class DemuxingProtocolCodecFactory implements ProtocolCodecFactory {
39  
40      private final DemuxingProtocolEncoder encoder = new DemuxingProtocolEncoder();
41      private final DemuxingProtocolDecoder decoder = new DemuxingProtocolDecoder();
42  
43      public DemuxingProtocolCodecFactory() {
44      }
45  
46      public ProtocolEncoder getEncoder(IoSession session) throws Exception {
47          return encoder;
48      }
49  
50      public ProtocolDecoder getDecoder(IoSession session) throws Exception {
51          return decoder;
52      }
53      
54      @SuppressWarnings("unchecked")
55      public void addMessageEncoder(Class<?> messageType, Class<? extends MessageEncoder> encoderClass) {
56          this.encoder.addMessageEncoder(messageType, encoderClass);
57      }
58  
59      public <T> void addMessageEncoder(Class<T> messageType, MessageEncoder<? super T> encoder) {
60          this.encoder.addMessageEncoder(messageType, encoder);
61      }
62  
63      public <T> void addMessageEncoder(Class<T> messageType, MessageEncoderFactory<? super T> factory) {
64          this.encoder.addMessageEncoder(messageType, factory);
65      }
66      
67      @SuppressWarnings("unchecked")
68      public void addMessageEncoder(Iterable<Class<?>> messageTypes, Class<? extends MessageEncoder> encoderClass) {
69          for (Class<?> messageType : messageTypes) {
70              addMessageEncoder(messageType, encoderClass);
71          }
72      }
73      
74      public <T> void addMessageEncoder(Iterable<Class<? extends T>> messageTypes, MessageEncoder<? super T> encoder) {
75          for (Class<? extends T> messageType : messageTypes) {
76              addMessageEncoder(messageType, encoder);
77          }
78      }
79      
80      public <T> void addMessageEncoder(Iterable<Class<? extends T>> messageTypes, MessageEncoderFactory<? super T> factory) {
81          for (Class<? extends T> messageType : messageTypes) {
82              addMessageEncoder(messageType, factory);
83          }
84      }
85      
86      public void addMessageDecoder(Class<? extends MessageDecoder> decoderClass) {
87          this.decoder.addMessageDecoder(decoderClass);
88      }
89  
90      public void addMessageDecoder(MessageDecoder decoder) {
91          this.decoder.addMessageDecoder(decoder);
92      }
93  
94      public void addMessageDecoder(MessageDecoderFactory factory) {
95          this.decoder.addMessageDecoder(factory);
96      }
97  }