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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.support;
21  
22  import java.util.ArrayList;
23  import java.util.List;
24  
25  import org.apache.mina.common.IoFilter.NextFilter;
26  import org.apache.mina.common.IoSession;
27  import org.apache.mina.common.support.BaseIoSession;
28  import org.apache.mina.filter.codec.ProtocolDecoderOutput;
29  
30  /**
31   * A {@link ProtocolDecoderOutput} based on queue.
32   *
33   * @author The Apache Directory Project (mina-dev@directory.apache.org)
34   * @version $Rev: 560326 $, $Date: 2007-07-28 02:30:25 +0900 (Sat, 28 Jul 2007) $
35   *
36   */
37  public class SimpleProtocolDecoderOutput implements ProtocolDecoderOutput {
38      private final NextFilter nextFilter;
39  
40      private final IoSession session;
41  
42      private final List<Object> messageQueue = new ArrayList<Object>();
43  
44      public SimpleProtocolDecoderOutput(IoSession session, NextFilter nextFilter) {
45          this.nextFilter = nextFilter;
46          this.session = session;
47      }
48  
49      public void write(Object message) {
50          messageQueue.add(message);
51          if (session instanceof BaseIoSession) {
52              ((BaseIoSession) session).increaseReadMessages();
53          }
54      }
55  
56      public void flush() {
57          while (!messageQueue.isEmpty()) {
58              nextFilter.messageReceived(session, messageQueue.remove(0));
59          }
60      }
61  }