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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 org.apache.mina.common.IoSession;
23  import org.apache.mina.common.IoFilter.NextFilter;
24  import org.apache.mina.common.support.BaseIoSession;
25  import org.apache.mina.filter.codec.ProtocolDecoderOutput;
26  import org.apache.mina.util.Queue;
27  
28  /**
29   * A {@link ProtocolDecoderOutput} based on queue.
30   * 
31   * @author The Apache Directory Project (mina-dev@directory.apache.org)
32   * @version $Rev: 560326 $, $Date: 2007-07-28 02:30:25 +0900 (토, 28  7월 2007) $
33   *
34   */
35  public class SimpleProtocolDecoderOutput implements ProtocolDecoderOutput {
36      private final NextFilter nextFilter;
37  
38      private final IoSession session;
39  
40      private final Queue messageQueue = new Queue();
41  
42      public SimpleProtocolDecoderOutput(IoSession session, NextFilter nextFilter) {
43          this.nextFilter = nextFilter;
44          this.session = session;
45      }
46  
47      public void write(Object message) {
48          messageQueue.push(message);
49          if (session instanceof BaseIoSession) {
50              ((BaseIoSession) session).increaseReadMessages();
51          }
52      }
53  
54      public void flush() {
55          while (!messageQueue.isEmpty()) {
56              nextFilter.messageReceived(session, messageQueue.pop());
57          }
58  
59      }
60  }