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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  }