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   /*
    *  Licensed to the Apache Software Foundation (ASF) under one
    *  or more contributor license agreements.  See the NOTICE file
    *  distributed with this work for additional information
    *  regarding copyright ownership.  The ASF licenses this file
    *  to you under the Apache License, Version 2.0 (the
    *  "License"); you may not use this file except in compliance
    *  with the License.  You may obtain a copy of the License at
    *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing,
   *  software distributed under the License is distributed on an
   *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
   *  KIND, either express or implied.  See the License for the
   *  specific language governing permissions and limitations
   *  under the License.
   *
   */
  package org.apache.mina.filter.codec;
  
  import java.util.LinkedList;
  import java.util.Queue;
  
  /**
   * A {@link ProtocolDecoderOutput} based on queue.
   *
   * @author <a href="http://mina.apache.org">Apache MINA Project</a>
   */
  public abstract class AbstractProtocolDecoderOutput implements ProtocolDecoderOutput {
      private final Queue<Object> messageQueue = new LinkedList<Object>();
  
      public AbstractProtocolDecoderOutput() {
          // Do nothing
      }
  
      public Queue<Object> getMessageQueue() {
          return messageQueue;
      }
  
      public void write(Object message) {
          if (message == null) {
              throw new IllegalArgumentException("message");
          }
  
          messageQueue.add(message);
      }
  }