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.example.sumup.codec; 21 22 import org.apache.mina.common.ByteBuffer; 23 import org.apache.mina.common.IoSession; 24 import org.apache.mina.example.sumup.message.AbstractMessage; 25 import org.apache.mina.example.sumup.message.AddMessage; 26 import org.apache.mina.filter.codec.ProtocolDecoderOutput; 27 import org.apache.mina.filter.codec.demux.MessageDecoder; 28 29 /** 30 * A {@link MessageDecoder} that decodes {@link AddMessage}. 31 * 32 * @author The Apache Directory Project (mina-dev@directory.apache.org) 33 * @version $Rev: 555855 $, $Date: 2007-07-13 05:19:00 +0200 (Fri, 13 Jul 2007) $ 34 */ 35 public class AddMessageDecoder extends AbstractMessageDecoder { 36 37 public AddMessageDecoder() { 38 super(Constants.ADD); 39 } 40 41 protected AbstractMessage decodeBody(IoSession session, ByteBuffer in) { 42 if (in.remaining() < Constants.ADD_BODY_LEN) { 43 return null; 44 } 45 46 AddMessage m = new AddMessage(); 47 m.setValue(in.getInt()); 48 return m; 49 } 50 51 public void finishDecode(IoSession session, ProtocolDecoderOutput out) 52 throws Exception { 53 } 54 }