001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *  
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *  
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License. 
018 *  
019 */
020
021package org.apache.directory.server.dns.protocol;
022
023
024import java.io.IOException;
025
026import org.apache.directory.server.dns.io.decoder.DnsMessageDecoder;
027import org.apache.mina.core.buffer.IoBuffer;
028import org.apache.mina.core.session.IoSession;
029import org.apache.mina.filter.codec.ProtocolDecoderAdapter;
030import org.apache.mina.filter.codec.ProtocolDecoderOutput;
031
032
033/**
034 * A ProtocolDecoder for use in the MINA framework that uses the 
035 * DnsMessageDecoder to decode DnsMessages.
036 * 
037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
038 */
039public class DnsUdpDecoder extends ProtocolDecoderAdapter
040{
041    private DnsMessageDecoder decoder = new DnsMessageDecoder();
042
043
044    public void decode( IoSession session, IoBuffer in, ProtocolDecoderOutput out ) throws IOException
045    {
046        out.write( decoder.decode( in ) );
047    }
048}