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 package org.apache.directory.shared.asn1.codec;
021
022
023 import org.apache.directory.shared.asn1.codec.stateful.DecoderCallback;
024 import org.apache.directory.shared.asn1.codec.stateful.StatefulDecoder;
025 import org.apache.mina.core.buffer.IoBuffer;
026 import org.apache.mina.core.session.IoSession;
027 import org.apache.mina.filter.codec.ProtocolDecoderAdapter;
028 import org.apache.mina.filter.codec.ProtocolDecoderOutput;
029
030
031 /**
032 * Adapts {@link StatefulDecoder} to MINA <tt>ProtocolDecoder</tt>
033 *
034 * @author The Apache Directory Project (mina-dev@directory.apache.org)
035 * @version $Rev: 725712 $, $Date: 2008-12-11 16:32:04 +0100 (Jeu, 11 déc 2008) $,
036 */
037 public class Asn1CodecDecoder extends ProtocolDecoderAdapter
038 {
039 private final StatefulDecoder decoder;
040 private final DecoderCallbackImpl callback = new DecoderCallbackImpl();
041
042
043 public Asn1CodecDecoder( StatefulDecoder decoder )
044 {
045 decoder.setCallback( callback );
046 this.decoder = decoder;
047 }
048
049
050 public void decode( IoSession session, IoBuffer in, ProtocolDecoderOutput out ) throws DecoderException
051 {
052 callback.decOut = out;
053 decoder.decode( in.buf() );
054 }
055
056
057 private class DecoderCallbackImpl implements DecoderCallback
058 {
059 private ProtocolDecoderOutput decOut;
060
061 public void decodeOccurred( StatefulDecoder decoder, Object decoded )
062 {
063 decOut.write( decoded );
064 }
065 }
066 }