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 */
020package org.apache.directory.api.ldap.codec.controls.cascade;
021
022
023import java.nio.ByteBuffer;
024
025import org.apache.directory.api.asn1.Asn1Object;
026import org.apache.directory.api.asn1.DecoderException;
027import org.apache.directory.api.asn1.EncoderException;
028import org.apache.directory.api.ldap.codec.api.CodecControl;
029import org.apache.directory.api.ldap.codec.api.ControlDecorator;
030import org.apache.directory.api.ldap.codec.api.LdapApiService;
031import org.apache.directory.api.ldap.model.message.controls.Cascade;
032
033
034/**
035 * The Cascade control decorator.
036 * 
037 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
038 */
039public class CascadeDecorator extends ControlDecorator<Cascade> implements CodecControl<Cascade>, Cascade
040{
041    /**
042     * Default constructor
043     */
044    public CascadeDecorator( LdapApiService codec, Cascade control )
045    {
046        super( codec, control );
047    }
048
049
050    /**
051     * Returns the default control length.
052     */
053    public int computeLength()
054    {
055        return 0;
056    }
057
058
059    public Asn1Object decode( byte[] controlBytes ) throws DecoderException
060    {
061        return this;
062    }
063
064
065    @Override
066    public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
067    {
068        return buffer;
069    }
070}