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.server.core.partition.impl.btree.jdbm;
021    
022    
023    import org.apache.directory.server.core.avltree.Marshaller;
024    
025    import java.io.IOException;
026    
027    import jdbm.helper.Serializer;
028    
029    
030    /**
031     * A Marshaller which adapts a JDBM Serializer.
032     *
033     * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
034     * @version $Rev$
035     */
036    public class MarshallerSerializerBridge<E> implements Marshaller<E>
037    {
038        /** the wrapped serializer */
039        private final Serializer serializer;
040    
041    
042        /**
043         *
044         * @param serializer the JDBM Serializer to wrap
045         */
046        public MarshallerSerializerBridge( Serializer serializer )
047        {
048            if ( serializer == null )
049            {
050                throw new NullPointerException( "serializer" );
051            }
052            this.serializer = serializer;
053        }
054    
055    
056        /**
057         * @see Marshaller#serialize(Object)
058         */
059        public byte[] serialize( E object ) throws IOException
060        {
061            return serializer.serialize( object );
062        }
063    
064    
065        /**
066         * @see Marshaller#deserialize(byte[])
067         */
068        @SuppressWarnings({"unchecked"})
069        public E deserialize( byte[] bytes ) throws IOException
070        {
071            return ( E ) serializer.deserialize( bytes );
072        }
073    }