old_trunk/core/src/main/java/org/apache/directory/server/core/partition/impl/btree/jdbm/BigIntegerSerializer.java

/*
 *  Licensed to the Apache Software Foundation (ASF) under one
 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you under the Apache License, Version 2.0 (the
 *  "License"); you may not use this file except in compliance
 *  with the License.  You may obtain a copy of the License at
 *  
 *    http://www.apache.org/licenses/LICENSE-2.0
 *  
 *  Unless required by applicable law or agreed to in writing,
 *  software distributed under the License is distributed on an
 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *  KIND, either express or implied.  See the License for the
 *  specific language governing permissions and limitations
 *  under the License. 
 *  
 */
package org.apache.directory.server.core.partition.impl.btree.jdbm;


import java.io.IOException;
import java.math.BigInteger;

import jdbm.helper.Serializer;


/**
 * A custom BigInteger serializer to [de]serialize BigIntegers.
 * 
 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
 * @version $Rev$, $Date$
 */
public class BigIntegerSerializer implements Serializer
{
    private static final long serialVersionUID = 6768192848157685880L;


    /* (non-Javadoc)
     * @see jdbm.helper.Serializer#deserialize(byte[])
     */
    public Object deserialize( byte[] bigIntBytes ) throws IOException
    {
        return new BigInteger( bigIntBytes );
    }


    /* (non-Javadoc)
     * @see jdbm.helper.Serializer#serialize(java.lang.Object)
     */
    public byte[] serialize( Object bigInt ) throws IOException
    {
        return ( ( BigInteger ) bigInt ).toByteArray();
    }
}