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.mavibot.btree.util;
021
022
023import java.io.DataInputStream;
024import java.io.DataOutputStream;
025import java.io.IOException;
026
027import org.apache.directory.mavibot.btree.Tuple;
028
029
030/**
031 * TODO IntTupleReaderWriter.
032 *
033 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
034 */
035public class IntTupleReaderWriter implements TupleReaderWriter<Integer, Integer>
036{
037
038    @Override
039    public void storeSortedTuple( Tuple<Integer, Integer> t, DataOutputStream out ) throws IOException
040    {
041        out.writeInt( t.getKey() );
042        out.writeInt( t.getValue() );
043    }
044
045
046    @Override
047    public Tuple<Integer, Integer> readSortedTuple( DataInputStream in )
048    {
049        return readUnsortedTuple( in );
050    }
051
052
053    @Override
054    public Tuple<Integer, Integer> readUnsortedTuple( DataInputStream in )
055    {
056
057        try
058        {
059            if ( in.available() <= 0 )
060            {
061                return null;
062            }
063
064            Tuple<Integer, Integer> t = new Tuple<Integer, Integer>( in.readInt(), in.readInt() );
065
066            return t;
067        }
068        catch ( IOException e )
069        {
070            e.printStackTrace();
071        }
072
073        return null;
074    }
075}