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}