001/* 002 * $Id: BZip2PackCompressor.java,v 1.2 2005/08/26 11:22:53 bartzkau Exp $ 003 * IzPack - Copyright 2001-2005 Julien Ponge, All Rights Reserved. 004 * 005 * http://www.izforge.com/izpack/ 006 * http://developer.berlios.de/projects/izpack/ 007 * 008 * Copyright 2005 Klaus Bartz 009 * 010 * Licensed under the Apache License, Version 2.0 (the "License"); 011 * you may not use this file except in compliance with the License. 012 * You may obtain a copy of the License at 013 * 014 * http://www.apache.org/licenses/LICENSE-2.0 015 * 016 * Unless required by applicable law or agreed to in writing, software 017 * distributed under the License is distributed on an "AS IS" BASIS, 018 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 019 * See the License for the specific language governing permissions and 020 * limitations under the License. 021 */ 022package com.izforge.izpack.compressor; 023 024import java.io.OutputStream; 025 026 027/** 028 * IzPack will be able to support different compression methods for the 029 * packs included in the installation jar file. 030 * This class implements the PackCompressor for the compression format "bzip2". 031 * 032 * @author Klaus Bartz 033 */ 034public class BZip2PackCompressor extends PackCompressorBase 035{ 036 037 private static final String [] THIS_FORMAT_NAMES = {"bzip2"}; 038 private static final String [] THIS_CONTAINER_PATH = {"lib/ant.jar"}; 039 private static final String THIS_DECODER_MAPPER = "org.apache.tools.bzip2.CBZip2InputStream"; 040 private static final String [][] THIS_DECODER_CLASS_NAMES = 041 {{ "org.apache.tools.bzip2.BZip2Constants.*" , 042 "org.apache.tools.bzip2.CBZip2InputStream.*", 043 "org.apache.tools.bzip2.CRC.*" 044 }}; 045 private static final String THIS_ENCODER_CLASS_NAME = "org.apache.tools.bzip2.CBZip2OutputStream"; 046 047 /** 048 * 049 */ 050 public BZip2PackCompressor() 051 { 052 super(); 053 formatNames = THIS_FORMAT_NAMES; 054 containerPaths = THIS_CONTAINER_PATH; 055 decoderMapper = THIS_DECODER_MAPPER; 056 decoderClassNames = THIS_DECODER_CLASS_NAMES; 057 encoderClassName = THIS_ENCODER_CLASS_NAME; 058 } 059 060 /* (non-Javadoc) 061 * @see com.izforge.izpack.compressor.PackCompressor#getOutputStream(java.io.OutputStream) 062 */ 063 public OutputStream getOutputStream(OutputStream os) throws Exception 064 { 065 // TODO Auto-generated method stub 066 067 return( getOutputInstance(os)); 068 } 069 070}