/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* https://glassfish.dev.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
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* If you wish your version of this file to be governed by only the CDDL or
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*/
package org.glassfish.installer.util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.util.jar.JarOutputStream;
import java.util.jar.Pack200;
import java.util.logging.Level;
import java.util.zip.GZIPInputStream;
import java.util.logging.Logger;
import org.openinstaller.util.ClassUtils;
/**
*
* @author sathyan
*/
public class Unpack {
public File unpackSrcDir;
public File unpackTgtDir;
private static final Logger LOGGER;
static {
LOGGER = Logger.getLogger(ClassUtils.getClassName());
}
public Unpack(File unpackSrcDir, File unpackTgtDir) {
this.unpackSrcDir = unpackSrcDir;
this.unpackTgtDir = unpackTgtDir;
}
// CONVERT THIS TO A MULTI-THREADED METHOD TO SPEED UP DECOMPRESSION.
public boolean unpackJars() {
boolean retStatus = true;
Pack200.Unpacker unpacker = Pack200.newUnpacker();
File[] fileList =
unpackSrcDir.listFiles(new InstallFileFilter(".pack.gz"));
for (File unpackedSrcFileName : fileList) {
String unpackedTgtFileName =
unpackTgtDir + File.separator
+ unpackedSrcFileName.getName().substring(0,
unpackedSrcFileName.getName().length() - 8)
+ ".jar";
LOGGER.log(Level.INFO, "Uncompressing " + unpackedSrcFileName + " To " + unpackedTgtFileName);
try {
FileOutputStream fos = new FileOutputStream(unpackedTgtFileName);
JarOutputStream jos = new JarOutputStream(
new BufferedOutputStream(fos));
FileInputStream fis = new FileInputStream(unpackedSrcFileName);
InputStream is = new BufferedInputStream(new GZIPInputStream(fis));
unpacker.unpack(is, jos);
fis.close();
jos.close();
unpackedSrcFileName.delete();
} catch (Exception e) {
// LOG THIS
LOGGER.log(Level.INFO, "Error Uncompressing " + ExceptionUtil.getRootCause(e));
retStatus = false;
}
}
return retStatus;
}
/* Test Code */
/*
public static void main(String args[]) {
Unpack uPack = new Unpack(
new File("/Users/sathyan/unpackdir/src"),
new File("/Users/sathyan/unpackdir/output"));
uPack.unpackJars();
}
*/
}