/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2005 INRIA, France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.objectweb.asm.optimizer;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Enumeration;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
import java.util.zip.ZipOutputStream;
/**
* A Jar file optimizer.
*
* @author Eric Bruneton
*/
public class JarOptimizer {
public static void main(final String[] args) throws IOException {
File f = new File(args[0]);
optimize(f);
}
static void optimize(final File f) throws IOException {
if (f.isDirectory()) {
File[] files = f.listFiles();
for (int i = 0; i < files.length; ++i) {
optimize(files[i]);
}
} else if (f.getName().endsWith(".jar")) {
File g = new File(f.getParentFile(), f.getName() + ".new");
ZipFile zf = new ZipFile(f);
ZipOutputStream out = new ZipOutputStream(new FileOutputStream(g));
Enumeration e = zf.entries();
byte[] buf = new byte[10000];
while (e.hasMoreElements()) {
ZipEntry ze = (ZipEntry) e.nextElement();
if (ze.isDirectory()) {
continue;
}
out.putNextEntry(ze);
InputStream is = zf.getInputStream(ze);
int n;
do {
n = is.read(buf, 0, buf.length);
if (n != -1) {
out.write(buf, 0, n);
}
} while (n != -1);
out.closeEntry();
}
out.close();
zf.close();
f.delete();
g.renameTo(f);
}
}
}