2 * ASM: a very small and fast Java bytecode manipulation framework
3 * Copyright (c) 2000-2005 INRIA, France Telecom
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. Neither the name of the copyright holders nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28 * THE POSSIBILITY OF SUCH DAMAGE.
30 package org.objectweb.asm.optimizer;
33 import java.io.FileOutputStream;
34 import java.io.IOException;
35 import java.io.InputStream;
36 import java.util.Enumeration;
37 import java.util.zip.ZipEntry;
38 import java.util.zip.ZipFile;
39 import java.util.zip.ZipOutputStream;
42 * A Jar file optimizer.
44 * @author Eric Bruneton
46 public class JarOptimizer {
48 public static void main(final String[] args) throws IOException {
49 File f = new File(args[0]);
53 static void optimize(final File f) throws IOException {
54 if (f.isDirectory()) {
55 File[] files = f.listFiles();
56 for (int i = 0; i < files.length; ++i) {
59 } else if (f.getName().endsWith(".jar")) {
60 File g = new File(f.getParentFile(), f.getName() + ".new");
61 ZipFile zf = new ZipFile(f);
62 ZipOutputStream out = new ZipOutputStream(new FileOutputStream(g));
63 Enumeration e = zf.entries();
64 byte[] buf = new byte[10000];
65 while (e.hasMoreElements()) {
66 ZipEntry ze = (ZipEntry) e.nextElement();
67 if (ze.isDirectory()) {
71 InputStream is = zf.getInputStream(ze);
74 n = is.read(buf, 0, buf.length);