diff options
Diffstat (limited to 'tools/external/asm/org/objectweb/asm/optimizer/JarOptimizer.java')
-rw-r--r-- | tools/external/asm/org/objectweb/asm/optimizer/JarOptimizer.java | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/tools/external/asm/org/objectweb/asm/optimizer/JarOptimizer.java b/tools/external/asm/org/objectweb/asm/optimizer/JarOptimizer.java new file mode 100644 index 000000000..8302d99f7 --- /dev/null +++ b/tools/external/asm/org/objectweb/asm/optimizer/JarOptimizer.java @@ -0,0 +1,87 @@ +/*** + * 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); + } + } +} |