| /* |
| * Copyright 2007 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.tonicsystems.jarjar.util; |
| |
| import java.io.*; |
| import java.util.*; |
| import java.util.Enumeration; |
| import java.util.jar.JarEntry; |
| import java.util.jar.JarFile; |
| import java.util.jar.JarOutputStream; |
| |
| public class StandaloneJarProcessor { |
| public static void run(File from, File to, JarProcessor proc) throws IOException { |
| byte[] buf = new byte[0x2000]; |
| |
| JarFile in = new JarFile(from); |
| final File tmpTo = File.createTempFile("jarjar", ".jar"); |
| JarOutputStream out = new JarOutputStream(new FileOutputStream(tmpTo)); |
| Set<String> entries = new HashSet<String>(); |
| try { |
| EntryStruct struct = new EntryStruct(); |
| Enumeration<JarEntry> e = in.entries(); |
| while (e.hasMoreElements()) { |
| JarEntry entry = e.nextElement(); |
| struct.name = entry.getName(); |
| struct.time = entry.getTime(); |
| ByteArrayOutputStream baos = new ByteArrayOutputStream(); |
| IoUtil.pipe(in.getInputStream(entry), baos, buf); |
| struct.data = baos.toByteArray(); |
| if (proc.process(struct)) { |
| if (entries.add(struct.name)) { |
| entry = new JarEntry(struct.name); |
| entry.setTime(struct.time); |
| entry.setCompressedSize(-1); |
| out.putNextEntry(entry); |
| out.write(struct.data); |
| } else if (struct.name.endsWith("/")) { |
| // TODO(chrisn): log |
| } else { |
| throw new IllegalArgumentException("Duplicate jar entries: " + struct.name); |
| } |
| } |
| } |
| |
| } finally { |
| in.close(); |
| out.close(); |
| } |
| |
| // delete the empty directories |
| IoUtil.copyZipWithoutEmptyDirectories(tmpTo, to); |
| tmpTo.delete(); |
| } |
| } |