| /* |
| * 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 org.objectweb.asm.ClassReader; |
| import org.objectweb.asm.ClassVisitor; |
| import org.objectweb.asm.ClassWriter; |
| |
| public abstract class JarTransformer implements JarProcessor { |
| public boolean process(EntryStruct struct) throws IOException { |
| if (struct.isClass()) { |
| ClassReader reader; |
| try { |
| reader = new ClassReader(struct.data); |
| } catch (Exception e) { |
| return true; // TODO? |
| } |
| GetNameClassWriter w = new GetNameClassWriter(ClassWriter.COMPUTE_MAXS); |
| reader.accept(transform(w), ClassReader.EXPAND_FRAMES); |
| struct.data = w.toByteArray(); |
| struct.name = pathFromName(w.getClassName()); |
| } |
| return true; |
| } |
| |
| protected abstract ClassVisitor transform(ClassVisitor v); |
| |
| private static String pathFromName(String className) { |
| return className.replace('.', '/') + ".class"; |
| } |
| } |