| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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 org.apache.felix.ipojo.manipulation; |
| |
| import org.apache.commons.io.FileUtils; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.util.LinkedHashMap; |
| import java.util.Map; |
| |
| /** |
| * A classloader used to load manipulated classes. |
| */ |
| public class ManipulatedClassLoader extends ClassLoader { |
| |
| private String name; |
| private byte[] clazz; |
| |
| private Map<String, byte[]> inner = new LinkedHashMap<String, byte[]>(); |
| |
| public ManipulatedClassLoader(String name, byte[] clazz) { |
| this.name = name; |
| this.clazz = clazz; |
| } |
| |
| public byte[] get(String name) { |
| if (name.equals(this.name)) { |
| return clazz; |
| } |
| if (inner.containsKey(name)) { |
| return inner.get(name); |
| } |
| return null; |
| } |
| |
| public void addInnerClass(String name, byte[] clazz) { |
| inner.put(name, clazz); |
| } |
| |
| public Class findClass(String name) throws ClassNotFoundException { |
| if (name.equals(this.name)) { |
| return defineClass(name, clazz, 0, clazz.length); |
| } |
| |
| if (inner.containsKey(name)) { |
| return defineClass(name, inner.get(name), 0, inner.get(name).length); |
| } |
| |
| return super.findClass(name); |
| } |
| |
| public Class loadClass(String classname) throws ClassNotFoundException { |
| if (inner.containsKey(classname)) { |
| return findClass(classname); |
| } |
| return super.loadClass(classname); |
| } |
| |
| public static final File DUMP_BASEDIR = new File("target/dump"); |
| |
| public void dump() throws IOException { |
| File outer = new File(DUMP_BASEDIR, name.replace(".", "/") + ".class"); |
| FileUtils.writeByteArrayToFile(outer, clazz); |
| for (String name : inner.keySet()) { |
| File file = new File(DUMP_BASEDIR, name.replace(".", "/") + ".class"); |
| FileUtils.writeByteArrayToFile(file, inner.get(name)); |
| } |
| } |
| |
| public Map<String, byte[]> getAllInnerClasses() { |
| return inner; |
| } |
| |
| public void addInnerClassIfNotAlreadyDefined(String name, byte[] innerClassBytecode) { |
| if (! inner.containsKey(name)) { |
| inner.put(name, innerClassBytecode); |
| } |
| } |
| } |