| /* |
| * 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.sling.jcr.classloader.internal; |
| |
| import java.io.IOException; |
| import java.net.URL; |
| import java.util.Enumeration; |
| |
| import org.osgi.framework.Bundle; |
| |
| /** |
| * The <code>BundleProxyDelegate</code> TODO |
| */ |
| /* package */ class BundleProxyClassLoader extends ClassLoader { |
| |
| private Bundle bundle; |
| private ClassLoader parent; |
| |
| public BundleProxyClassLoader(Bundle bundle) { |
| this.bundle = bundle; |
| } |
| |
| public BundleProxyClassLoader(Bundle bundle, ClassLoader parent) { |
| super(parent); |
| this.parent = parent; |
| this.bundle = bundle; |
| } |
| |
| // Note: Both ClassLoader.getResources(...) and bundle.getResources(...) consult |
| // the boot classloader. As a result, BundleProxyClassLoader.getResources(...) |
| // might return duplicate results from the boot classloader. Prior to Java 5 |
| // Classloader.getResources was marked final. If your target environment requires |
| // at least Java 5 you can prevent the occurence of duplicate boot classloader |
| // resources by overriding ClassLoader.getResources(...) instead of |
| // ClassLoader.findResources(...). |
| public Enumeration findResources(String name) throws IOException { |
| return this.bundle.getResources(name); |
| } |
| |
| public URL findResource(String name) { |
| return this.bundle.getResource(name); |
| } |
| |
| public Class findClass(String name) throws ClassNotFoundException { |
| return this.bundle.loadClass(name); |
| } |
| |
| public URL getResource(String name) { |
| return (this.parent == null) ? this.findResource(name) : super.getResource(name); |
| } |
| |
| protected Class loadClass(String name, boolean resolve) throws ClassNotFoundException { |
| Class clazz = (this.parent == null) ? this.findClass(name) : super.loadClass(name, false); |
| if (resolve) |
| super.resolveClass(clazz); |
| |
| return clazz; |
| } |
| } |