| /** |
| * 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.cxf.common.util; |
| |
| import java.net.URL; |
| import java.util.HashSet; |
| import java.util.Set; |
| |
| /** |
| * Utility class loader that can be used to create proxies in cases where |
| * the the client classes are not visible to the loader of the |
| * service class. |
| */ |
| public class ProxyClassLoader extends ClassLoader { |
| private final Class<?>[] classes; |
| private final Set<ClassLoader> loaders = new HashSet<>(); |
| private boolean checkSystem; |
| |
| public ProxyClassLoader(ClassLoader parent) { |
| super(parent); |
| classes = null; |
| } |
| |
| public ProxyClassLoader(ClassLoader parent, Class<?>[] cls) { |
| super(parent); |
| classes = cls; |
| } |
| |
| public void addLoader(ClassLoader loader) { |
| if (loader == null) { |
| checkSystem = true; |
| } else { |
| loaders.add(loader); |
| } |
| } |
| |
| @Override |
| public Class<?> findClass(String name) throws ClassNotFoundException { |
| if (classes != null) { |
| for (Class<?> c : classes) { |
| if (name.equals(c.getName())) { |
| return c; |
| } |
| } |
| } |
| for (ClassLoader loader : loaders) { |
| try { |
| return loader.loadClass(name); |
| } catch (ClassNotFoundException | NoClassDefFoundError cnfe) { |
| // Try next |
| } |
| } |
| if (checkSystem) { |
| try { |
| return getSystemClassLoader().loadClass(name); |
| } catch (ClassNotFoundException | NoClassDefFoundError cnfe) { |
| // Try next |
| } |
| } |
| throw new ClassNotFoundException(name); |
| } |
| |
| @Override |
| public URL findResource(String name) { |
| for (ClassLoader loader : loaders) { |
| URL url = loader.getResource(name); |
| if (url != null) { |
| return url; |
| } |
| } |
| return null; |
| } |
| } |