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/**
 * 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.jaxrs.client;

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 JAX-RS client classes are not visible to the loader of the
 * service class.    
 */
public class ProxyClassLoader extends ClassLoader {
    private Set loaders = new HashSet();

    public void addLoader(ClassLoader loader) {
        loaders.add(loader);
    }

    public Class findClass(String name) throws ClassNotFoundException {
        for (ClassLoader loader : loaders) {
            try {
                return loader.loadClass(name);
            } catch (ClassNotFoundException cnfe) {
                // Try next
            }
        }
        throw new ClassNotFoundException(name);
    }
    
    public URL findResource(String name) {
        for (ClassLoader loader : loaders) {
            URL url = loader.getResource(name);
            if (url != null) {
                return url;
            }
        }
        return null;
    }
}