001    /**
002     *  Licensed to the Apache Software Foundation (ASF) under one or more
003     *  contributor license agreements.  See the NOTICE file distributed with
004     *  this work for additional information regarding copyright ownership.
005     *  The ASF licenses this file to You under the Apache License, Version 2.0
006     *  (the "License"); you may not use this file except in compliance with
007     *  the License.  You may obtain a copy of the License at
008     *
009     *     http://www.apache.org/licenses/LICENSE-2.0
010     *
011     *  Unless required by applicable law or agreed to in writing, software
012     *  distributed under the License is distributed on an "AS IS" BASIS,
013     *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     *  See the License for the specific language governing permissions and
015     *  limitations under the License.
016     */
017    
018    
019    package org.apache.geronimo.jetty6.handler;
020    
021    import java.io.IOException;
022    
023    import javax.servlet.ServletException;
024    import javax.servlet.http.HttpServletRequest;
025    import javax.servlet.http.HttpServletResponse;
026    
027    import org.mortbay.jetty.Handler;
028    
029    /**
030     * @version $Rev: 706640 $ $Date: 2008-10-21 14:44:05 +0000 (Tue, 21 Oct 2008) $
031     */
032    public class ThreadClassloaderHandler extends AbstractImmutableHandler {
033    
034        private final ClassLoader classLoader;
035    
036        public ThreadClassloaderHandler(Handler next, ClassLoader classLoader) {
037            super(next);
038            this.classLoader = classLoader;
039        }
040    
041        public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException {
042            Thread thread = Thread.currentThread();
043            ClassLoader oldClassLoader = thread.getContextClassLoader();
044            thread.setContextClassLoader(classLoader);
045            try {
046                next.handle(target, request, response, dispatch);
047            } finally {
048                thread.setContextClassLoader(oldClassLoader);
049            }
050        }
051    
052        public void lifecycleCommand(LifecycleCommand lifecycleCommand) throws Exception {
053            Thread thread = Thread.currentThread();
054            ClassLoader oldClassLoader = thread.getContextClassLoader();
055            thread.setContextClassLoader(classLoader);
056            try {
057                super.lifecycleCommand(lifecycleCommand);
058            } finally {
059                thread.setContextClassLoader(oldClassLoader);
060            }
061        }
062    }