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Java > Open Source Codes > org > apache > geronimo > jetty > interceptor > ThreadClassloaderBeforeAfter


1 /**
2  *
3  * Copyright 2003-2004 The Apache Software Foundation
4  *
5  * Licensed under the Apache License, Version 2.0 (the "License");
6  * you may not use this file except in compliance with the License.
7  * You may obtain a copy of the License at
8  *
9  * http://www.apache.org/licenses/LICENSE-2.0
10  *
11  * Unless required by applicable law or agreed to in writing, software
12  * distributed under the License is distributed on an "AS IS" BASIS,
13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  * See the License for the specific language governing permissions and
15  * limitations under the License.
16  */
17 package org.apache.geronimo.jetty.interceptor;
18
19 import org.mortbay.http.HttpRequest;
20 import org.mortbay.http.HttpResponse;
21
22
23 /**
24  * @version $Rev: $ $Date: $
25  */
26 public class ThreadClassloaderBeforeAfter implements BeforeAfter {
27
28     private final BeforeAfter next;
29     private final int threadIndex;
30     private final int classLoaderIndex;
31     private final ClassLoader JavaDoc classLoader;
32
33     public ThreadClassloaderBeforeAfter(BeforeAfter next, int threadIndex, int classLoaderIndex, ClassLoader JavaDoc classLoader) {
34         this.next = next;
35         this.threadIndex = threadIndex;
36         this.classLoaderIndex = classLoaderIndex;
37         this.classLoader = classLoader;
38     }
39
40     public void before(Object JavaDoc[] context, HttpRequest httpRequest, HttpResponse httpResponse) {
41         Thread JavaDoc thread = Thread.currentThread();
42         context[threadIndex] = thread;
43         context[classLoaderIndex] = thread.getContextClassLoader();
44         thread.setContextClassLoader(classLoader);
45         if (next != null) {
46             next.before(context, httpRequest, httpResponse);
47         }
48     }
49
50     public void after(Object JavaDoc[] context, HttpRequest httpRequest, HttpResponse httpResponse) {
51         if (next != null) {
52             next.after(context, httpRequest, httpResponse);
53         }
54         ((Thread JavaDoc)context[threadIndex]).setContextClassLoader((ClassLoader JavaDoc)context[classLoaderIndex]);
55     }
56
57 }
58
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