KickJava   Java API By Example, From Geeks To Geeks.

Java > Open Source Codes > org > apache > geronimo > proxy > ReflexiveInterceptor


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
18 package org.apache.geronimo.proxy;
19
20 import java.lang.reflect.InvocationTargetException JavaDoc;
21 import java.lang.reflect.Method JavaDoc;
22
23 import org.apache.geronimo.core.service.Interceptor;
24 import org.apache.geronimo.core.service.Invocation;
25 import org.apache.geronimo.core.service.InvocationResult;
26 import org.apache.geronimo.core.service.SimpleInvocationResult;
27
28 /**
29  * @version $Rev: 46019 $ $Date: 2004-09-14 02:56:06 -0700 (Tue, 14 Sep 2004) $
30  */
31 public class ReflexiveInterceptor implements Interceptor {
32
33     Object JavaDoc target;
34
35     public ReflexiveInterceptor(Object JavaDoc target) {
36         this.target = target;
37     }
38
39     public InvocationResult invoke(Invocation invocation) throws Throwable JavaDoc {
40         try {
41
42             Method JavaDoc m = ProxyInvocation.getMethod(invocation);
43             Object JavaDoc args[] = ProxyInvocation.getArguments(invocation);
44             Object JavaDoc rc = m.invoke(target, args);
45             return new SimpleInvocationResult(true, rc);
46
47         } catch (InvocationTargetException JavaDoc e) {
48             Throwable JavaDoc t = e.getCause();
49             if (t instanceof Exception JavaDoc && t instanceof RuntimeException JavaDoc == false) {
50                 return new SimpleInvocationResult(false, (Exception JavaDoc)t);
51             } else {
52                 throw t;
53             }
54         }
55     }
56
57 }
Popular Tags