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Java > Open Source Codes > org > apache > geronimo > gbean > runtime > FastMethodInvoker


1 /**
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. 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.gbean.runtime;
19
20 import java.lang.reflect.InvocationTargetException JavaDoc;
21 import java.lang.reflect.Method JavaDoc;
22
23 import net.sf.cglib.reflect.FastClass;
24 import net.sf.cglib.reflect.FastMethod;
25
26 /**
27  * @version $Rev: 476049 $ $Date: 2006-11-16 23:35:17 -0500 (Thu, 16 Nov 2006) $
28  */
29 public final class FastMethodInvoker implements MethodInvoker {
30     private final FastMethod method;
31
32     public FastMethodInvoker(Method JavaDoc method) {
33         this.method = FastClass.create(method.getDeclaringClass()).getMethod(method);
34     }
35
36     public Object JavaDoc invoke(final Object JavaDoc target, final Object JavaDoc[] arguments) throws Exception JavaDoc {
37         try {
38             return method.invoke(target, arguments);
39         } catch (InvocationTargetException JavaDoc e) {
40             Throwable JavaDoc cause = e.getTargetException();
41             if (cause instanceof Exception JavaDoc) {
42                 throw (Exception JavaDoc) cause;
43             } else if (cause instanceof Error JavaDoc) {
44                 throw (Error JavaDoc) cause;
45             }
46             throw e;
47         }
48     }
49 }
50
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