1 /*
2 * $Id: ReflectionMetaMethod.java 4254 2006-11-23 20:38:19Z blackdrag $
3 *
4 * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
5 *
6 * Redistribution and use of this software and associated documentation
7 * ("Software"), with or without modification, are permitted provided that the
8 * following conditions are met:
9 * 1. Redistributions of source code must retain copyright statements and
10 * notices. Redistributions must also contain a copy of this document.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name "groovy" must not be used to endorse or promote products
15 * derived from this Software without prior written permission of The Codehaus.
16 * For written permission, please contact info@codehaus.org.
17 * 4. Products derived from this Software may not be called "groovy" nor may
18 * "groovy" appear in their names without prior written permission of The
19 * Codehaus. "groovy" is a registered trademark of The Codehaus.
20 * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/
21 *
22 * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY
23 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
24 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
25 * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR
26 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
32 * DAMAGE.
33 *
34 */
35 package org.codehaus.groovy.runtime;
36
37 import groovy.lang.MetaMethod;
38
39 import java.lang.reflect.InvocationTargetException;
40 import java.lang.reflect.Method;
41 import java.security.AccessController;
42 import java.security.PrivilegedAction;
43
44 public class ReflectionMetaMethod extends MetaMethod {
45 private Method method;
46 boolean alreadySetAccessible;
47
48 public ReflectionMetaMethod(Method method) {
49 super(method);
50 this.method = method;
51 }
52
53 public Object invoke(Object object, Object[] arguments) {
54 if ( !alreadySetAccessible ) {
55 AccessController.doPrivileged(new PrivilegedAction() {
56 public Object run() {
57 method.setAccessible(true);
58 return null;
59 }
60 });
61 alreadySetAccessible = true;
62 }
63
64 // System.out.println("About to invoke method: " + method);
65 // System.out.println("Object: " + object);
66 // System.out.println("Using arguments: " + InvokerHelper.toString(arguments));
67
68 try {
69 return method.invoke(object, arguments);
70 } catch (IllegalArgumentException e) {
71 throw new InvokerInvocationException(e);
72 } catch (IllegalAccessException e) {
73 throw new InvokerInvocationException(e);
74 } catch (InvocationTargetException e) {
75 throw new InvokerInvocationException(e);
76 }
77 }
78 }