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1   /*
2    * $Id: ReflectionMetaMethod.java,v 1.6 2005/10/03 18:07:36 tug Exp $
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.Method;
40  import java.security.AccessController;
41  import java.security.PrivilegedAction;
42  
43  public class ReflectionMetaMethod extends MetaMethod {
44      private Method method;
45      boolean alreadySetAccessible;
46  
47      public ReflectionMetaMethod(Method method) {
48          super(method);
49          this.method = method;
50      }
51  
52      public Object invoke(Object object, Object[] arguments) throws Exception {
53      	if ( !alreadySetAccessible ) {
54  	    	AccessController.doPrivileged(new PrivilegedAction() {
55  	    		public Object run() {
56  	    			method.setAccessible(true);
57  	                return null;
58  	    		}
59  	    	});
60  	    	alreadySetAccessible = true;
61      	}
62  
63          //        System.out.println("About to invoke method: " + method);
64          //        System.out.println("Object: " + object);
65          //        System.out.println("Using arguments: " + InvokerHelper.toString(arguments));
66  
67          return method.invoke(object, arguments);
68      }
69  }