001 /* 002 * $Id: ReflectionMetaMethod.java 4254 2006-11-23 20:38:19Z blackdrag $ 003 * 004 * Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved. 005 * 006 * Redistribution and use of this software and associated documentation 007 * ("Software"), with or without modification, are permitted provided that the 008 * following conditions are met: 009 * 1. Redistributions of source code must retain copyright statements and 010 * notices. Redistributions must also contain a copy of this document. 011 * 2. Redistributions in binary form must reproduce the above copyright 012 * notice, this list of conditions and the following disclaimer in the 013 * documentation and/or other materials provided with the distribution. 014 * 3. The name "groovy" must not be used to endorse or promote products 015 * derived from this Software without prior written permission of The Codehaus. 016 * For written permission, please contact info@codehaus.org. 017 * 4. Products derived from this Software may not be called "groovy" nor may 018 * "groovy" appear in their names without prior written permission of The 019 * Codehaus. "groovy" is a registered trademark of The Codehaus. 020 * 5. Due credit should be given to The Codehaus - http://groovy.codehaus.org/ 021 * 022 * THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS ``AS IS'' AND ANY 023 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 024 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 025 * DISCLAIMED. IN NO EVENT SHALL THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR 026 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 028 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 029 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH 032 * DAMAGE. 033 * 034 */ 035 package org.codehaus.groovy.runtime; 036 037 import groovy.lang.MetaMethod; 038 039 import java.lang.reflect.InvocationTargetException; 040 import java.lang.reflect.Method; 041 import java.security.AccessController; 042 import java.security.PrivilegedAction; 043 044 public class ReflectionMetaMethod extends MetaMethod { 045 private Method method; 046 boolean alreadySetAccessible; 047 048 public ReflectionMetaMethod(Method method) { 049 super(method); 050 this.method = method; 051 } 052 053 public Object invoke(Object object, Object[] arguments) { 054 if ( !alreadySetAccessible ) { 055 AccessController.doPrivileged(new PrivilegedAction() { 056 public Object run() { 057 method.setAccessible(true); 058 return null; 059 } 060 }); 061 alreadySetAccessible = true; 062 } 063 064 // System.out.println("About to invoke method: " + method); 065 // System.out.println("Object: " + object); 066 // System.out.println("Using arguments: " + InvokerHelper.toString(arguments)); 067 068 try { 069 return method.invoke(object, arguments); 070 } catch (IllegalArgumentException e) { 071 throw new InvokerInvocationException(e); 072 } catch (IllegalAccessException e) { 073 throw new InvokerInvocationException(e); 074 } catch (InvocationTargetException e) { 075 throw new InvokerInvocationException(e); 076 } 077 } 078 }