001 /*
002 * $Id: ReflectionMetaMethod.java,v 1.4 2004/08/27 15:48:08 goetze Exp $
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.Method;
040 import java.security.AccessController;
041 import java.security.PrivilegedAction;
042
043 public class ReflectionMetaMethod extends MetaMethod {
044 private Method method;
045 boolean alreadySetAccessible;
046
047 public ReflectionMetaMethod(Method method) {
048 super(method);
049 this.method = method;
050 }
051
052 public Object invoke(Object object, Object[] arguments) throws Exception {
053 if ( !alreadySetAccessible ) {
054 AccessController.doPrivileged(new PrivilegedAction() {
055 public Object run() {
056 method.setAccessible(true);
057 return null;
058 }
059 });
060 alreadySetAccessible = true;
061 }
062
063 // System.out.println("About to invoke method: " + method);
064 // System.out.println("Object: " + object);
065 // System.out.println("Using arguments: " + InvokerHelper.toString(arguments));
066
067 return method.invoke(object, arguments);
068 }
069 }