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    }