001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one
003     * or more contributor license agreements.  See the NOTICE file
004     * distributed with this work for additional information
005     * regarding copyright ownership.  The ASF licenses this file
006     * to you under the Apache License, Version 2.0 (the
007     * "License"); you may not use this file except in compliance
008     * with the License.  You may obtain a copy of the License at
009     *
010     *  http://www.apache.org/licenses/LICENSE-2.0
011     *
012     * Unless required by applicable law or agreed to in writing,
013     * software distributed under the License is distributed on an
014     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015     * KIND, either express or implied.  See the License for the
016     * specific language governing permissions and limitations
017     * under the License.
018     */
019    
020    
021    package org.apache.geronimo.j2ee.annotation;
022    
023    import java.io.Serializable;
024    import java.lang.reflect.InvocationTargetException;
025    import java.lang.reflect.Method;
026    
027    /**
028     * @version $Rev: 516141 $ $Date: 2007-03-08 13:45:05 -0500 (Thu, 08 Mar 2007) $
029     */
030    public class LifecycleMethod implements Serializable {
031    
032        private final String targetClassName;
033        private final String methodName;
034    
035    
036        public LifecycleMethod(String targetClassName, String methodName) {
037            this.targetClassName = targetClassName;
038            this.methodName = methodName;
039        }
040    
041        public String getTargetClassName() {
042            return targetClassName;
043        }
044    
045        public String getMethodName() {
046            return methodName;
047        }
048    
049        public void call(Object o, Class clazz) throws IllegalAccessException, InvocationTargetException {
050            if (clazz == null) {
051                clazz = o.getClass();
052            }
053            Method m = null;
054            while (m == null && clazz != null && clazz != Object.class) {
055                try {
056                    m = clazz.getDeclaredMethod(methodName);
057                } catch (NoSuchMethodException e) {
058                    clazz = clazz.getSuperclass();
059                }
060    
061            }
062            if (m == null) {
063                throw new AssertionError("We checked that the class had this method at deploy time. expected class: " + targetClassName + ", actual class: " + clazz.getName() + ", method: " + methodName);
064            }
065            if (!m.isAccessible()) {
066                try {
067                    m.setAccessible(true);
068                    m.invoke(o);
069                } finally {
070                    m.setAccessible(false);
071                }
072            } else {
073                m.invoke(o);
074            }
075        }
076    }