001    /*
002     * Copyright 2002-2004 The Apache Software Foundation
003     *
004     * Licensed under the Apache License, Version 2.0 (the "License");
005     * you may not use this file except in compliance with the License.
006     * You may obtain a copy of the License at
007     *
008     *     http://www.apache.org/licenses/LICENSE-2.0
009     *
010     * Unless required by applicable law or agreed to in writing, software
011     * distributed under the License is distributed on an "AS IS" BASIS,
012     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013     * See the License for the specific language governing permissions and
014     * limitations under the License.
015     */
016    package org.apache.commons.clazz.reflect.common;
017    
018    import java.lang.reflect.Method;
019    
020    import org.apache.commons.clazz.Clazz;
021    import org.apache.commons.clazz.ClazzAccessException;
022    import org.apache.commons.clazz.ClazzInstanceFactory;
023    
024    /**
025     * A wrapper for a static java method that returns an instance of the Clazz.
026     * 
027     * @author <a href="mailto:dmitri@apache.org">Dmitri Plotnikov</a>
028     * @version $Id: ReflectedMethodInstanceFactory.java 155436 2005-02-26 13:17:48Z dirkv $
029     */
030    public class ReflectedMethodInstanceFactory 
031            extends ReflectedMethodFeatureSupport 
032            implements ClazzInstanceFactory 
033    {
034        /**
035         * Constructor for ReflectedClazzProperty.
036         */
037        public ReflectedMethodInstanceFactory(
038                Clazz declaringClazz,
039                Method method) 
040        {
041            super(declaringClazz, method);
042        }
043    
044        public Object newInstance(Object[] parameters) {
045            try {
046                return getMethod().invoke(null, parameters);
047            }
048            catch (Throwable e) {
049                throw new ClazzAccessException(
050                    "Cannot invoke static method " + getSignature(),
051                    e);
052            }
053        }
054    }