001/*
002 *  Copyright 2013 Christopher Pheby
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 */
016package org.jadira.reflection.access.asm;
017
018import java.lang.reflect.Method;
019
020import org.jadira.reflection.access.api.MethodAccess;
021
022public class AsmMethodAccess<C> implements MethodAccess<C> {
023
024        private Method method;
025        private AsmClassAccess<C> classAccess;
026        private Class<C> declaringClass;
027        private Class<?> returnType;
028        
029        @SuppressWarnings("unchecked")
030        private AsmMethodAccess(AsmClassAccess<C> classAccess, Method m) {
031                                        
032                this.classAccess = classAccess;
033                this.method = m;
034                this.declaringClass = (Class<C>) m.getDeclaringClass(); 
035                
036                this.returnType = (Class<?>) m.getReturnType();
037        }
038        
039        public static final <C> AsmMethodAccess<C> get(AsmClassAccess<C> classAccess, Method m) {
040                return new AsmMethodAccess<C>(classAccess, m);
041        }
042        
043        @Override
044        public Class<C> declaringClass() {
045                return declaringClass;
046        }
047
048        @Override
049        public Class<?> returnClass() {
050                return returnType;
051        }
052
053        @Override
054        public Method method() {
055                return method;
056        }
057        
058        @Override
059        public Object invoke(Object target, Object... args) throws IllegalArgumentException {
060                return classAccess.invokeMethod(target, method, args);
061        }
062}