001 /**
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.camel.component.bean;
018
019 import java.lang.reflect.InvocationHandler;
020 import java.lang.reflect.InvocationTargetException;
021 import java.lang.reflect.Method;
022
023 import org.apache.camel.Endpoint;
024 import org.apache.camel.Producer;
025
026 /**
027 * An {@link java.lang.reflect.InvocationHandler} which invokes a
028 * message exchange on a camel {@link Endpoint}
029 *
030 * @version $Revision: $
031 */
032 public class CamelInvocationHandler implements InvocationHandler {
033 private final Endpoint endpoint;
034 private final Producer producer;
035
036 public CamelInvocationHandler(Endpoint endpoint, Producer producer) {
037 this.endpoint = endpoint;
038 this.producer = producer;
039 }
040
041 public Object invoke(Object proxy, Method method, Object[] args) throws Throwable {
042 BeanInvocation invocation = new BeanInvocation(proxy, method, args);
043 BeanExchange exchange = new BeanExchange(endpoint.getContext());
044 exchange.setInvocation(invocation);
045
046 producer.process(exchange);
047 Throwable fault = exchange.getException();
048 if (fault != null) {
049 throw new InvocationTargetException(fault);
050 }
051 return exchange.getOut().getBody();
052 }
053 }