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.ExchangePattern; 025 import org.apache.camel.Producer; 026 027 /** 028 * An {@link java.lang.reflect.InvocationHandler} which invokes a 029 * message exchange on a camel {@link Endpoint} 030 * 031 * @version $Revision: 41278 $ 032 */ 033 public class CamelInvocationHandler implements InvocationHandler { 034 private final Endpoint endpoint; 035 private final Producer producer; 036 037 public CamelInvocationHandler(Endpoint endpoint, Producer producer) { 038 this.endpoint = endpoint; 039 this.producer = producer; 040 } 041 042 public Object invoke(Object proxy, Method method, Object[] args) throws Throwable { 043 BeanInvocation invocation = new BeanInvocation(method, args); 044 BeanExchange exchange = new BeanExchange(endpoint.getCamelContext(), ExchangePattern.InOut); 045 exchange.setInvocation(invocation); 046 047 producer.process(exchange); 048 Throwable fault = exchange.getException(); 049 if (fault != null) { 050 throw new InvocationTargetException(fault); 051 } 052 return exchange.getOut(true).getBody(); 053 } 054 } 055