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 */
017package org.apache.camel.component.bean;
018
019import java.lang.reflect.Proxy;
020
021import org.apache.camel.Endpoint;
022import org.apache.camel.Producer;
023import org.apache.camel.util.ServiceHelper;
024
025/**
026 * Create a dynamic proxy for a given interface and endpoint that sends the parameter object to the endpoint and optionally
027 * receives a reply. Unlike the ProxyHelper this works only with methods that have only one parameter.
028 */
029public final class PojoProxyHelper {
030
031    private PojoProxyHelper() {
032    }
033
034    @SuppressWarnings("unchecked")
035    public static <T> T createProxy(Endpoint endpoint, Class<?>... interfaceClasses) throws Exception {
036        Producer producer = endpoint.createProducer();
037        // ensure the producer is started
038        ServiceHelper.startService(producer);
039        return (T)Proxy.newProxyInstance(ProxyHelper.getClassLoader(interfaceClasses), interfaceClasses.clone(), new PojoMessageInvocationHandler(endpoint, producer));
040    }
041}