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.spring.remoting; 018 019 import org.aopalliance.intercept.MethodInterceptor; 020 import org.aopalliance.intercept.MethodInvocation; 021 022 import org.apache.camel.CamelContext; 023 import org.apache.camel.CamelContextAware; 024 import org.apache.camel.Endpoint; 025 import org.apache.camel.Producer; 026 import org.apache.camel.component.bean.CamelInvocationHandler; 027 import org.apache.camel.component.bean.MethodInfoCache; 028 import org.apache.camel.util.CamelContextHelper; 029 030 import org.springframework.beans.factory.DisposableBean; 031 import org.springframework.beans.factory.InitializingBean; 032 033 import static org.apache.camel.util.ObjectHelper.notNull; 034 035 /** 036 * A Spring interceptor which sends a message exchange to an endpoint before the method is invoked 037 * 038 * @version $Revision: 45731 $ 039 */ 040 public class SendBeforeInterceptor implements MethodInterceptor, CamelContextAware, InitializingBean, DisposableBean { 041 private String uri; 042 private CamelContext camelContext; 043 private CamelInvocationHandler invocationHandler; 044 private Producer producer; 045 046 public Object invoke(MethodInvocation invocation) throws Throwable { 047 invocationHandler.invoke(invocation.getThis(), invocation.getMethod(), invocation.getArguments()); 048 return invocation.proceed(); 049 } 050 051 public void afterPropertiesSet() throws Exception { 052 notNull(uri, "uri"); 053 notNull(camelContext, "camelContext"); 054 055 Endpoint endpoint = CamelContextHelper.getMandatoryEndpoint(camelContext, uri); 056 producer = endpoint.createProducer(); 057 producer.start(); 058 invocationHandler = new CamelInvocationHandler(endpoint, producer, new MethodInfoCache(endpoint.getCamelContext())); 059 } 060 061 public void destroy() throws Exception { 062 if (producer != null) { 063 producer.stop(); 064 } 065 } 066 067 public void setCamelContext(CamelContext camelContext) { 068 this.camelContext = camelContext; 069 } 070 071 // Properties 072 //----------------------------------------------------------------------- 073 public String getUri() { 074 return uri; 075 } 076 077 public void setUri(String uri) { 078 this.uri = uri; 079 } 080 }