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: 684774 $
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 }