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.apache.camel.CamelContext;
020 import org.apache.camel.CamelContextAware;
021 import org.apache.camel.Consumer;
022 import org.apache.camel.Endpoint;
023 import org.apache.camel.component.bean.BeanProcessor;
024 import org.apache.camel.spring.util.CamelContextResolverHelper;
025 import org.apache.camel.util.CamelContextHelper;
026 import org.springframework.beans.BeansException;
027 import org.springframework.beans.factory.DisposableBean;
028 import org.springframework.beans.factory.FactoryBean;
029 import org.springframework.beans.factory.InitializingBean;
030 import org.springframework.context.ApplicationContext;
031 import org.springframework.context.ApplicationContextAware;
032 import org.springframework.remoting.support.RemoteExporter;
033
034 import static org.apache.camel.util.ObjectHelper.notNull;
035
036 /**
037 * A {@link FactoryBean} to create a proxy to a service exposing a given {@link #getServiceInterface()}
038 */
039 public class CamelServiceExporter extends RemoteExporter implements InitializingBean, DisposableBean, ApplicationContextAware, CamelContextAware {
040 private String uri;
041 private CamelContext camelContext;
042 private String camelContextId;
043 private Consumer consumer;
044 private String serviceRef;
045 private ApplicationContext applicationContext;
046
047 public String getUri() {
048 return uri;
049 }
050
051 public void setUri(String uri) {
052 this.uri = uri;
053 }
054
055 public CamelContext getCamelContext() {
056 return camelContext;
057 }
058
059 public void setCamelContext(CamelContext camelContext) {
060 this.camelContext = camelContext;
061 }
062
063 public void setCamelContextId(String camelContextId) {
064 this.camelContextId = camelContextId;
065 }
066
067 public String getServiceRef() {
068 return serviceRef;
069 }
070
071 public void setServiceRef(String serviceRef) {
072 this.serviceRef = serviceRef;
073 }
074
075 public ApplicationContext getApplicationContext() {
076 return applicationContext;
077 }
078
079 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
080 this.applicationContext = applicationContext;
081 }
082
083 public void afterPropertiesSet() throws Exception {
084 // lets bind the URI to a pojo
085 notNull(uri, "uri");
086 if (camelContext == null && camelContextId != null) {
087 camelContext = CamelContextResolverHelper.getCamelContextWithId(applicationContext, camelContextId);
088 }
089 notNull(camelContext, "camelContext");
090 if (serviceRef != null && getService() == null && applicationContext != null) {
091 setService(applicationContext.getBean(serviceRef));
092 }
093
094 Endpoint endpoint = CamelContextHelper.getMandatoryEndpoint(camelContext, uri);
095 notNull(getService(), "service");
096 Object proxy = getProxyForService();
097
098 consumer = endpoint.createConsumer(new BeanProcessor(proxy, camelContext));
099 consumer.start();
100 }
101
102 public void destroy() throws Exception {
103 if (consumer != null) {
104 consumer.stop();
105 }
106 }
107
108 }