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.spring.remoting; 018 019import org.apache.camel.CamelContext; 020import org.apache.camel.CamelContextAware; 021import org.apache.camel.Consumer; 022import org.apache.camel.Endpoint; 023import org.apache.camel.component.bean.BeanProcessor; 024import org.apache.camel.spring.util.CamelContextResolverHelper; 025import org.apache.camel.util.CamelContextHelper; 026import org.apache.camel.util.ObjectHelper; 027import org.springframework.beans.BeansException; 028import org.springframework.beans.factory.DisposableBean; 029import org.springframework.beans.factory.FactoryBean; 030import org.springframework.beans.factory.InitializingBean; 031import org.springframework.context.ApplicationContext; 032import org.springframework.context.ApplicationContextAware; 033import org.springframework.remoting.support.RemoteExporter; 034 035import static org.apache.camel.util.ObjectHelper.notNull; 036 037/** 038 * A {@link FactoryBean} to create a proxy to a service exposing a given {@link #getServiceInterface()} 039 */ 040public class CamelServiceExporter extends RemoteExporter implements InitializingBean, DisposableBean, ApplicationContextAware, CamelContextAware { 041 private String uri; 042 private CamelContext camelContext; 043 private String camelContextId; 044 private Consumer consumer; 045 private String serviceRef; 046 private ApplicationContext applicationContext; 047 048 public String getUri() { 049 return uri; 050 } 051 052 public void setUri(String uri) { 053 this.uri = uri; 054 } 055 056 public CamelContext getCamelContext() { 057 return camelContext; 058 } 059 060 public void setCamelContext(CamelContext camelContext) { 061 this.camelContext = camelContext; 062 } 063 064 public void setCamelContextId(String camelContextId) { 065 this.camelContextId = camelContextId; 066 } 067 068 public String getServiceRef() { 069 return serviceRef; 070 } 071 072 public void setServiceRef(String serviceRef) { 073 this.serviceRef = serviceRef; 074 } 075 076 public ApplicationContext getApplicationContext() { 077 return applicationContext; 078 } 079 080 public void setApplicationContext(ApplicationContext applicationContext) throws BeansException { 081 this.applicationContext = applicationContext; 082 } 083 084 public void afterPropertiesSet() throws Exception { 085 // lets bind the URI to a pojo 086 notNull(uri, "uri"); 087 // Always resolve the camel context by using the camelContextID 088 if (ObjectHelper.isNotEmpty(camelContextId)) { 089 camelContext = CamelContextResolverHelper.getCamelContextWithId(applicationContext, camelContextId); 090 } 091 notNull(camelContext, "camelContext"); 092 if (serviceRef != null && getService() == null && applicationContext != null) { 093 setService(applicationContext.getBean(serviceRef)); 094 } 095 096 Endpoint endpoint = CamelContextHelper.getMandatoryEndpoint(camelContext, uri); 097 notNull(getService(), "service"); 098 Object proxy = getProxyForService(); 099 100 consumer = endpoint.createConsumer(new BeanProcessor(proxy, camelContext)); 101 consumer.start(); 102 } 103 104 public void destroy() throws Exception { 105 if (consumer != null) { 106 consumer.stop(); 107 } 108 } 109 110}