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; 018 019import org.apache.camel.CamelContext; 020import org.apache.camel.builder.RouteBuilder; 021import org.apache.camel.spring.spi.SpringTransactionPolicy; 022import org.apache.camel.spring.spi.TransactionErrorHandlerBuilder; 023import org.springframework.context.ApplicationContext; 024import org.springframework.context.ApplicationContextAware; 025import org.springframework.transaction.PlatformTransactionManager; 026import org.springframework.transaction.support.TransactionTemplate; 027 028/** 029 * An extension of the {@link RouteBuilder} to provide some additional helper 030 * methods 031 * 032 * @deprecated use plain {@link RouteBuilder} 033 */ 034@Deprecated 035public abstract class SpringRouteBuilder extends RouteBuilder implements ApplicationContextAware { 036 private ApplicationContext applicationContext; 037 038 /** 039 * Looks up the bean with the given name in the application context and 040 * returns it, or throws an exception if the bean is not present or is not 041 * of the given type 042 * 043 * @param beanName the name of the bean in the application context 044 * @param type the type of the bean 045 * @return the bean 046 */ 047 public <T> T lookup(String beanName, Class<T> type) { 048 ApplicationContext context = getApplicationContext(); 049 return context.getBean(beanName, type); 050 } 051 052 /** 053 * Looks up the bean with the given type in the application context and 054 * returns it, or throws an exception if the bean is not present or there 055 * are multiple possible beans to choose from for the given type 056 * 057 * @param type the type of the bean 058 * @return the bean 059 */ 060 public <T> T lookup(Class<T> type) { 061 ApplicationContext context = getApplicationContext(); 062 return context.getBean(type); 063 } 064 065 /** 066 * Returns the application context which has been configured via the 067 * {@link #setApplicationContext(ApplicationContext)} method or from the 068 * underlying {@link SpringCamelContext} 069 */ 070 public ApplicationContext getApplicationContext() { 071 if (applicationContext == null) { 072 CamelContext camelContext = getContext(); 073 if (camelContext instanceof SpringCamelContext) { 074 SpringCamelContext springCamelContext = (SpringCamelContext)camelContext; 075 return springCamelContext.getApplicationContext(); 076 } else { 077 throw new IllegalArgumentException("This SpringBuilder is not being used with a SpringCamelContext and there is no applicationContext property configured"); 078 } 079 } 080 return applicationContext; 081 } 082 083 /** 084 * Sets the application context to use to lookup beans 085 */ 086 @Override 087 public void setApplicationContext(ApplicationContext applicationContext) { 088 this.applicationContext = applicationContext; 089 } 090 091 /** 092 * Creates a transaction error handler that will lookup in application context for 093 * an exiting transaction manager. 094 * 095 * @return the created error handler 096 */ 097 public TransactionErrorHandlerBuilder transactionErrorHandler() { 098 return new TransactionErrorHandlerBuilder(); 099 } 100 101 /** 102 * Creates a transaction error handler. 103 * 104 * @param policy using this transaction policy (eg: required, supports, ...) 105 * @return the created error handler 106 */ 107 public TransactionErrorHandlerBuilder transactionErrorHandler(SpringTransactionPolicy policy) { 108 return transactionErrorHandler(policy.getTransactionTemplate()); 109 } 110 111 /** 112 * Creates a transaction error handler. 113 * 114 * @param template the spring transaction template 115 * @return the created error handler 116 */ 117 public TransactionErrorHandlerBuilder transactionErrorHandler(TransactionTemplate template) { 118 TransactionErrorHandlerBuilder answer = new TransactionErrorHandlerBuilder(); 119 answer.setTransactionTemplate(template); 120 return answer; 121 } 122 123 /** 124 * Creates a transaction error handler. 125 * 126 * @param transactionManager the spring transaction manager 127 * @return the created error handler 128 */ 129 public TransactionErrorHandlerBuilder transactionErrorHandler(PlatformTransactionManager transactionManager) { 130 TransactionTemplate template = new TransactionTemplate(transactionManager); 131 return transactionErrorHandler(template); 132 } 133 134}