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.spi; 018 019 import org.apache.camel.Processor; 020 import org.apache.camel.builder.ErrorHandlerBuilder; 021 import org.apache.camel.builder.ErrorHandlerBuilderSupport; 022 import org.apache.camel.processor.DelayPolicy; 023 import org.apache.camel.processor.RedeliveryPolicy; 024 import org.apache.camel.spi.RouteContext; 025 import org.apache.camel.util.ObjectHelper; 026 import org.springframework.beans.factory.InitializingBean; 027 import org.springframework.transaction.support.TransactionTemplate; 028 029 /** 030 * An error handler which will roll the exception back if there is an error 031 * rather than using the dead letter channel and retry logic. 032 * 033 * A delay is also used after a rollback 034 * 035 * @version $Revision: 713123 $ 036 */ 037 public class TransactionErrorHandlerBuilder extends ErrorHandlerBuilderSupport implements Cloneable, InitializingBean { 038 039 private TransactionTemplate transactionTemplate; 040 private DelayPolicy delayPolicy = new DelayPolicy(); 041 042 public TransactionErrorHandlerBuilder() { 043 } 044 045 public TransactionTemplate getTransactionTemplate() { 046 return transactionTemplate; 047 } 048 049 public void setTransactionTemplate(TransactionTemplate transactionTemplate) { 050 this.transactionTemplate = transactionTemplate; 051 } 052 053 public DelayPolicy getDelayPolicy() { 054 return delayPolicy; 055 } 056 057 public void setDelayPolicy(DelayPolicy delayPolicy) { 058 this.delayPolicy = delayPolicy; 059 } 060 061 public ErrorHandlerBuilder copy() { 062 try { 063 return (ErrorHandlerBuilder) clone(); 064 } catch (CloneNotSupportedException e) { 065 throw new Error("Clone should be supported: " + e, e); 066 } 067 } 068 069 public Processor createErrorHandler(RouteContext routeContext, Processor processor) throws Exception { 070 return new TransactionInterceptor(processor, transactionTemplate, delayPolicy); 071 } 072 073 public void afterPropertiesSet() throws Exception { 074 ObjectHelper.notNull(transactionTemplate, "transactionTemplate"); 075 } 076 077 // Builder methods 078 // ------------------------------------------------------------------------- 079 080 public TransactionErrorHandlerBuilder delay(long delay) { 081 getDelayPolicy().delay(delay); 082 return this; 083 } 084 085 }