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.processor; 018 019import org.apache.camel.AsyncCallback; 020import org.apache.camel.AsyncProcessor; 021import org.apache.camel.Exchange; 022import org.apache.camel.RollbackExchangeException; 023import org.apache.camel.Traceable; 024import org.apache.camel.spi.IdAware; 025import org.apache.camel.support.ServiceSupport; 026import org.apache.camel.util.AsyncProcessorHelper; 027 028/** 029 * Processor for marking an {@link org.apache.camel.Exchange} to rollback. 030 * 031 * @version 032 */ 033public class RollbackProcessor extends ServiceSupport implements AsyncProcessor, Traceable, IdAware { 034 035 private String id; 036 private boolean markRollbackOnly; 037 private boolean markRollbackOnlyLast; 038 private String message; 039 040 public RollbackProcessor() { 041 } 042 043 public RollbackProcessor(String message) { 044 this.message = message; 045 } 046 047 public void process(Exchange exchange) throws Exception { 048 AsyncProcessorHelper.process(this, exchange); 049 } 050 051 public boolean process(Exchange exchange, AsyncCallback callback) { 052 if (isMarkRollbackOnlyLast()) { 053 // only mark the last route (current) as rollback 054 // this is needed when you have multiple transactions in play 055 exchange.setProperty(Exchange.ROLLBACK_ONLY_LAST, Boolean.TRUE); 056 } else { 057 // default to mark the entire route as rollback 058 exchange.setProperty(Exchange.ROLLBACK_ONLY, Boolean.TRUE); 059 } 060 061 if (markRollbackOnly || markRollbackOnlyLast) { 062 // do not do anything more as we should only mark the rollback 063 callback.done(true); 064 return true; 065 } 066 067 // throw exception to rollback 068 if (message != null) { 069 exchange.setException(new RollbackExchangeException(message, exchange)); 070 } else { 071 exchange.setException(new RollbackExchangeException(exchange)); 072 } 073 074 callback.done(true); 075 return true; 076 } 077 078 @Override 079 public String toString() { 080 if (message != null) { 081 return "Rollback[" + message + "]"; 082 } else { 083 return "Rollback"; 084 } 085 } 086 087 public String getTraceLabel() { 088 return "rollback"; 089 } 090 091 public String getId() { 092 return id; 093 } 094 095 public void setId(String id) { 096 this.id = id; 097 } 098 099 public String getMessage() { 100 return message; 101 } 102 103 public boolean isMarkRollbackOnly() { 104 return markRollbackOnly; 105 } 106 107 public void setMarkRollbackOnly(boolean markRollbackOnly) { 108 this.markRollbackOnly = markRollbackOnly; 109 } 110 111 public boolean isMarkRollbackOnlyLast() { 112 return markRollbackOnlyLast; 113 } 114 115 public void setMarkRollbackOnlyLast(boolean markRollbackOnlyLast) { 116 this.markRollbackOnlyLast = markRollbackOnlyLast; 117 } 118 119 @Override 120 protected void doStart() throws Exception { 121 // noop 122 } 123 124 @Override 125 protected void doStop() throws Exception { 126 // noop 127 } 128}