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.ErrorHandlerBuilderSupport;
021 import org.apache.camel.processor.ErrorHandlerSupport;
022 import org.apache.camel.processor.exceptionpolicy.ExceptionPolicyStrategy;
023 import org.apache.camel.spi.RouteContext;
024 import org.apache.camel.util.ObjectHelper;
025 import org.springframework.beans.factory.InitializingBean;
026 import org.springframework.transaction.support.TransactionTemplate;
027
028 /**
029 * An error handler which will roll the exception back if there is an error
030 * rather than using the dead letter channel and retry logic.
031 *
032 * A delay is also used after a rollback
033 *
034 * @version $Revision: 765920 $
035 */
036 public class TransactionErrorHandlerBuilder extends ErrorHandlerBuilderSupport implements InitializingBean {
037
038 private TransactionTemplate transactionTemplate;
039 private ExceptionPolicyStrategy exceptionPolicyStrategy = ErrorHandlerSupport.createDefaultExceptionPolicyStrategy();
040
041 public TransactionErrorHandlerBuilder() {
042 }
043
044 public TransactionTemplate getTransactionTemplate() {
045 return transactionTemplate;
046 }
047
048 public boolean supportTransacted() {
049 return true;
050 }
051
052 public Processor createErrorHandler(RouteContext routeContext, Processor processor) throws Exception {
053 TransactionErrorHandler answer = new TransactionErrorHandler(transactionTemplate, processor, exceptionPolicyStrategy);
054 configure(answer);
055 return answer;
056 }
057
058 public void afterPropertiesSet() throws Exception {
059 ObjectHelper.notNull(transactionTemplate, "transactionTemplate");
060 }
061
062 public void setTransactionTemplate(TransactionTemplate transactionTemplate) {
063 this.transactionTemplate = transactionTemplate;
064 }
065
066 public void setSpringTransactionPolicy(SpringTransactionPolicy policy) {
067 this.transactionTemplate = policy.getTransactionTemplate();
068 }
069
070 /**
071 * Sets the exception policy strategy to use for resolving the {@link org.apache.camel.model.OnExceptionDefinition}
072 * to use for a given thrown exception
073 */
074 public ExceptionPolicyStrategy getExceptionPolicyStrategy() {
075 return exceptionPolicyStrategy;
076 }
077
078 public void setExceptionPolicyStrategy(ExceptionPolicyStrategy exceptionPolicyStrategy) {
079 this.exceptionPolicyStrategy = exceptionPolicyStrategy;
080 }
081
082 // Builder methods
083 // -------------------------------------------------------------------------
084
085 /**
086 * Sets the exception policy to use
087 */
088 public TransactionErrorHandlerBuilder exceptionPolicyStrategy(ExceptionPolicyStrategy exceptionPolicyStrategy) {
089 setExceptionPolicyStrategy(exceptionPolicyStrategy);
090 return this;
091 }
092
093 }