001/* 002 * Copyright 2002-2018 the original author or authors. 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * https://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package org.springframework.transaction.annotation; 018 019import java.io.Serializable; 020import java.lang.reflect.AnnotatedElement; 021import java.util.ArrayList; 022import java.util.List; 023 024import org.springframework.core.annotation.AnnotatedElementUtils; 025import org.springframework.core.annotation.AnnotationAttributes; 026import org.springframework.core.annotation.AnnotationUtils; 027import org.springframework.transaction.interceptor.NoRollbackRuleAttribute; 028import org.springframework.transaction.interceptor.RollbackRuleAttribute; 029import org.springframework.transaction.interceptor.RuleBasedTransactionAttribute; 030import org.springframework.transaction.interceptor.TransactionAttribute; 031 032/** 033 * Strategy implementation for parsing Spring's {@link Transactional} annotation. 034 * 035 * @author Juergen Hoeller 036 * @since 2.5 037 */ 038@SuppressWarnings("serial") 039public class SpringTransactionAnnotationParser implements TransactionAnnotationParser, Serializable { 040 041 @Override 042 public TransactionAttribute parseTransactionAnnotation(AnnotatedElement element) { 043 AnnotationAttributes attributes = AnnotatedElementUtils.getMergedAnnotationAttributes( 044 element, Transactional.class); 045 if (attributes != null) { 046 return parseTransactionAnnotation(attributes); 047 } 048 else { 049 return null; 050 } 051 } 052 053 public TransactionAttribute parseTransactionAnnotation(Transactional ann) { 054 return parseTransactionAnnotation(AnnotationUtils.getAnnotationAttributes(ann, false, false)); 055 } 056 057 protected TransactionAttribute parseTransactionAnnotation(AnnotationAttributes attributes) { 058 RuleBasedTransactionAttribute rbta = new RuleBasedTransactionAttribute(); 059 060 Propagation propagation = attributes.getEnum("propagation"); 061 rbta.setPropagationBehavior(propagation.value()); 062 Isolation isolation = attributes.getEnum("isolation"); 063 rbta.setIsolationLevel(isolation.value()); 064 rbta.setTimeout(attributes.getNumber("timeout").intValue()); 065 rbta.setReadOnly(attributes.getBoolean("readOnly")); 066 rbta.setQualifier(attributes.getString("value")); 067 068 List<RollbackRuleAttribute> rollbackRules = new ArrayList<RollbackRuleAttribute>(); 069 for (Class<?> rbRule : attributes.getClassArray("rollbackFor")) { 070 rollbackRules.add(new RollbackRuleAttribute(rbRule)); 071 } 072 for (String rbRule : attributes.getStringArray("rollbackForClassName")) { 073 rollbackRules.add(new RollbackRuleAttribute(rbRule)); 074 } 075 for (Class<?> rbRule : attributes.getClassArray("noRollbackFor")) { 076 rollbackRules.add(new NoRollbackRuleAttribute(rbRule)); 077 } 078 for (String rbRule : attributes.getStringArray("noRollbackForClassName")) { 079 rollbackRules.add(new NoRollbackRuleAttribute(rbRule)); 080 } 081 rbta.setRollbackRules(rollbackRules); 082 083 return rbta; 084 } 085 086 087 @Override 088 public boolean equals(Object other) { 089 return (this == other || other instanceof SpringTransactionAnnotationParser); 090 } 091 092 @Override 093 public int hashCode() { 094 return SpringTransactionAnnotationParser.class.hashCode(); 095 } 096 097}