| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.aries.jpa.cdi; |
| |
| import javax.enterprise.context.ApplicationScoped; |
| import javax.enterprise.event.Observes; |
| import javax.enterprise.inject.spi.AfterBeanDiscovery; |
| import javax.enterprise.inject.spi.AnnotatedMethod; |
| import javax.enterprise.inject.spi.AnnotatedType; |
| import javax.enterprise.inject.spi.BeanManager; |
| import javax.enterprise.inject.spi.BeforeBeanDiscovery; |
| import javax.enterprise.inject.spi.Extension; |
| import javax.enterprise.inject.spi.ProcessManagedBean; |
| import javax.transaction.Transactional; |
| import java.lang.reflect.Method; |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| @ApplicationScoped |
| public class TransactionExtension implements Extension { |
| |
| private Map<Method, Transactional> transactionAttributes; |
| |
| public TransactionExtension() { |
| transactionAttributes = new HashMap<>(); |
| } |
| |
| <X> void processBean(@Observes ProcessManagedBean<X> event) { |
| AnnotatedType<X> annotatedType = event.getAnnotatedBeanClass(); |
| Transactional classTx = annotatedType.getAnnotation(Transactional.class); |
| for (AnnotatedMethod<? super X> am : annotatedType.getMethods()) { |
| Transactional methodTx = am.getAnnotation(Transactional.class); |
| if (classTx != null || methodTx != null) { |
| Method method = am.getJavaMember(); |
| Transactional attrType = mergeTransactionAttributes(classTx, methodTx); |
| transactionAttributes.put(method, attrType); |
| } |
| } |
| } |
| |
| void beforeBeanDiscovery(@Observes BeforeBeanDiscovery event, BeanManager manager) { |
| event.addAnnotatedType(manager.createAnnotatedType(TransactionSupport.class)); |
| event.addAnnotatedType(manager.createAnnotatedType(TransactionalInterceptor.class)); |
| event.addInterceptorBinding(Transactional.class); |
| } |
| |
| void afterBeanDiscovered(@Observes AfterBeanDiscovery event, BeanManager beanManager) { |
| event.addContext(new TransactionalContext(beanManager)); |
| } |
| |
| private Transactional mergeTransactionAttributes(Transactional classAttribute, Transactional methodAttribute) { |
| return methodAttribute != null ? methodAttribute : classAttribute; |
| } |
| |
| Transactional getTransactionAttribute(Method method) { |
| return transactionAttributes.get(method); |
| } |
| |
| } |