zhfeng commented on a change in pull request #1411: URL: https://github.com/apache/camel-quarkus/pull/1411#discussion_r444025178
########## File path: extensions/jta/runtime/src/main/java/org/apache/camel/quarkus/component/jta/TransactionalJtaTransactionPolicy.java ########## @@ -0,0 +1,105 @@ +/* + * 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.camel.quarkus.component.jta; + +import javax.inject.Inject; +import javax.transaction.HeuristicMixedException; +import javax.transaction.HeuristicRollbackException; +import javax.transaction.RollbackException; +import javax.transaction.Status; +import javax.transaction.SystemException; +import javax.transaction.Transaction; +import javax.transaction.TransactionManager; + +import org.apache.camel.CamelException; +import org.apache.camel.jta.JtaTransactionPolicy; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +/** + * Helper methods for transaction handling + */ +public abstract class TransactionalJtaTransactionPolicy extends JtaTransactionPolicy { + + private static final Logger LOG = LoggerFactory.getLogger(TransactionalJtaTransactionPolicy.class); + + @Inject + TransactionManager transactionManager; + + protected void runWithTransaction(final Runnable runnable, final boolean isNew) throws Throwable { + if (isNew) { + begin(); + } + try { + runnable.run(); + } catch (Throwable e) { + rollback(isNew); + throw e; + } + if (isNew) { + commit(); + } + } + + private void begin() throws Exception { + transactionManager.begin(); + } + + private void commit() throws Exception { + try { + transactionManager.commit(); + } catch (HeuristicMixedException | HeuristicRollbackException | RollbackException | SystemException e) { + throw new CamelException("Unable to commit transaction", e); + } catch (Exception | Error e) { + rollback(true); + throw e; + } + } + + protected void rollback(boolean isNew) throws Exception { + try { + if (isNew) { + transactionManager.rollback(); + } else { + transactionManager.setRollbackOnly(); + } + } catch (Throwable e) { + LOG.warn("Could not rollback transaction!", e); + } + } + + protected Transaction suspendTransaction() throws Exception { + return transactionManager.suspend(); + } + + protected void resumeTransaction(final Transaction suspendedTransaction) { + if (suspendedTransaction == null) { + return; + } + + try { + transactionManager.resume(suspendedTransaction); + } catch (Throwable e) { + LOG.warn("Could not resume transaction!", e); + } + } + + protected boolean hasActiveTransaction() throws Exception { + return transactionManager.getStatus() != Status.STATUS_MARKED_ROLLBACK + && transactionManager.getStatus() != Status.STATUS_NO_TRANSACTION; + } Review comment: hmm, it makes sense. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
