| /* |
| * 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.openjpa.jta; |
| |
| import java.util.ArrayList; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Set; |
| |
| import javax.transaction.HeuristicMixedException; |
| import javax.transaction.HeuristicRollbackException; |
| import javax.transaction.RollbackException; |
| import javax.transaction.Status; |
| import javax.transaction.Synchronization; |
| import javax.transaction.SystemException; |
| import javax.transaction.Transaction; |
| import javax.transaction.xa.XAResource; |
| |
| /** |
| * A transaction for testing. |
| * |
| * @author Pinaki Poddar |
| * |
| */ |
| public class SimpleTransaction implements Transaction { |
| private final Set<Synchronization> synchs = new HashSet<>(); |
| private Throwable rollbackCause; |
| private volatile int status = Status.STATUS_UNKNOWN; |
| |
| /** |
| * Commits this transaction. |
| */ |
| @Override |
| public void commit() throws HeuristicMixedException, HeuristicRollbackException, RollbackException, |
| SecurityException, SystemException { |
| if (status == Status.STATUS_MARKED_ROLLBACK) |
| throw new RuntimeException(this + " can not commit. Marked for rollback"); |
| status = Status.STATUS_COMMITTING; |
| List<Throwable> errors = new ArrayList<>(); |
| for (Synchronization synch : synchs) { |
| try { |
| synch.beforeCompletion(); |
| } catch (Throwable t) { |
| errors.add(t); |
| } |
| } |
| // do nothing |
| status = errors.isEmpty() ? Status.STATUS_COMMITTED : Status.STATUS_ROLLEDBACK; |
| for (Synchronization synch : synchs) { |
| try { |
| synch.afterCompletion(status); |
| } catch (Throwable t) { |
| errors.add(t); |
| } |
| } |
| status = errors.isEmpty() ? Status.STATUS_COMMITTED : Status.STATUS_UNKNOWN; |
| } |
| |
| /** |
| * Not implemented. |
| * Raises UnsupportedOperationException. |
| */ |
| @Override |
| public boolean delistResource(XAResource arg0, int arg1) throws IllegalStateException, SystemException { |
| throw new UnsupportedOperationException(); |
| } |
| |
| /** |
| * Not implemented. |
| * Raises UnsupportedOperationException. |
| */ |
| @Override |
| public boolean enlistResource(XAResource arg0) throws IllegalStateException, RollbackException, SystemException { |
| return false; |
| } |
| |
| /** |
| * Gets the status of this transaction. |
| * Raises UnsupportedOperationException. |
| */ |
| @Override |
| public int getStatus() throws SystemException { |
| return status; |
| } |
| |
| void setStatus(int newStatus) throws SystemException { |
| status = newStatus; |
| } |
| |
| |
| /** |
| * Registers the given synchronization element. |
| */ |
| @Override |
| public void registerSynchronization(Synchronization synch) throws IllegalStateException, RollbackException, |
| SystemException { |
| synchs.add(synch); |
| } |
| |
| /** |
| * Rolls back this transaction. |
| */ |
| @Override |
| public void rollback() throws IllegalStateException, SystemException { |
| status = Status.STATUS_ROLLING_BACK; |
| List<Throwable> errors = new ArrayList<>(); |
| for (Synchronization synch : synchs) { |
| try { |
| synch.beforeCompletion(); |
| } catch (Throwable t) { |
| errors.add(t); |
| } |
| } |
| |
| for (Synchronization synch : synchs) { |
| try { |
| synch.afterCompletion(Status.STATUS_ROLLEDBACK); |
| } catch (Throwable t) { |
| errors.add(t); |
| } |
| } |
| status = errors.isEmpty() ? Status.STATUS_ROLLEDBACK : Status.STATUS_UNKNOWN; |
| if (!errors.isEmpty()) |
| throw new RuntimeException(errors.get(0)); |
| } |
| |
| /** |
| * Marks this transaction for rollback only. |
| */ |
| @Override |
| public void setRollbackOnly() throws IllegalStateException, SystemException { |
| setRollbackOnly(null); |
| } |
| |
| /** |
| * Marks this transaction for rollback only with the given underlying cause. |
| */ |
| void setRollbackOnly(Throwable cause) throws IllegalStateException, SystemException { |
| rollbackCause = cause; |
| status = Status.STATUS_MARKED_ROLLBACK; |
| } |
| |
| Throwable getRollbackCause() { |
| return rollbackCause; |
| } |
| |
| @Override |
| public String toString() { |
| return "TXN:"+hashCode() +"["+statusCode()+"]"; |
| } |
| |
| String statusCode() { |
| switch (status) { |
| case Status.STATUS_ACTIVE : return "active"; |
| case Status.STATUS_COMMITTED : return "committed"; |
| case Status.STATUS_COMMITTING : return "committing"; |
| case Status.STATUS_MARKED_ROLLBACK : return "marked rollback"; |
| case Status.STATUS_NO_TRANSACTION : return "none"; |
| case Status.STATUS_PREPARED : return "prepared"; |
| case Status.STATUS_PREPARING : return "preparing"; |
| case Status.STATUS_ROLLEDBACK : return "rolled back"; |
| case Status.STATUS_ROLLING_BACK : return "rolling back"; |
| case Status.STATUS_UNKNOWN : return "unknown"; |
| default : return "error"; |
| } |
| } |
| |
| } |