| /* |
| * 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 |
| <<<<<<< Updated upstream |
| * |
| * 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 |
| ======= |
| * |
| * https://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 |
| >>>>>>> Stashed changes |
| * limitations under the License. |
| */ |
| |
| package org.apache.jdo.tck.api.persistencemanager.cache; |
| |
| import javax.jdo.JDOFatalException; |
| import javax.jdo.PersistenceManager; |
| import javax.jdo.PersistenceManagerFactory; |
| import javax.jdo.Transaction; |
| import junit.framework.AssertionFailedError; |
| import org.apache.jdo.tck.api.persistencemanager.PersistenceManagerTest; |
| import org.apache.jdo.tck.pc.mylib.PCPoint; |
| import org.apache.jdo.tck.util.BatchTestRunner; |
| import org.apache.jdo.tck.util.ThreadExceptionHandler; |
| |
| /** |
| * <B>Title:</B> Refresh Side Effects <br> |
| * <B>Keywords:</B> cache <br> |
| * <B>Assertion ID:</B> A12.5.1-5A <br> |
| * <B>Assertion Description: </B> The refresh method updates the values in the parameter instance[s] |
| * from the data in the data store. ((The intended use is for optimistic transactions where the |
| * state of the JDO Instance is not guaranteed to reflect the state in the data store. This method |
| * can be used to minimize the occurrence of commit failures due to mismatch between the state of |
| * cached instances and the state of data in the data store.)) This can be tested by using 2 |
| * PersistenceManagers, independently change an object, then refresh. |
| */ |
| public class RefreshSideEffects extends PersistenceManagerTest { |
| |
| /** */ |
| private static final String ASSERTION_FAILED = |
| "Assertion A12.5.1-5A (RefreshSideEffects) failed: "; |
| |
| /** */ |
| static final int DELAY = 100; |
| |
| /** |
| * The <code>main</code> is called when the class is directly executed from the command line. |
| * |
| * @param args The arguments passed to the program. |
| */ |
| public static void main(String[] args) { |
| BatchTestRunner.run(RefreshSideEffects.class); |
| } |
| |
| /** |
| * @throws Exception exception |
| */ |
| public void test() throws Exception { |
| PersistenceManagerFactory pmf = getPMF(); |
| PersistenceManager pm1 = pmf.getPersistenceManager(); |
| PersistenceManager pm2 = pmf.getPersistenceManager(); |
| |
| try { |
| runTestRefreshSideEffects(pm1, pm2); |
| } finally { |
| cleanupPM(pm2); |
| pm2 = null; |
| cleanupPM(pm1); |
| pm1 = null; |
| } |
| } |
| |
| /** |
| * @param pm1 the first PersistenceManager |
| * @param pm2 the second PersistenceManager |
| * @throws Exception |
| */ |
| private void runTestRefreshSideEffects(PersistenceManager pm1, PersistenceManager pm2) |
| throws Exception { |
| if (debug) logger.debug("\nSTART RefreshSideEffects"); |
| |
| ThreadExceptionHandler group = new ThreadExceptionHandler(); |
| RefreshThreadT1 thread1 = new RefreshThreadT1(pm1); |
| Thread T1 = new Thread(group, thread1, "T1"); |
| RefreshThreadT2 thread2 = new RefreshThreadT2(pm2); |
| Thread T2 = new Thread(group, thread2, "T2"); |
| thread1.setOther(thread2); |
| thread2.setOther(thread1); |
| |
| T1.start(); |
| T2.start(); |
| |
| T1.join(); |
| T2.join(); |
| |
| Throwable t1Problem = group.getUncaughtException(T1); |
| if (t1Problem != null) { |
| if (t1Problem instanceof AssertionFailedError) throw (AssertionFailedError) t1Problem; |
| else |
| throw new JDOFatalException("Thread " + T1.getName() + " results in exception ", t1Problem); |
| } |
| Throwable t2Problem = group.getUncaughtException(T2); |
| if (t2Problem != null) { |
| if (t2Problem instanceof AssertionFailedError) throw (AssertionFailedError) t2Problem; |
| else |
| throw new JDOFatalException("Thread " + T2.getName() + " results in exception ", t2Problem); |
| } |
| |
| if (debug) logger.debug("END RefreshSideEffects"); |
| } |
| |
| /** */ |
| class RefreshThreadT1 implements Runnable { |
| |
| private final PersistenceManager pm; |
| private RefreshThreadT2 other; |
| private boolean commitDone; |
| |
| /** */ |
| RefreshThreadT1(PersistenceManager pm) { |
| this.pm = pm; |
| this.other = null; |
| this.commitDone = false; |
| } |
| |
| /** */ |
| void setOther(RefreshThreadT2 other) { |
| this.other = other; |
| } |
| |
| /** */ |
| boolean isCommitDone() { |
| return commitDone; |
| } |
| |
| /** */ |
| public synchronized void run() { |
| PCPoint n1 = new PCPoint(5, 1); |
| Transaction tx = pm.currentTransaction(); |
| try { |
| RefreshSideEffects.this.logger.debug(" ThreadT1: START"); |
| tx.begin(); |
| n1.setX(500); |
| pm.makePersistent(n1); |
| pm.refresh(n1); |
| |
| RefreshSideEffects.this.logger.debug(" ThreadT1: waiting for ThreadT2.done"); |
| while (!other.isDone()) { |
| try { |
| Thread.sleep(DELAY); |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| |
| tx.commit(); |
| tx = null; |
| commitDone = true; |
| RefreshSideEffects.this.logger.debug(" ThreadT1: commit finished."); |
| } finally { |
| commitDone = true; |
| if ((tx != null) && tx.isActive()) tx.rollback(); |
| } |
| } |
| } |
| |
| /** */ |
| class RefreshThreadT2 implements Runnable { |
| |
| private final PersistenceManager pm; |
| private RefreshThreadT1 other; |
| private boolean done; |
| |
| /** */ |
| RefreshThreadT2(PersistenceManager pm) { |
| this.pm = pm; |
| this.other = null; |
| this.done = false; |
| } |
| |
| /** */ |
| boolean isDone() { |
| return done; |
| } |
| |
| /** */ |
| void setOther(RefreshThreadT1 other) { |
| this.other = other; |
| } |
| |
| /* test refresh() */ |
| public synchronized void run() { |
| PCPoint p1 = new PCPoint(5, 1); |
| Transaction tx = pm.currentTransaction(); |
| try { |
| RefreshSideEffects.this.logger.debug(" ThreadT2: START"); |
| tx.begin(); |
| p1.setX(201); |
| pm.makePersistent(p1); |
| pm.refresh(p1); |
| done = true; |
| |
| RefreshSideEffects.this.logger.debug(" ThreadT2: waiting for commit of ThreadT1"); |
| while (!other.isCommitDone()) { |
| try { |
| Thread.sleep(DELAY); |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| tx.commit(); |
| tx = null; |
| RefreshSideEffects.this.logger.debug(" ThreadT2: commit finished."); |
| } finally { |
| done = true; |
| if ((tx != null) && tx.isActive()) tx.rollback(); |
| } |
| } |
| } |
| } |