| /* |
| * Copyright (c) 1998, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.unitofwork; |
| |
| import java.math.BigDecimal; |
| |
| import org.eclipse.persistence.sessions.UnitOfWork; |
| import org.eclipse.persistence.testing.framework.TestCase; |
| import org.eclipse.persistence.testing.framework.TestErrorException; |
| import org.eclipse.persistence.testing.framework.TestWarningException; |
| |
| |
| public class ConcurrentReadOnUpdateWithEarlyTransTest extends TestCase { |
| // used as monitor for test |
| public static ConcurrentAddress readAddress; |
| public ConcurrentAddress originalReference; |
| public ConcurrentAddress readObject; |
| |
| //used in remote unit of work tests to control when the lock is released |
| public static int whosWaiting; |
| public static final int READER = 2; |
| public static final int WRITER = 1; |
| public static ThreadLocal threadId = new ThreadLocal(); |
| |
| public ConcurrentReadOnUpdateWithEarlyTransTest() { |
| } |
| |
| @Override |
| public void setup() { |
| // The purpose of this test is to test multi-threaded server execution, |
| // remote is for a single client, so this test is not relevant. |
| if (getSession().isDistributedSession()) { |
| throw new TestWarningException("Test unavailable on Remote UnitOfWork."); |
| } |
| readAddress = new ConcurrentAddress(); |
| readAddress.setId(new BigDecimal(8)); |
| readAddress.setCity("Toronto"); |
| readAddress.setPostalCode("L5J2B5"); |
| readAddress.setProvince("ONT"); |
| readAddress.setStreet("1450 Acme Cr., suite 4"); |
| readAddress.setCountry("Canada"); |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| uow.registerObject(readAddress); |
| uow.commit(); |
| ConcurrentAddress.RUNNING_TEST = ConcurrentAddress.READ_ON_UPDATE_EARLY_TRANS; |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| } |
| |
| @Override |
| public void test() { |
| UnitOfWork uow = getSession().acquireUnitOfWork(); |
| ConcurrentPerson person = (ConcurrentPerson)uow.readObject(ConcurrentPerson.class); |
| originalReference = person.getAddress(); |
| uow.beginEarlyTransaction(); |
| ConcurrentAddress addressClone = |
| (ConcurrentAddress)uow.readObject(ConcurrentReadOnUpdateWithEarlyTransTest.readAddress); |
| person.setAddress(addressClone); |
| //begin multi threading |
| Thread loadThread = new Thread(this.runnable()); |
| loadThread.start(); |
| threadId.set("Writer"); |
| try { |
| //let the reader start |
| Thread.sleep(1000); |
| } catch (InterruptedException ex) { |
| } |
| uow.commit(); |
| try { |
| loadThread.join(); |
| } catch (InterruptedException ex) { |
| } |
| } |
| |
| public Runnable runnable() { |
| return new Runnable() { |
| @Override |
| public void run() { |
| threadId.set("Reader"); |
| synchronized (ConcurrentReadOnUpdateWithEarlyTransTest.readAddress) { |
| ConcurrentReadOnUpdateWithEarlyTransTest.whosWaiting = |
| ConcurrentReadOnUpdateWithEarlyTransTest.READER; |
| try { |
| ConcurrentReadOnUpdateWithEarlyTransTest.readAddress.wait(30000); |
| } catch (InterruptedException ex) { |
| } |
| } |
| readObject = |
| (ConcurrentAddress)getSession().readObject(ConcurrentReadOnUpdateWithEarlyTransTest.readAddress); |
| synchronized (ConcurrentReadOnUpdateWithEarlyTransTest.readAddress) { |
| ConcurrentReadOnUpdateWithEarlyTransTest.readAddress.notifyAll(); //wake writer |
| } |
| } |
| }; |
| } |
| |
| @Override |
| public void verify() { |
| ConcurrentPerson person = (ConcurrentPerson)getSession().readObject(ConcurrentPerson.class); |
| if (person.getAddress() != readObject) { |
| throw new TestErrorException("Object Identity Lost during merge"); |
| } |
| } |
| |
| @Override |
| public void reset() { |
| ConcurrentAddress.RUNNING_TEST = ConcurrentAddress.NONE; |
| try { |
| UnitOfWork unitOfWork = getSession().acquireUnitOfWork(); |
| ((ConcurrentPerson)unitOfWork.readObject(ConcurrentPerson.class)).setAddress((ConcurrentAddress)unitOfWork.registerObject(originalReference)); |
| unitOfWork.deleteObject(ConcurrentReadOnUpdateWithEarlyTransTest.readAddress); |
| unitOfWork.commit(); |
| } finally { |
| ConcurrentReadOnInsertTest.readAddress = null; |
| } |
| getSession().getIdentityMapAccessor().initializeAllIdentityMaps(); |
| } |
| } |