| /* |
| * 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.clientserver; |
| |
| import java.util.*; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.sessions.DatabaseLogin; |
| |
| public class ClientServerConcurrentWriteTest extends AutoVerifyTestCase { |
| protected DatabaseLogin login; |
| protected Vector clients = new Vector(); |
| protected Server server; |
| public static int NUM_CLIENTS = 2; |
| public Vector allSequenceNumbers = new Vector(); |
| |
| public ClientServerConcurrentWriteTest() { |
| setDescription("The test tests writing mutliple concurrent threads with pre-allocation"); |
| } |
| |
| public Vector getAllSequenceNumbers() { |
| return allSequenceNumbers; |
| } |
| |
| public Vector getClients() { |
| if (clients == null) { |
| setClients(new Vector()); |
| } |
| return clients; |
| } |
| |
| @Override |
| public void reset() { |
| server.serverSession.rollbackTransaction(); |
| this.server.logout(); |
| stopThreads(getClients()); |
| setClients(new Vector()); |
| } |
| |
| public void setClients(Vector newClients) { |
| this.clients = newClients; |
| } |
| |
| @Override |
| public void setup() { |
| this.login = (DatabaseLogin)getSession().getLogin().clone(); |
| this.server = new Server(this.login); |
| this.server.serverSession.getLogin().getDefaultSequence().setPreallocationSize(1); |
| this.server.serverSession.setSessionLog(getSession().getSessionLog()); |
| this.server.login(); |
| this.server.copyDescriptors(getSession()); |
| for (int i = 0; i < NUM_CLIENTS; i++) { |
| getClients().addElement(new EmployeeClient(this.server, getSession(), "EmployeeClient" + i, 25)); |
| } |
| server.serverSession.beginTransaction(); |
| } |
| |
| public void startThreads(Vector threads) { |
| for (Enumeration enumtr = threads.elements(); enumtr.hasMoreElements();) { |
| EmployeeClient thread = (EmployeeClient)enumtr.nextElement(); |
| thread.start(); |
| } |
| } |
| |
| public void stopThreads(Vector threads) { |
| for (Enumeration enumtr = threads.elements(); enumtr.hasMoreElements();) { |
| EmployeeClient thread = (EmployeeClient)enumtr.nextElement(); |
| thread.pleaseStop(); |
| } |
| } |
| |
| @Override |
| public void test() { |
| startThreads(getClients()); |
| |
| waitForThreads(getClients()); |
| |
| } |
| |
| @Override |
| public void verify() { |
| for (Enumeration enumtr = getClients().elements(); enumtr.hasMoreElements();) { |
| EmployeeClient thread = (EmployeeClient)enumtr.nextElement(); |
| if (thread.anErrorOccurred()) { |
| throw new TestErrorException("An exception " + thread.getTestException() + " occurred in client " + thread.toString()); |
| } else { |
| for (Enumeration sequences = thread.getSequenceNumbers().elements(); |
| sequences.hasMoreElements();) { |
| Object sequence = sequences.nextElement(); |
| if (getAllSequenceNumbers().contains(sequence)) { |
| setClients(new Vector()); |
| throw new TestErrorException("A duplicate sequence number has been detected -> " + sequence); |
| } else { |
| getAllSequenceNumbers().addElement(sequence); |
| } |
| } |
| } |
| } |
| } |
| |
| public void waitForThreads(Vector threads) { |
| for (Enumeration enumtr = threads.elements(); enumtr.hasMoreElements();) { |
| try { |
| ((Thread)enumtr.nextElement()).join(); |
| } catch (Exception ex) { |
| ex.printStackTrace(); |
| stopThreads(getClients()); |
| throw new TestErrorException("Client:" + toString() + "caught exception -> " + ex); |
| } |
| } |
| } |
| } |