| /* |
| * 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.stress; |
| |
| import org.eclipse.persistence.sessions.Project; |
| import org.eclipse.persistence.testing.framework.*; |
| import org.eclipse.persistence.sessions.server.*; |
| import org.eclipse.persistence.testing.models.employee.relational.EmployeeSystem; |
| |
| /** |
| * Test many client sessions. |
| */ |
| |
| public class StressThreeTierTest extends AutoVerifyTestCase { |
| public int stressLevel; |
| public StressThreeTierTest(int stressLevel) |
| { |
| this.stressLevel = stressLevel; |
| } |
| @Override |
| public void test( ) |
| { |
| Server server = null; |
| try { |
| server = new Project(getSession().getDatasourceLogin()).createServerSession(); |
| new EmployeeSystem().addDescriptors(server); |
| server.addConnectionPool("default", getSession().getDatasourceLogin(), 3, 5); |
| server.useReadConnectionPool(3, 3); |
| server.login(); |
| |
| long startTime = System.currentTimeMillis(); |
| ClientThread client = new ClientThread(server); |
| client.start(); |
| try { |
| client.join(); |
| } catch (InterruptedException exception) { |
| throw new TestErrorException(exception.toString()); |
| } |
| long endTime = System.currentTimeMillis(); |
| System.out.println("Single thread total time -> " + (endTime - startTime)); |
| |
| ClientThread[] clients = new ClientThread[stressLevel]; |
| for (int i = 0; i < stressLevel; i++) { |
| clients[i] = new ClientThread(server); |
| } |
| |
| startTime = System.currentTimeMillis(); |
| for (int i = 0; i < stressLevel; i++) { |
| clients[i].start(); |
| } |
| |
| for (int i = 0; i < stressLevel; i++) { |
| try { |
| clients[i].join(); |
| } catch (InterruptedException exception) { |
| throw new TestErrorException(exception.toString()); |
| } |
| } |
| endTime = System.currentTimeMillis(); |
| |
| System.out.println("Concurrent thread total time -> " + (endTime - startTime)); |
| } finally { |
| server.logout(); |
| } |
| } |
| } |