| /* |
| * Copyright (c) 2010, 2018 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. |
| * |
| * This Source Code may also be made available under the following Secondary |
| * Licenses when the conditions for such availability set forth in the |
| * Eclipse Public License v. 2.0 are satisfied: GNU General Public License, |
| * version 2 with the GNU Classpath Exception, which is available at |
| * https://www.gnu.org/software/classpath/license.html. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0 |
| */ |
| |
| package org.glassfish.jersey.simple; |
| |
| import java.util.concurrent.CountDownLatch; |
| import java.util.concurrent.TimeUnit; |
| import java.util.concurrent.atomic.AtomicInteger; |
| import java.util.logging.Level; |
| import java.util.logging.Logger; |
| |
| import javax.ws.rs.GET; |
| import javax.ws.rs.Path; |
| import javax.ws.rs.client.ClientBuilder; |
| import javax.ws.rs.client.WebTarget; |
| |
| import org.glassfish.jersey.server.ResourceConfig; |
| |
| import org.junit.Test; |
| |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * Tests the parallel execution of multiple requests. |
| * |
| * @author Stepan Kopriva |
| * @author Arul Dhesiaseelan (aruld at acm.org) |
| */ |
| public class ParallelTest extends AbstractSimpleServerTester { |
| |
| // Server-side dispatcher and selector pool configuration |
| private static final int selectorThreads = Runtime.getRuntime().availableProcessors(); |
| private static final int dispatcherThreads = Math.max(8, selectorThreads * 2); |
| |
| private static final int numberOfThreads = 100; |
| |
| private static final String PATH = "test"; |
| private static AtomicInteger receivedCounter = new AtomicInteger(0); |
| private static AtomicInteger resourceCounter = new AtomicInteger(0); |
| private static CountDownLatch latch = new CountDownLatch(numberOfThreads); |
| |
| @Path(PATH) |
| public static class MyResource { |
| |
| @GET |
| public String get() { |
| this.sleep(); |
| resourceCounter.addAndGet(1); |
| return "GET"; |
| } |
| |
| private void sleep() { |
| try { |
| Thread.sleep(10); |
| } catch (InterruptedException ex) { |
| Logger.getLogger(ParallelTest.class.getName()).log(Level.SEVERE, null, ex); |
| } |
| } |
| } |
| |
| private class ResourceThread extends Thread { |
| |
| private WebTarget target; |
| private String path; |
| |
| public ResourceThread(WebTarget target, String path) { |
| this.target = target; |
| this.path = path; |
| } |
| |
| @Override |
| public void run() { |
| assertEquals("GET", target.path(path).request().get(String.class)); |
| receivedCounter.addAndGet(1); |
| latch.countDown(); |
| } |
| } |
| |
| @Test |
| public void testParallel() { |
| ResourceConfig config = new ResourceConfig(MyResource.class); |
| startServer(config, dispatcherThreads, selectorThreads); |
| WebTarget target = ClientBuilder.newClient().target(getUri().path("/").build()); |
| |
| for (int i = 1; i <= numberOfThreads; i++) { |
| ResourceThread rt = new ResourceThread(target, PATH); |
| rt.start(); |
| } |
| |
| try { |
| latch.await(8000, TimeUnit.MILLISECONDS); |
| } catch (InterruptedException ex) { |
| Logger.getLogger(ParallelTest.class.getName()).log(Level.SEVERE, null, ex); |
| } |
| |
| int result = receivedCounter.get(); |
| assertEquals(numberOfThreads, result); |
| } |
| } |