/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
*
* Copyright (c) 2010-2016 Oracle and/or its affiliates. All rights reserved.
*
* The contents of this file are subject to the terms of either the GNU
* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can
* obtain a copy of the License at
* http://glassfish.java.net/public/CDDL+GPL_1_1.html
* or packager/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at packager/legal/LICENSE.txt.
*
* GPL Classpath Exception:
* Oracle designates this particular file as subject to the "Classpath"
* exception as provided by Oracle in the GPL Version 2 section of the License
* file that accompanied this code.
*
* Modifications:
* If applicable, add the following below the License Header, with the fields
* enclosed by brackets [] replaced by your own identifying information:
* "Portions Copyright [year] [name of copyright owner]"
*
* Contributor(s):
* If you wish your version of this file to be governed by only the CDDL or
* only the GPL Version 2, indicate your decision by adding "[Contributor]
* elects to include this software in this distribution under the [CDDL or GPL
* Version 2] license." If you don't indicate a single choice of license, a
* recipient has the option to distribute your version of this file under
* either the CDDL, the GPL Version 2 or to extend the choice of license to
* its licensees as provided above. However, if you add GPL Version 2 code
* and therefore, elected the GPL Version 2 license, then the option applies
* only if the new code is made subject to such option by the copyright
* holder.
*/
package org.glassfish.jersey.simple;
import java.util.concurrent.CountDownLatch;
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();
} catch (InterruptedException ex) {
Logger.getLogger(ParallelTest.class.getName()).log(Level.SEVERE, null, ex);
}
int result = receivedCounter.get();
assertEquals(numberOfThreads, result);
}
}