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Merge pull request #4149 from eclipse/jetty-9.4.x-4121-qtp-threadfactory
Issue #4121 - ThreadFactory support in QTP
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jetty-util/src/test/java/org/eclipse/jetty/util/thread/ThreadFactoryTest.java
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| // | ||
| // ======================================================================== | ||
| // Copyright (c) 1995-2019 Mort Bay Consulting Pty. Ltd. | ||
| // ------------------------------------------------------------------------ | ||
| // All rights reserved. This program and the accompanying materials | ||
| // are made available under the terms of the Eclipse Public License v1.0 | ||
| // and Apache License v2.0 which accompanies this distribution. | ||
| // | ||
| // The Eclipse Public License is available at | ||
| // http://www.eclipse.org/legal/epl-v10.html | ||
| // | ||
| // The Apache License v2.0 is available at | ||
| // http://www.opensource.org/licenses/apache2.0.php | ||
| // | ||
| // You may elect to redistribute this code under either of these licenses. | ||
| // ======================================================================== | ||
| // | ||
|
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| package org.eclipse.jetty.util.thread; | ||
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| import java.util.concurrent.CountDownLatch; | ||
| import java.util.concurrent.ThreadFactory; | ||
| import java.util.concurrent.ThreadLocalRandom; | ||
| import java.util.concurrent.TimeUnit; | ||
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|
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| import org.eclipse.jetty.util.MultiException; | ||
| import org.junit.jupiter.api.Test; | ||
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| import static org.junit.jupiter.api.Assertions.assertTrue; | ||
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| public class ThreadFactoryTest | ||
| { | ||
| @Test | ||
| public void testThreadFactory() throws Exception | ||
| { | ||
| ThreadGroup threadGroup = new ThreadGroup("my-group"); | ||
| MyThreadFactory threadFactory = new MyThreadFactory(threadGroup); | ||
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| QueuedThreadPool qtp = new QueuedThreadPool(200, 10, 2000, 0, null, threadGroup, threadFactory); | ||
| try | ||
| { | ||
| qtp.start(); | ||
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| int testThreads = 2000; | ||
| CountDownLatch threadsLatch = new CountDownLatch(testThreads); | ||
| MultiException mex = new MultiException(); | ||
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| for (int i = 0; i < testThreads; i++) | ||
| { | ||
| qtp.execute(() -> | ||
| { | ||
| try | ||
| { | ||
| TimeUnit.MILLISECONDS.sleep(ThreadLocalRandom.current().nextInt(20, 500)); | ||
| Thread thread = Thread.currentThread(); | ||
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| if (!thread.getName().startsWith("My-")) | ||
| { | ||
| mex.add(new AssertionError("Thread " + thread.getName() + " does not start with 'My-'")); | ||
| } | ||
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| if (!thread.getThreadGroup().getName().equalsIgnoreCase("my-group")) | ||
| { | ||
| mex.add(new AssertionError("Thread Group " + thread.getThreadGroup().getName() + " is not 'my-group'")); | ||
| } | ||
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| threadsLatch.countDown(); | ||
| } | ||
| catch (InterruptedException e) | ||
| { | ||
| e.printStackTrace(); | ||
| } | ||
| }); | ||
| } | ||
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| assertTrue(threadsLatch.await(5, TimeUnit.SECONDS), "Did not see all tasks finish"); | ||
| mex.ifExceptionThrow(); | ||
| } | ||
| finally | ||
| { | ||
| qtp.stop(); | ||
| } | ||
| } | ||
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| public static class MyThreadFactory implements ThreadFactory | ||
| { | ||
| private final ThreadGroup threadGroup; | ||
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| public MyThreadFactory(ThreadGroup threadGroup) | ||
| { | ||
| this.threadGroup = threadGroup; | ||
| } | ||
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| @Override | ||
| public Thread newThread(Runnable runnable) | ||
| { | ||
| Thread thread = new Thread(threadGroup, runnable); | ||
| thread.setDaemon(false); | ||
| thread.setPriority(Thread.MIN_PRIORITY); | ||
| thread.setName("My-" + thread.getId()); | ||
| return thread; | ||
| } | ||
| } | ||
| } |