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// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.docproc.jdisc;
import org.junit.Test;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
/**
* @author <a href="mailto:einarmr@yahoo-inc.com">Einar M R Rosenvinge</a>
*/
public class DocprocThreadPoolExecutorTestCase {
private final Set<Long> threadIds = Collections.synchronizedSet(new HashSet<Long>());
@Test
public void threadPool() throws InterruptedException {
int numThreads = 8;
int numTasks = 200;
LinkedBlockingQueue<Runnable> q = new LinkedBlockingQueue<>();
DocprocThreadManager mgr = new DocprocThreadManager(1000l);
DocprocThreadPoolExecutor pool = new DocprocThreadPoolExecutor(numThreads, q, mgr);
List<MockedDocumentProcessingTask> tasks = new ArrayList<>(numTasks);
for (int i = 0; i < numTasks; i++) {
tasks.add(new MockedDocumentProcessingTask());
}
for (int i = 0; i < numTasks; i++) {
pool.execute(tasks.get(i));
}
pool.shutdown();
pool.awaitTermination(120L, TimeUnit.SECONDS);
for (int i = 0; i < numTasks; i++) {
assertTrue(tasks.get(i).hasBeenRun());
}
System.err.println(threadIds);
assertEquals(numThreads, threadIds.size());
}
private class MockedDocumentProcessingTask extends DocumentProcessingTask {
private boolean hasBeenRun = false;
public MockedDocumentProcessingTask() {
super(null, null, null);
}
@Override
public void run() {
threadIds.add(Thread.currentThread().getId());
System.err.println(System.currentTimeMillis() + " MOCK Thread " + Thread.currentThread().getId() + " running task " + this);
for (int i = 0; i < 100000; i++) {
Math.sin((double) (System.currentTimeMillis() / 10000L));
}
System.err.println(System.currentTimeMillis() + " MOCK Thread " + Thread.currentThread().getId() + " DONE task " + this);
hasBeenRun = true;
}
@Override
public int getApproxSize() {
return 333;
}
@Override
public String toString() {
return "seqNum " + getSeqNum();
}
public boolean hasBeenRun() {
return hasBeenRun;
}
}
}
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