/**
* Expect ExecutionTimedOutException because we only have 1 thread, try to execute 2 tasks, each
* is only allowed 10ms of execution time
*
* @throws RejectedExecutionException
* @throws InterruptedException
*/
public void testExecuteBlockingFail() throws RejectedExecutionException, InterruptedException {
JBossThreadFactory threadFactory =
new JBossThreadFactory(null, null, null, "test thread %p %t", null, null);
int cpuCount = Runtime.getRuntime().availableProcessors();
int maxThreadNo = 1;
final CountDownLatch taskUnfreezer = new CountDownLatch(1);
final CountDownLatch taskFinishLine = new CountDownLatch(maxThreadNo);
final ExecutorService handoffExec = Executors.newFixedThreadPool(cpuCount);
final QueuelessExecutor queuelessExec =
new QueuelessExecutor(threadFactory, JBossExecutors.directExecutor(), null, 2000);
queuelessExec.setHandoffExecutor(handoffExec);
queuelessExec.setKeepAliveTime(2000);
queuelessExec.setMaxThreads(maxThreadNo);
queuelessExec.setBlocking(false);
final CountDownLatch finishLatch2 = new CountDownLatch(1);
queuelessExec.setBlocking(true);
final int threadNo3 = 777;
queuelessExec.executeBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 50000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo3 + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch2.countDown();
}
},
10L,
TimeUnit.MILLISECONDS);
try {
queuelessExec.executeBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 50000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo3 + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch2.countDown();
}
},
10L,
TimeUnit.MILLISECONDS);
} catch (ExecutionTimedOutException etoe) {
System.out.println("Timed out....");
}
}
public void testExecuteNonBlockingNullThread() {
ThreadFactory nullFactory =
new ThreadFactory() {
@Override
public Thread newThread(Runnable r) {
return null;
}
};
int cpuCount = Runtime.getRuntime().availableProcessors();
int maxThreadNo = 1;
final CountDownLatch taskUnfreezer = new CountDownLatch(1);
final CountDownLatch taskFinishLine = new CountDownLatch(maxThreadNo);
final ExecutorService handoffExec = Executors.newFixedThreadPool(cpuCount);
final QueuelessExecutor queuelessExec =
new QueuelessExecutor(nullFactory, JBossExecutors.directExecutor(), null, 2000);
queuelessExec.setHandoffExecutor(handoffExec);
queuelessExec.setKeepAliveTime(2000);
queuelessExec.setMaxThreads(maxThreadNo);
queuelessExec.setBlocking(false);
final CountDownLatch finishLatch2 = new CountDownLatch(1);
queuelessExec.setBlocking(true);
final int threadNo = 111;
try {
queuelessExec.executeNonBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 50000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch2.countDown();
}
});
} catch (ThreadCreationException tce) {
System.out.println("Expecting ThreadCreationException and getting it.");
}
}
public void testExecuteNonBlocking() {
JBossThreadFactory threadFactory =
new JBossThreadFactory(null, null, null, "test thread %p %t", null, null);
int cpuCount = Runtime.getRuntime().availableProcessors();
int maxThreadNo = 1;
final CountDownLatch taskUnfreezer = new CountDownLatch(1);
final CountDownLatch taskFinishLine = new CountDownLatch(maxThreadNo);
final ExecutorService handoffExec = Executors.newFixedThreadPool(cpuCount);
final QueuelessExecutor queuelessExec =
new QueuelessExecutor(threadFactory, JBossExecutors.directExecutor(), null, 2000);
queuelessExec.setHandoffExecutor(handoffExec);
queuelessExec.setKeepAliveTime(2000);
queuelessExec.setMaxThreads(maxThreadNo);
queuelessExec.setBlocking(false);
final CountDownLatch finishLatch2 = new CountDownLatch(1);
queuelessExec.setBlocking(true);
final int threadNo = 111;
queuelessExec.executeNonBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 50000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch2.countDown();
}
});
}
public void testBasic() throws InterruptedException {
JBossThreadFactory threadFactory =
new JBossThreadFactory(null, null, null, "test thread %p %t", null, null);
int cpuCount = Runtime.getRuntime().availableProcessors();
int maxThreadNo = cpuCount * 2;
final CountDownLatch taskUnfreezer = new CountDownLatch(1);
final CountDownLatch taskFinishLine = new CountDownLatch(maxThreadNo);
final ExecutorService handoffExec = Executors.newFixedThreadPool(cpuCount);
final QueuelessExecutor queuelessExec =
new QueuelessExecutor(threadFactory, JBossExecutors.directExecutor(), null, 2000);
queuelessExec.setHandoffExecutor(handoffExec);
queuelessExec.setKeepAliveTime(2000);
queuelessExec.setMaxThreads(maxThreadNo);
queuelessExec.setBlocking(false);
for (int i = 0; i < maxThreadNo; i++) {
final int threadNo = i;
queuelessExec.execute(
new Runnable() {
@Override
public void run() {
try {
taskUnfreezer.await();
for (int j = 0; j < 5000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println(
"Thread " /*+ Thread.currentThread().getId() */
+ " : "
+ threadNo
+ " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
taskFinishLine.countDown();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
});
}
long start = System.nanoTime();
taskUnfreezer.countDown();
taskFinishLine.await(1112000L, TimeUnit.MILLISECONDS);
long end = System.nanoTime();
System.out.println((end - start) / 1000000);
assertTrue(queuelessExec.getCurrentThreadCount() == maxThreadNo);
assertTrue(queuelessExec.getHandoffExecutor() == handoffExec);
assertTrue(queuelessExec.getMaxThreads() == maxThreadNo);
assertTrue(queuelessExec.getLargestThreadCount() == maxThreadNo);
assertTrue(queuelessExec.getKeepAliveTime() == 2000);
assertTrue(queuelessExec.getRejectedCount() == 0);
assertFalse(queuelessExec.isBlocking());
/////////////////////////
// executeBlocking
/////////////////////////
final CountDownLatch finishLatch = new CountDownLatch(1);
queuelessExec.setBlocking(true);
final int threadNo = 999;
queuelessExec.executeBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 500000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch.countDown();
}
});
finishLatch.await();
/////////////////////////////////////
// executeBlocking(... , ... , ... )
/////////////////////////////////////
final CountDownLatch finishLatch2 = new CountDownLatch(1);
queuelessExec.setBlocking(true);
final int threadNo2 = 888;
queuelessExec.executeBlocking(
new Runnable() {
@Override
public void run() {
for (int j = 0; j < 50000000; j++) {
int k = j * j * j;
k = k * k * k * k * k * k;
}
System.out.println("Thread : " + threadNo2 + " running inside queuelessExecutor");
System.out.println("Thread count: " + queuelessExec.getCurrentThreadCount());
finishLatch2.countDown();
}
},
10L,
TimeUnit.MILLISECONDS);
finishLatch2.await();
///////////////
// shutting down
/////////////////
queuelessExec.shutdown();
queuelessExec.awaitTermination(2000, TimeUnit.MILLISECONDS);
List<Runnable> neverRunTask = queuelessExec.shutdownNow();
assertTrue("all tasks should've been executed", neverRunTask.size() == 0);
assertTrue(queuelessExec.isShutdown());
if (!queuelessExec.isTerminated()) {
queuelessExec.shutdownNow();
}
// assertTrue(queuelessExec.isTerminated());
}