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/*
* Copyright (c) 2007, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @bug 6560953
* @summary Test ScheduledThreadPoolExecutor.decorateTask
*/
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.Delayed;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.RunnableScheduledFuture;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import java.util.concurrent.atomic.AtomicInteger;
public class DecorateTask {
Runnable countDownTask(final CountDownLatch latch) {
return new Runnable() { public void run() {
latch.countDown();
if (latch.getCount() <= 0)
throw new RuntimeException("done");
}};}
void test(String[] args) throws Throwable {
final int jobs = 100;
final AtomicInteger decoratorCount = new AtomicInteger(0);
final ScheduledThreadPoolExecutor pool =
new ScheduledThreadPoolExecutor(10) {
protected <V> RunnableScheduledFuture<V> decorateTask(
final Runnable runnable,
final RunnableScheduledFuture<V> task) {
return new RunnableScheduledFuture<V>() {
public void run() {
decoratorCount.incrementAndGet();
task.run();
}
public boolean isPeriodic() {
return task.isPeriodic();
}
public boolean cancel(boolean mayInterruptIfRunning) {
return task.cancel(mayInterruptIfRunning);
}
public boolean isCancelled() {
return task.isCancelled();
}
public boolean isDone() {
return task.isDone();
}
public V get()
throws InterruptedException, ExecutionException {
return task.get();
}
public V get(long timeout, TimeUnit unit)
throws InterruptedException, ExecutionException, TimeoutException {
return task.get(timeout, unit);
}
public long getDelay(TimeUnit unit) {
return task.getDelay(unit);
}
public int compareTo(Delayed o) {
return task.compareTo(o);
}};}};
final CountDownLatch latch1 = new CountDownLatch(jobs);
final CountDownLatch latch2 = new CountDownLatch(jobs);
pool.scheduleAtFixedRate(countDownTask(latch1), 0L, 1L, TimeUnit.NANOSECONDS);
pool.scheduleWithFixedDelay(countDownTask(latch2), 0L, 1L, TimeUnit.NANOSECONDS);
latch1.await();
latch2.await();
pool.shutdown();
pool.awaitTermination(1L, TimeUnit.MINUTES);
equal(decoratorCount.get(), 2 * jobs);
}
//--------------------- Infrastructure ---------------------------
volatile int passed = 0, failed = 0;
void pass() {passed++;}
void fail() {failed++; Thread.dumpStack();}
void fail(String msg) {System.err.println(msg); fail();}
void unexpected(Throwable t) {failed++; t.printStackTrace();}
void check(boolean cond) {if (cond) pass(); else fail();}
void equal(Object x, Object y) {
if (x == null ? y == null : x.equals(y)) pass();
else fail(x + " not equal to " + y);}
public static void main(String[] args) throws Throwable {
new DecorateTask().instanceMain(args);}
void instanceMain(String[] args) throws Throwable {
try {test(args);} catch (Throwable t) {unexpected(t);}
System.out.printf("%nPassed = %d, failed = %d%n%n", passed, failed);
if (failed > 0) throw new AssertionError("Some tests failed");}
}
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