/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.brooklyn.util.core.task;
import java.util.concurrent.Semaphore;
import java.util.concurrent.TimeUnit;
import org.apache.brooklyn.api.mgmt.Task;
import org.apache.brooklyn.util.core.task.BasicTask;
import org.apache.brooklyn.util.time.Time;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.Assert;
import org.testng.annotations.Test;
import com.google.common.base.Stopwatch;
public class TaskFinalizationTest {
private static final Logger log = LoggerFactory.getLogger(TaskFinalizationTest.class);
// integration because it can take a while (and finalizers aren't even guaranteed)
@Test(groups="Integration")
public void testFinalizerInvoked() throws InterruptedException {
BasicTask<?> t = new BasicTask<Void>(new Runnable() { public void run() { /* no op */ }});
final Semaphore x = new Semaphore(0);
t.setFinalizer(new BasicTask.TaskFinalizer() {
public void onTaskFinalization(Task<?> t) {
synchronized (x) {
x.release();
}
}
});
t = null;
Stopwatch watch = Stopwatch.createStarted();
for (int i=0; i<30; i++) {
System.gc(); System.gc();
if (x.tryAcquire(1, TimeUnit.SECONDS)) {
log.info("finalizer ran after "+Time.makeTimeStringRounded(watch));
return;
}
}
Assert.fail("finalizer did not run in time");
}
}