/*
* 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 static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertSame;
import static org.testng.Assert.assertTrue;
import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.Callable;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import org.apache.brooklyn.api.mgmt.Task;
import org.apache.brooklyn.test.Asserts;
import org.apache.brooklyn.util.collections.MutableMap;
import org.apache.brooklyn.util.core.task.BasicExecutionManager;
import org.apache.brooklyn.util.core.task.BasicTask;
import org.apache.brooklyn.util.core.task.ForwardingTask;
import org.apache.brooklyn.util.core.task.TaskInternal;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.BeforeMethod;
import org.testng.annotations.Test;
/**
* Test the operation of the {@link BasicTask} class.
*
* TODO clarify test purpose
*/
public class NonBasicTaskExecutionTest {
private static final Logger log = LoggerFactory.getLogger(NonBasicTaskExecutionTest.class);
private static final int TIMEOUT_MS = 10*1000;
public static class ConcreteForwardingTask<T> extends ForwardingTask<T> {
private final TaskInternal<T> delegate;
ConcreteForwardingTask(TaskInternal<T> delegate) {
this.delegate = delegate;
}
@Override
protected TaskInternal<T> delegate() {
return delegate;
}
@Override
public boolean cancel(TaskCancellationMode mode) {
return delegate.cancel(mode);
}
}
private BasicExecutionManager em;
private Map<Integer,String> data;
@BeforeMethod(alwaysRun=true)
public void setUp() throws Exception {
em = new BasicExecutionManager("mycontext");
data = Collections.synchronizedMap(new HashMap<Integer,String>());
}
@AfterMethod(alwaysRun=true)
public void tearDown() throws Exception {
if (em != null) em.shutdownNow();
}
@Test
public void runSimpleTask() throws Exception {
TaskInternal<Object> t = new ConcreteForwardingTask<Object>(new BasicTask<Object>(new Callable<Object>() {
@Override public Object call() {
return data.put(1, "b");
}}));
data.put(1, "a");
Task<?> t2 = em.submit(MutableMap.of("tag", "A"), t);
assertEquals("a", t.get());
assertEquals("a", t2.get());
assertSame(t, t2, "t="+t+"; t2="+t2);
assertEquals("b", data.get(1));
}
@Test
public void runBasicTaskWithWaits() throws Exception {
final CountDownLatch signalStarted = new CountDownLatch(1);
final CountDownLatch allowCompletion = new CountDownLatch(1);
final TaskInternal<Object> t = new ConcreteForwardingTask<Object>(new BasicTask<Object>(new Callable<Object>() {
@Override public Object call() throws Exception {
Object result = data.put(1, "b");
signalStarted.countDown();
assertTrue(allowCompletion.await(TIMEOUT_MS, TimeUnit.MILLISECONDS));
return result;
}}));
data.put(1, "a");
Task<?> t2 = em.submit(MutableMap.of("tag", "A"), t);
assertEquals(t, t2);
assertFalse(t.isDone());
assertTrue(signalStarted.await(TIMEOUT_MS, TimeUnit.MILLISECONDS));
assertEquals("b", data.get(1));
assertFalse(t.isDone());
log.debug("runBasicTaskWithWaits, BasicTask status: {}", t.getStatusDetail(false));
Asserts.succeedsEventually(new Runnable() {
@Override public void run() {
t.getStatusDetail(false).toLowerCase().contains("waiting");
}});
// "details="+t.getStatusDetail(false))
allowCompletion.countDown();
assertEquals("a", t.get());
}
}