/*
* JBoss, Home of Professional Open Source.
* Copyright 2014, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.jboss.as.controller.notification;
import static java.util.concurrent.TimeUnit.SECONDS;
import static org.jboss.as.controller.PathAddress.pathAddress;
import static org.jboss.as.controller.notification.NotificationFilter.ALL;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import org.jboss.as.controller.registry.NotificationHandlerRegistration;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
/**
* @author <a href="http://jmesnil.net/">Jeff Mesnil</a> (c) 2014 Red Hat inc.
*/
public class NotificationSupportImplTestCase {
@Before
public void setUp() {
}
@Test
public void testNotificationOrderingWithExecutor() throws Exception {
doNotificationOrdering(Executors.newFixedThreadPool(12));
}
@Test
public void testNotificationOrderingWithoutExecutor() throws Exception {
doNotificationOrdering(null);
}
@Ignore
@Test
public void doManyNotificationOrderingWithExecutor() throws Exception {
ExecutorService executor = Executors.newFixedThreadPool(12);
for (int i = 0; i < 100000; i++) {
doNotificationOrdering(executor);
}
}
private void doNotificationOrdering(ExecutorService executor) throws Exception {
int numberOfNotificationsEmitted = 12;
final CountDownLatch latch = new CountDownLatch(numberOfNotificationsEmitted);
NotificationSupport notificationSupport = NotificationSupport.Factory.create(executor);
CountdownListBackedNotificationHandler handler = new CountdownListBackedNotificationHandler(latch);
notificationSupport.getNotificationRegistry().registerNotificationHandler(NotificationHandlerRegistration.ANY_ADDRESS, handler, ALL);
List<Notification> notifications1 = new ArrayList<Notification>();
notifications1.add(new Notification("foo", pathAddress("resource", "foo"), "foo"));
notifications1.add(new Notification("foo", pathAddress("resource", "foo"), "bar"));
notifications1.add(new Notification("foo", pathAddress("resource", "foo"), "baz"));
List<Notification> notifications2 = new ArrayList<Notification>();
notifications2.add(new Notification("bar", pathAddress("resource", "bar"), "foo"));
notifications2.add(new Notification("bar", pathAddress("resource", "bar"), "bar"));
notifications2.add(new Notification("bar", pathAddress("resource", "bar"), "baz"));
final Notification[] notifs1 = notifications1.toArray(new Notification[notifications1.size()]);
final Notification[] notifs2 = notifications2.toArray(new Notification[notifications2.size()]);
// emit the notifications1 a 1st time
notificationSupport.emit(notifs1);
// emit the notifications2 a 1st time
notificationSupport.emit(notifs2);
// emit the notifications1 a 2nd time
notificationSupport.emit(notifs1);
// emit the notifications2 a 2nd time
notificationSupport.emit(notifs2);
assertTrue(latch.await(5, SECONDS));
assertEquals(handler.getNotifications().toString(), numberOfNotificationsEmitted, handler.getNotifications().size());
for (Notification notification : handler.getNotifications()) {
assertNotNull(notification);
}
// handled the 1st notifications1 that were emitted
assertEquals(notifications1, handler.getNotifications().subList(0, 3));
// handled the 1st notifications2 that were emitted
assertEquals(notifications2, handler.getNotifications().subList(3, 6));
// handled the 2nd notifications1 that were emitted
assertEquals(notifications1, handler.getNotifications().subList(6, 9));
// handled the 2nd notifications2 that were emitted
assertEquals(notifications2, handler.getNotifications().subList(9, 12));
}
}