/*
* JBoss, Home of Professional Open Source
* Copyright 2009 Red Hat Inc. and/or its affiliates and other
* contributors as indicated by the @author tags. All rights reserved.
* See the copyright.txt 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.infinispan.test;
import org.infinispan.Cache;
import org.infinispan.manager.CacheContainer;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.notifications.Listener;
import org.infinispan.notifications.cachemanagerlistener.annotation.ViewChanged;
import org.infinispan.notifications.cachemanagerlistener.event.ViewChangedEvent;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
/**
* Listens for view changes. Note that you do NOT have to register this listener; it does so automatically when
* constructed.
*/
@Listener
public class ViewChangeListener {
CacheContainer cm;
final CountDownLatch latch = new CountDownLatch(1);
public ViewChangeListener(Cache c) {
this(c.getCacheManager());
}
public ViewChangeListener(EmbeddedCacheManager cm) {
this.cm = cm;
cm.addListener(this);
}
@ViewChanged
public void onViewChange(ViewChangedEvent e) {
latch.countDown();
}
/**
* Blocks for a certain amount of time until a view change is received. Note that this class will start listening
* for the view change the moment it is constructed.
*
* @param time time to wait
* @param unit time unit
*/
public void waitForViewChange(long time, TimeUnit unit) throws InterruptedException {
if (!latch.await(time, unit)) assert false : "View change not seen after " + time + " " + unit;
}
}