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* 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
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package org.infinispan.notifications.cachemanagerlistener;
import org.infinispan.Cache;
import org.infinispan.config.Configuration;
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 org.infinispan.remoting.transport.Address;
import org.infinispan.test.AbstractInfinispanTest;
import org.infinispan.test.TestingUtil;
import org.infinispan.test.fwk.TestCacheManagerFactory;
import org.testng.annotations.AfterMethod;
import org.testng.annotations.Test;
import java.util.List;
import java.util.Set;
import java.util.concurrent.CountDownLatch;
import static org.testng.Assert.assertEquals;
@Test(groups = "unit", testName = "notifications.cachemanagerlistener.CacheManagerNotifierTest")
public class CacheManagerNotifierTest extends AbstractInfinispanTest {
EmbeddedCacheManager cm1;
EmbeddedCacheManager cm2;
@AfterMethod(alwaysRun = true)
public void tearDown() {
TestingUtil.killCacheManagers(cm1, cm2);
}
public void testMockViewChange() {
cm1 = TestCacheManagerFactory.createClusteredCacheManager();
cm2 = TestCacheManagerFactory.createClusteredCacheManager();
Configuration c = new Configuration();
c.setCacheMode(Configuration.CacheMode.REPL_SYNC);
c.setFetchInMemoryState(false);
cm1.defineConfiguration("cache", c);
cm2.defineConfiguration("cache", c);
cm1.getCache("cache");
// this will mean only 1 cache in the cluster so far
assert cm1.getMembers().size() == 1;
Address myAddress = cm1.getAddress();
assert cm1.getMembers().contains(myAddress);
// now attach a mock notifier
CacheManagerNotifierWrapper nw = new CacheManagerNotifierWrapper(TestingUtil.extractComponent(cm1.getCache("cache"), CacheManagerNotifier.class));
CacheManagerNotifier origNotifier = TestingUtil.replaceComponent(cm1, CacheManagerNotifier.class, nw, true);
try {
// start a second cache.
Cache c2 = cm2.getCache("cache");
TestingUtil.blockUntilViewsReceived(60000, cm1, cm2);
assert nw.notifyView;
assertEquals(myAddress, nw.address);
} finally {
TestingUtil.replaceComponent(cm1, CacheManagerNotifier.class, origNotifier, true);
}
}
public static class CacheManagerNotifierWrapper implements CacheManagerNotifier {
final CacheManagerNotifier realOne;
volatile boolean notifyView;
volatile Address address;
public CacheManagerNotifierWrapper(CacheManagerNotifier realOne) {
this.realOne = realOne;
}
@Override
public void notifyViewChange(List<Address> members, List<Address> oldMembers, Address myAddress, int viewId) {
realOne.notifyViewChange(members, oldMembers, myAddress, viewId);
notifyView = true;
this.address = myAddress;
}
@Override
public void notifyCacheStarted(String cacheName) {
realOne.notifyCacheStarted(cacheName);
}
@Override
public void notifyCacheStopped(String cacheName) {
realOne.notifyCacheStopped(cacheName);
}
@Override
public void notifyMerge(List<Address> members, List<Address> oldMembers, Address myAddress, int viewId, List<List<Address>> subgroupsMerged) {
realOne.notifyMerge(members, oldMembers, myAddress, viewId, subgroupsMerged);
}
@Override
public void addListener(Object listener) {
realOne.addListener(listener);
}
@Override
public void removeListener(Object listener) {
realOne.removeListener(listener);
}
@Override
public Set<Object> getListeners() {
return realOne.getListeners();
}
}
public void testViewChange() throws Exception {
EmbeddedCacheManager cmA = TestCacheManagerFactory.createClusteredCacheManager();
cmA.getCache();
CountDownLatch barrier = new CountDownLatch(1);
GetCacheManagerCheckListener listener = new GetCacheManagerCheckListener(barrier);
cmA.addListener(listener);
CacheContainer cmB = TestCacheManagerFactory.createClusteredCacheManager();
cmB.getCache();
try {
barrier.await();
assert listener.cacheContainer != null;
} finally {
TestingUtil.killCacheManagers(cmA, cmB);
}
}
@Listener
static public class GetCacheManagerCheckListener {
CacheContainer cacheContainer;
CountDownLatch barrier;
public GetCacheManagerCheckListener(CountDownLatch barrier) {
this.barrier = barrier;
}
@ViewChanged
public void onViewChange(ViewChangedEvent e) throws Exception {
cacheContainer = e.getCacheManager();
barrier.countDown();
}
}
}