/*
* 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.notifications.cachemanagerlistener;
import org.infinispan.factories.annotations.Inject;
import org.infinispan.manager.EmbeddedCacheManager;
import org.infinispan.notifications.AbstractListenerImpl;
import org.infinispan.notifications.cachemanagerlistener.annotation.CacheStarted;
import org.infinispan.notifications.cachemanagerlistener.annotation.CacheStopped;
import org.infinispan.notifications.cachemanagerlistener.annotation.Merged;
import org.infinispan.notifications.cachemanagerlistener.annotation.ViewChanged;
import org.infinispan.notifications.cachemanagerlistener.event.CacheStartedEvent;
import org.infinispan.notifications.cachemanagerlistener.event.CacheStoppedEvent;
import org.infinispan.notifications.cachemanagerlistener.event.Event;
import org.infinispan.notifications.cachemanagerlistener.event.EventImpl;
import org.infinispan.notifications.cachemanagerlistener.event.MergeEvent;
import org.infinispan.notifications.cachemanagerlistener.event.ViewChangedEvent;
import org.infinispan.remoting.transport.Address;
import org.infinispan.util.logging.Log;
import org.infinispan.util.logging.LogFactory;
import java.lang.annotation.Annotation;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CopyOnWriteArrayList;
/**
* Global, shared notifications on the cache manager.
*
* @author Manik Surtani
* @since 4.0
*/
public class CacheManagerNotifierImpl extends AbstractListenerImpl implements CacheManagerNotifier {
private static final Log log = LogFactory.getLog(CacheManagerNotifierImpl.class);
private static final Map<Class<? extends Annotation>, Class> allowedListeners = new HashMap<Class<? extends Annotation>, Class>();
static {
allowedListeners.put(CacheStarted.class, CacheStartedEvent.class);
allowedListeners.put(CacheStopped.class, CacheStoppedEvent.class);
allowedListeners.put(ViewChanged.class, ViewChangedEvent.class);
allowedListeners.put(Merged.class, MergeEvent.class);
}
final List<ListenerInvocation> cacheStartedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
final List<ListenerInvocation> cacheStoppedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
final List<ListenerInvocation> viewChangedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
final List<ListenerInvocation> mergeListeners = new CopyOnWriteArrayList<ListenerInvocation>();
private EmbeddedCacheManager cacheManager;
public CacheManagerNotifierImpl() {
listenersMap.put(CacheStarted.class, cacheStartedListeners);
listenersMap.put(CacheStopped.class, cacheStoppedListeners);
listenersMap.put(ViewChanged.class, viewChangedListeners);
listenersMap.put(Merged.class, mergeListeners);
}
@Inject
public void injectCacheManager(EmbeddedCacheManager cacheManager) {
this.cacheManager = cacheManager;
}
public void notifyViewChange(List<Address> members, List<Address> oldMembers, Address myAddress, int viewId) {
if (!viewChangedListeners.isEmpty()) {
EventImpl e = new EventImpl();
e.setLocalAddress(myAddress);
e.setMergeView(false);
e.setViewId(viewId);
e.setNewMembers(members);
e.setOldMembers(oldMembers);
e.setCacheManager(cacheManager);
e.setType(Event.Type.VIEW_CHANGED);
for (ListenerInvocation listener : viewChangedListeners) listener.invoke(e);
}
}
public void notifyMerge(List<Address> members, List<Address> oldMembers, Address myAddress, int viewId, List<List<Address>> subgroupsMerged) {
if (!mergeListeners.isEmpty()) {
EventImpl e = new EventImpl();
e.setLocalAddress(myAddress);
e.setViewId(viewId);
e.setMergeView(true);
e.setNewMembers(members);
e.setOldMembers(oldMembers);
e.setCacheManager(cacheManager);
e.setSubgroupsMerged(subgroupsMerged);
e.setType(Event.Type.MERGED);
for (ListenerInvocation listener : mergeListeners) listener.invoke(e);
}
}
public void notifyCacheStarted(String cacheName) {
if (!cacheStartedListeners.isEmpty()) {
EventImpl e = new EventImpl();
e.setCacheName(cacheName);
e.setCacheManager(cacheManager);
e.setType(Event.Type.CACHE_STARTED);
for (ListenerInvocation listener : cacheStartedListeners) listener.invoke(e);
}
}
public void notifyCacheStopped(String cacheName) {
if (!cacheStoppedListeners.isEmpty()) {
EventImpl e = new EventImpl();
e.setCacheName(cacheName);
e.setCacheManager(cacheManager);
e.setType(Event.Type.CACHE_STOPPED);
for (ListenerInvocation listener : cacheStoppedListeners) listener.invoke(e);
}
}
protected Log getLog() {
return log;
}
protected Map<Class<? extends Annotation>, Class> getAllowedMethodAnnotations() {
return allowedListeners;
}
}