package org.infinispan.notifications.cachemanagerlistener;
import org.infinispan.factories.annotations.Stop;
import org.infinispan.manager.CacheManager;
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.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.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);
}
final List<ListenerInvocation> cacheStartedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
final List<ListenerInvocation> cacheStoppedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
final List<ListenerInvocation> viewChangedListeners = new CopyOnWriteArrayList<ListenerInvocation>();
private CacheManager cacheManager;
public CacheManagerNotifierImpl() {
listenersMap.put(CacheStarted.class, cacheStartedListeners);
listenersMap.put(CacheStopped.class, cacheStoppedListeners);
listenersMap.put(ViewChanged.class, viewChangedListeners);
}
public void injectCacheManager(CacheManager cacheManager) {
this.cacheManager = cacheManager;
}
public void notifyViewChange(List<Address> members, Address myAddress) {
if (!viewChangedListeners.isEmpty()) {
EventImpl e = new EventImpl();
e.setLocalAddress(myAddress);
e.setNewMemberList(members);
e.setCacheManager(cacheManager);
e.setType(Event.Type.VIEW_CHANGED);
for (ListenerInvocation listener : viewChangedListeners) 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);
}
}
@Stop
void stop() {
if (syncProcessor != null) syncProcessor.shutdownNow();
if (asyncProcessor != null) asyncProcessor.shutdownNow();
}
protected Log getLog() {
return log;
}
protected Map<Class<? extends Annotation>, Class> getAllowedMethodAnnotations() {
return allowedListeners;
}
}