public String addItemListener(ItemListener<E> listener, boolean includeValue) {
final EventService eventService = getNodeEngine().getEventService();
final EventRegistration registration =
eventService.registerListener(
getServiceName(), name, new CollectionEventFilter(includeValue), listener);
return registration.getId();
}
private void sendMemberAttributeEvent(
MemberImpl member, MemberAttributeOperationType operationType, String key, Object value) {
final MemberAttributeServiceEvent event =
new MemberAttributeServiceEvent(this, member, operationType, key, value);
MemberAttributeEvent attributeEvent =
new MemberAttributeEvent(this, member, operationType, key, value);
Collection<MembershipAwareService> membershipAwareServices =
nodeEngine.getServices(MembershipAwareService.class);
if (membershipAwareServices != null && !membershipAwareServices.isEmpty()) {
for (final MembershipAwareService service : membershipAwareServices) {
// service events should not block each other
nodeEngine
.getExecutionService()
.execute(
ExecutionService.SYSTEM_EXECUTOR,
new Runnable() {
public void run() {
service.memberAttributeChanged(event);
}
});
}
}
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(SERVICE_NAME, SERVICE_NAME);
for (EventRegistration reg : registrations) {
eventService.publishEvent(SERVICE_NAME, reg, attributeEvent, reg.getId().hashCode());
}
}
void sendClientEvent(ClientEvent event) {
final EventService eventService = nodeEngine.getEventService();
final Collection<EventRegistration> regs =
eventService.getRegistrations(SERVICE_NAME, SERVICE_NAME);
String uuid = event.getUuid();
eventService.publishEvent(SERVICE_NAME, regs, event, uuid.hashCode());
}
@Override
public Object call() throws Exception {
final ClientEndpoint endpoint = getEndpoint();
final ClientEngine clientEngine = getClientEngine();
ItemListener listener =
new ItemListener() {
@Override
public void itemAdded(ItemEvent item) {
send(item);
}
@Override
public void itemRemoved(ItemEvent item) {
send(item);
}
private void send(ItemEvent event) {
if (endpoint.live()) {
Data item = serializationService.toData(event.getItem());
final ItemEventType eventType = event.getEventType();
final String uuid = event.getMember().getUuid();
PortableItemEvent portableItemEvent = new PortableItemEvent(item, eventType, uuid);
endpoint.sendEvent(portableItemEvent, getCallId());
}
}
};
final EventService eventService = clientEngine.getEventService();
final CollectionEventFilter filter = new CollectionEventFilter(includeValue);
final EventRegistration registration =
eventService.registerListener(getServiceName(), name, filter, listener);
final String registrationId = registration.getId();
endpoint.setListenerRegistration(getServiceName(), name, registrationId);
return registrationId;
}
/**
* - Sends eviction event. - Invalidates near cache.
*
* @param key the key to be processed.
* @param value the value to be processed.
*/
@Override
public void doPostEvictionOperations(Data key, Object value, boolean isExpired) {
MapEventPublisher mapEventPublisher = mapServiceContext.getMapEventPublisher();
NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
EventService eventService = nodeEngine.getEventService();
if (!eventService.hasEventRegistration(SERVICE_NAME, name)) {
return;
}
Address thisAddress = nodeEngine.getThisAddress();
// Fire EVICTED event also in case of expiration because historically eviction-listener
// listens all kind of eviction and expiration events and by firing EVICTED event we are
// preserving
// this behavior.
mapEventPublisher.publishEvent(thisAddress, name, EVICTED, key, value, null);
if (isExpired) {
// We will be in this if in two cases:
// 1. In case of TTL or max-idle-seconds expiration.
// 2. When evicting due to the size-based eviction, we are also firing an EXPIRED event
// because there is a possibility that evicted entry may be also an expired one. Trying to
// catch
// as much as possible expired entries.
mapEventPublisher.publishEvent(thisAddress, name, EXPIRED, key, value, null);
}
}
private void sendMembershipEventNotifications(
MemberImpl member, Set<Member> members, final boolean added) {
int eventType = added ? MembershipEvent.MEMBER_ADDED : MembershipEvent.MEMBER_REMOVED;
MembershipEvent membershipEvent = new MembershipEvent(this, member, eventType, members);
Collection<MembershipAwareService> membershipAwareServices =
nodeEngine.getServices(MembershipAwareService.class);
if (membershipAwareServices != null && !membershipAwareServices.isEmpty()) {
final MembershipServiceEvent event = new MembershipServiceEvent(membershipEvent);
for (final MembershipAwareService service : membershipAwareServices) {
nodeEngine
.getExecutionService()
.execute(
MEMBERSHIP_EVENT_EXECUTOR_NAME,
new Runnable() {
public void run() {
if (added) {
service.memberAdded(event);
} else {
service.memberRemoved(event);
}
}
});
}
}
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(SERVICE_NAME, SERVICE_NAME);
for (EventRegistration reg : registrations) {
eventService.publishEvent(SERVICE_NAME, reg, membershipEvent, reg.getId().hashCode());
}
}
private void flushInvalidationMessages(
String cacheName, InvalidationEventQueue invalidationMessageQueue) {
// If still in progress, no need to another attempt. So just ignore.
if (invalidationMessageQueue.tryAcquire()) {
try {
CacheBatchInvalidationMessage batchInvalidationMessage =
new CacheBatchInvalidationMessage(cacheName, invalidationMessageQueue.size());
CacheSingleInvalidationMessage invalidationMessage;
final int size = invalidationMessageQueue.size();
// At most, poll from the invalidation queue as the current size of the queue before start
// to polling.
// So skip new invalidation queue items offered while the polling in progress in this round.
for (int i = 0; i < size; i++) {
invalidationMessage = invalidationMessageQueue.poll();
if (invalidationMessage == null) {
break;
}
batchInvalidationMessage.addInvalidationMessage(invalidationMessage);
}
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(ICacheService.SERVICE_NAME, cacheName);
if (!registrations.isEmpty()) {
eventService.publishEvent(
ICacheService.SERVICE_NAME,
registrations,
batchInvalidationMessage,
cacheName.hashCode());
}
} finally {
invalidationMessageQueue.release();
}
}
}
Collection<EventRegistration> getRegistrations(String mapName) {
final MapServiceContext mapServiceContext = this.mapServiceContext;
final NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
final EventService eventService = nodeEngine.getEventService();
return eventService.getRegistrations(SERVICE_NAME, mapName);
}
private void sendClientEvent(ClientEndpoint endpoint) {
if (endpoint.isFirstConnection()) {
final EventService eventService = nodeEngine.getEventService();
final Collection<EventRegistration> regs =
eventService.getRegistrations(SERVICE_NAME, SERVICE_NAME);
eventService.publishEvent(SERVICE_NAME, regs, endpoint, endpoint.getUuid().hashCode());
}
}
void publishEventInternal(
Collection<EventRegistration> registrations, Object eventData, int orderKey) {
final MapServiceContext mapServiceContext = this.mapServiceContext;
final NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
final EventService eventService = nodeEngine.getEventService();
eventService.publishEvent(SERVICE_NAME, registrations, eventData, orderKey);
}
void publishEvent(String cacheName, CacheEventSet eventSet, int orderKey) {
final EventService eventService = nodeEngine.getEventService();
final Collection<EventRegistration> candidates =
eventService.getRegistrations(ICacheService.SERVICE_NAME, cacheName);
if (candidates.isEmpty()) {
return;
}
eventService.publishEvent(ICacheService.SERVICE_NAME, candidates, eventSet, orderKey);
}
@Override
public boolean deregisterListener(String name, String registrationId) {
final EventService eventService = getNodeEngine().getEventService();
boolean result = eventService.deregisterListener(SERVICE_NAME, name, registrationId);
Closeable listener = closeableListeners.remove(registrationId);
if (listener != null) {
IOUtil.closeResource(listener);
}
return result;
}
void publishEvent(CacheEventContext cacheEventContext) {
final EventService eventService = nodeEngine.getEventService();
final String cacheName = cacheEventContext.getCacheName();
final Collection<EventRegistration> candidates =
eventService.getRegistrations(ICacheService.SERVICE_NAME, cacheName);
if (candidates.isEmpty()) {
return;
}
final Object eventData;
final CacheEventType eventType = cacheEventContext.getEventType();
switch (eventType) {
case CREATED:
case UPDATED:
case REMOVED:
case EXPIRED:
final CacheEventData cacheEventData =
new CacheEventDataImpl(
cacheName,
eventType,
cacheEventContext.getDataKey(),
cacheEventContext.getDataValue(),
cacheEventContext.getDataOldValue(),
cacheEventContext.isOldValueAvailable());
CacheEventSet eventSet = new CacheEventSet(eventType, cacheEventContext.getCompletionId());
eventSet.addEventData(cacheEventData);
eventData = eventSet;
break;
case EVICTED:
case INVALIDATED:
eventData =
new CacheEventDataImpl(
cacheName, eventType, cacheEventContext.getDataKey(), null, null, false);
break;
case COMPLETED:
CacheEventData completedEventData =
new CacheEventDataImpl(
cacheName,
eventType,
cacheEventContext.getDataKey(),
cacheEventContext.getDataValue(),
null,
false);
eventSet = new CacheEventSet(eventType, cacheEventContext.getCompletionId());
eventSet.addEventData(completedEventData);
eventData = eventSet;
break;
default:
throw new IllegalArgumentException(
"Event Type not defined to create an eventData during publish : " + eventType.name());
}
eventService.publishEvent(
ICacheService.SERVICE_NAME, candidates, eventData, cacheEventContext.getOrderKey());
}
public String addListener(
String name, EventListener listener, Data key, boolean includeValue, boolean local) {
EventService eventService = nodeEngine.getEventService();
EventRegistration registration;
final MultiMapEventFilter filter = new MultiMapEventFilter(includeValue, key);
if (local) {
registration = eventService.registerLocalListener(SERVICE_NAME, name, filter, listener);
} else {
registration = eventService.registerListener(SERVICE_NAME, name, filter, listener);
}
return registration.getId();
}
private void sendSingleInvalidationEvent(String name, Data key, String sourceUuid) {
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(ICacheService.SERVICE_NAME, name);
if (!registrations.isEmpty()) {
eventService.publishEvent(
ICacheService.SERVICE_NAME,
registrations,
new CacheSingleInvalidationMessage(name, key, sourceUuid),
name.hashCode());
}
}
public void publishEvent(ItemEventType eventType, Data data) {
EventService eventService = getNodeEngine().getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(getServiceName(), name);
for (EventRegistration registration : registrations) {
QueueEventFilter filter = (QueueEventFilter) registration.getFilter();
QueueEvent event =
new QueueEvent(
name,
filter.isIncludeValue() ? data : null,
eventType,
getNodeEngine().getThisAddress());
eventService.publishEvent(getServiceName(), registration, event, name.hashCode());
}
}
public void fireMapClearedEvent(int deletedEntrySize, String name) {
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations = eventService.getRegistrations(SERVICE_NAME, name);
if (registrations.isEmpty()) {
return;
}
MapEventData mapEventData =
new MapEventData(
name,
name,
nodeEngine.getThisAddress(),
EntryEventType.CLEAR_ALL.getType(),
deletedEntrySize);
eventService.publishEvent(SERVICE_NAME, registrations, mapEventData, name.hashCode());
}
public void fireEntryListenerEvent(
Data key, Data oldValue, Data value, EntryEventType eventType, String name, Address caller) {
Collection<EventRegistration> registrations = eventService.getRegistrations(SERVICE_NAME, name);
if (registrations.isEmpty()) {
return;
}
EntryEventData eventData =
new EntryEventData(name, name, caller, key, value, oldValue, eventType.getType());
for (EventRegistration registration : registrations) {
if (!shouldPublish(key, oldValue, value, eventType, registration.getFilter())) {
continue;
}
eventService.publishEvent(SERVICE_NAME, registration, eventData, key.hashCode());
}
}
public String addEventListener(
EventListener entryListener, EventFilter eventFilter, String mapName) {
if (config.isLiteMember()) {
throw new ReplicatedMapCantBeCreatedOnLiteMemberException(nodeEngine.getThisAddress());
}
EventRegistration registration =
eventService.registerLocalListener(SERVICE_NAME, mapName, eventFilter, entryListener);
return registration.getId();
}
public boolean removeEventListener(String mapName, String registrationId) {
if (config.isLiteMember()) {
throw new ReplicatedMapCantBeCreatedOnLiteMemberException(nodeEngine.getThisAddress());
}
if (registrationId == null) {
throw new IllegalArgumentException("registrationId cannot be null");
}
return eventService.deregisterListener(SERVICE_NAME, mapName, registrationId);
}
public String addMembershipListener(MembershipListener listener) {
checkNotNull(listener, "listener cannot be null");
EventService eventService = nodeEngine.getEventService();
EventRegistration registration;
if (listener instanceof InitialMembershipListener) {
lock.lock();
try {
((InitialMembershipListener) listener).init(new InitialMembershipEvent(this, getMembers()));
registration = eventService.registerLocalListener(SERVICE_NAME, SERVICE_NAME, listener);
} finally {
lock.unlock();
}
} else {
registration = eventService.registerLocalListener(SERVICE_NAME, SERVICE_NAME, listener);
}
return registration.getId();
}
@Override
public void deregisterAllListener(String name) {
final EventService eventService = getNodeEngine().getEventService();
final Collection<EventRegistration> registrations =
eventService.getRegistrations(SERVICE_NAME, name);
if (registrations != null) {
for (EventRegistration registration : registrations) {
Closeable listener = closeableListeners.remove(registration.getId());
if (listener != null) {
IOUtil.closeResource(listener);
}
}
}
eventService.deregisterAllListeners(AbstractCacheService.SERVICE_NAME, name);
CacheContext cacheContext = cacheContexts.get(name);
if (cacheContext != null) {
cacheContext.resetCacheEntryListenerCount();
cacheContext.resetInvalidationListenerCount();
}
}
@Test
public void testListenerRegistrations() throws Exception {
final String mapName = "testListener";
HazelcastInstance instance1 = Hazelcast.newHazelcastInstance();
final HazelcastInstance client1 = HazelcastClient.newHazelcastClient();
final IMap<Object, Object> map = client1.getMap(mapName);
map.addEntryListener(
new EntryListener<Object, Object>() {
@Override
public void entryAdded(EntryEvent<Object, Object> event) {}
@Override
public void entryRemoved(EntryEvent<Object, Object> event) {}
@Override
public void entryUpdated(EntryEvent<Object, Object> event) {}
@Override
public void entryEvicted(EntryEvent<Object, Object> event) {}
@Override
public void mapEvicted(MapEvent event) {}
@Override
public void mapCleared(MapEvent event) {}
},
true);
HazelcastInstance instance2 = Hazelcast.newHazelcastInstance();
instance1.getLifecycleService().terminate();
instance1 = Hazelcast.newHazelcastInstance();
final Field original = HazelcastInstanceProxy.class.getDeclaredField("original");
original.setAccessible(true);
final HazelcastInstanceImpl impl = (HazelcastInstanceImpl) original.get(instance1);
final EventService eventService = impl.node.nodeEngine.getEventService();
final Collection<EventRegistration> regs =
eventService.getRegistrations(MapService.SERVICE_NAME, mapName);
assertEquals("there should be only one registrations", 1, regs.size());
}
private void sendBatchInvalidationEvent(String name, Data key, String sourceUuid) {
EventService eventService = nodeEngine.getEventService();
Collection<EventRegistration> registrations =
eventService.getRegistrations(ICacheService.SERVICE_NAME, name);
if (registrations.isEmpty()) {
return;
}
InvalidationEventQueue invalidationMessageQueue = invalidationMessageMap.get(name);
if (invalidationMessageQueue == null) {
InvalidationEventQueue newInvalidationMessageQueue = new InvalidationEventQueue();
invalidationMessageQueue =
invalidationMessageMap.putIfAbsent(name, newInvalidationMessageQueue);
if (invalidationMessageQueue == null) {
invalidationMessageQueue = newInvalidationMessageQueue;
}
}
CacheSingleInvalidationMessage invalidationMessage =
new CacheSingleInvalidationMessage(name, key, sourceUuid);
invalidationMessageQueue.offer(invalidationMessage);
if (invalidationMessageQueue.size() >= invalidationMessageBatchSize) {
flushInvalidationMessages(name, invalidationMessageQueue);
}
}
protected String registerListenerInternal(
String name, CacheEventListener listener, EventFilter eventFilter) {
final EventService eventService = getNodeEngine().getEventService();
final EventRegistration registration;
if (eventFilter == null) {
registration =
eventService.registerListener(AbstractCacheService.SERVICE_NAME, name, listener);
} else {
registration =
eventService.registerListener(
AbstractCacheService.SERVICE_NAME, name, eventFilter, listener);
}
final String id = registration.getId();
if (listener instanceof Closeable) {
closeableListeners.put(id, (Closeable) listener);
} else if (listener instanceof CacheEntryListenerProvider) {
CacheEntryListener cacheEntryListener =
((CacheEntryListenerProvider) listener).getCacheEntryListener();
if (cacheEntryListener instanceof Closeable) {
closeableListeners.put(id, (Closeable) cacheEntryListener);
}
}
return id;
}
protected boolean hasRegisteredListenerForThisMap() {
final EventService eventService = getNodeEngine().getEventService();
return eventService.hasEventRegistration(SERVICE_NAME, name);
}
public SerializableEventServiceBean(EventService es) {
this.eventThreadCount = es.getEventThreadCount();
this.eventQueueCapacity = es.getEventQueueCapacity();
this.eventQueueSize = es.getEventQueueSize();
}
public boolean removeListener(String name, String registrationId) {
EventService eventService = nodeEngine.getEventService();
return eventService.deregisterListener(SERVICE_NAME, name, registrationId);
}
public boolean removeMembershipListener(String registrationId) {
checkNotNull(registrationId, "registrationId cannot be null");
EventService eventService = nodeEngine.getEventService();
return eventService.deregisterListener(SERVICE_NAME, SERVICE_NAME, registrationId);
}
public boolean removeItemListener(String registrationId) {
EventService eventService = getNodeEngine().getEventService();
return eventService.deregisterListener(getServiceName(), name, registrationId);
}
