public void init(final NodeEngine nodeEngine, Properties properties) {
int partitionCount = nodeEngine.getPartitionService().getPartitionCount();
for (int i = 0; i < partitionCount; i++) {
partitionContainers[i] = new PartitionContainer(this, i);
}
final LockService lockService = nodeEngine.getSharedService(LockService.SERVICE_NAME);
if (lockService != null) {
lockService.registerLockStoreConstructor(
SERVICE_NAME,
new ConstructorFunction<ObjectNamespace, LockStoreInfo>() {
public LockStoreInfo createNew(final ObjectNamespace key) {
final MapContainer mapContainer = getMapContainer(key.getObjectName());
return new LockStoreInfo() {
public int getBackupCount() {
return mapContainer.getBackupCount();
}
public int getAsyncBackupCount() {
return mapContainer.getAsyncBackupCount();
}
};
}
});
}
mapEvictionManager.init();
}
public Runnable prepareMergeRunnable() {
Map<MapContainer, Collection<Record>> recordMap =
new HashMap<MapContainer, Collection<Record>>(mapContainers.size());
InternalPartitionService partitionService = nodeEngine.getPartitionService();
int partitionCount = partitionService.getPartitionCount();
Address thisAddress = nodeEngine.getClusterService().getThisAddress();
for (MapContainer mapContainer : mapContainers.values()) {
for (int i = 0; i < partitionCount; i++) {
RecordStore recordStore = getPartitionContainer(i).getRecordStore(mapContainer.getName());
// add your owned entries to the map so they will be merged
if (thisAddress.equals(partitionService.getPartitionOwner(i))) {
Collection<Record> records = recordMap.get(mapContainer);
if (records == null) {
records = new ArrayList<Record>();
recordMap.put(mapContainer, records);
}
records.addAll(recordStore.getReadonlyRecordMap().values());
}
// clear all records either owned or backup
recordStore.reset();
}
}
return new Merger(recordMap);
}
public void invalidateAllNearCaches(String mapName, Set<Data> keys) {
if (!isNearCacheEnabled(mapName)) {
return;
}
if (keys == null || keys.isEmpty()) {
return;
}
// send operation.
Operation operation =
new NearCacheKeySetInvalidationOperation(mapName, keys).setServiceName(SERVICE_NAME);
Collection<MemberImpl> members = nodeEngine.getClusterService().getMemberList();
for (MemberImpl member : members) {
try {
if (member.localMember()) continue;
nodeEngine.getOperationService().send(operation, member.getAddress());
} catch (Throwable throwable) {
logger.warning(throwable);
}
}
// below local invalidation is for the case the data is cached before partition is
// owned/migrated
for (final Data key : keys) {
invalidateNearCache(mapName, key);
}
}
@SuppressWarnings("unchecked")
public void dispatchEvent(EventData eventData, EntryListener listener) {
Member member = nodeEngine.getClusterService().getMember(eventData.getCaller());
EntryEvent event =
new DataAwareEntryEvent(
member,
eventData.getEventType(),
eventData.getMapName(),
eventData.getDataKey(),
eventData.getDataNewValue(),
eventData.getDataOldValue(),
getSerializationService());
switch (event.getEventType()) {
case ADDED:
listener.entryAdded(event);
break;
case EVICTED:
listener.entryEvicted(event);
break;
case UPDATED:
listener.entryUpdated(event);
break;
case REMOVED:
listener.entryRemoved(event);
break;
default:
throw new IllegalArgumentException("Invalid event type: " + event.getEventType());
}
MapContainer mapContainer = getMapContainer(eventData.getMapName());
if (mapContainer.getMapConfig().isStatisticsEnabled()) {
getLocalMapStatsImpl(eventData.getMapName()).incrementReceivedEvents();
}
}
public Data toData(Object object) {
if (object == null) return null;
if (object instanceof Data) {
return (Data) object;
} else {
return nodeEngine.getSerializationService().toData(object);
}
}
public Object toObject(Object data) {
if (data == null) return null;
if (data instanceof Data) {
return nodeEngine.toObject(data);
} else {
return data;
}
}
public Data toData(Object object, PartitioningStrategy partitionStrategy) {
if (object == null) return null;
if (object instanceof Data) {
return (Data) object;
} else {
return nodeEngine.getSerializationService().toData(object, partitionStrategy);
}
}
public String addEventListener(
EntryListener entryListener, EventFilter eventFilter, String mapName) {
EventRegistration registration =
nodeEngine
.getEventService()
.registerListener(SERVICE_NAME, mapName, eventFilter, entryListener);
return registration.getId();
}
public void invalidateAllNearCaches(String mapName, Data key) {
if (!isNearCacheEnabled(mapName)) {
return;
}
Collection<MemberImpl> members = nodeEngine.getClusterService().getMemberList();
for (MemberImpl member : members) {
try {
if (member.localMember()) continue;
Operation operation =
new InvalidateNearCacheOperation(mapName, key).setServiceName(SERVICE_NAME);
nodeEngine.getOperationService().send(operation, member.getAddress());
} catch (Throwable throwable) {
throw new HazelcastException(throwable);
}
}
// below local invalidation is for the case the data is cached before partition is
// owned/migrated
invalidateNearCache(mapName, key);
}
@Override
public void onReplicationEvent(WanReplicationEvent replicationEvent) {
Object eventObject = replicationEvent.getEventObject();
if (eventObject instanceof MapReplicationUpdate) {
MapReplicationUpdate replicationUpdate = (MapReplicationUpdate) eventObject;
EntryView entryView = replicationUpdate.getEntryView();
MapMergePolicy mergePolicy = replicationUpdate.getMergePolicy();
String mapName = replicationUpdate.getMapName();
MapContainer mapContainer = getMapContainer(mapName);
MergeOperation operation =
new MergeOperation(
mapName,
toData(entryView.getKey(), mapContainer.getPartitioningStrategy()),
entryView,
mergePolicy);
try {
int partitionId = nodeEngine.getPartitionService().getPartitionId(entryView.getKey());
Future f =
nodeEngine
.getOperationService()
.invokeOnPartition(SERVICE_NAME, operation, partitionId);
f.get();
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
} else if (eventObject instanceof MapReplicationRemove) {
MapReplicationRemove replicationRemove = (MapReplicationRemove) eventObject;
WanOriginatedDeleteOperation operation =
new WanOriginatedDeleteOperation(
replicationRemove.getMapName(), replicationRemove.getKey());
try {
int partitionId =
nodeEngine.getPartitionService().getPartitionId(replicationRemove.getKey());
Future f =
nodeEngine
.getOperationService()
.invokeOnPartition(SERVICE_NAME, operation, partitionId);
f.get();
} catch (Throwable t) {
throw ExceptionUtil.rethrow(t);
}
}
}
public MapService(NodeEngine nodeEngine) {
this.nodeEngine = nodeEngine;
this.mapEvictionManager = new MapEvictionManager(this);
this.replicaWaitSecondsForScheduledTasks =
getNodeEngine()
.getGroupProperties()
.MAP_REPLICA_WAIT_SECONDS_FOR_SCHEDULED_TASKS
.getInteger()
* 1000;
logger = nodeEngine.getLogger(MapService.class.getName());
partitionContainers =
new PartitionContainer[nodeEngine.getPartitionService().getPartitionCount()];
ownedPartitions = new AtomicReference<List<Integer>>();
mergePolicyMap = new ConcurrentHashMap<String, MapMergePolicy>();
mergePolicyMap.put(PutIfAbsentMapMergePolicy.class.getName(), new PutIfAbsentMapMergePolicy());
mergePolicyMap.put(HigherHitsMapMergePolicy.class.getName(), new HigherHitsMapMergePolicy());
mergePolicyMap.put(PassThroughMergePolicy.class.getName(), new PassThroughMergePolicy());
mergePolicyMap.put(
LatestUpdateMapMergePolicy.class.getName(), new LatestUpdateMapMergePolicy());
}
public QueryResult queryOnPartition(String mapName, Predicate predicate, int partitionId) {
final QueryResult result = new QueryResult();
List<QueryEntry> list = new LinkedList<QueryEntry>();
PartitionContainer container = getPartitionContainer(partitionId);
RecordStore recordStore = container.getRecordStore(mapName);
Map<Data, Record> records = recordStore.getReadonlyRecordMap();
SerializationService serializationService = nodeEngine.getSerializationService();
final PagingPredicate pagingPredicate =
predicate instanceof PagingPredicate ? (PagingPredicate) predicate : null;
Comparator<Map.Entry> wrapperComparator = SortingUtil.newComparator(pagingPredicate);
for (Record record : records.values()) {
Data key = record.getKey();
Object value = record.getValue();
if (value == null) {
continue;
}
QueryEntry queryEntry = new QueryEntry(serializationService, key, key, value);
if (predicate.apply(queryEntry)) {
if (pagingPredicate != null) {
Map.Entry anchor = pagingPredicate.getAnchor();
if (anchor != null
&& SortingUtil.compare(
pagingPredicate.getComparator(),
pagingPredicate.getIterationType(),
anchor,
queryEntry)
>= 0) {
continue;
}
}
list.add(queryEntry);
}
}
if (pagingPredicate != null) {
Collections.sort(list, wrapperComparator);
if (list.size() > pagingPredicate.getPageSize()) {
list = list.subList(0, pagingPredicate.getPageSize());
}
}
for (QueryEntry entry : list) {
result.add(
new QueryResultEntryImpl(entry.getKeyData(), entry.getKeyData(), entry.getValueData()));
}
return result;
}
public void destroyDistributedObject(String name) {
MapContainer mapContainer = mapContainers.remove(name);
if (mapContainer != null) {
if (mapContainer.isNearCacheEnabled()) {
NearCache nearCache = nearCacheMap.remove(name);
if (nearCache != null) {
nearCache.clear();
}
}
mapContainer.shutDownMapStoreScheduledExecutor();
}
final PartitionContainer[] containers = partitionContainers;
for (PartitionContainer container : containers) {
if (container != null) {
container.destroyMap(name);
}
}
nodeEngine.getEventService().deregisterAllListeners(SERVICE_NAME, name);
}
public MapMergePolicy getMergePolicy(String mergePolicyName) {
MapMergePolicy mergePolicy = mergePolicyMap.get(mergePolicyName);
if (mergePolicy == null && mergePolicyName != null) {
try {
// check if user has entered custom class name instead of policy name
mergePolicy =
ClassLoaderUtil.newInstance(nodeEngine.getConfigClassLoader(), mergePolicyName);
mergePolicyMap.put(mergePolicyName, mergePolicy);
} catch (Exception e) {
logger.severe(e);
throw ExceptionUtil.rethrow(e);
}
}
if (mergePolicy == null) {
return mergePolicyMap.get(MapConfig.DEFAULT_MAP_MERGE_POLICY);
}
return mergePolicy;
}
public SerializationService getSerializationService() {
return nodeEngine.getSerializationService();
}
public boolean removeEventListener(String mapName, String registrationId) {
return nodeEngine.getEventService().deregisterListener(SERVICE_NAME, mapName, registrationId);
}
public void publishEvent(
Address caller,
String mapName,
EntryEventType eventType,
Data dataKey,
Data dataOldValue,
Data dataValue) {
Collection<EventRegistration> candidates =
nodeEngine.getEventService().getRegistrations(SERVICE_NAME, mapName);
Set<EventRegistration> registrationsWithValue = new HashSet<EventRegistration>();
Set<EventRegistration> registrationsWithoutValue = new HashSet<EventRegistration>();
if (candidates.isEmpty()) return;
Object key = null;
Object value = null;
Object oldValue = null;
for (EventRegistration candidate : candidates) {
EventFilter filter = candidate.getFilter();
if (filter instanceof EventServiceImpl.EmptyFilter) {
registrationsWithValue.add(candidate);
} else if (filter instanceof QueryEventFilter) {
Object testValue;
if (eventType == EntryEventType.REMOVED || eventType == EntryEventType.EVICTED) {
oldValue = oldValue != null ? oldValue : toObject(dataOldValue);
testValue = oldValue;
} else {
value = value != null ? value : toObject(dataValue);
testValue = value;
}
key = key != null ? key : toObject(dataKey);
QueryEventFilter queryEventFilter = (QueryEventFilter) filter;
QueryEntry entry = new QueryEntry(getSerializationService(), dataKey, key, testValue);
if (queryEventFilter.eval(entry)) {
if (queryEventFilter.isIncludeValue()) {
registrationsWithValue.add(candidate);
} else {
registrationsWithoutValue.add(candidate);
}
}
} else if (filter.eval(dataKey)) {
EntryEventFilter eventFilter = (EntryEventFilter) filter;
if (eventFilter.isIncludeValue()) {
registrationsWithValue.add(candidate);
} else {
registrationsWithoutValue.add(candidate);
}
}
}
if (registrationsWithValue.isEmpty() && registrationsWithoutValue.isEmpty()) return;
String source = nodeEngine.getThisAddress().toString();
if (eventType == EntryEventType.REMOVED || eventType == EntryEventType.EVICTED) {
dataValue = dataValue != null ? dataValue : dataOldValue;
}
EventData event =
new EventData(
source, mapName, caller, dataKey, dataValue, dataOldValue, eventType.getType());
int orderKey = dataKey.hashCode();
nodeEngine
.getEventService()
.publishEvent(SERVICE_NAME, registrationsWithValue, event, orderKey);
nodeEngine
.getEventService()
.publishEvent(
SERVICE_NAME, registrationsWithoutValue, event.cloneWithoutValues(), orderKey);
}
private List<Integer> getMemberPartitions() {
InternalPartitionService partitionService = nodeEngine.getPartitionService();
List<Integer> partitions = partitionService.getMemberPartitions(nodeEngine.getThisAddress());
return Collections.unmodifiableList(partitions);
}
public LocalMapStatsImpl createLocalMapStats(String mapName) {
MapContainer mapContainer = getMapContainer(mapName);
LocalMapStatsImpl localMapStats = getLocalMapStatsImpl(mapName);
if (!mapContainer.getMapConfig().isStatisticsEnabled()) {
return localMapStats;
}
long ownedEntryCount = 0;
long backupEntryCount = 0;
long dirtyCount = 0;
long ownedEntryMemoryCost = 0;
long backupEntryMemoryCost = 0;
long hits = 0;
long lockedEntryCount = 0;
long heapCost = 0;
int backupCount = mapContainer.getTotalBackupCount();
ClusterService clusterService = nodeEngine.getClusterService();
final InternalPartitionService partitionService = nodeEngine.getPartitionService();
Address thisAddress = clusterService.getThisAddress();
for (int partitionId = 0; partitionId < partitionService.getPartitionCount(); partitionId++) {
InternalPartition partition = partitionService.getPartition(partitionId);
Address owner = partition.getOwner();
if (owner == null) {
// no-op because no owner is set yet. Therefor we don't know anything about the map
continue;
}
if (owner.equals(thisAddress)) {
PartitionContainer partitionContainer = getPartitionContainer(partitionId);
RecordStore recordStore = partitionContainer.getExistingRecordStore(mapName);
// we don't want to force loading the record store because we are loading statistics. So
// that is why
// we ask for 'getExistingRecordStore' instead of 'getRecordStore' which does the load.
if (recordStore != null) {
heapCost += recordStore.getHeapCost();
Map<Data, Record> records = recordStore.getReadonlyRecordMap();
for (Record record : records.values()) {
RecordStatistics stats = record.getStatistics();
// there is map store and the record is dirty (waits to be stored)
ownedEntryCount++;
ownedEntryMemoryCost += record.getCost();
localMapStats.setLastAccessTime(stats.getLastAccessTime());
localMapStats.setLastUpdateTime(stats.getLastUpdateTime());
hits += stats.getHits();
if (recordStore.isLocked(record.getKey())) {
lockedEntryCount++;
}
}
}
} else {
for (int replica = 1; replica <= backupCount; replica++) {
Address replicaAddress = partition.getReplicaAddress(replica);
int tryCount = 30;
// wait if the partition table is not updated yet
while (replicaAddress == null
&& clusterService.getSize() > backupCount
&& tryCount-- > 0) {
try {
Thread.sleep(100);
} catch (InterruptedException e) {
throw ExceptionUtil.rethrow(e);
}
replicaAddress = partition.getReplicaAddress(replica);
}
if (replicaAddress != null && replicaAddress.equals(thisAddress)) {
PartitionContainer partitionContainer = getPartitionContainer(partitionId);
RecordStore recordStore = partitionContainer.getRecordStore(mapName);
heapCost += recordStore.getHeapCost();
Map<Data, Record> records = recordStore.getReadonlyRecordMap();
for (Record record : records.values()) {
backupEntryCount++;
backupEntryMemoryCost += record.getCost();
}
} else if (replicaAddress == null && clusterService.getSize() > backupCount) {
logger.warning("Partition: " + partition + ", replica: " + replica + " has no owner!");
}
}
}
}
if (mapContainer.getMapStoreScheduler() != null) {
dirtyCount = mapContainer.getMapStoreScheduler().size();
}
localMapStats.setBackupCount(backupCount);
localMapStats.setDirtyEntryCount(zeroOrPositive(dirtyCount));
localMapStats.setLockedEntryCount(zeroOrPositive(lockedEntryCount));
localMapStats.setHits(zeroOrPositive(hits));
localMapStats.setOwnedEntryCount(zeroOrPositive(ownedEntryCount));
localMapStats.setBackupEntryCount(zeroOrPositive(backupEntryCount));
localMapStats.setOwnedEntryMemoryCost(zeroOrPositive(ownedEntryMemoryCost));
localMapStats.setBackupEntryMemoryCost(zeroOrPositive(backupEntryMemoryCost));
// add near cache heap cost.
heapCost += mapContainer.getNearCacheSizeEstimator().getSize();
localMapStats.setHeapCost(heapCost);
if (mapContainer.getMapConfig().isNearCacheEnabled()) {
NearCacheStatsImpl nearCacheStats = getNearCache(mapName).getNearCacheStats();
localMapStats.setNearCacheStats(nearCacheStats);
}
return localMapStats;
}
public MapContainer createNew(String mapName) {
return new MapContainer(
mapName, nodeEngine.getConfig().findMapConfig(mapName), MapService.this);
}