Examples of com.hazelcast.map.impl.MapServiceContext

com.hazelcast.map.impl.MapServiceContext
Context which is needed by a map service.
Shared instances, configurations of all maps can be reached over this context.
Also this context provides some support methods which are used in map operations and {@link RecordStore} implementations.For example all {@link PartitionContainer} and {@link MapContainer} instancescan also be reached by using this interface.
It is also responsible for providing methods which are used by lower layers of Hazelcast and exposed on {@link MapService}.
@see MapManagedService


    public void run() {
        backupRecordInfos = new ArrayList<RecordInfo>();
        backupEntrySet = new ArrayList<Map.Entry<Data, Data>>();
        int partitionId = getPartitionId();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        RecordStore recordStore = mapServiceContext.getRecordStore(partitionId, name);
        Set<Map.Entry<Data, Data>> entries = entrySet.getEntrySet();
        InternalPartitionService partitionService = getNodeEngine().getPartitionService();
        Set<Data> keysToInvalidate = new HashSet<Data>();
        for (Map.Entry<Data, Data> entry : entries) {
            Data dataKey = entry.getKey();
            Data dataValue = entry.getValue();
            if (partitionId == partitionService.getPartitionId(dataKey)) {
                Data dataOldValue = null;
                if (initialLoad) {
                    recordStore.putFromLoad(dataKey, dataValue, -1);
                } else {
                    dataOldValue = mapServiceContext.toData(recordStore.put(dataKey, dataValue, -1));
                }
                mapServiceContext.interceptAfterPut(name, dataValue);
                EntryEventType eventType = dataOldValue == null ? EntryEventType.ADDED : EntryEventType.UPDATED;
                final MapEventPublisher mapEventPublisher = mapServiceContext.getMapEventPublisher();
                mapEventPublisher.publishEvent(getCallerAddress(), name, eventType, dataKey, dataOldValue, dataValue);
                keysToInvalidate.add(dataKey);


                // check in case of an expiration.
                final Record record = recordStore.getRecordOrNull(dataKey);
                if (record == null) {
                    continue;
                }
                if (mapContainer.getWanReplicationPublisher() != null && mapContainer.getWanMergePolicy() != null) {
                    final Data dataValueAsData = mapServiceContext.toData(dataValue);
                    final EntryView entryView = EntryViews.createSimpleEntryView(dataKey, dataValueAsData, record);
                    mapEventPublisher.publishWanReplicationUpdate(name, entryView);
                }
                backupEntrySet.add(entry);
                RecordInfo replicationInfo = Records.buildRecordInfo(recordStore.getRecord(dataKey));

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        mapService.getMapServiceContext().interceptAfterPut(name, value);
    }


    private void publishEntryEvent(Data key, Data previousValue, Data newValue) {
        final EntryEventType eventType = previousValue == null ? EntryEventType.ADDED : EntryEventType.UPDATED;
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final MapEventPublisher mapEventPublisher = mapServiceContext.getMapEventPublisher();
        mapEventPublisher.publishEvent(getCallerAddress(), name, eventType, key, previousValue, newValue);
    }

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    private int writeBehindQueueSize(HazelcastInstance node, String mapName) {
        int size = 0;
        final NodeEngineImpl nodeEngine = getNode(node).getNodeEngine();
        MapService mapService = nodeEngine.getService(MapService.SERVICE_NAME);
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final int partitionCount = nodeEngine.getPartitionService().getPartitionCount();
        for (int i = 0; i < partitionCount; i++) {
            final RecordStore recordStore = mapServiceContext.getExistingRecordStore(i, mapName);
            if (recordStore == null) {
                continue;
            }
            final MapDataStore<Data, Object> mapDataStore
                    = recordStore.getMapDataStore();

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    private boolean isEvictablePerNode(MapContainer mapContainer) {
        int nodeTotalSize = 0;
        final MaxSizeConfig maxSizeConfig = mapContainer.getMapConfig().getMaxSizeConfig();
        final int maxSize = getApproximateMaxSize(maxSizeConfig.getSize());
        final String mapName = mapContainer.getName();
        final MapServiceContext mapServiceContext = mapContainer.getMapServiceContext();
        final List<Integer> partitionIds = findPartitionIds();
        for (int partitionId : partitionIds) {
            final PartitionContainer container = mapServiceContext.getPartitionContainer(partitionId);
            if (container == null) {
                continue;
            }
            nodeTotalSize += getRecordStoreSize(mapName, container);
            if (nodeTotalSize >= maxSize) {

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        }
        return false;
    }


    private boolean isEvictablePerPartition(final MapContainer mapContainer, int partitionId) {
        final MapServiceContext mapServiceContext = mapContainer.getMapServiceContext();
        final MaxSizeConfig maxSizeConfig = mapContainer.getMapConfig().getMaxSizeConfig();
        final int maxSize = getApproximateMaxSize(maxSizeConfig.getSize());
        final String mapName = mapContainer.getName();
        final PartitionContainer container = mapServiceContext.getPartitionContainer(partitionId);
        if (container == null) {
            return false;
        }
        final int size = getRecordStoreSize(mapName, container);
        return size >= maxSize;

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    }


    private long getUsedHeapSize(final MapContainer mapContainer) {
        long heapCost = 0L;
        final String mapName = mapContainer.getName();
        final MapServiceContext mapServiceContext = mapContainer.getMapServiceContext();
        final List<Integer> partitionIds = findPartitionIds();
        for (int partitionId : partitionIds) {
            final PartitionContainer container = mapServiceContext.getPartitionContainer(partitionId);
            if (container == null) {
                continue;
            }
            heapCost += getRecordStoreHeapCost(mapName, container);
        }

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    @Override
    protected Object reduce(Map<Integer, Object> map) {
        int total = 0;
        MapService mapService = getService();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        for (Object result : map.values()) {
            Integer size = (Integer) mapServiceContext.toObject(result);
            total += size;
        }
        final Address thisAddress = mapServiceContext.getNodeEngine().getThisAddress();
        if (total > 0) {
            mapServiceContext.getMapEventPublisher().publishMapEvent(thisAddress, name, EntryEventType.EVICT_ALL, total);
        }
        return total;
    }

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        super.innerBeforeRun();
        this.recordStore = getRecordStore();
    }


    protected RecordStore getRecordStore() {
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        return mapServiceContext.getRecordStore(getPartitionId(), name);
    }

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            return oldValue;
        }
    }


    protected MapEventPublisher getMapEventPublisher() {
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        return mapServiceContext.getMapEventPublisher();
    }

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        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        return mapServiceContext.getMapEventPublisher();
    }


    protected LocalMapStatsImpl getLocalMapStats() {
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final LocalMapStatsProvider localMapStatsProvider = mapServiceContext.getLocalMapStatsProvider();
        return localMapStatsProvider.getLocalMapStatsImpl(name);
    }

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