Examples of com.hazelcast.map.MapService

com.hazelcast.map.MapService
The SPI Service for the Map. @author enesakar 1/17/13

    @Override
    public Map<K, Object> executeOnKeys(Set<K> keys, EntryProcessor entryProcessor) {
        if (keys == null || keys.size() == 0) {
            throw new NullPointerException(NULL_KEY_IS_NOT_ALLOWED);
        }
        MapService service = getService();
        Set<Data> dataKeys = new HashSet<Data>(keys.size());
        for(K key : keys)
        {
            dataKeys.add(service.toData(key, partitionStrategy));
        }
        return executeOnKeysInternal(dataKeys, entryProcessor);
    }

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            throw new NullPointerException("Predicate can not be null!");
        }
        if (predicate instanceof PagingPredicate) {
            throw new IllegalArgumentException("Paging is not supported for Transactional queries");
        }
        final MapService service = getService();
        final QueryResultSet queryResultSet = (QueryResultSet) queryInternal(predicate, IterationType.ENTRY, false);
        final Set<Object> valueSet = new HashSet<Object>(); //todo: Can't we just use the original set?
        final Set<Object> keyWontBeIncluded = new HashSet<Object>();


        // delete updated or removed elements from the result set
        for (final Map.Entry<Object, TxnValueWrapper> entry : txMap.entrySet()) {
            final boolean isRemoved = TxnValueWrapper.Type.REMOVED.equals(entry.getValue().type);
            final boolean isUpdated = TxnValueWrapper.Type.UPDATED.equals(entry.getValue().type);


            if (isRemoved) {
                keyWontBeIncluded.add(entry.getKey());
            } else {
                if (isUpdated){
                    keyWontBeIncluded.add(entry.getKey());
                }
                final Object entryValue = entry.getValue().value;
                final Object objectValue = entryValue instanceof Data ?
                        service.toObject(entryValue) : entryValue;
                final QueryEntry queryEntry = new QueryEntry(null, service.toData(entry.getKey()), entry.getKey(), objectValue);
                // apply predicate on txMap.
                if (predicate.apply(queryEntry)) {
                    valueSet.add(entryValue);
                }
            }

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    @Override
    public void submitToKey(K key, EntryProcessor entryProcessor, ExecutionCallback callback) {
        if (key == null) {
            throw new NullPointerException(NULL_KEY_IS_NOT_ALLOWED);
        }
        MapService service = getService();
        Data keyData = service.toData(key, partitionStrategy);
        executeOnKeyInternal(keyData,entryProcessor,callback);
    }

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    @Override
    public ICompletableFuture submitToKey(K key, EntryProcessor entryProcessor) {
        if (key == null) {
            throw new NullPointerException(NULL_KEY_IS_NOT_ALLOWED);
        }
        MapService service = getService();
        Data keyData = service.toData(key, partitionStrategy);
        ICompletableFuture f = executeOnKeyInternal(keyData,entryProcessor,null);
        return new DelegatingFuture(f,service.getSerializationService());
    }

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        }
        return value;
    }


    private boolean notOwnerPartitionForKey(Data key) {
        final MapService mapService = getService();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
        final int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
        return !nodeEngine.getPartitionService().getPartitionOwner(partitionId)
                .equals(nodeEngine.getClusterService().getThisAddress());
    }

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    private boolean cacheKeyAnyway() {
        return getMapConfig().getNearCacheConfig().isCacheLocalEntries();
    }


    private Object putNearCache(Data key, Data value) {
        final MapService mapService = getService();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final NearCacheProvider nearCacheProvider = mapServiceContext.getNearCacheProvider();
        return nearCacheProvider.putNearCache(name, key, value);
    }

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    private Object getFromNearCache(Data key) {
        if (!getMapConfig().isNearCacheEnabled()) {
            return null;
        }
        final MapService mapService = getService();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final NearCacheProvider nearCacheProvider = mapServiceContext.getNearCacheProvider();
        final Object cached = nearCacheProvider.getFromNearCache(name, key);
        if (cached == null) {
            return null;
        }

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    private void getFromNearCache(Map<Object, Object> resultMap, Collection<Data> keys) {
        if (!getMapConfig().isNearCacheEnabled()) {
            return;
        }
        final MapService mapService = getService();
        final Iterator<Data> iterator = keys.iterator();
        while (iterator.hasNext()) {
            Data key = iterator.next();
            final Object fromNearCache = getFromNearCache(key);
            if (fromNearCache == null) {
                continue;
            }
            if (!isCachedAsNullInNearCache(fromNearCache)) {
                resultMap.put(mapService.getMapServiceContext().toObject(key),
                        mapService.getMapServiceContext().toObject(fromNearCache));
            }
            iterator.remove();
        }
    }

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        }
        return NearCache.NULL_OBJECT.equals(cached);
    }


    private Object readBackupDataOrNull(Data key) {
        final MapService mapService = getService();
        final MapServiceContext mapServiceContext = mapService.getMapServiceContext();
        final NodeEngine nodeEngine = mapServiceContext.getNodeEngine();
        final int backupCount = getMapConfig().getTotalBackupCount();
        final InternalPartitionService partitionService = nodeEngine.getPartitionService();
        for (int i = 0; i <= backupCount; i++) {
            int partitionId = partitionService.getPartitionId(key);

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    }




    protected ICompletableFuture<Data> getAsyncInternal(final Data key) {
        final NodeEngine nodeEngine = getNodeEngine();
        final MapService mapService = getService();
        int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
        final boolean nearCacheEnabled = getMapConfig().isNearCacheEnabled();
        if (nearCacheEnabled) {
            Object cached = mapService.getMapServiceContext().getNearCacheProvider().getFromNearCache(name, key);
            if (cached != null) {
                if (NearCache.NULL_OBJECT.equals(cached)) {
                    cached = null;
                }
                return new CompletedFuture<Data>(
                        nodeEngine.getSerializationService(),
                        cached,
                        nodeEngine.getExecutionService().getExecutor(ExecutionService.ASYNC_EXECUTOR));
            }
        }


        GetOperation operation = new GetOperation(name, key);
        try {
            final OperationService operationService = nodeEngine.getOperationService();
            final InvocationBuilder invocationBuilder
                    = operationService.createInvocationBuilder(SERVICE_NAME,
                    operation, partitionId).setResultDeserialized(false);
            final InternalCompletableFuture<Data> future = invocationBuilder.invoke();
            future.andThen(new ExecutionCallback<Data>() {
                @Override
                public void onResponse(Data response) {
                    if (nearCacheEnabled) {
                        int partitionId = nodeEngine.getPartitionService().getPartitionId(key);
                        if (!nodeEngine.getPartitionService().getPartitionOwner(partitionId)
                                .equals(nodeEngine.getClusterService().getThisAddress())
                                || getMapConfig().getNearCacheConfig().isCacheLocalEntries()) {
                            mapService.getMapServiceContext().getNearCacheProvider().putNearCache(name, key, response);
                        }
                    }
                }


                @Override

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