Examples with SiddhiQueryContext io.siddhi.core.config.SiddhiQueryContext used on opensource projects

Example 6 with SiddhiQueryContext

use of io.siddhi.core.config.SiddhiQueryContext in project siddhi by wso2.

the class Window method init.

/**
 * Initialize the WindowEvent table by creating {@link WindowProcessor} to handle the events.
 *
 * @param tableMap         map of {@link Table}s
 * @param eventWindowMap   map of EventWindows
 * @param windowName       name of the query window belongs to.
 * @param findToBeExecuted will find will be executed on the window.
 */
public void init(Map<String, Table> tableMap, Map<String, Window> eventWindowMap, String windowName, boolean findToBeExecuted) {
    if (this.windowProcessor != null) {
        return;
    }
    // Create and initialize MetaStreamEvent
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addInputDefinition(windowDefinition);
    metaStreamEvent.setEventType(MetaStreamEvent.EventType.WINDOW);
    for (Attribute attribute : windowDefinition.getAttributeList()) {
        metaStreamEvent.addOutputData(attribute);
    }
    this.streamEventFactory = new StreamEventFactory(metaStreamEvent);
    StreamEventCloner streamEventCloner = new StreamEventCloner(metaStreamEvent, this.streamEventFactory);
    OutputStream.OutputEventType outputEventType = windowDefinition.getOutputEventType();
    boolean outputExpectsExpiredEvents = outputEventType != OutputStream.OutputEventType.CURRENT_EVENTS;
    SiddhiQueryContext siddhiQueryContext = new SiddhiQueryContext(siddhiAppContext, windowName);
    WindowProcessor internalWindowProcessor = (WindowProcessor) SingleInputStreamParser.generateProcessor(windowDefinition.getWindow(), metaStreamEvent, new ArrayList<VariableExpressionExecutor>(), tableMap, false, outputExpectsExpiredEvents, findToBeExecuted, siddhiQueryContext);
    internalWindowProcessor.setStreamEventCloner(streamEventCloner);
    internalWindowProcessor.constructStreamEventPopulater(metaStreamEvent, 0);
    EntryValveProcessor entryValveProcessor = null;
    if (internalWindowProcessor instanceof SchedulingProcessor) {
        entryValveProcessor = new EntryValveProcessor(this.siddhiAppContext);
        Scheduler scheduler = SchedulerParser.parse(entryValveProcessor, siddhiQueryContext);
        scheduler.init(this.lockWrapper, windowName);
        scheduler.setStreamEventFactory(streamEventFactory);
        ((SchedulingProcessor) internalWindowProcessor).setScheduler(scheduler);
    }
    if (entryValveProcessor != null) {
        entryValveProcessor.setToLast(internalWindowProcessor);
        this.windowProcessor = entryValveProcessor;
    } else {
        this.windowProcessor = internalWindowProcessor;
    }
    // StreamPublishProcessor must be the last in chain so that it can publish the events to StreamJunction
    this.windowProcessor.setToLast(new StreamPublishProcessor(outputEventType));
    this.internalWindowProcessor = internalWindowProcessor;
}

Example 7 with SiddhiQueryContext

use of io.siddhi.core.config.SiddhiQueryContext in project siddhi by wso2.

the class AbstractQueryableRecordTable method initCache.

@Override
public void initCache(TableDefinition tableDefinition, SiddhiAppContext siddhiAppContext, StreamEventCloner storeEventCloner, ConfigReader configReader) {
    String[] annotationNames = { ANNOTATION_STORE, ANNOTATION_CACHE };
    Annotation cacheTableAnnotation = getAnnotation(annotationNames, tableDefinition.getAnnotations());
    if (cacheTableAnnotation != null) {
        cacheEnabled = true;
        maxCacheSize = Integer.parseInt(cacheTableAnnotation.getElement(CACHE_TABLE_SIZE));
        TableDefinition cacheTableDefinition = TableDefinition.id(tableDefinition.getId());
        for (Attribute attribute : tableDefinition.getAttributeList()) {
            cacheTableDefinition.attribute(attribute.getName(), attribute.getType());
        }
        for (Annotation annotation : tableDefinition.getAnnotations()) {
            if (!annotation.getName().equalsIgnoreCase("Store")) {
                cacheTableDefinition.annotation(annotation);
            }
        }
        String cachePolicy = cacheTableAnnotation.getElement(ANNOTATION_CACHE_POLICY);
        if (cachePolicy == null || cachePolicy.equalsIgnoreCase("FIFO")) {
            cachePolicy = "FIFO";
            cacheTable = new CacheTableFIFO();
        } else if (cachePolicy.equalsIgnoreCase("LRU")) {
            cacheTable = new CacheTableLRU();
        } else if (cachePolicy.equalsIgnoreCase("LFU")) {
            cacheTable = new CacheTableLFU();
        } else {
            throw new SiddhiAppCreationException(siddhiAppContext.getName() + " : Cache policy can only be one " + "of FIFO, LRU, and LFU but given as " + cachePolicy);
        }
        // check if cache expiry enabled and initialize relevant parameters
        if (cacheTableAnnotation.getElement(ANNOTATION_CACHE_RETENTION_PERIOD) != null) {
            cacheExpiryEnabled = true;
            retentionPeriod = Expression.Time.timeToLong(cacheTableAnnotation.getElement(ANNOTATION_CACHE_RETENTION_PERIOD));
            if (cacheTableAnnotation.getElement(ANNOTATION_CACHE_PURGE_INTERVAL) == null) {
                purgeInterval = retentionPeriod;
            } else {
                purgeInterval = Expression.Time.timeToLong(cacheTableAnnotation.getElement(ANNOTATION_CACHE_PURGE_INTERVAL));
            }
            storeSizeCheckInterval = purgeInterval * 5;
        } else {
            storeSizeCheckInterval = 10000;
        }
        ((CacheTable) cacheTable).initCacheTable(cacheTableDefinition, configReader, siddhiAppContext, recordTableHandler, cacheExpiryEnabled, maxCacheSize, cachePolicy);
        // creating objects needed to load cache
        SiddhiQueryContext siddhiQueryContext = new SiddhiQueryContext(siddhiAppContext, CACHE_QUERY_NAME + tableDefinition.getId());
        MatchingMetaInfoHolder matchingMetaInfoHolder = generateMatchingMetaInfoHolderForCacheTable(tableDefinition);
        OnDemandQuery onDemandQuery = OnDemandQuery.query().from(InputStore.store(tableDefinition.getId())).select(Selector.selector().limit(Expression.value((maxCacheSize + 1))));
        List<VariableExpressionExecutor> variableExpressionExecutors = new ArrayList<>();
        compiledConditionForCaching = compileCondition(Expression.value(true), matchingMetaInfoHolder, variableExpressionExecutors, tableMap, siddhiQueryContext);
        List<Attribute> expectedOutputAttributes = buildExpectedOutputAttributes(onDemandQuery, tableMap, SiddhiConstants.UNKNOWN_STATE, matchingMetaInfoHolder, siddhiQueryContext);
        compiledSelectionForCaching = compileSelection(onDemandQuery.getSelector(), expectedOutputAttributes, matchingMetaInfoHolder, variableExpressionExecutors, tableMap, siddhiQueryContext);
        outputAttributesForCaching = expectedOutputAttributes.toArray(new Attribute[0]);
        QueryParserHelper.reduceMetaComplexEvent(matchingMetaInfoHolder.getMetaStateEvent());
        QueryParserHelper.updateVariablePosition(matchingMetaInfoHolder.getMetaStateEvent(), variableExpressionExecutors);
        compiledSelectionForSelectAll = generateCSForSelectAll();
    }
}

Example 8 with SiddhiQueryContext

use of io.siddhi.core.config.SiddhiQueryContext in project siddhi by wso2.

the class CacheExpirer method generateExpiryCompiledCondition.

private CompiledCondition generateExpiryCompiledCondition() {
    MetaStreamEvent tableMetaStreamEvent = new MetaStreamEvent();
    tableMetaStreamEvent.setEventType(MetaStreamEvent.EventType.TABLE);
    TableDefinition matchingTableDefinition = TableDefinition.id(cacheTable.getTableDefinition().getId());
    for (Attribute attribute : cacheTable.getTableDefinition().getAttributeList()) {
        tableMetaStreamEvent.addOutputData(attribute);
        matchingTableDefinition.attribute(attribute.getName(), attribute.getType());
    }
    tableMetaStreamEvent.addInputDefinition(matchingTableDefinition);
    streamEventFactory = new StreamEventFactory(tableMetaStreamEvent);
    Variable rightExpressionForSubtract = new Variable(CACHE_TABLE_TIMESTAMP_ADDED);
    rightExpressionForSubtract.setStreamId(cacheTable.getTableDefinition().getId());
    Expression rightExpressionForCompare = new LongConstant(retentionPeriod);
    Compare.Operator greaterThanOperator = Compare.Operator.GREATER_THAN;
    MetaStreamEvent currentTimeMetaStreamEvent = new MetaStreamEvent();
    currentTimeMetaStreamEvent.setEventType(MetaStreamEvent.EventType.TABLE);
    Attribute currentTimeAttribute = new Attribute(CACHE_EXPIRE_CURRENT_TIME, Attribute.Type.LONG);
    currentTimeMetaStreamEvent.addOutputData(currentTimeAttribute);
    TableDefinition currentTimeTableDefinition = TableDefinition.id("");
    currentTimeTableDefinition.attribute(CACHE_EXPIRE_CURRENT_TIME, Attribute.Type.LONG);
    currentTimeMetaStreamEvent.addInputDefinition(currentTimeTableDefinition);
    MetaStateEvent metaStateEvent = new MetaStateEvent(2);
    metaStateEvent.addEvent(currentTimeMetaStreamEvent);
    metaStateEvent.addEvent(tableMetaStreamEvent);
    MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(metaStateEvent, 0, cacheTable.getTableDefinition(), 0);
    List<VariableExpressionExecutor> variableExpressionExecutors = new ArrayList<>();
    Expression leftExpressionForSubtract = new Variable(CACHE_EXPIRE_CURRENT_TIME);
    Expression leftExpressionForCompare = new Subtract(leftExpressionForSubtract, rightExpressionForSubtract);
    Expression deleteCondition = new Compare(leftExpressionForCompare, greaterThanOperator, rightExpressionForCompare);
    SiddhiQueryContext siddhiQueryContext = new SiddhiQueryContext(siddhiAppContext, "expiryDeleteQuery");
    return cacheTable.compileCondition(deleteCondition, matchingMetaInfoHolder, variableExpressionExecutors, tableMap, siddhiQueryContext);
}

Example 9 with SiddhiQueryContext

use of io.siddhi.core.config.SiddhiQueryContext in project siddhi by wso2.

the class OnDemandQueryParser method parse.

public static OnDemandQueryRuntime parse(OnDemandQuery onDemandQuery, String onDemandQueryString, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, Map<String, Window> windowMap, Map<String, AggregationRuntime> aggregationMap) {
    final LockWrapper lockWrapper = new LockWrapper("OnDemandQueryLock");
    lockWrapper.setLock(new ReentrantLock());
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    int metaPosition = SiddhiConstants.UNKNOWN_STATE;
    String queryName;
    Table table;
    SiddhiQueryContext siddhiQueryContext;
    Expression onCondition;
    SnapshotService.getSkipStateStorageThreadLocal().set(true);
    switch(onDemandQuery.getType()) {
        case FIND:
            Within within = null;
            Expression per = null;
            queryName = "store_select_query_" + onDemandQuery.getInputStore().getStoreId();
            siddhiQueryContext = new SiddhiOnDemandQueryContext(siddhiAppContext, queryName, onDemandQueryString);
            InputStore inputStore = onDemandQuery.getInputStore();
            try {
                onCondition = Expression.value(true);
                metaStreamEvent.setInputReferenceId(inputStore.getStoreReferenceId());
                if (inputStore instanceof AggregationInputStore) {
                    AggregationInputStore aggregationInputStore = (AggregationInputStore) inputStore;
                    if (aggregationMap.get(inputStore.getStoreId()) == null) {
                        throw new OnDemandQueryCreationException("Aggregation \"" + inputStore.getStoreId() + "\" has not been defined");
                    }
                    if (aggregationInputStore.getPer() != null && aggregationInputStore.getWithin() != null) {
                        within = aggregationInputStore.getWithin();
                        per = aggregationInputStore.getPer();
                    } else if (aggregationInputStore.getPer() != null || aggregationInputStore.getWithin() != null) {
                        throw new OnDemandQueryCreationException(inputStore.getStoreId() + " should either have both 'within' and 'per' " + "defined or none.");
                    }
                    if (((AggregationInputStore) inputStore).getOnCondition() != null) {
                        onCondition = ((AggregationInputStore) inputStore).getOnCondition();
                    }
                } else if (inputStore instanceof ConditionInputStore) {
                    if (((ConditionInputStore) inputStore).getOnCondition() != null) {
                        onCondition = ((ConditionInputStore) inputStore).getOnCondition();
                    }
                }
                List<VariableExpressionExecutor> variableExpressionExecutors = new ArrayList<>();
                table = tableMap.get(inputStore.getStoreId());
                if (table != null) {
                    return constructOnDemandQueryRuntime(table, onDemandQuery, tableMap, windowMap, metaPosition, onCondition, metaStreamEvent, variableExpressionExecutors, lockWrapper, siddhiQueryContext);
                } else {
                    AggregationRuntime aggregation = aggregationMap.get(inputStore.getStoreId());
                    if (aggregation != null) {
                        return constructOnDemandQueryRuntime(aggregation, onDemandQuery, tableMap, windowMap, within, per, onCondition, metaStreamEvent, variableExpressionExecutors, lockWrapper, siddhiQueryContext);
                    } else {
                        Window window = windowMap.get(inputStore.getStoreId());
                        if (window != null) {
                            return constructOnDemandQueryRuntime(window, onDemandQuery, tableMap, windowMap, metaPosition, onCondition, metaStreamEvent, variableExpressionExecutors, lockWrapper, siddhiQueryContext);
                        } else {
                            throw new OnDemandQueryCreationException(inputStore.getStoreId() + " is neither a table, aggregation or window");
                        }
                    }
                }
            } finally {
                SnapshotService.getSkipStateStorageThreadLocal().set(null);
            }
        case INSERT:
            InsertIntoStream inserIntoStreamt = (InsertIntoStream) onDemandQuery.getOutputStream();
            queryName = "store_insert_query_" + inserIntoStreamt.getId();
            siddhiQueryContext = new SiddhiOnDemandQueryContext(siddhiAppContext, queryName, onDemandQueryString);
            onCondition = Expression.value(true);
            return getOnDemandQueryRuntime(onDemandQuery, tableMap, windowMap, metaPosition, lockWrapper, metaStreamEvent, inserIntoStreamt, onCondition, siddhiQueryContext);
        case DELETE:
            DeleteStream deleteStream = (DeleteStream) onDemandQuery.getOutputStream();
            queryName = "store_delete_query_" + deleteStream.getId();
            siddhiQueryContext = new SiddhiOnDemandQueryContext(siddhiAppContext, queryName, onDemandQueryString);
            onCondition = deleteStream.getOnDeleteExpression();
            return getOnDemandQueryRuntime(onDemandQuery, tableMap, windowMap, metaPosition, lockWrapper, metaStreamEvent, deleteStream, onCondition, siddhiQueryContext);
        case UPDATE:
            UpdateStream outputStream = (UpdateStream) onDemandQuery.getOutputStream();
            queryName = "store_update_query_" + outputStream.getId();
            siddhiQueryContext = new SiddhiOnDemandQueryContext(siddhiAppContext, queryName, onDemandQueryString);
            onCondition = outputStream.getOnUpdateExpression();
            return getOnDemandQueryRuntime(onDemandQuery, tableMap, windowMap, metaPosition, lockWrapper, metaStreamEvent, outputStream, onCondition, siddhiQueryContext);
        case UPDATE_OR_INSERT:
            UpdateOrInsertStream onDemandQueryOutputStream = (UpdateOrInsertStream) onDemandQuery.getOutputStream();
            queryName = "store_update_or_insert_query_" + onDemandQueryOutputStream.getId();
            siddhiQueryContext = new SiddhiOnDemandQueryContext(siddhiAppContext, queryName, onDemandQueryString);
            onCondition = onDemandQueryOutputStream.getOnUpdateExpression();
            return getOnDemandQueryRuntime(onDemandQuery, tableMap, windowMap, metaPosition, lockWrapper, metaStreamEvent, onDemandQueryOutputStream, onCondition, siddhiQueryContext);
        default:
            return null;
    }
}

Example 10 with SiddhiQueryContext

use of io.siddhi.core.config.SiddhiQueryContext in project siddhi by wso2.

the class AggregationParser method parse.

public static AggregationRuntime parse(AggregationDefinition aggregationDefinition, SiddhiAppContext siddhiAppContext, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, Map<String, Window> windowMap, Map<String, AggregationRuntime> aggregationMap, SiddhiAppRuntimeBuilder siddhiAppRuntimeBuilder) {
    // set timeZone for aggregation
    String timeZone = getTimeZone(siddhiAppContext);
    boolean isDebugEnabled = log.isDebugEnabled();
    boolean isPersistedAggregation = false;
    boolean isReadOnly = false;
    if (!validateTimeZone(timeZone)) {
        throw new SiddhiAppCreationException("Given timeZone '" + timeZone + "' for aggregations is invalid. Please provide a valid time zone.");
    }
    // get aggregation name
    String aggregatorName = aggregationDefinition.getId();
    if (isDebugEnabled) {
        log.debug("Incremental aggregation initialization process started for aggregation " + aggregatorName);
    }
    Annotation aggregationProperties = AnnotationHelper.getAnnotation(ANNOTATION_PERSISTED_AGGREGATION, aggregationDefinition.getAnnotations());
    if (aggregationProperties != null) {
        String persistedAggregationMode = aggregationProperties.getElement(ANNOTATION_ELEMENT_ENABLE);
        isPersistedAggregation = persistedAggregationMode == null || Boolean.parseBoolean(persistedAggregationMode);
        String readOnlyMode = aggregationProperties.getElement(ANNOTATION_ELEMENT_IS_READ_ONLY);
        isReadOnly = Boolean.parseBoolean(readOnlyMode);
    }
    if (isPersistedAggregation) {
        aggregationDefinition.getSelector().getSelectionList().stream().forEach(outputAttribute -> {
            if (outputAttribute.getExpression() instanceof AttributeFunction && ((AttributeFunction) outputAttribute.getExpression()).getName().equals("distinctCount")) {
                throw new SiddhiAppCreationException("Aggregation function 'distinctCount' does not supported " + "with persisted aggregation type please use default incremental aggregation");
            }
        });
    }
    if (isDebugEnabled) {
        log.debug("Aggregation mode is defined as " + (isPersistedAggregation ? "persisted" : "inMemory") + " for aggregation " + aggregatorName);
    }
    if (aggregationDefinition.getTimePeriod() == null) {
        throw new SiddhiAppCreationException("Aggregation Definition '" + aggregationDefinition.getId() + "'s timePeriod is null. " + "Hence, can't create the siddhi app '" + siddhiAppContext.getName() + "'", aggregationDefinition.getQueryContextStartIndex(), aggregationDefinition.getQueryContextEndIndex());
    }
    if (aggregationDefinition.getSelector() == null) {
        throw new SiddhiAppCreationException("Aggregation Definition '" + aggregationDefinition.getId() + "'s selection is not defined. " + "Hence, can't create the siddhi app '" + siddhiAppContext.getName() + "'", aggregationDefinition.getQueryContextStartIndex(), aggregationDefinition.getQueryContextEndIndex());
    }
    if (streamDefinitionMap.get(aggregationDefinition.getBasicSingleInputStream().getStreamId()) == null) {
        throw new SiddhiAppCreationException("Stream " + aggregationDefinition.getBasicSingleInputStream().getStreamId() + " has not been defined");
    }
    // Check if the user defined primary keys exists for @store annotation on aggregation if yes, an error is
    // is thrown
    Element userDefinedPrimaryKey = AnnotationHelper.getAnnotationElement(SiddhiConstants.ANNOTATION_PRIMARY_KEY, null, aggregationDefinition.getAnnotations());
    if (userDefinedPrimaryKey != null) {
        throw new SiddhiAppCreationException("Aggregation Tables have predefined primary key, but found '" + userDefinedPrimaryKey.getValue() + "' primary key defined though annotation.");
    }
    try {
        List<VariableExpressionExecutor> incomingVariableExpressionExecutors = new ArrayList<>();
        SiddhiQueryContext siddhiQueryContext = new SiddhiQueryContext(siddhiAppContext, aggregatorName);
        StreamRuntime streamRuntime = InputStreamParser.parse(aggregationDefinition.getBasicSingleInputStream(), null, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, windowMap, aggregationMap, incomingVariableExpressionExecutors, false, siddhiQueryContext);
        // Get original meta for later use.
        MetaStreamEvent incomingMetaStreamEvent = (MetaStreamEvent) streamRuntime.getMetaComplexEvent();
        // Create new meta stream event.
        // This must hold the timestamp, group by attributes (if given) and the incremental attributes, in
        // onAfterWindowData array
        // Example format: AGG_TIMESTAMP, groupByAttribute1, groupByAttribute2, AGG_incAttribute1, AGG_incAttribute2
        // AGG_incAttribute1, AGG_incAttribute2 would have the same attribute names as in
        // finalListOfIncrementalAttributes
        // To enter data as onAfterWindowData
        incomingMetaStreamEvent.initializeOnAfterWindowData();
        // List of all aggregationDurations
        List<TimePeriod.Duration> aggregationDurations = getSortedPeriods(aggregationDefinition.getTimePeriod(), isPersistedAggregation);
        // Incoming executors will be executors for timestamp, externalTimestamp(if used),
        List<ExpressionExecutor> incomingExpressionExecutors = new ArrayList<>();
        List<IncrementalAttributeAggregator> incrementalAttributeAggregators = new ArrayList<>();
        // group by attributes (if given) and the incremental attributes expression executors
        List<Variable> groupByVariableList = aggregationDefinition.getSelector().getGroupByList();
        // Expressions to get final aggregate outputs. e.g for avg the expression is Divide expression with
        // AGG_SUM/ AGG_COUNT
        List<Expression> outputExpressions = new ArrayList<>();
        boolean isProcessingOnExternalTime = aggregationDefinition.getAggregateAttribute() != null;
        boolean isGroupBy = aggregationDefinition.getSelector().getGroupByList().size() != 0;
        final boolean isDistributed;
        ConfigManager configManager = siddhiAppContext.getSiddhiContext().getConfigManager();
        final String shardId = configManager.extractProperty("shardId");
        boolean enablePartitioning = false;
        // check if the setup is Active Active(distributed deployment) by checking availability of partitionById
        // config
        Annotation partitionById = AnnotationHelper.getAnnotation(ANNOTATION_PARTITION_BY_ID, aggregationDefinition.getAnnotations());
        if (partitionById != null) {
            String enableElement = partitionById.getElement(ANNOTATION_ELEMENT_ENABLE);
            enablePartitioning = enableElement == null || Boolean.parseBoolean(enableElement);
        }
        boolean shouldPartitionById = Boolean.parseBoolean(configManager.extractProperty("partitionById"));
        if (enablePartitioning || shouldPartitionById) {
            if (shardId == null) {
                throw new SiddhiAppCreationException("Configuration 'shardId' not provided for @partitionById " + "annotation");
            }
            isDistributed = true;
        } else {
            isDistributed = false;
        }
        if (isDebugEnabled) {
            log.debug("Distributed aggregation processing is " + (isDistributed ? "enabled" : "disabled") + " in " + aggregatorName + " aggregation ");
        }
        populateIncomingAggregatorsAndExecutors(aggregationDefinition, siddhiQueryContext, tableMap, incomingVariableExpressionExecutors, incomingMetaStreamEvent, incomingExpressionExecutors, incrementalAttributeAggregators, groupByVariableList, outputExpressions, isProcessingOnExternalTime, isDistributed, shardId);
        // check if the populateIncomingAggregatorsAndExecutors process has been completed successfully
        boolean isLatestEventColAdded = incomingMetaStreamEvent.getOutputData().get(incomingMetaStreamEvent.getOutputData().size() - 1).getName().equals(AGG_LAST_TIMESTAMP_COL);
        int baseAggregatorBeginIndex = incomingMetaStreamEvent.getOutputData().size();
        List<Expression> finalBaseExpressions = new ArrayList<>();
        boolean isOptimisedLookup = populateFinalBaseAggregators(tableMap, incomingVariableExpressionExecutors, incomingMetaStreamEvent, incomingExpressionExecutors, incrementalAttributeAggregators, siddhiQueryContext, finalBaseExpressions);
        if (isDebugEnabled) {
            log.debug("Optimised lookup mode is " + (isOptimisedLookup ? "enabled" : "disabled") + " for " + "aggregation " + aggregatorName);
        }
        // Creating an intermediate stream with aggregated stream and above extracted output variables
        StreamDefinition incomingOutputStreamDefinition = StreamDefinition.id(aggregatorName + "_intermediate");
        incomingOutputStreamDefinition.setQueryContextStartIndex(aggregationDefinition.getQueryContextStartIndex());
        incomingOutputStreamDefinition.setQueryContextEndIndex(aggregationDefinition.getQueryContextEndIndex());
        MetaStreamEvent processedMetaStreamEvent = new MetaStreamEvent();
        for (Attribute attribute : incomingMetaStreamEvent.getOutputData()) {
            incomingOutputStreamDefinition.attribute(attribute.getName(), attribute.getType());
            processedMetaStreamEvent.addOutputData(attribute);
        }
        incomingMetaStreamEvent.setOutputDefinition(incomingOutputStreamDefinition);
        processedMetaStreamEvent.addInputDefinition(incomingOutputStreamDefinition);
        processedMetaStreamEvent.setOutputDefinition(incomingOutputStreamDefinition);
        // Executors of processing meta
        List<VariableExpressionExecutor> processVariableExpressionExecutors = new ArrayList<>();
        Map<TimePeriod.Duration, List<ExpressionExecutor>> processExpressionExecutorsMap = new HashMap<>();
        Map<TimePeriod.Duration, List<ExpressionExecutor>> processExpressionExecutorsMapForFind = new HashMap<>();
        aggregationDurations.forEach(incrementalDuration -> {
            processExpressionExecutorsMap.put(incrementalDuration, constructProcessExpressionExecutors(siddhiQueryContext, tableMap, baseAggregatorBeginIndex, finalBaseExpressions, incomingOutputStreamDefinition, processedMetaStreamEvent, processVariableExpressionExecutors, isProcessingOnExternalTime, incrementalDuration, isDistributed, shardId, isLatestEventColAdded));
            processExpressionExecutorsMapForFind.put(incrementalDuration, constructProcessExpressionExecutors(siddhiQueryContext, tableMap, baseAggregatorBeginIndex, finalBaseExpressions, incomingOutputStreamDefinition, processedMetaStreamEvent, processVariableExpressionExecutors, isProcessingOnExternalTime, incrementalDuration, isDistributed, shardId, isLatestEventColAdded));
        });
        ExpressionExecutor shouldUpdateTimestamp = null;
        if (isLatestEventColAdded) {
            Expression shouldUpdateTimestampExp = new Variable(AGG_LAST_TIMESTAMP_COL);
            shouldUpdateTimestamp = ExpressionParser.parseExpression(shouldUpdateTimestampExp, processedMetaStreamEvent, 0, tableMap, processVariableExpressionExecutors, false, 0, ProcessingMode.BATCH, false, siddhiQueryContext);
        }
        List<ExpressionExecutor> outputExpressionExecutors = outputExpressions.stream().map(expression -> ExpressionParser.parseExpression(expression, processedMetaStreamEvent, 0, tableMap, processVariableExpressionExecutors, isGroupBy, 0, ProcessingMode.BATCH, false, siddhiQueryContext)).collect(Collectors.toList());
        // Create group by key generator
        Map<TimePeriod.Duration, GroupByKeyGenerator> groupByKeyGeneratorMap = new HashMap<>();
        aggregationDurations.forEach(incrementalDuration -> {
            GroupByKeyGenerator groupByKeyGenerator = null;
            if (isProcessingOnExternalTime || isGroupBy) {
                List<Expression> groupByExpressionList = new ArrayList<>();
                if (isProcessingOnExternalTime) {
                    Expression externalTimestampExpression = AttributeFunction.function("incrementalAggregator", "getAggregationStartTime", new Variable(AGG_EXTERNAL_TIMESTAMP_COL), new StringConstant(incrementalDuration.name()));
                    groupByExpressionList.add(externalTimestampExpression);
                }
                groupByExpressionList.addAll(groupByVariableList.stream().map(groupByVariable -> (Expression) groupByVariable).collect(Collectors.toList()));
                groupByKeyGenerator = new GroupByKeyGenerator(groupByExpressionList, processedMetaStreamEvent, SiddhiConstants.UNKNOWN_STATE, tableMap, processVariableExpressionExecutors, siddhiQueryContext);
            }
            groupByKeyGeneratorMap.put(incrementalDuration, groupByKeyGenerator);
        });
        // GroupBy for reading
        Map<TimePeriod.Duration, GroupByKeyGenerator> groupByKeyGeneratorMapForReading = new HashMap<>();
        if (isDistributed && !isProcessingOnExternalTime) {
            aggregationDurations.forEach(incrementalDuration -> {
                List<Expression> groupByExpressionList = new ArrayList<>();
                Expression timestampExpression = AttributeFunction.function("incrementalAggregator", "getAggregationStartTime", new Variable(AGG_START_TIMESTAMP_COL), new StringConstant(incrementalDuration.name()));
                groupByExpressionList.add(timestampExpression);
                if (isGroupBy) {
                    groupByExpressionList.addAll(groupByVariableList.stream().map(groupByVariable -> (Expression) groupByVariable).collect(Collectors.toList()));
                }
                GroupByKeyGenerator groupByKeyGenerator = new GroupByKeyGenerator(groupByExpressionList, processedMetaStreamEvent, SiddhiConstants.UNKNOWN_STATE, tableMap, processVariableExpressionExecutors, siddhiQueryContext);
                groupByKeyGeneratorMapForReading.put(incrementalDuration, groupByKeyGenerator);
            });
        } else {
            groupByKeyGeneratorMapForReading.putAll(groupByKeyGeneratorMap);
        }
        // Create new scheduler
        EntryValveExecutor entryValveExecutor = new EntryValveExecutor(siddhiAppContext);
        LockWrapper lockWrapper = new LockWrapper(aggregatorName);
        lockWrapper.setLock(new ReentrantLock());
        Scheduler scheduler = SchedulerParser.parse(entryValveExecutor, siddhiQueryContext);
        scheduler.init(lockWrapper, aggregatorName);
        scheduler.setStreamEventFactory(new StreamEventFactory(processedMetaStreamEvent));
        QueryParserHelper.reduceMetaComplexEvent(incomingMetaStreamEvent);
        QueryParserHelper.reduceMetaComplexEvent(processedMetaStreamEvent);
        QueryParserHelper.updateVariablePosition(incomingMetaStreamEvent, incomingVariableExpressionExecutors);
        QueryParserHelper.updateVariablePosition(processedMetaStreamEvent, processVariableExpressionExecutors);
        Map<TimePeriod.Duration, Table> aggregationTables = initDefaultTables(aggregatorName, aggregationDurations, processedMetaStreamEvent.getOutputStreamDefinition(), siddhiAppRuntimeBuilder, aggregationDefinition.getAnnotations(), groupByVariableList, isProcessingOnExternalTime, isDistributed);
        Map<TimePeriod.Duration, Executor> incrementalExecutorMap = buildIncrementalExecutors(processedMetaStreamEvent, processExpressionExecutorsMap, groupByKeyGeneratorMap, aggregationDurations, aggregationTables, siddhiQueryContext, aggregatorName, shouldUpdateTimestamp, timeZone, isPersistedAggregation, incomingOutputStreamDefinition, isDistributed, shardId, isProcessingOnExternalTime, aggregationDefinition, configManager, groupByVariableList, isReadOnly);
        isOptimisedLookup = isOptimisedLookup && aggregationTables.get(aggregationDurations.get(0)) instanceof QueryableProcessor;
        List<String> groupByVariablesList = groupByVariableList.stream().map(Variable::getAttributeName).collect(Collectors.toList());
        List<OutputAttribute> defaultSelectorList = new ArrayList<>();
        if (isOptimisedLookup) {
            defaultSelectorList = incomingOutputStreamDefinition.getAttributeList().stream().map((attribute) -> new OutputAttribute(new Variable(attribute.getName()))).collect(Collectors.toList());
        }
        IncrementalDataPurger incrementalDataPurger = new IncrementalDataPurger();
        incrementalDataPurger.init(aggregationDefinition, new StreamEventFactory(processedMetaStreamEvent), aggregationTables, isProcessingOnExternalTime, siddhiQueryContext, aggregationDurations, timeZone, windowMap, aggregationMap);
        // Recreate in-memory data from tables
        IncrementalExecutorsInitialiser incrementalExecutorsInitialiser = new IncrementalExecutorsInitialiser(aggregationDurations, aggregationTables, incrementalExecutorMap, isDistributed, shardId, siddhiAppContext, processedMetaStreamEvent, tableMap, windowMap, aggregationMap, timeZone, isReadOnly, isPersistedAggregation);
        IncrementalExecutor rootIncrementalExecutor = (IncrementalExecutor) incrementalExecutorMap.get(aggregationDurations.get(0));
        rootIncrementalExecutor.setScheduler(scheduler);
        // Connect entry valve to root incremental executor
        entryValveExecutor.setNextExecutor(rootIncrementalExecutor);
        QueryParserHelper.initStreamRuntime(streamRuntime, incomingMetaStreamEvent, lockWrapper, aggregatorName);
        LatencyTracker latencyTrackerFind = null;
        LatencyTracker latencyTrackerInsert = null;
        ThroughputTracker throughputTrackerFind = null;
        ThroughputTracker throughputTrackerInsert = null;
        if (siddhiAppContext.getStatisticsManager() != null) {
            latencyTrackerFind = QueryParserHelper.createLatencyTracker(siddhiAppContext, aggregationDefinition.getId(), METRIC_INFIX_AGGREGATIONS, METRIC_TYPE_FIND);
            latencyTrackerInsert = QueryParserHelper.createLatencyTracker(siddhiAppContext, aggregationDefinition.getId(), METRIC_INFIX_AGGREGATIONS, METRIC_TYPE_INSERT);
            throughputTrackerFind = QueryParserHelper.createThroughputTracker(siddhiAppContext, aggregationDefinition.getId(), METRIC_INFIX_AGGREGATIONS, METRIC_TYPE_FIND);
            throughputTrackerInsert = QueryParserHelper.createThroughputTracker(siddhiAppContext, aggregationDefinition.getId(), METRIC_INFIX_AGGREGATIONS, METRIC_TYPE_INSERT);
        }
        AggregationRuntime aggregationRuntime = new AggregationRuntime(aggregationDefinition, isProcessingOnExternalTime, isDistributed, aggregationDurations, incrementalExecutorMap, aggregationTables, outputExpressionExecutors, processExpressionExecutorsMapForFind, shouldUpdateTimestamp, groupByKeyGeneratorMapForReading, isOptimisedLookup, defaultSelectorList, groupByVariablesList, isLatestEventColAdded, baseAggregatorBeginIndex, finalBaseExpressions, incrementalDataPurger, incrementalExecutorsInitialiser, ((SingleStreamRuntime) streamRuntime), processedMetaStreamEvent, latencyTrackerFind, throughputTrackerFind, timeZone);
        streamRuntime.setCommonProcessor(new IncrementalAggregationProcessor(aggregationRuntime, incomingExpressionExecutors, processedMetaStreamEvent, latencyTrackerInsert, throughputTrackerInsert, siddhiAppContext));
        return aggregationRuntime;
    } catch (Throwable t) {
        ExceptionUtil.populateQueryContext(t, aggregationDefinition, siddhiAppContext);
        throw t;
    }
}