Examples with StateEvent io.siddhi.core.event.state.StateEvent used on opensource projects

Example 46 with StateEvent

use of io.siddhi.core.event.state.StateEvent in project siddhi by wso2.

the class CacheExpirer method generateDeleteEventChunk.

private ComplexEventChunk<StateEvent> generateDeleteEventChunk() {
    ComplexEventChunk<StateEvent> deleteEventChunk = new ComplexEventChunk<>();
    StateEvent stateEvent = new StateEvent(2, 0);
    StreamEvent deletingEvent = streamEventFactory.newInstance();
    deletingEvent.setOutputData(new Object[] { siddhiAppContext.getTimestampGenerator().currentTime() });
    stateEvent.addEvent(0, deletingEvent);
    deleteEventChunk.add(stateEvent);
    return deleteEventChunk;
}

Example 47 with StateEvent

use of io.siddhi.core.event.state.StateEvent in project siddhi by wso2.

the class IncrementalDataPurger method run.

@Override
public void run() {
    boolean isNeededToExecutePurgeTask = false;
    Map<String, Boolean> purgingCheckState;
    boolean isSafeToRunPurgingTask = false;
    long currentTime = System.currentTimeMillis();
    long purgeTime;
    Object[] purgeTimeArray = new Object[1];
    int i = 1;
    if (purgingHalted) {
        LOG.error(errorMessage);
        return;
    }
    for (TimePeriod.Duration duration : activeIncrementalDurations) {
        if (!retentionPeriods.get(duration).equals(RETAIN_ALL)) {
            eventChunk.clear();
            purgeTime = currentTime - retentionPeriods.get(duration);
            purgeTimeArray[0] = purgeTime;
            if (retentionPeriods.size() > i) {
                purgingCheckState = isSafeToPurgeTheDuration(purgeTime, aggregationTables.get(activeIncrementalDurations.get(i)), aggregationTables.get(duration), duration, timeZone);
                if (purgingCheckState.get(IS_DATA_AVAILABLE_TO_PURGE)) {
                    isNeededToExecutePurgeTask = true;
                    if (purgingCheckState.get(IS_PARENT_TABLE_HAS_AGGREGATED_DATA)) {
                        isSafeToRunPurgingTask = true;
                    } else {
                        isSafeToRunPurgingTask = false;
                        purgingHalted = true;
                    }
                } else {
                    isNeededToExecutePurgeTask = false;
                }
            }
            if (isNeededToExecutePurgeTask) {
                if (isSafeToRunPurgingTask) {
                    StateEvent secEvent = createStreamEvent(purgeTimeArray, currentTime);
                    eventChunk.add(secEvent);
                    Table table = aggregationTables.get(duration);
                    try {
                        if (LOG.isDebugEnabled()) {
                            LOG.debug("Purging data of table: " + table.getTableDefinition().getId() + " with a" + " retention of timestamp : " + purgeTime);
                        }
                        table.deleteEvents(eventChunk, compiledConditionsHolder.get(duration), 1);
                    } catch (RuntimeException e) {
                        LOG.error("Exception occurred while deleting events from " + table.getTableDefinition().getId() + " table", e);
                        throw new DataPurgingException("Exception occurred while deleting events from " + table.getTableDefinition().getId() + " table", e);
                    }
                } else {
                    errorMessage = "Purging task halted!!!. Data purging for table: " + aggregationTables.get(duration).getTableDefinition().getId() + " with a retention" + " of timestamp : " + purgeTime + " didn't executed since parent " + aggregationTables.get(activeIncrementalDurations.get(i)).getTableDefinition().getId() + " table does not contain values of above period. This has to be investigate since" + " this may lead to an aggregation data mismatch";
                    LOG.info(errorMessage);
                    return;
                }
            }
        }
        i++;
    }
}

Example 48 with StateEvent

use of io.siddhi.core.event.state.StateEvent in project siddhi by wso2.

the class SelectiveStateEventPopulator method populateStateEvent.

public void populateStateEvent(ComplexEvent complexEvent) {
    StateEvent stateEvent = (StateEvent) complexEvent;
    for (StateMappingElement stateMappingElement : stateMappingElements) {
        int toPosition = stateMappingElement.getToPosition();
        stateEvent.setOutputData(getFromData(stateEvent, stateMappingElement.getFromPosition()), toPosition);
    // switch (toPosition[0]) {
    // case 0:
    // stateEvent.setPreOutputData(getFromData(stateEvent, stateMappingElement.getFromPosition()),
    // toPosition[1]);
    // break;
    // case 1:
    // stateEvent.setOutputData(getFromData(stateEvent, stateMappingElement.getFromPosition()),
    // toPosition[1]);
    // break;
    // default:
    // //will not happen
    // throw new IllegalStateException("To Position cannot be :" + toPosition[0]);
    // }
    }
}

Example 49 with StateEvent

use of io.siddhi.core.event.state.StateEvent in project siddhi by wso2.

the class ExpressionParser method parseExpression.

/**
 * Parse the given expression and create the appropriate Executor by recursively traversing the expression
 *
 * @param expression                 Expression to be parsed
 * @param metaEvent                  Meta Event
 * @param currentState               Current state number
 * @param tableMap                   Event Table Map
 * @param executorList               List to hold VariableExpressionExecutors to update after query parsing
 * @param groupBy                    is for groupBy expression
 * @param defaultStreamEventIndex    Default StreamEvent Index
 * @param processingMode             processing mode of the query
 * @param outputExpectsExpiredEvents is expired events sent as output
 * @param siddhiQueryContext         current siddhi query context
 * @return ExpressionExecutor
 */
public static ExpressionExecutor parseExpression(Expression expression, MetaComplexEvent metaEvent, int currentState, Map<String, Table> tableMap, List<VariableExpressionExecutor> executorList, boolean groupBy, int defaultStreamEventIndex, ProcessingMode processingMode, boolean outputExpectsExpiredEvents, SiddhiQueryContext siddhiQueryContext) {
    try {
        if (expression instanceof And) {
            return new AndConditionExpressionExecutor(parseExpression(((And) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((And) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Or) {
            return new OrConditionExpressionExecutor(parseExpression(((Or) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Or) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Not) {
            return new NotConditionExpressionExecutor(parseExpression(((Not) expression).getExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
        } else if (expression instanceof Compare) {
            if (((Compare) expression).getOperator() == Compare.Operator.EQUAL) {
                Expression leftExpression = ((Compare) expression).getLeftExpression();
                Expression rightExpression = ((Compare) expression).getRightExpression();
                ExpressionExecutor leftExpressionExecutor = parseExpression(leftExpression, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                ExpressionExecutor rightExpressionExecutor = parseExpression(rightExpression, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                return parseEqualCompare(leftExpressionExecutor, rightExpressionExecutor);
            } else if (((Compare) expression).getOperator() == Compare.Operator.NOT_EQUAL) {
                return parseNotEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.GREATER_THAN) {
                return parseGreaterThanCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.GREATER_THAN_EQUAL) {
                return parseGreaterThanEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.LESS_THAN) {
                return parseLessThanCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            } else if (((Compare) expression).getOperator() == Compare.Operator.LESS_THAN_EQUAL) {
                return parseLessThanEqualCompare(parseExpression(((Compare) expression).getLeftExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext), parseExpression(((Compare) expression).getRightExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext));
            }
        } else if (expression instanceof Constant) {
            if (expression instanceof BoolConstant) {
                return new ConstantExpressionExecutor(((BoolConstant) expression).getValue(), Attribute.Type.BOOL);
            } else if (expression instanceof StringConstant) {
                return new ConstantExpressionExecutor(((StringConstant) expression).getValue(), Attribute.Type.STRING);
            } else if (expression instanceof IntConstant) {
                return new ConstantExpressionExecutor(((IntConstant) expression).getValue(), Attribute.Type.INT);
            } else if (expression instanceof LongConstant) {
                return new ConstantExpressionExecutor(((LongConstant) expression).getValue(), Attribute.Type.LONG);
            } else if (expression instanceof FloatConstant) {
                return new ConstantExpressionExecutor(((FloatConstant) expression).getValue(), Attribute.Type.FLOAT);
            } else if (expression instanceof DoubleConstant) {
                return new ConstantExpressionExecutor(((DoubleConstant) expression).getValue(), Attribute.Type.DOUBLE);
            }
        } else if (expression instanceof Variable) {
            return parseVariable((Variable) expression, metaEvent, currentState, executorList, defaultStreamEventIndex, siddhiQueryContext);
        } else if (expression instanceof Multiply) {
            ExpressionExecutor left = parseExpression(((Multiply) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Multiply) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new MultiplyExpressionExecutorInt(left, right);
                case LONG:
                    return new MultiplyExpressionExecutorLong(left, right);
                case FLOAT:
                    return new MultiplyExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new MultiplyExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Add) {
            ExpressionExecutor left = parseExpression(((Add) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Add) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new AddExpressionExecutorInt(left, right);
                case LONG:
                    return new AddExpressionExecutorLong(left, right);
                case FLOAT:
                    return new AddExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new AddExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Subtract) {
            ExpressionExecutor left = parseExpression(((Subtract) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Subtract) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new SubtractExpressionExecutorInt(left, right);
                case LONG:
                    return new SubtractExpressionExecutorLong(left, right);
                case FLOAT:
                    return new SubtractExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new SubtractExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Mod) {
            ExpressionExecutor left = parseExpression(((Mod) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Mod) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new ModExpressionExecutorInt(left, right);
                case LONG:
                    return new ModExpressionExecutorLong(left, right);
                case FLOAT:
                    return new ModExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new ModExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof Divide) {
            ExpressionExecutor left = parseExpression(((Divide) expression).getLeftValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            ExpressionExecutor right = parseExpression(((Divide) expression).getRightValue(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
            Attribute.Type type = parseArithmeticOperationResultType(left, right);
            switch(type) {
                case INT:
                    return new DivideExpressionExecutorInt(left, right);
                case LONG:
                    return new DivideExpressionExecutorLong(left, right);
                case FLOAT:
                    return new DivideExpressionExecutorFloat(left, right);
                case DOUBLE:
                    return new DivideExpressionExecutorDouble(left, right);
                // Will not happen. Handled in parseArithmeticOperationResultType()
                default:
            }
        } else if (expression instanceof AttributeFunction) {
            // extensions
            Object executor;
            try {
                if ((siddhiQueryContext.getSiddhiAppContext().isFunctionExist(((AttributeFunction) expression).getName())) && (((AttributeFunction) expression).getNamespace()).isEmpty()) {
                    executor = new ScriptFunctionExecutor(((AttributeFunction) expression).getName());
                } else {
                    executor = SiddhiClassLoader.loadExtensionImplementation((AttributeFunction) expression, FunctionExecutorExtensionHolder.getInstance(siddhiQueryContext.getSiddhiAppContext()));
                }
            } catch (SiddhiAppCreationException ex) {
                try {
                    executor = SiddhiClassLoader.loadExtensionImplementation((AttributeFunction) expression, AttributeAggregatorExtensionHolder.getInstance(siddhiQueryContext.getSiddhiAppContext()));
                } catch (SiddhiAppCreationException e) {
                    throw new ExtensionNotFoundException("'" + ((AttributeFunction) expression).getName() + "' is" + " neither a function extension nor an aggregated attribute extension", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                }
            }
            ConfigReader configReader = siddhiQueryContext.getSiddhiContext().getConfigManager().generateConfigReader(((AttributeFunction) expression).getNamespace(), ((AttributeFunction) expression).getName());
            if (executor instanceof FunctionExecutor) {
                FunctionExecutor expressionExecutor = (FunctionExecutor) executor;
                Expression[] innerExpressions = ((AttributeFunction) expression).getParameters();
                ExpressionExecutor[] innerExpressionExecutors = parseInnerExpression(innerExpressions, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                expressionExecutor.initExecutor(innerExpressionExecutors, processingMode, configReader, groupBy, siddhiQueryContext);
                if (expressionExecutor.getReturnType() == Attribute.Type.BOOL) {
                    return new BoolConditionExpressionExecutor(expressionExecutor);
                }
                return expressionExecutor;
            } else {
                AttributeAggregatorExecutor attributeAggregatorExecutor = (AttributeAggregatorExecutor) executor;
                Expression[] innerExpressions = ((AttributeFunction) expression).getParameters();
                ExpressionExecutor[] innerExpressionExecutors = parseInnerExpression(innerExpressions, metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                attributeAggregatorExecutor.initAggregator(innerExpressionExecutors, processingMode, outputExpectsExpiredEvents, configReader, groupBy, siddhiQueryContext);
                // AbstractAggregationAttributeExecutor aggregationAttributeProcessor;
                // if (groupBy) {
                // aggregationAttributeProcessor = new GroupByAggregationAttributeExecutor(attributeAggregatorExecutor,
                // innerExpressionExecutors, configReader, siddhiQueryContext);
                // } else {
                // aggregationAttributeProcessor = new AggregationAttributeExecutor(attributeAggregatorExecutor,
                // innerExpressionExecutors, siddhiQueryContext);
                // }
                SelectorParser.getContainsAggregatorThreadLocal().set("true");
                return attributeAggregatorExecutor;
            }
        } else if (expression instanceof In) {
            Table table = tableMap.get(((In) expression).getSourceId());
            MatchingMetaInfoHolder matchingMetaInfoHolder = MatcherParser.constructMatchingMetaStateHolder(metaEvent, defaultStreamEventIndex, table.getTableDefinition(), defaultStreamEventIndex);
            CompiledCondition compiledCondition = table.compileCondition(((In) expression).getExpression(), matchingMetaInfoHolder, executorList, tableMap, siddhiQueryContext);
            return new InConditionExpressionExecutor(table, compiledCondition, matchingMetaInfoHolder.getMetaStateEvent().getMetaStreamEvents().length, metaEvent instanceof StateEvent, 0);
        } else if (expression instanceof IsNull) {
            IsNull isNull = (IsNull) expression;
            if (isNull.getExpression() != null) {
                ExpressionExecutor innerExpressionExecutor = parseExpression(isNull.getExpression(), metaEvent, currentState, tableMap, executorList, groupBy, defaultStreamEventIndex, processingMode, outputExpectsExpiredEvents, siddhiQueryContext);
                return new IsNullConditionExpressionExecutor(innerExpressionExecutor);
            } else {
                String streamId = isNull.getStreamId();
                Integer streamIndex = isNull.getStreamIndex();
                if (metaEvent instanceof MetaStateEvent) {
                    int[] eventPosition = new int[2];
                    if (streamIndex != null) {
                        if (streamIndex <= SiddhiConstants.LAST) {
                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex + 1;
                        } else {
                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex;
                        }
                    } else {
                        eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = defaultStreamEventIndex;
                    }
                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = SiddhiConstants.UNKNOWN_STATE;
                    MetaStateEvent metaStateEvent = (MetaStateEvent) metaEvent;
                    if (streamId == null) {
                        throw new SiddhiAppCreationException("IsNull does not support streamId being null", expression.getQueryContextStartIndex(), expression.getQueryContextEndIndex());
                    } else {
                        MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
                        for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
                            MetaStreamEvent metaStreamEvent = metaStreamEvents[i];
                            AbstractDefinition definition = metaStreamEvent.getLastInputDefinition();
                            if (metaStreamEvent.getInputReferenceId() == null) {
                                if (definition.getId().equals(streamId)) {
                                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = i;
                                    break;
                                }
                            } else {
                                if (metaStreamEvent.getInputReferenceId().equals(streamId)) {
                                    eventPosition[SiddhiConstants.STREAM_EVENT_CHAIN_INDEX] = i;
                                    if (currentState > -1 && metaStreamEvents[currentState].getInputReferenceId() != null && streamIndex != null && streamIndex <= SiddhiConstants.LAST) {
                                        if (streamId.equals(metaStreamEvents[currentState].getInputReferenceId())) {
                                            eventPosition[SiddhiConstants.STREAM_EVENT_INDEX_IN_CHAIN] = streamIndex;
                                        }
                                    }
                                    break;
                                }
                            }
                        }
                    }
                    return new IsNullStreamConditionExpressionExecutor(eventPosition);
                } else {
                    return new IsNullStreamConditionExpressionExecutor(null);
                }
            }
        }
        throw new UnsupportedOperationException(expression.toString() + " not supported!");
    } catch (Throwable t) {
        ExceptionUtil.populateQueryContext(t, expression, siddhiQueryContext.getSiddhiAppContext(), siddhiQueryContext);
        throw t;
    }
}

Example 50 with StateEvent

use of io.siddhi.core.event.state.StateEvent in project siddhi by wso2.

the class SnapshotableEventQueueOperator method update.

@Override
public void update(ComplexEventChunk<StateEvent> updatingEventChunk, Object storeEvents, InMemoryCompiledUpdateSet compiledUpdateSet) {
    SnapshotableStreamEventQueue storeEventQueue = (SnapshotableStreamEventQueue) storeEvents;
    updatingEventChunk.reset();
    while (updatingEventChunk.hasNext()) {
        StateEvent updatingEvent = updatingEventChunk.next();
        try {
            storeEventQueue.reset();
            while (storeEventQueue.hasNext()) {
                StreamEvent storeEvent = storeEventQueue.next();
                updatingEvent.setEvent(storeEventPosition, storeEvent);
                if ((Boolean) expressionExecutor.execute(updatingEvent)) {
                    for (Map.Entry<Integer, ExpressionExecutor> entry : compiledUpdateSet.getExpressionExecutorMap().entrySet()) {
                        Object value = entry.getValue().execute(updatingEvent);
                        storeEvent.setOutputData(value, entry.getKey());
                    }
                    storeEventQueue.overwrite(storeEvent);
                }
            }
        } finally {
            updatingEvent.setEvent(storeEventPosition, null);
        }
    }
}