Examples with MetaStateEvent org.wso2.siddhi.core.event.state.MetaStateEvent used on opensource projects

Example 6 with MetaStateEvent

use of org.wso2.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class SingleInputStreamParser method generateProcessor.

public static Processor generateProcessor(StreamHandler streamHandler, MetaComplexEvent metaEvent, List<VariableExpressionExecutor> variableExpressionExecutors, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, boolean supportsBatchProcessing, boolean outputExpectsExpiredEvents, String queryName) {
    Expression[] parameters = streamHandler.getParameters();
    MetaStreamEvent metaStreamEvent;
    int stateIndex = SiddhiConstants.UNKNOWN_STATE;
    if (metaEvent instanceof MetaStateEvent) {
        stateIndex = ((MetaStateEvent) metaEvent).getStreamEventCount() - 1;
        metaStreamEvent = ((MetaStateEvent) metaEvent).getMetaStreamEvent(stateIndex);
    } else {
        metaStreamEvent = (MetaStreamEvent) metaEvent;
    }
    ExpressionExecutor[] attributeExpressionExecutors;
    if (parameters != null) {
        if (parameters.length > 0) {
            attributeExpressionExecutors = new ExpressionExecutor[parameters.length];
            for (int i = 0, parametersLength = parameters.length; i < parametersLength; i++) {
                attributeExpressionExecutors[i] = ExpressionParser.parseExpression(parameters[i], metaEvent, stateIndex, tableMap, variableExpressionExecutors, siddhiAppContext, false, SiddhiConstants.CURRENT, queryName);
            }
        } else {
            List<Attribute> attributeList = metaStreamEvent.getLastInputDefinition().getAttributeList();
            int parameterSize = attributeList.size();
            attributeExpressionExecutors = new ExpressionExecutor[parameterSize];
            for (int i = 0; i < parameterSize; i++) {
                attributeExpressionExecutors[i] = ExpressionParser.parseExpression(new Variable(attributeList.get(i).getName()), metaEvent, stateIndex, tableMap, variableExpressionExecutors, siddhiAppContext, false, SiddhiConstants.CURRENT, queryName);
            }
        }
    } else {
        attributeExpressionExecutors = new ExpressionExecutor[0];
    }
    ConfigReader configReader;
    if (streamHandler instanceof Filter) {
        return new FilterProcessor(attributeExpressionExecutors[0]);
    } else if (streamHandler instanceof Window) {
        WindowProcessor windowProcessor = (WindowProcessor) SiddhiClassLoader.loadExtensionImplementation((Extension) streamHandler, WindowProcessorExtensionHolder.getInstance(siddhiAppContext));
        configReader = siddhiAppContext.getSiddhiContext().getConfigManager().generateConfigReader(((Window) streamHandler).getNamespace(), ((Window) streamHandler).getName());
        windowProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), attributeExpressionExecutors, configReader, siddhiAppContext, outputExpectsExpiredEvents, queryName, streamHandler);
        return windowProcessor;
    } else if (streamHandler instanceof StreamFunction) {
        AbstractStreamProcessor abstractStreamProcessor;
        configReader = siddhiAppContext.getSiddhiContext().getConfigManager().generateConfigReader(((StreamFunction) streamHandler).getNamespace(), ((StreamFunction) streamHandler).getName());
        if (supportsBatchProcessing) {
            try {
                abstractStreamProcessor = (StreamProcessor) SiddhiClassLoader.loadExtensionImplementation((Extension) streamHandler, StreamProcessorExtensionHolder.getInstance(siddhiAppContext));
                metaStreamEvent.addInputDefinition(abstractStreamProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), attributeExpressionExecutors, configReader, siddhiAppContext, outputExpectsExpiredEvents, queryName, streamHandler));
                return abstractStreamProcessor;
            } catch (SiddhiAppCreationException e) {
                if (!e.isClassLoadingIssue()) {
                    ExceptionUtil.populateQueryContext(e, streamHandler, siddhiAppContext);
                    throw e;
                }
            }
        }
        abstractStreamProcessor = (StreamFunctionProcessor) SiddhiClassLoader.loadExtensionImplementation((Extension) streamHandler, StreamFunctionProcessorExtensionHolder.getInstance(siddhiAppContext));
        metaStreamEvent.addInputDefinition(abstractStreamProcessor.initProcessor(metaStreamEvent.getLastInputDefinition(), attributeExpressionExecutors, configReader, siddhiAppContext, outputExpectsExpiredEvents, queryName, streamHandler));
        return abstractStreamProcessor;
    } else {
        throw new SiddhiAppCreationException(streamHandler.getClass().getName() + " is not supported", streamHandler.getQueryContextStartIndex(), streamHandler.getQueryContextEndIndex());
    }
}

Example 7 with MetaStateEvent

use of org.wso2.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class SingleInputStreamParser method parseInputStream.

/**
 * Parse single InputStream and return SingleStreamRuntime
 *
 * @param inputStream                 single input stream to be parsed
 * @param siddhiAppContext            query to be parsed
 * @param variableExpressionExecutors List to hold VariableExpressionExecutors to update after query parsing
 * @param streamDefinitionMap         Stream Definition Map
 * @param tableDefinitionMap          Table Definition Map
 * @param windowDefinitionMap         window definition map
 * @param aggregationDefinitionMap    aggregation definition map
 * @param tableMap                    Table Map
 * @param metaComplexEvent            MetaComplexEvent
 * @param processStreamReceiver       ProcessStreamReceiver
 * @param supportsBatchProcessing     supports batch processing
 * @param outputExpectsExpiredEvents  is output expects ExpiredEvents
 * @param queryName                   query name of single input stream belongs to.
 *
 * @return SingleStreamRuntime
 */
public static SingleStreamRuntime parseInputStream(SingleInputStream inputStream, SiddhiAppContext siddhiAppContext, List<VariableExpressionExecutor> variableExpressionExecutors, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, MetaComplexEvent metaComplexEvent, ProcessStreamReceiver processStreamReceiver, boolean supportsBatchProcessing, boolean outputExpectsExpiredEvents, String queryName) {
    Processor processor = null;
    EntryValveProcessor entryValveProcessor = null;
    boolean first = true;
    MetaStreamEvent metaStreamEvent;
    if (metaComplexEvent instanceof MetaStateEvent) {
        metaStreamEvent = new MetaStreamEvent();
        ((MetaStateEvent) metaComplexEvent).addEvent(metaStreamEvent);
        initMetaStreamEvent(inputStream, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, metaStreamEvent);
    } else {
        metaStreamEvent = (MetaStreamEvent) metaComplexEvent;
        initMetaStreamEvent(inputStream, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, metaStreamEvent);
    }
    // A window cannot be defined for a window stream
    if (!inputStream.getStreamHandlers().isEmpty() && windowDefinitionMap != null && windowDefinitionMap.containsKey(inputStream.getStreamId())) {
        for (StreamHandler handler : inputStream.getStreamHandlers()) {
            if (handler instanceof Window) {
                throw new OperationNotSupportedException("Cannot create " + ((Window) handler).getName() + " " + "window for the window stream " + inputStream.getStreamId());
            }
        }
    }
    if (!inputStream.getStreamHandlers().isEmpty()) {
        for (StreamHandler handler : inputStream.getStreamHandlers()) {
            Processor currentProcessor = generateProcessor(handler, metaComplexEvent, variableExpressionExecutors, siddhiAppContext, tableMap, supportsBatchProcessing, outputExpectsExpiredEvents, queryName);
            if (currentProcessor instanceof SchedulingProcessor) {
                if (entryValveProcessor == null) {
                    entryValveProcessor = new EntryValveProcessor(siddhiAppContext);
                    if (first) {
                        processor = entryValveProcessor;
                        first = false;
                    } else {
                        processor.setToLast(entryValveProcessor);
                    }
                }
                Scheduler scheduler = SchedulerParser.parse(siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, siddhiAppContext);
                ((SchedulingProcessor) currentProcessor).setScheduler(scheduler);
            }
            if (first) {
                processor = currentProcessor;
                first = false;
            } else {
                processor.setToLast(currentProcessor);
            }
        }
    }
    metaStreamEvent.initializeAfterWindowData();
    return new SingleStreamRuntime(processStreamReceiver, processor, metaComplexEvent);
}

Example 8 with MetaStateEvent

use of org.wso2.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class StateInputStreamParser method parse.

private static InnerStateRuntime parse(StateElement stateElement, Map<String, AbstractDefinition> streamDefinitionMap, Map<String, AbstractDefinition> tableDefinitionMap, Map<String, AbstractDefinition> windowDefinitionMap, Map<String, AbstractDefinition> aggregationDefinitionMap, Map<String, Table> tableMap, MetaStateEvent metaStateEvent, SiddhiAppContext siddhiAppContext, List<VariableExpressionExecutor> variableExpressionExecutors, Map<String, ProcessStreamReceiver> processStreamReceiverMap, StreamPreStateProcessor streamPreStateProcessor, StreamPostStateProcessor streamPostStateProcessor, StateInputStream.Type stateType, ArrayList<Map.Entry<Long, Set<Integer>>> withinStates, LatencyTracker latencyTracker, String queryName) {
    if (stateElement instanceof StreamStateElement) {
        BasicSingleInputStream basicSingleInputStream = ((StreamStateElement) stateElement).getBasicSingleInputStream();
        SingleStreamRuntime singleStreamRuntime = SingleInputStreamParser.parseInputStream(basicSingleInputStream, siddhiAppContext, variableExpressionExecutors, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, processStreamReceiverMap.get(basicSingleInputStream.getUniqueStreamIds().get(0)), false, false, queryName);
        int stateIndex = metaStateEvent.getStreamEventCount() - 1;
        if (streamPreStateProcessor == null) {
            if (stateElement.getWithin() != null) {
                Set<Integer> withinStateset = new HashSet<Integer>();
                withinStateset.add(SiddhiConstants.ANY);
                withinStates.add(0, new AbstractMap.SimpleEntry<Long, Set<Integer>>(stateElement.getWithin().getValue(), withinStateset));
            }
            if (stateElement instanceof AbsentStreamStateElement) {
                AbsentStreamPreStateProcessor absentProcessor = new AbsentStreamPreStateProcessor(stateType, clonewithinStates(withinStates), ((AbsentStreamStateElement) stateElement).getWaitingTime());
                // Set the scheduler
                siddhiAppContext.addEternalReferencedHolder(absentProcessor);
                EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiAppContext);
                entryValveProcessor.setToLast(absentProcessor);
                Scheduler scheduler = SchedulerParser.parse(siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, siddhiAppContext);
                absentProcessor.setScheduler(scheduler);
                // Assign the AbsentStreamPreStateProcessor to streamPreStateProcessor
                streamPreStateProcessor = absentProcessor;
            } else {
                streamPreStateProcessor = new StreamPreStateProcessor(stateType, clonewithinStates(withinStates));
            }
            streamPreStateProcessor.init(siddhiAppContext, queryName);
            if (stateElement.getWithin() != null) {
                withinStates.remove(0);
            }
        }
        streamPreStateProcessor.setStateId(stateIndex);
        streamPreStateProcessor.setNextProcessor(singleStreamRuntime.getProcessorChain());
        singleStreamRuntime.setProcessorChain(streamPreStateProcessor);
        if (streamPostStateProcessor == null) {
            if (stateElement instanceof AbsentStreamStateElement) {
                streamPostStateProcessor = new AbsentStreamPostStateProcessor();
            } else {
                streamPostStateProcessor = new StreamPostStateProcessor();
            }
        }
        streamPostStateProcessor.setStateId(stateIndex);
        singleStreamRuntime.getProcessorChain().setToLast(streamPostStateProcessor);
        streamPostStateProcessor.setThisStatePreProcessor(streamPreStateProcessor);
        streamPreStateProcessor.setThisStatePostProcessor(streamPostStateProcessor);
        streamPreStateProcessor.setThisLastProcessor(streamPostStateProcessor);
        StreamInnerStateRuntime innerStateRuntime = new StreamInnerStateRuntime(stateType);
        innerStateRuntime.setFirstProcessor(streamPreStateProcessor);
        innerStateRuntime.setLastProcessor(streamPostStateProcessor);
        innerStateRuntime.addStreamRuntime(singleStreamRuntime);
        return innerStateRuntime;
    } else if (stateElement instanceof NextStateElement) {
        StateElement currentElement = ((NextStateElement) stateElement).getStateElement();
        InnerStateRuntime currentInnerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, withinStates, latencyTracker, queryName);
        if (stateElement.getWithin() != null) {
            Set<Integer> withinStateSet = new HashSet<Integer>();
            withinStateSet.add(currentInnerStateRuntime.getFirstProcessor().getStateId());
            withinStateSet.add(currentInnerStateRuntime.getLastProcessor().getStateId());
            withinStates.add(0, new AbstractMap.SimpleEntry<Long, Set<Integer>>(stateElement.getWithin().getValue(), withinStateSet));
        }
        StateElement nextElement = ((NextStateElement) stateElement).getNextStateElement();
        InnerStateRuntime nextInnerStateRuntime = parse(nextElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, withinStates, latencyTracker, queryName);
        if (stateElement.getWithin() != null) {
            withinStates.remove(0);
        }
        // currentInnerStateRuntime.getFirstProcessor().getStateId()
        currentInnerStateRuntime.getLastProcessor().setNextStatePreProcessor(nextInnerStateRuntime.getFirstProcessor());
        NextInnerStateRuntime nextStateRuntime = new NextInnerStateRuntime(currentInnerStateRuntime, nextInnerStateRuntime, stateType);
        nextStateRuntime.setFirstProcessor(currentInnerStateRuntime.getFirstProcessor());
        nextStateRuntime.setLastProcessor(nextInnerStateRuntime.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : currentInnerStateRuntime.getSingleStreamRuntimeList()) {
            nextStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        for (SingleStreamRuntime singleStreamRuntime : nextInnerStateRuntime.getSingleStreamRuntimeList()) {
            nextStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        return nextStateRuntime;
    } else if (stateElement instanceof EveryStateElement) {
        StateElement currentElement = ((EveryStateElement) stateElement).getStateElement();
        InnerStateRuntime innerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, streamPreStateProcessor, streamPostStateProcessor, stateType, withinStates, latencyTracker, queryName);
        EveryInnerStateRuntime everyInnerStateRuntime = new EveryInnerStateRuntime(innerStateRuntime, stateType);
        everyInnerStateRuntime.setFirstProcessor(innerStateRuntime.getFirstProcessor());
        everyInnerStateRuntime.setLastProcessor(innerStateRuntime.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime.getSingleStreamRuntimeList()) {
            everyInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        everyInnerStateRuntime.getLastProcessor().setNextEveryStatePerProcessor(everyInnerStateRuntime.getFirstProcessor());
        return everyInnerStateRuntime;
    } else if (stateElement instanceof LogicalStateElement) {
        LogicalStateElement.Type type = ((LogicalStateElement) stateElement).getType();
        if (stateElement.getWithin() != null) {
            Set<Integer> withinStateset = new HashSet<Integer>();
            withinStateset.add(SiddhiConstants.ANY);
            withinStates.add(0, new AbstractMap.SimpleEntry<Long, Set<Integer>>(stateElement.getWithin().getValue(), withinStateset));
        }
        LogicalPreStateProcessor logicalPreStateProcessor1;
        if (((LogicalStateElement) stateElement).getStreamStateElement1() instanceof AbsentStreamStateElement) {
            logicalPreStateProcessor1 = new AbsentLogicalPreStateProcessor(type, stateType, clonewithinStates(withinStates), ((AbsentStreamStateElement) ((LogicalStateElement) stateElement).getStreamStateElement1()).getWaitingTime());
            // Set the scheduler
            siddhiAppContext.addEternalReferencedHolder((AbsentLogicalPreStateProcessor) logicalPreStateProcessor1);
            EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiAppContext);
            entryValveProcessor.setToLast(logicalPreStateProcessor1);
            Scheduler scheduler = SchedulerParser.parse(siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, siddhiAppContext);
            ((SchedulingProcessor) logicalPreStateProcessor1).setScheduler(scheduler);
        } else {
            logicalPreStateProcessor1 = new LogicalPreStateProcessor(type, stateType, clonewithinStates(withinStates));
        }
        logicalPreStateProcessor1.init(siddhiAppContext, queryName);
        LogicalPostStateProcessor logicalPostStateProcessor1;
        if (((LogicalStateElement) stateElement).getStreamStateElement1() instanceof AbsentStreamStateElement) {
            logicalPostStateProcessor1 = new AbsentLogicalPostStateProcessor(type);
        } else {
            logicalPostStateProcessor1 = new LogicalPostStateProcessor(type);
        }
        LogicalPreStateProcessor logicalPreStateProcessor2;
        if (((LogicalStateElement) stateElement).getStreamStateElement2() instanceof AbsentStreamStateElement) {
            logicalPreStateProcessor2 = new AbsentLogicalPreStateProcessor(type, stateType, clonewithinStates(withinStates), ((AbsentStreamStateElement) ((LogicalStateElement) stateElement).getStreamStateElement2()).getWaitingTime());
            siddhiAppContext.addEternalReferencedHolder((AbsentLogicalPreStateProcessor) logicalPreStateProcessor2);
            EntryValveProcessor entryValveProcessor = new EntryValveProcessor(siddhiAppContext);
            entryValveProcessor.setToLast(logicalPreStateProcessor2);
            Scheduler scheduler = SchedulerParser.parse(siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, siddhiAppContext);
            ((SchedulingProcessor) logicalPreStateProcessor2).setScheduler(scheduler);
        } else {
            logicalPreStateProcessor2 = new LogicalPreStateProcessor(type, stateType, clonewithinStates(withinStates));
        }
        logicalPreStateProcessor2.init(siddhiAppContext, queryName);
        LogicalPostStateProcessor logicalPostStateProcessor2;
        if (((LogicalStateElement) stateElement).getStreamStateElement2() instanceof AbsentStreamStateElement) {
            logicalPostStateProcessor2 = new AbsentLogicalPostStateProcessor(type);
        } else {
            logicalPostStateProcessor2 = new LogicalPostStateProcessor(type);
        }
        if (stateElement.getWithin() != null) {
            withinStates.remove(0);
        }
        logicalPostStateProcessor1.setPartnerPreStateProcessor(logicalPreStateProcessor2);
        logicalPostStateProcessor2.setPartnerPreStateProcessor(logicalPreStateProcessor1);
        logicalPostStateProcessor1.setPartnerPostStateProcessor(logicalPostStateProcessor2);
        logicalPostStateProcessor2.setPartnerPostStateProcessor(logicalPostStateProcessor1);
        logicalPreStateProcessor1.setPartnerStatePreProcessor(logicalPreStateProcessor2);
        logicalPreStateProcessor2.setPartnerStatePreProcessor(logicalPreStateProcessor1);
        StateElement stateElement2 = ((LogicalStateElement) stateElement).getStreamStateElement2();
        InnerStateRuntime innerStateRuntime2 = parse(stateElement2, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, logicalPreStateProcessor2, logicalPostStateProcessor2, stateType, withinStates, latencyTracker, queryName);
        StateElement stateElement1 = ((LogicalStateElement) stateElement).getStreamStateElement1();
        InnerStateRuntime innerStateRuntime1 = parse(stateElement1, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, logicalPreStateProcessor1, logicalPostStateProcessor1, stateType, withinStates, latencyTracker, queryName);
        LogicalInnerStateRuntime logicalInnerStateRuntime = new LogicalInnerStateRuntime(innerStateRuntime1, innerStateRuntime2, stateType);
        logicalInnerStateRuntime.setFirstProcessor(innerStateRuntime1.getFirstProcessor());
        logicalInnerStateRuntime.setLastProcessor(innerStateRuntime2.getLastProcessor());
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime2.getSingleStreamRuntimeList()) {
            logicalInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        for (SingleStreamRuntime singleStreamRuntime : innerStateRuntime1.getSingleStreamRuntimeList()) {
            logicalInnerStateRuntime.addStreamRuntime(singleStreamRuntime);
        }
        return logicalInnerStateRuntime;
    } else if (stateElement instanceof CountStateElement) {
        int minCount = ((CountStateElement) stateElement).getMinCount();
        int maxCount = ((CountStateElement) stateElement).getMaxCount();
        if (minCount == SiddhiConstants.ANY) {
            minCount = 0;
        }
        if (maxCount == SiddhiConstants.ANY) {
            maxCount = Integer.MAX_VALUE;
        }
        if (stateElement.getWithin() != null) {
            Set<Integer> withinStateset = new HashSet<Integer>();
            withinStateset.add(SiddhiConstants.ANY);
            withinStates.add(0, new AbstractMap.SimpleEntry<Long, Set<Integer>>(stateElement.getWithin().getValue(), withinStateset));
        }
        CountPreStateProcessor countPreStateProcessor = new CountPreStateProcessor(minCount, maxCount, stateType, withinStates);
        countPreStateProcessor.init(siddhiAppContext, queryName);
        CountPostStateProcessor countPostStateProcessor = new CountPostStateProcessor(minCount, maxCount);
        if (stateElement.getWithin() != null) {
            withinStates.remove(0);
        }
        countPreStateProcessor.setCountPostStateProcessor(countPostStateProcessor);
        StateElement currentElement = ((CountStateElement) stateElement).getStreamStateElement();
        InnerStateRuntime innerStateRuntime = parse(currentElement, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, metaStateEvent, siddhiAppContext, variableExpressionExecutors, processStreamReceiverMap, countPreStateProcessor, countPostStateProcessor, stateType, withinStates, latencyTracker, queryName);
        return new CountInnerStateRuntime((StreamInnerStateRuntime) innerStateRuntime);
    } else {
        throw new OperationNotSupportedException();
    }
}

Example 9 with MetaStateEvent

use of org.wso2.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class StoreQueryParser method buildExpectedOutputAttributes.

private static List<Attribute> buildExpectedOutputAttributes(StoreQuery storeQuery, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, String queryName, int metaPosition, MatchingMetaInfoHolder metaStreamInfoHolder) {
    MetaStateEvent selectMetaStateEvent = new MetaStateEvent(metaStreamInfoHolder.getMetaStateEvent().getMetaStreamEvents());
    SelectorParser.parse(storeQuery.getSelector(), new ReturnStream(OutputStream.OutputEventType.CURRENT_EVENTS), siddhiAppContext, selectMetaStateEvent, tableMap, new ArrayList<>(), queryName, metaPosition);
    return selectMetaStateEvent.getOutputStreamDefinition().getAttributeList();
}

Example 10 with MetaStateEvent

use of org.wso2.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class QueryParserHelper method initStreamRuntime.

public static void initStreamRuntime(StreamRuntime runtime, MetaComplexEvent metaComplexEvent, LockWrapper lockWrapper, String queryName) {
    if (runtime instanceof SingleStreamRuntime) {
        initSingleStreamRuntime((SingleStreamRuntime) runtime, 0, metaComplexEvent, null, lockWrapper, queryName);
    } else {
        MetaStateEvent metaStateEvent = (MetaStateEvent) metaComplexEvent;
        StateEventPool stateEventPool = new StateEventPool(metaStateEvent, 5);
        MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
        for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
            initSingleStreamRuntime(runtime.getSingleStreamRuntimes().get(i), i, metaStateEvent, stateEventPool, lockWrapper, queryName);
        }
    }
}