Examples with StreamEventCloner org.wso2.siddhi.core.event.stream.StreamEventCloner used on opensource projects

Example 6 with StreamEventCloner

use of org.wso2.siddhi.core.event.stream.StreamEventCloner in project siddhi by wso2.

the class TimeBatchWindowProcessor method process.

@Override
protected void process(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner) {
    synchronized (this) {
        if (nextEmitTime == -1) {
            long currentTime = siddhiAppContext.getTimestampGenerator().currentTime();
            if (isStartTimeEnabled) {
                nextEmitTime = getNextEmitTime(currentTime);
            } else {
                nextEmitTime = siddhiAppContext.getTimestampGenerator().currentTime() + timeInMilliSeconds;
            }
            scheduler.notifyAt(nextEmitTime);
        }
        long currentTime = siddhiAppContext.getTimestampGenerator().currentTime();
        boolean sendEvents;
        if (currentTime >= nextEmitTime) {
            nextEmitTime += timeInMilliSeconds;
            scheduler.notifyAt(nextEmitTime);
            sendEvents = true;
        } else {
            sendEvents = false;
        }
        while (streamEventChunk.hasNext()) {
            StreamEvent streamEvent = streamEventChunk.next();
            if (streamEvent.getType() != ComplexEvent.Type.CURRENT) {
                continue;
            }
            StreamEvent clonedStreamEvent = streamEventCloner.copyStreamEvent(streamEvent);
            currentEventChunk.add(clonedStreamEvent);
        }
        streamEventChunk.clear();
        if (sendEvents) {
            if (outputExpectsExpiredEvents) {
                if (expiredEventChunk.getFirst() != null) {
                    while (expiredEventChunk.hasNext()) {
                        StreamEvent expiredEvent = expiredEventChunk.next();
                        expiredEvent.setTimestamp(currentTime);
                    }
                    streamEventChunk.add(expiredEventChunk.getFirst());
                }
            }
            if (expiredEventChunk != null) {
                expiredEventChunk.clear();
            }
            if (currentEventChunk.getFirst() != null) {
                // add reset event in front of current events
                streamEventChunk.add(resetEvent);
                resetEvent = null;
                if (expiredEventChunk != null) {
                    currentEventChunk.reset();
                    while (currentEventChunk.hasNext()) {
                        StreamEvent currentEvent = currentEventChunk.next();
                        StreamEvent toExpireEvent = streamEventCloner.copyStreamEvent(currentEvent);
                        toExpireEvent.setType(StreamEvent.Type.EXPIRED);
                        expiredEventChunk.add(toExpireEvent);
                    }
                }
                resetEvent = streamEventCloner.copyStreamEvent(currentEventChunk.getFirst());
                resetEvent.setType(ComplexEvent.Type.RESET);
                streamEventChunk.add(currentEventChunk.getFirst());
            }
            currentEventChunk.clear();
        }
    }
    if (streamEventChunk.getFirst() != null) {
        streamEventChunk.setBatch(true);
        nextProcessor.process(streamEventChunk);
        streamEventChunk.setBatch(false);
    }
}

Example 7 with StreamEventCloner

use of org.wso2.siddhi.core.event.stream.StreamEventCloner in project siddhi by wso2.

the class TimeWindowProcessor method process.

@Override
protected void process(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner) {
    synchronized (this) {
        while (streamEventChunk.hasNext()) {
            StreamEvent streamEvent = streamEventChunk.next();
            long currentTime = siddhiAppContext.getTimestampGenerator().currentTime();
            expiredEventChunk.reset();
            while (expiredEventChunk.hasNext()) {
                StreamEvent expiredEvent = expiredEventChunk.next();
                long timeDiff = expiredEvent.getTimestamp() - currentTime + timeInMilliSeconds;
                if (timeDiff <= 0) {
                    expiredEventChunk.remove();
                    expiredEvent.setTimestamp(currentTime);
                    streamEventChunk.insertBeforeCurrent(expiredEvent);
                } else {
                    break;
                }
            }
            if (streamEvent.getType() == StreamEvent.Type.CURRENT) {
                StreamEvent clonedEvent = streamEventCloner.copyStreamEvent(streamEvent);
                clonedEvent.setType(StreamEvent.Type.EXPIRED);
                this.expiredEventChunk.add(clonedEvent);
                if (lastTimestamp < clonedEvent.getTimestamp()) {
                    scheduler.notifyAt(clonedEvent.getTimestamp() + timeInMilliSeconds);
                    lastTimestamp = clonedEvent.getTimestamp();
                }
            } else {
                streamEventChunk.remove();
            }
        }
        expiredEventChunk.reset();
    }
    nextProcessor.process(streamEventChunk);
}

Example 8 with StreamEventCloner

use of org.wso2.siddhi.core.event.stream.StreamEventCloner in project siddhi by wso2.

the class AnyAndCollectionExecutor method find.

public StreamEvent find(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder, StreamEventCloner storeEventCloner) {
    Collection<StreamEvent> resultEventSet = findEvents(matchingEvent, indexedEventHolder);
    ComplexEventChunk<StreamEvent> returnEventChunk = new ComplexEventChunk<StreamEvent>(false);
    if (resultEventSet != null) {
        for (StreamEvent resultEvent : resultEventSet) {
            if (storeEventCloner != null) {
                returnEventChunk.add(storeEventCloner.copyStreamEvent(resultEvent));
            } else {
                returnEventChunk.add(resultEvent);
            }
        }
        return returnEventChunk.getFirst();
    } else {
        return exhaustiveCollectionExecutor.find(matchingEvent, indexedEventHolder, storeEventCloner);
    }
}

Example 9 with StreamEventCloner

use of org.wso2.siddhi.core.event.stream.StreamEventCloner in project siddhi by wso2.

the class ExhaustiveCollectionExecutor method find.

public StreamEvent find(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder, StreamEventCloner storeEventCloner) {
    ComplexEventChunk<StreamEvent> returnEventChunk = new ComplexEventChunk<StreamEvent>(false);
    Collection<StreamEvent> storeEvents = indexedEventHolder.getAllEvents();
    for (StreamEvent storeEvent : storeEvents) {
        matchingEvent.setEvent(storeEventIndex, storeEvent);
        if ((Boolean) expressionExecutor.execute(matchingEvent)) {
            if (storeEventCloner != null) {
                returnEventChunk.add(storeEventCloner.copyStreamEvent(storeEvent));
            } else {
                returnEventChunk.add(storeEvent);
            }
        }
        matchingEvent.setEvent(storeEventIndex, null);
    }
    return returnEventChunk.getFirst();
}

Example 10 with StreamEventCloner

use of org.wso2.siddhi.core.event.stream.StreamEventCloner 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 queryName      name of the query window belongs to.
 */
public void init(Map<String, Table> tableMap, Map<String, Window> eventWindowMap, String queryName) {
    if (this.windowProcessor != null) {
        return;
    }
    // Create and initialize MetaStreamEvent
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addInputDefinition(windowDefinition);
    metaStreamEvent.setEventType(MetaStreamEvent.EventType.WINDOW);
    metaStreamEvent.initializeAfterWindowData();
    for (Attribute attribute : windowDefinition.getAttributeList()) {
        metaStreamEvent.addOutputData(attribute);
    }
    this.streamEventPool = new StreamEventPool(metaStreamEvent, 5);
    StreamEventCloner streamEventCloner = new StreamEventCloner(metaStreamEvent, this.streamEventPool);
    OutputStream.OutputEventType outputEventType = windowDefinition.getOutputEventType();
    boolean outputExpectsExpiredEvents = outputEventType != OutputStream.OutputEventType.CURRENT_EVENTS;
    WindowProcessor internalWindowProcessor = (WindowProcessor) SingleInputStreamParser.generateProcessor(windowDefinition.getWindow(), metaStreamEvent, new ArrayList<VariableExpressionExecutor>(), this.siddhiAppContext, tableMap, false, outputExpectsExpiredEvents, queryName);
    internalWindowProcessor.setStreamEventCloner(streamEventCloner);
    internalWindowProcessor.constructStreamEventPopulater(metaStreamEvent, 0);
    EntryValveProcessor entryValveProcessor = null;
    if (internalWindowProcessor instanceof SchedulingProcessor) {
        entryValveProcessor = new EntryValveProcessor(this.siddhiAppContext);
        Scheduler scheduler = SchedulerParser.parse(this.siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, this.siddhiAppContext);
        scheduler.init(this.lockWrapper, queryName);
        scheduler.setStreamEventPool(streamEventPool);
        ((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;
}