Examples with StreamEvent org.ballerinalang.siddhi.core.event.stream.StreamEvent used on opensource projects

Example 1 with StreamEvent

use of org.ballerinalang.siddhi.core.event.stream.StreamEvent in project ballerina by ballerina-lang.

the class Window method add.

/**
 * Add the given ComplexEventChunk to the Window.
 *
 * @param complexEventChunk the event chunk to be added
 */
public void add(ComplexEventChunk complexEventChunk) {
    try {
        this.lockWrapper.lock();
        complexEventChunk.reset();
        // Convert all events to StreamEvent because StateEvents can be passed if directly received from a join
        ComplexEvent complexEvents = complexEventChunk.getFirst();
        StreamEvent firstEvent = streamEventPool.borrowEvent();
        eventConverter.convertComplexEvent(complexEvents, firstEvent);
        StreamEvent currentEvent = firstEvent;
        complexEvents = complexEvents.getNext();
        int numberOfEvents = 0;
        while (complexEvents != null) {
            numberOfEvents++;
            StreamEvent nextEvent = streamEventPool.borrowEvent();
            eventConverter.convertComplexEvent(complexEvents, nextEvent);
            currentEvent.setNext(nextEvent);
            currentEvent = nextEvent;
            complexEvents = complexEvents.getNext();
        }
        try {
            if (throughputTrackerInsert != null && siddhiAppContext.isStatsEnabled()) {
                throughputTrackerInsert.eventsIn(numberOfEvents);
                latencyTrackerInsert.markIn();
            }
            // Send to the window windowProcessor
            windowProcessor.process(new ComplexEventChunk<StreamEvent>(firstEvent, currentEvent, complexEventChunk.isBatch()));
        } finally {
            if (throughputTrackerInsert != null && siddhiAppContext.isStatsEnabled()) {
                latencyTrackerInsert.markOut();
            }
        }
    } finally {
        this.lockWrapper.unlock();
    }
}

Example 2 with StreamEvent

use of org.ballerinalang.siddhi.core.event.stream.StreamEvent in project ballerina by ballerina-lang.

the class CollectionOperator method find.

@Override
public StreamEvent find(StateEvent matchingEvent, Object storeEvents, StreamEventCloner storeEventCloner) {
    ComplexEventChunk<StreamEvent> returnEventChunk = new ComplexEventChunk<StreamEvent>(false);
    for (StreamEvent storeEvent : (Collection<StreamEvent>) storeEvents) {
        matchingEvent.setEvent(storeEventPosition, storeEvent);
        if ((Boolean) expressionExecutor.execute(matchingEvent)) {
            returnEventChunk.add(storeEventCloner.copyStreamEvent(storeEvent));
        }
        matchingEvent.setEvent(storeEventPosition, null);
    }
    return returnEventChunk.getFirst();
}

Example 3 with StreamEvent

use of org.ballerinalang.siddhi.core.event.stream.StreamEvent in project ballerina by ballerina-lang.

the class CollectionOperator method delete.

@Override
public void delete(ComplexEventChunk<StateEvent> deletingEventChunk, Object storeEvents) {
    if (((Collection<StreamEvent>) storeEvents).size() > 0) {
        deletingEventChunk.reset();
        while (deletingEventChunk.hasNext()) {
            StateEvent deletingEvent = deletingEventChunk.next();
            try {
                for (Iterator<StreamEvent> iterator = ((Collection<StreamEvent>) storeEvents).iterator(); iterator.hasNext(); ) {
                    StreamEvent storeEvent = iterator.next();
                    deletingEvent.setEvent(storeEventPosition, storeEvent);
                    if ((Boolean) expressionExecutor.execute(deletingEvent)) {
                        iterator.remove();
                    }
                }
            } finally {
                deletingEvent.setEvent(storeEventPosition, null);
            }
        }
    }
}

Example 4 with StreamEvent

use of org.ballerinalang.siddhi.core.event.stream.StreamEvent in project ballerina by ballerina-lang.

the class EventChunkOperator method delete.

@Override
public void delete(ComplexEventChunk<StateEvent> deletingEventChunk, Object storeEvents) {
    ComplexEventChunk<StreamEvent> storeEventChunk = (ComplexEventChunk<StreamEvent>) storeEvents;
    deletingEventChunk.reset();
    while (deletingEventChunk.hasNext()) {
        StateEvent deletingEvent = deletingEventChunk.next();
        try {
            storeEventChunk.reset();
            while (storeEventChunk.hasNext()) {
                StreamEvent storeEvent = storeEventChunk.next();
                deletingEvent.setEvent(storeEventPosition, storeEvent);
                if ((Boolean) expressionExecutor.execute(deletingEvent)) {
                    storeEventChunk.remove();
                }
            }
        } finally {
            deletingEvent.setEvent(storeEventPosition, null);
        }
    }
}

Example 5 with StreamEvent

use of org.ballerinalang.siddhi.core.event.stream.StreamEvent in project ballerina by ballerina-lang.

the class IndexOperator method tryUpdate.

@Override
public ComplexEventChunk<StreamEvent> tryUpdate(ComplexEventChunk<StateEvent> updatingOrAddingEventChunk, Object storeEvents, InMemoryCompiledUpdateSet compiledUpdateSet, AddingStreamEventExtractor addingStreamEventExtractor) {
    ComplexEventChunk<StreamEvent> failedEventChunk = new ComplexEventChunk<StreamEvent>(updatingOrAddingEventChunk.isBatch());
    updatingOrAddingEventChunk.reset();
    while (updatingOrAddingEventChunk.hasNext()) {
        StateEvent overwritingOrAddingEvent = updatingOrAddingEventChunk.next();
        StreamEvent streamEvents = collectionExecutor.find(overwritingOrAddingEvent, (IndexedEventHolder) storeEvents, null);
        ComplexEventChunk<StreamEvent> foundEventChunk = new ComplexEventChunk<>(false);
        foundEventChunk.add(streamEvents);
        if (foundEventChunk.getFirst() != null) {
            // for cases when indexed attribute is also updated but that not changed
            // to reduce number of passes needed to update the events
            update((IndexedEventHolder) storeEvents, compiledUpdateSet, overwritingOrAddingEvent, foundEventChunk);
        } else {
            failedEventChunk.add(addingStreamEventExtractor.getAddingStreamEvent(overwritingOrAddingEvent));
        }
    }
    return failedEventChunk;
}