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

Example 26 with StreamEvent

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

the class CountPostStateProcessor method process.

protected void process(StateEvent stateEvent, ComplexEventChunk complexEventChunk) {
    StreamEvent streamEvent = stateEvent.getStreamEvent(stateId);
    int streamEvents = 1;
    while (streamEvent.getNext() != null) {
        streamEvents++;
        streamEvent = streamEvent.getNext();
    }
    ((CountPreStateProcessor) thisStatePreProcessor).successCondition();
    stateEvent.setTimestamp(streamEvent.getTimestamp());
    if (streamEvents >= minCount) {
        if (thisStatePreProcessor.stateType == StateInputStream.Type.SEQUENCE) {
            if (nextStatePerProcessor != null) {
                nextStatePerProcessor.addState(stateEvent);
            }
            if (streamEvents != maxCount) {
                thisStatePreProcessor.addState(stateEvent);
            }
        } else if (streamEvents == minCount) {
            processMinCountReached(stateEvent, complexEventChunk);
        }
        if (streamEvents == maxCount) {
            thisStatePreProcessor.stateChanged();
        }
    }
}

Example 27 with StreamEvent

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

the class CountPreStateProcessor method processAndReturn.

@Override
public ComplexEventChunk<StateEvent> processAndReturn(ComplexEventChunk complexEventChunk) {
    ComplexEventChunk<StateEvent> returnEventChunk = new ComplexEventChunk<StateEvent>(false);
    complexEventChunk.reset();
    // Sure only one will be sent
    StreamEvent streamEvent = (StreamEvent) complexEventChunk.next();
    for (Iterator<StateEvent> iterator = pendingStateEventList.iterator(); iterator.hasNext(); ) {
        StateEvent stateEvent = iterator.next();
        if (removeIfNextStateProcessed(stateEvent, iterator, stateId + 1)) {
            continue;
        }
        if (removeIfNextStateProcessed(stateEvent, iterator, stateId + 2)) {
            continue;
        }
        stateEvent.addEvent(stateId, streamEventCloner.copyStreamEvent(streamEvent));
        successCondition = false;
        process(stateEvent);
        if (this.thisLastProcessor.isEventReturned()) {
            this.thisLastProcessor.clearProcessedEvent();
            returnEventChunk.add(stateEvent);
        }
        if (stateChanged) {
            iterator.remove();
        }
        if (!successCondition) {
            switch(stateType) {
                case PATTERN:
                    stateEvent.removeLastEvent(stateId);
                    break;
                case SEQUENCE:
                    stateEvent.removeLastEvent(stateId);
                    iterator.remove();
                    break;
            }
        }
    }
    return returnEventChunk;
}

Example 28 with StreamEvent

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

the class LogicalPreStateProcessor method processAndReturn.

@Override
public ComplexEventChunk<StateEvent> processAndReturn(ComplexEventChunk complexEventChunk) {
    ComplexEventChunk<StateEvent> returnEventChunk = new ComplexEventChunk<StateEvent>(false);
    complexEventChunk.reset();
    // Sure only one will be sent
    StreamEvent streamEvent = (StreamEvent) complexEventChunk.next();
    for (Iterator<StateEvent> iterator = pendingStateEventList.iterator(); iterator.hasNext(); ) {
        StateEvent stateEvent = iterator.next();
        if (withinStates.size() > 0) {
            if (isExpired(stateEvent, streamEvent.getTimestamp())) {
                iterator.remove();
                continue;
            }
        }
        if (logicalType == LogicalStateElement.Type.OR && stateEvent.getStreamEvent(partnerStatePreProcessor.getStateId()) != null) {
            iterator.remove();
            continue;
        }
        stateEvent.setEvent(stateId, streamEventCloner.copyStreamEvent(streamEvent));
        process(stateEvent);
        if (this.thisLastProcessor.isEventReturned()) {
            this.thisLastProcessor.clearProcessedEvent();
            returnEventChunk.add(stateEvent);
        }
        if (stateChanged) {
            iterator.remove();
        } else {
            switch(stateType) {
                case PATTERN:
                    stateEvent.setEvent(stateId, null);
                    break;
                case SEQUENCE:
                    stateEvent.setEvent(stateId, null);
                    iterator.remove();
                    break;
            }
        }
    }
    return returnEventChunk;
}

Example 29 with StreamEvent

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

the class FindStoreQueryRuntime method execute.

@Override
public Event[] execute() {
    try {
        StateEvent stateEvent = new StateEvent(1, 0);
        StreamEvent streamEvents = null;
        switch(eventType) {
            case TABLE:
                streamEvents = table.find(stateEvent, compiledCondition);
                break;
            case WINDOW:
                streamEvents = window.find(stateEvent, compiledCondition);
                break;
            case AGGREGATE:
                stateEvent = new StateEvent(2, 0);
                StreamEvent streamEvent = new StreamEvent(0, 2, 0);
                stateEvent.addEvent(0, streamEvent);
                streamEvents = aggregation.find(stateEvent, compiledCondition);
                break;
            case DEFAULT:
                break;
        }
        if (streamEvents == null) {
            return null;
        } else {
            if (selector != null) {
                return executeSelector(streamEvents, eventType);
            } else {
                List<Event> events = new ArrayList<Event>();
                while (streamEvents != null) {
                    events.add(new Event(streamEvents.getTimestamp(), streamEvents.getOutputData()));
                    streamEvents = streamEvents.getNext();
                }
                return events.toArray(new Event[0]);
            }
        }
    } catch (Throwable t) {
        throw new StoreQueryRuntimeException("Error executing '" + queryName + "', " + t.getMessage(), t);
    }
}

Example 30 with StreamEvent

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

the class FindStoreQueryRuntime method executeSelector.

private Event[] executeSelector(StreamEvent streamEvents, MetaStreamEvent.EventType eventType) {
    ComplexEventChunk<StateEvent> complexEventChunk = new ComplexEventChunk<>(true);
    while (streamEvents != null) {
        StreamEvent streamEvent = streamEvents;
        streamEvents = streamEvents.getNext();
        streamEvent.setNext(null);
        StateEvent stateEvent = stateEventPool.borrowEvent();
        if (eventType == MetaStreamEvent.EventType.AGGREGATE) {
            stateEvent.addEvent(1, streamEvent);
        } else {
            stateEvent.addEvent(0, streamEvent);
        }
        complexEventChunk.add(stateEvent);
    }
    ComplexEventChunk outputComplexEventChunk = selector.execute(complexEventChunk);
    if (outputComplexEventChunk != null) {
        List<Event> events = new ArrayList<>();
        outputComplexEventChunk.reset();
        while (outputComplexEventChunk.hasNext()) {
            ComplexEvent complexEvent = outputComplexEventChunk.next();
            events.add(new Event(complexEvent.getTimestamp(), complexEvent.getOutputData()));
        }
        return events.toArray(new Event[0]);
    } else {
        return null;
    }
}