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

Example 6 with StreamEvent

use of io.siddhi.core.event.stream.StreamEvent in project siddhi by wso2.

the class ConversionStreamEventChunk method convertAndAssign.

// @Override
// public void convertAndAssignFirst(StreamEvent streamEvent) {
// StreamEvent newEvent = streamEventFactory.borrowEvent();
// eventConverter.convertComplexEvent(streamEvent, newEvent);
// first = newEvent;
// last = first;
// }
public void convertAndAssign(Event[] events) {
    StreamEvent firstEvent = streamEventFactory.newInstance();
    streamEventConverter.convertEvent(events[0], firstEvent);
    StreamEvent currentEvent = firstEvent;
    for (int i = 1, eventsLength = events.length; i < eventsLength; i++) {
        StreamEvent nextEvent = streamEventFactory.newInstance();
        streamEventConverter.convertEvent(events[i], nextEvent);
        currentEvent.setNext(nextEvent);
        currentEvent = nextEvent;
    }
    first = firstEvent;
    last = currentEvent;
}

Example 7 with StreamEvent

use of io.siddhi.core.event.stream.StreamEvent in project siddhi by wso2.

the class StateEvent method getStreamEvent.

public StreamEvent getStreamEvent(int[] position) {
    StreamEvent streamEvent = streamEvents[position[STREAM_EVENT_CHAIN_INDEX]];
    if (streamEvent == null) {
        return null;
    }
    int streamEventIndex = position[STREAM_EVENT_INDEX_IN_CHAIN];
    if (streamEventIndex >= 0) {
        for (int i = 1; i <= position[STREAM_EVENT_INDEX_IN_CHAIN]; i++) {
            streamEvent = streamEvent.getNext();
            if (streamEvent == null) {
                return null;
            }
        }
    } else if (streamEventIndex == CURRENT) {
        while (streamEvent.getNext() != null) {
            streamEvent = streamEvent.getNext();
        }
    } else if (streamEventIndex == LAST) {
        if (streamEvent.getNext() == null) {
            return null;
        }
        while (streamEvent.getNext().getNext() != null) {
            streamEvent = streamEvent.getNext();
        }
    } else {
        List<StreamEvent> stateEventList = new ArrayList<StreamEvent>();
        while (streamEvent != null) {
            stateEventList.add(streamEvent);
            streamEvent = streamEvent.getNext();
        }
        int index = stateEventList.size() + streamEventIndex;
        if (index < 0) {
            return null;
        } else {
            streamEvent = stateEventList.get(index);
        }
    }
    return streamEvent;
}

Example 8 with StreamEvent

use of io.siddhi.core.event.stream.StreamEvent in project siddhi by wso2.

the class SnapshotableStreamEventQueue method poll.

public StreamEvent poll() {
    reset();
    if (first != null) {
        StreamEvent firstEvent = first;
        first = first.getNext();
        firstEvent.setNext(null);
        if (!isFullSnapshot()) {
            if (isOperationLogEnabled) {
                operationChangeLog.add(new Operation(Operator.REMOVE));
            }
            operationChangeLogSize++;
        } else {
            operationChangeLog.clear();
            operationChangeLogSize = 0;
            forceFullSnapshot = true;
        }
        return firstEvent;
    } else {
        return null;
    }
}

Example 9 with StreamEvent

use of io.siddhi.core.event.stream.StreamEvent in project siddhi by wso2.

the class SnapshotableStreamEventQueue method overwrite.

public void overwrite(StreamEvent streamEvent) {
    if (!isFullSnapshot()) {
        if (isOperationLogEnabled) {
            operationChangeLog.add(new Operation(Operator.OVERWRITE, new Object[] { eventIndex, eventClonerHolder.getStreamEventCloner().copyStreamEvent(streamEvent) }));
        }
        operationChangeLogSize++;
    } else {
        operationChangeLog.clear();
        operationChangeLogSize = 0;
        forceFullSnapshot = true;
    }
    if (previousToLastReturned != null) {
        previousToLastReturned.setNext(streamEvent);
    } else {
        first = streamEvent;
    }
    StreamEvent next = lastReturned.getNext();
    if (next != null) {
        streamEvent.setNext(next);
    } else {
        last = streamEvent;
    }
    lastReturned = streamEvent;
}

Example 10 with StreamEvent

use of io.siddhi.core.event.stream.StreamEvent in project siddhi by wso2.

the class BatchingWindowProcessor method processEventChunk.

@Override
protected void processEventChunk(ComplexEventChunk<StreamEvent> streamEventChunk, Processor nextProcessor, StreamEventCloner streamEventCloner, ComplexEventPopulater complexEventPopulater, S state) {
    streamEventChunk.reset();
    while (streamEventChunk.hasNext()) {
        StreamEvent streamEvent = streamEventChunk.next();
        streamEvent.setBeforeWindowData(null);
    }
    streamEventChunk.reset();
    process(streamEventChunk, nextProcessor, streamEventCloner, state);
}