Examples with StreamHandler io.siddhi.core.util.event.handler.StreamHandler used on opensource projects

Example 1 with StreamHandler

use of io.siddhi.core.util.event.handler.StreamHandler in project siddhi by wso2.

the class StreamJunction method startProcessing.

/**
 * Create and start disruptor based on annotations given in the streamDefinition.
 */
public void startProcessing() {
    this.exceptionListener = siddhiAppContext.getRuntimeExceptionListener();
    if (!receivers.isEmpty() && async) {
        for (Constructor constructor : Disruptor.class.getConstructors()) {
            if (constructor.getParameterTypes().length == 5) {
                // If new disruptor classes available
                ProducerType producerType = ProducerType.MULTI;
                disruptor = new Disruptor<EventExchangeHolder>(new EventExchangeHolderFactory(streamDefinition.getAttributeList().size()), bufferSize, executorService, producerType, new BlockingWaitStrategy());
                disruptor.handleExceptionsWith(siddhiAppContext.getDisruptorExceptionHandler());
                break;
            }
        }
        if (disruptor == null) {
            disruptor = new Disruptor<EventExchangeHolder>(new EventExchangeHolderFactory(streamDefinition.getAttributeList().size()), bufferSize, executorService);
            disruptor.handleExceptionsWith(siddhiAppContext.getDisruptorExceptionHandler());
        }
        if (workers > 0) {
            for (int i = 0; i < workers; i++) {
                disruptor.handleEventsWith(new StreamHandler(receivers, batchSize, streamDefinition.getId(), siddhiAppContext.getName(), faultStreamJunction, onErrorAction, exceptionListener));
            }
        } else {
            disruptor.handleEventsWith(new StreamHandler(receivers, batchSize, streamDefinition.getId(), siddhiAppContext.getName(), faultStreamJunction, onErrorAction, exceptionListener));
        }
        ringBuffer = disruptor.start();
    } else {
        for (Receiver receiver : receivers) {
            if (receiver instanceof StreamCallback) {
                ((StreamCallback) receiver).startProcessing();
            }
        }
    }
}