Examples with PartitionExecutor io.siddhi.core.partition.executor.PartitionExecutor used on opensource projects

Example 6 with PartitionExecutor

use of io.siddhi.core.partition.executor.PartitionExecutor in project siddhi by wso2.

the class PartitionStreamReceiver method receive.

@Override
public void receive(Event[] events) {
    if (partitionExecutors.size() == 0) {
        StreamEvent currentEvent;
        StreamEvent firstEvent = streamEventFactory.newInstance();
        streamEventConverter.convertEvent(events[0], firstEvent);
        currentEvent = firstEvent;
        for (int i = 1; i < events.length; i++) {
            StreamEvent nextEvent = streamEventFactory.newInstance();
            streamEventConverter.convertEvent(events[i], nextEvent);
            currentEvent.setNext(nextEvent);
            currentEvent = nextEvent;
        }
        send(firstEvent);
    } else {
        String key = null;
        StreamEvent firstEvent = null;
        StreamEvent currentEvent = null;
        for (Event event : events) {
            StreamEvent nextEvent = streamEventFactory.newInstance();
            streamEventConverter.convertEvent(event, nextEvent);
            for (PartitionExecutor partitionExecutor : partitionExecutors) {
                String currentKey = partitionExecutor.execute(nextEvent);
                if (currentKey != null) {
                    if (key == null) {
                        key = currentKey;
                        firstEvent = nextEvent;
                    } else if (!currentKey.equals(key)) {
                        send(key, firstEvent);
                        key = currentKey;
                        firstEvent = nextEvent;
                    } else {
                        currentEvent.setNext(nextEvent);
                    }
                    currentEvent = nextEvent;
                }
            }
        }
        send(key, firstEvent);
    }
}