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

Example 46 with StreamEvent

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

the class IncrementalAggregationProcessor method process.

@Override
public void process(ComplexEventChunk complexEventChunk) {
    ComplexEventChunk<StreamEvent> streamEventChunk = new ComplexEventChunk<>();
    try {
        int noOfEvents = 0;
        if (latencyTrackerInsert != null && Level.BASIC.compareTo(siddhiAppContext.getRootMetricsLevel()) <= 0) {
            latencyTrackerInsert.markIn();
        }
        while (complexEventChunk.hasNext()) {
            ComplexEvent complexEvent = complexEventChunk.next();
            if (!isFirstEventArrived) {
                aggregationRuntime.initialiseExecutors(true);
                isFirstEventArrived = true;
            }
            StreamEvent newEvent = streamEventFactory.newInstance();
            for (int i = 0; i < incomingExpressionExecutors.size(); i++) {
                ExpressionExecutor expressionExecutor = incomingExpressionExecutors.get(i);
                Object outputData = expressionExecutor.execute(complexEvent);
                if (expressionExecutor instanceof IncrementalUnixTimeFunctionExecutor && outputData == null) {
                    throw new SiddhiAppRuntimeException("Cannot retrieve the timestamp of event");
                }
                newEvent.setOutputData(outputData, i);
            }
            streamEventChunk.add(newEvent);
            noOfEvents++;
        }
        aggregationRuntime.processEvents(streamEventChunk);
        if (throughputTrackerInsert != null && Level.BASIC.compareTo(siddhiAppContext.getRootMetricsLevel()) <= 0) {
            throughputTrackerInsert.eventsIn(noOfEvents);
        }
    } finally {
        if (latencyTrackerInsert != null && Level.BASIC.compareTo(siddhiAppContext.getRootMetricsLevel()) <= 0) {
            latencyTrackerInsert.markOut();
        }
    }
}

Example 47 with StreamEvent

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

the class IncrementalDataPurger method createStreamEvent.

/**
 * creating stream event method
 */
private StateEvent createStreamEvent(Object[] values, Long timestamp) {
    StreamEvent streamEvent = streamEventFactory.newInstance();
    streamEvent.setTimestamp(timestamp);
    streamEvent.setOutputData(values);
    StateEvent stateEvent = new StateEvent(2, 1);
    stateEvent.addEvent(0, streamEvent);
    return stateEvent;
}

Example 48 with StreamEvent

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

the class ErrorHandlerUtils method constructAddErrorRecordString.

public static String constructAddErrorRecordString(ComplexEventChunk<StreamEvent> eventChunk, boolean isObjectColumnPresent, TableDefinition tableDefinition, Exception e) {
    JsonObject payloadJson = new JsonObject();
    payloadJson.addProperty("isEditable", !(isObjectColumnPresent || e instanceof ConnectionUnavailableException));
    JsonArray attributes = new JsonArray();
    JsonArray records = new JsonArray();
    for (Attribute attribute : tableDefinition.getAttributeList()) {
        JsonObject attributeJson = new JsonObject();
        attributeJson.add("name", new JsonPrimitive(attribute.getName()));
        attributeJson.add("type", new JsonPrimitive(String.valueOf(attribute.getType())));
        attributes.add(attributeJson);
    }
    payloadJson.add("attributes", attributes);
    while (eventChunk.hasNext()) {
        StreamEvent streamEvent = eventChunk.next();
        JsonArray record = new JsonArray();
        for (Object item : streamEvent.getOutputData()) {
            if (item == null) {
                record.add(JsonNull.INSTANCE);
            } else {
                record.add(String.valueOf(item));
            }
        }
        records.add(record);
    }
    payloadJson.add("records", records);
    return payloadJson.toString();
}

Example 49 with StreamEvent

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

the class SnapshotableEventQueueOperator method delete.

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

Example 50 with StreamEvent

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

the class TestStoreContainingInMemoryTable method query.

@Override
protected RecordIterator<Object[]> query(Map<String, Object> parameterMap, CompiledCondition compiledCondition, CompiledSelection compiledSelection, Attribute[] outputAttributes) {
    StreamEvent outEvent = inMemoryTable.find(compiledCondition, findMatchingEvent);
    List<Object[]> objects = new LinkedList<>();
    CompiledSelectionWithCache compiledSelectionWithCache = null;
    if (outEvent != null) {
        compiledSelectionWithCache = (CompiledSelectionWithCache) compiledSelection;
        StateEventFactory stateEventFactory = new StateEventFactory(compiledSelectionWithCache.getMetaStateEvent());
        Event[] cacheResultsAfterSelection = executeSelector(stateEventFactory, null, outEvent, compiledSelectionWithCache.getStoreEventIndex(), compiledSelectionWithCache.getQuerySelector());
        if (compiledSelectionWithCache.getQuerySelector() != null & compiledSelectionWithCache.getQuerySelector().getAttributeProcessorList().size() != 0) {
            compiledSelectionWithCache.getQuerySelector().process(generateResetComplexEventChunk(outEvent.getOutputData().length, stateEventFactory));
        }
        if (cacheResultsAfterSelection != null) {
            for (Event event : cacheResultsAfterSelection) {
                objects.add(event.getData());
            }
        }
    }
    return new TestStoreWithCacheIterator(objects.iterator());
}