Examples with ComplexEventChunk io.siddhi.core.event.ComplexEventChunk used on opensource projects

Example 51 with ComplexEventChunk

use of io.siddhi.core.event.ComplexEventChunk in project siddhi by wso2.

the class IndexOperator method update.

private void update(IndexedEventHolder storeEvents, InMemoryCompiledUpdateSet compiledUpdateSet, StateEvent overwritingOrAddingEvent, ComplexEventChunk<StreamEvent> foundEventChunk) {
    // for cases when indexed attribute is also updated but that not changed
    // to reduce number of passes needed to update the events
    boolean doDeleteUpdate = false;
    boolean fail = false;
    for (Map.Entry<Integer, ExpressionExecutor> entry : compiledUpdateSet.getExpressionExecutorMap().entrySet()) {
        if (doDeleteUpdate || fail) {
            break;
        }
        if (storeEvents.isAttributeIndexed(entry.getKey())) {
            // Todo how much check we need to do before falling back to Delete and then Update
            foundEventChunk.reset();
            Set<Object> keys = null;
            PrimaryKeyReferenceHolder[] primaryKeyReferenceHolders = storeEvents.getPrimaryKeyReferenceHolders();
            if (primaryKeyReferenceHolders != null && primaryKeyReferenceHolders.length == 1 && entry.getKey() == primaryKeyReferenceHolders[0].getPrimaryKeyPosition()) {
                keys = new HashSet<>(storeEvents.getAllPrimaryKeyValues());
            }
            while (foundEventChunk.hasNext()) {
                StreamEvent streamEvent = foundEventChunk.next();
                Object updatingData = entry.getValue().execute(overwritingOrAddingEvent);
                Object storeEventData = streamEvent.getOutputData()[entry.getKey()];
                if (updatingData != null && storeEventData != null && !updatingData.equals(storeEventData)) {
                    doDeleteUpdate = true;
                    if (keys == null || keys.size() == 0) {
                        break;
                    } else {
                        keys.remove(storeEventData);
                        if (!keys.add(updatingData)) {
                            log.error("Update failed for event :" + overwritingOrAddingEvent + ", as there is " + "already an event stored with primary key '" + updatingData + "' at '" + queryName + "'");
                            fail = true;
                            break;
                        }
                    }
                }
            }
        }
    }
    foundEventChunk.reset();
    if (!fail) {
        if (doDeleteUpdate) {
            collectionExecutor.delete(overwritingOrAddingEvent, storeEvents);
            ComplexEventChunk<StreamEvent> toUpdateEventChunk = new ComplexEventChunk<>();
            while (foundEventChunk.hasNext()) {
                StreamEvent streamEvent = foundEventChunk.next();
                foundEventChunk.remove();
                // to make the chained state back to normal
                streamEvent.setNext(null);
                for (Map.Entry<Integer, ExpressionExecutor> entry : compiledUpdateSet.getExpressionExecutorMap().entrySet()) {
                    streamEvent.setOutputData(entry.getValue().execute(overwritingOrAddingEvent), entry.getKey());
                }
                toUpdateEventChunk.add(streamEvent);
            }
            storeEvents.add(toUpdateEventChunk);
        } else {
            StreamEvent first = foundEventChunk.getFirst();
            while (first != null) {
                StreamEvent streamEvent = first;
                handleCachePolicyAttributeUpdate(streamEvent);
                for (Map.Entry<Integer, ExpressionExecutor> entry : compiledUpdateSet.getExpressionExecutorMap().entrySet()) {
                    streamEvent.setOutputData(entry.getValue().execute(overwritingOrAddingEvent), entry.getKey());
                }
                StreamEvent next = first.getNext();
                // to make the chained state back to normal
                first.setNext(null);
                first = next;
            }
        }
    }
}

Example 52 with ComplexEventChunk

use of io.siddhi.core.event.ComplexEventChunk in project siddhi by wso2.

the class CompareCollectionExecutor method find.

public StreamEvent find(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder, StreamEventCloner storeEventCloner) {
    ComplexEventChunk<StreamEvent> returnEventChunk = new ComplexEventChunk<StreamEvent>();
    Collection<StreamEvent> storeEventSet = findEvents(matchingEvent, indexedEventHolder);
    if (storeEventSet == null) {
        // triggering sequential scan
        Collection<StreamEvent> storeEvents = indexedEventHolder.getAllEvents();
        for (StreamEvent storeEvent : storeEvents) {
            matchingEvent.setEvent(storeEventIndex, storeEvent);
            if ((Boolean) expressionExecutor.execute(matchingEvent)) {
                if (storeEventCloner != null) {
                    returnEventChunk.add(storeEventCloner.copyStreamEvent(storeEvent));
                } else {
                    returnEventChunk.add(storeEvent);
                }
            }
            matchingEvent.setEvent(storeEventIndex, null);
        }
        return returnEventChunk.getFirst();
    } else {
        for (StreamEvent storeEvent : storeEventSet) {
            if (cacheTable != null) {
                cacheTable.updateCachePolicyAttribute(storeEvent);
            }
            if (storeEventCloner != null) {
                returnEventChunk.add(storeEventCloner.copyStreamEvent(storeEvent));
            } else {
                returnEventChunk.add(storeEvent);
            }
        }
        return returnEventChunk.getFirst();
    }
}

Example 53 with ComplexEventChunk

use of io.siddhi.core.event.ComplexEventChunk in project siddhi by wso2.

the class ExhaustiveCollectionExecutor method find.

public StreamEvent find(StateEvent matchingEvent, IndexedEventHolder indexedEventHolder, StreamEventCloner storeEventCloner) {
    ComplexEventChunk<StreamEvent> returnEventChunk = new ComplexEventChunk<StreamEvent>();
    Collection<StreamEvent> storeEvents = indexedEventHolder.getAllEvents();
    for (StreamEvent storeEvent : storeEvents) {
        matchingEvent.setEvent(storeEventIndex, storeEvent);
        if ((Boolean) expressionExecutor.execute(matchingEvent)) {
            if (storeEventCloner != null) {
                returnEventChunk.add(storeEventCloner.copyStreamEvent(storeEvent));
            } else {
                returnEventChunk.add(storeEvent);
            }
        }
        matchingEvent.setEvent(storeEventIndex, null);
    }
    return returnEventChunk.getFirst();
}

Example 54 with ComplexEventChunk

use of io.siddhi.core.event.ComplexEventChunk in project siddhi by wso2.

the class OnDemandQueryRuntimeUtil method executeSelector.

public static Event[] executeSelector(StateEventFactory stateEventFactory, StreamEvent streamEvent, StreamEvent storeEvents, int storeEventIndex, QuerySelector selector) {
    ComplexEventChunk outputComplexEventChunk = executeSelectorAndReturnChunk(stateEventFactory, streamEvent, storeEvents, storeEventIndex, selector);
    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;
    }
}

Example 55 with ComplexEventChunk

use of io.siddhi.core.event.ComplexEventChunk in project siddhi by wso2.

the class OnDemandQueryRuntimeUtil method executeSelectorAndReturnChunk.

private static ComplexEventChunk executeSelectorAndReturnChunk(StateEventFactory stateEventFactory, StreamEvent streamEvent, StreamEvent storeEvents, int storeEventIndex, QuerySelector selector) {
    ComplexEventChunk<StateEvent> complexEventChunk = new ComplexEventChunk<>();
    while (storeEvents != null) {
        StreamEvent storeEvent = storeEvents;
        storeEvents = storeEvents.getNext();
        storeEvent.setNext(null);
        StateEvent joinEvent = stateEventFactory.newInstance();
        if (streamEvent == null) {
            joinEvent.addEvent(storeEventIndex, storeEvent);
        } else {
            joinEvent.addEvent(0, streamEvent);
            joinEvent.addEvent(1, storeEvent);
        }
        complexEventChunk.add(joinEvent);
    }
    return selector.execute(complexEventChunk);
}