Examples with MetaStreamEvent org.wso2.siddhi.core.event.stream.MetaStreamEvent used on opensource projects

Example 16 with MetaStreamEvent

use of org.wso2.siddhi.core.event.stream.MetaStreamEvent in project siddhi by wso2.

the class StoreQueryParser method constructStoreQueryRuntime.

private static StoreQueryRuntime constructStoreQueryRuntime(Window window, StoreQuery storeQuery, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, String queryName, int metaPosition, Expression onCondition, MetaStreamEvent metaStreamEvent, List<VariableExpressionExecutor> variableExpressionExecutors) {
    metaStreamEvent.setEventType(EventType.WINDOW);
    initMetaStreamEvent(metaStreamEvent, window.getWindowDefinition());
    MatchingMetaInfoHolder metaStreamInfoHolder = generateMatchingMetaInfoHolder(metaStreamEvent, window.getWindowDefinition());
    CompiledCondition compiledCondition = window.compileCondition(onCondition, generateMatchingMetaInfoHolder(metaStreamEvent, window.getWindowDefinition()), siddhiAppContext, variableExpressionExecutors, tableMap, queryName);
    FindStoreQueryRuntime findStoreQueryRuntime = new FindStoreQueryRuntime(window, compiledCondition, queryName, metaStreamEvent);
    populateFindStoreQueryRuntime(findStoreQueryRuntime, metaStreamInfoHolder, storeQuery.getSelector(), variableExpressionExecutors, siddhiAppContext, tableMap, queryName, metaPosition);
    return findStoreQueryRuntime;
}

Example 17 with MetaStreamEvent

use of org.wso2.siddhi.core.event.stream.MetaStreamEvent in project siddhi by wso2.

the class StoreQueryParser method constructStoreQueryRuntime.

private static StoreQueryRuntime constructStoreQueryRuntime(AggregationRuntime aggregation, StoreQuery storeQuery, SiddhiAppContext siddhiAppContext, Map<String, Table> tableMap, String queryName, Within within, Expression per, Expression onCondition, MetaStreamEvent metaStreamEvent, List<VariableExpressionExecutor> variableExpressionExecutors) {
    int metaPosition;
    metaStreamEvent.setEventType(EventType.AGGREGATE);
    initMetaStreamEvent(metaStreamEvent, aggregation.getAggregationDefinition());
    MatchingMetaInfoHolder metaStreamInfoHolder = generateMatchingMetaInfoHolder(metaStreamEvent, aggregation.getAggregationDefinition());
    CompiledCondition compiledCondition = aggregation.compileExpression(onCondition, within, per, metaStreamInfoHolder, variableExpressionExecutors, tableMap, queryName, siddhiAppContext);
    metaStreamInfoHolder = ((IncrementalAggregateCompileCondition) compiledCondition).getAlteredMatchingMetaInfoHolder();
    FindStoreQueryRuntime findStoreQueryRuntime = new FindStoreQueryRuntime(aggregation, compiledCondition, queryName, metaStreamEvent);
    metaPosition = 1;
    populateFindStoreQueryRuntime(findStoreQueryRuntime, metaStreamInfoHolder, storeQuery.getSelector(), variableExpressionExecutors, siddhiAppContext, tableMap, queryName, metaPosition);
    ComplexEventPopulater complexEventPopulater = StreamEventPopulaterFactory.constructEventPopulator(metaStreamInfoHolder.getMetaStateEvent().getMetaStreamEvent(0), 0, ((IncrementalAggregateCompileCondition) compiledCondition).getAdditionalAttributes());
    ((IncrementalAggregateCompileCondition) compiledCondition).setComplexEventPopulater(complexEventPopulater);
    return findStoreQueryRuntime;
}

Example 18 with MetaStreamEvent

use of org.wso2.siddhi.core.event.stream.MetaStreamEvent in project siddhi by wso2.

the class QueryParserHelper method initStreamRuntime.

public static void initStreamRuntime(StreamRuntime runtime, MetaComplexEvent metaComplexEvent, LockWrapper lockWrapper, String queryName) {
    if (runtime instanceof SingleStreamRuntime) {
        initSingleStreamRuntime((SingleStreamRuntime) runtime, 0, metaComplexEvent, null, lockWrapper, queryName);
    } else {
        MetaStateEvent metaStateEvent = (MetaStateEvent) metaComplexEvent;
        StateEventPool stateEventPool = new StateEventPool(metaStateEvent, 5);
        MetaStreamEvent[] metaStreamEvents = metaStateEvent.getMetaStreamEvents();
        for (int i = 0, metaStreamEventsLength = metaStreamEvents.length; i < metaStreamEventsLength; i++) {
            initSingleStreamRuntime(runtime.getSingleStreamRuntimes().get(i), i, metaStateEvent, stateEventPool, lockWrapper, queryName);
        }
    }
}

Example 19 with MetaStreamEvent

use of org.wso2.siddhi.core.event.stream.MetaStreamEvent in project siddhi by wso2.

the class Window method init.

/**
 * Initialize the WindowEvent table by creating {@link WindowProcessor} to handle the events.
 *
 * @param tableMap       map of {@link Table}s
 * @param eventWindowMap map of EventWindows
 * @param queryName      name of the query window belongs to.
 */
public void init(Map<String, Table> tableMap, Map<String, Window> eventWindowMap, String queryName) {
    if (this.windowProcessor != null) {
        return;
    }
    // Create and initialize MetaStreamEvent
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addInputDefinition(windowDefinition);
    metaStreamEvent.setEventType(MetaStreamEvent.EventType.WINDOW);
    metaStreamEvent.initializeAfterWindowData();
    for (Attribute attribute : windowDefinition.getAttributeList()) {
        metaStreamEvent.addOutputData(attribute);
    }
    this.streamEventPool = new StreamEventPool(metaStreamEvent, 5);
    StreamEventCloner streamEventCloner = new StreamEventCloner(metaStreamEvent, this.streamEventPool);
    OutputStream.OutputEventType outputEventType = windowDefinition.getOutputEventType();
    boolean outputExpectsExpiredEvents = outputEventType != OutputStream.OutputEventType.CURRENT_EVENTS;
    WindowProcessor internalWindowProcessor = (WindowProcessor) SingleInputStreamParser.generateProcessor(windowDefinition.getWindow(), metaStreamEvent, new ArrayList<VariableExpressionExecutor>(), this.siddhiAppContext, tableMap, false, outputExpectsExpiredEvents, queryName);
    internalWindowProcessor.setStreamEventCloner(streamEventCloner);
    internalWindowProcessor.constructStreamEventPopulater(metaStreamEvent, 0);
    EntryValveProcessor entryValveProcessor = null;
    if (internalWindowProcessor instanceof SchedulingProcessor) {
        entryValveProcessor = new EntryValveProcessor(this.siddhiAppContext);
        Scheduler scheduler = SchedulerParser.parse(this.siddhiAppContext.getScheduledExecutorService(), entryValveProcessor, this.siddhiAppContext);
        scheduler.init(this.lockWrapper, queryName);
        scheduler.setStreamEventPool(streamEventPool);
        ((SchedulingProcessor) internalWindowProcessor).setScheduler(scheduler);
    }
    if (entryValveProcessor != null) {
        entryValveProcessor.setToLast(internalWindowProcessor);
        this.windowProcessor = entryValveProcessor;
    } else {
        this.windowProcessor = internalWindowProcessor;
    }
    // StreamPublishProcessor must be the last in chain so that it can publish the events to StreamJunction
    this.windowProcessor.setToLast(new StreamPublishProcessor(outputEventType));
    this.internalWindowProcessor = internalWindowProcessor;
}

Example 20 with MetaStreamEvent

use of org.wso2.siddhi.core.event.stream.MetaStreamEvent in project siddhi by wso2.

the class EventTestCase method testQueryParser.

@Test
public void testQueryParser() {
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.FLOAT).attribute("volume", Attribute.Type.INT);
    StreamDefinition outStreamDefinition = StreamDefinition.id("outputStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.FLOAT);
    Query query = new Query();
    query.annotation(Annotation.annotation("info").element("name", "query1"));
    query.from(InputStream.stream("cseEventStream").filter(Expression.compare(Expression.variable("volume"), Compare.Operator.NOT_EQUAL, Expression.value(50))));
    query.select(Selector.selector().select("symbol", Expression.variable("symbol")).select("price", Expression.variable("price")));
    query.insertInto("outputStream");
    Map<String, AbstractDefinition> tableDefinitionMap = new HashMap<>();
    Map<String, AbstractDefinition> windowDefinitionMap = new HashMap<>();
    Map<String, AbstractDefinition> aggregationDefinitionMap = new HashMap<>();
    Map<String, Table> tableMap = new HashMap<String, Table>();
    Map<String, Window> eventWindowMap = new HashMap<String, Window>();
    Map<String, AggregationRuntime> aggregationMap = new HashMap<String, AggregationRuntime>();
    Map<String, List<Source>> eventSourceMap = new HashMap<String, List<Source>>();
    Map<String, List<Sink>> eventSinkMap = new HashMap<String, List<Sink>>();
    Map<String, AbstractDefinition> streamDefinitionMap = new HashMap<String, AbstractDefinition>();
    LockSynchronizer lockSynchronizer = new LockSynchronizer();
    streamDefinitionMap.put("cseEventStream", streamDefinition);
    streamDefinitionMap.put("outputStream", outStreamDefinition);
    SiddhiContext siddhicontext = new SiddhiContext();
    SiddhiAppContext context = new SiddhiAppContext();
    context.setSiddhiContext(siddhicontext);
    context.setElementIdGenerator(new ElementIdGenerator(context.getName()));
    context.setSnapshotService(new SnapshotService(context));
    QueryRuntime runtime = QueryParser.parse(query, context, streamDefinitionMap, tableDefinitionMap, windowDefinitionMap, aggregationDefinitionMap, tableMap, aggregationMap, eventWindowMap, lockSynchronizer, "1");
    AssertJUnit.assertNotNull(runtime);
    AssertJUnit.assertTrue(runtime.getStreamRuntime() instanceof SingleStreamRuntime);
    AssertJUnit.assertNotNull(runtime.getSelector());
    AssertJUnit.assertTrue(runtime.getMetaComplexEvent() instanceof MetaStreamEvent);
}