Examples with MetaStateEvent io.siddhi.core.event.state.MetaStateEvent used on opensource projects

Example 36 with MetaStateEvent

use of io.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class EventTestCase method testUpdateMetaEvent.

@Test
public void testUpdateMetaEvent() {
    StreamDefinition streamDefinition = StreamDefinition.id("cseEventStream").attribute("symbol", Attribute.Type.STRING).attribute("price", Attribute.Type.FLOAT).attribute("volume", Attribute.Type.INT);
    Attribute price = new Attribute("price", Attribute.Type.FLOAT);
    Attribute volume = new Attribute("volume", Attribute.Type.INT);
    Attribute symbol = new Attribute("symbol", Attribute.Type.STRING);
    MetaStreamEvent metaStreamEvent = new MetaStreamEvent();
    metaStreamEvent.addData(volume);
    metaStreamEvent.addData(price);
    metaStreamEvent.addData(symbol);
    metaStreamEvent.initializeOnAfterWindowData();
    metaStreamEvent.addData(price);
    metaStreamEvent.addOutputData(symbol);
    metaStreamEvent.addOutputData(null);
    MetaStateEvent metaStateEvent = new MetaStateEvent(1);
    metaStateEvent.addEvent(metaStreamEvent);
    VariableExpressionExecutor priceVariableExpressionExecutor = new VariableExpressionExecutor(new Attribute("price", Attribute.Type.FLOAT), 0, 0);
    VariableExpressionExecutor volumeVariableExpressionExecutor = new VariableExpressionExecutor(new Attribute("volume", Attribute.Type.INT), 0, 0);
    VariableExpressionExecutor symbolVariableExpressionExecutor = new VariableExpressionExecutor(new Attribute("symbol", Attribute.Type.STRING), 0, 0);
    QueryParserHelper.reduceMetaComplexEvent(metaStateEvent);
    QueryParserHelper.updateVariablePosition(metaStateEvent, Arrays.asList(priceVariableExpressionExecutor, volumeVariableExpressionExecutor, symbolVariableExpressionExecutor));
    AssertJUnit.assertEquals(1, metaStreamEvent.getBeforeWindowData().size());
    AssertJUnit.assertEquals(1, metaStreamEvent.getOnAfterWindowData().size());
    AssertJUnit.assertEquals(2, metaStreamEvent.getOutputData().size());
    AssertJUnit.assertArrayEquals(new int[] { 0, 0, 1, 0 }, priceVariableExpressionExecutor.getPosition());
    AssertJUnit.assertArrayEquals(new int[] { 0, 0, 0, 0 }, volumeVariableExpressionExecutor.getPosition());
    AssertJUnit.assertArrayEquals(new int[] { 0, 0, 2, 0 }, symbolVariableExpressionExecutor.getPosition());
}

Example 37 with MetaStateEvent

use of io.siddhi.core.event.state.MetaStateEvent in project siddhi by wso2.

the class TestStoreForCachePreLoading method compileSelection.

@Override
protected CompiledSelection compileSelection(List<SelectAttributeBuilder> selectAttributeBuilders, List<ExpressionBuilder> groupByExpressionBuilder, ExpressionBuilder havingExpressionBuilder, List<OrderByAttributeBuilder> orderByAttributeBuilders, Long limit, Long offset) {
    CompiledSelectionWithCache compiledSelectionWithCache;
    MetaStateEvent metaStateEvent = matchingMetaInfoHolderForTestOnDemandQuery.getMetaStateEvent().clone();
    ReturnStream returnStream = new ReturnStream(OutputStream.OutputEventType.CURRENT_EVENTS);
    int metaPosition = SiddhiConstants.UNKNOWN_STATE;
    List<VariableExpressionExecutor> variableExpressionExecutorsForQuerySelector = new ArrayList<>();
    if (metaStateEvent.getOutputDataAttributes().size() == 0) {
        for (Attribute outputAttribute : metaStateEvent.getMetaStreamEvents()[0].getOnAfterWindowData()) {
            metaStateEvent.getMetaStreamEvents()[0].addOutputData(outputAttribute);
        }
    }
    QuerySelector querySelector = SelectorParser.parse(selectorForTestOnDemandQuery, returnStream, metaStateEvent, tableMap, variableExpressionExecutorsForQuerySelector, metaPosition, ProcessingMode.BATCH, false, siddhiQueryContextForTestOnDemandQuery);
    QueryParserHelper.updateVariablePosition(metaStateEvent, variableExpressionExecutorsForQuerySelector);
    querySelector.setEventPopulator(StateEventPopulatorFactory.constructEventPopulator(metaStateEvent));
    compiledSelectionWithCache = new CompiledSelectionWithCache(null, querySelector, metaStateEvent, 0, null);
    return compiledSelectionWithCache;
}