Package com.espertech.esper.epl.named

Examples of com.espertech.esper.epl.named.NamedWindowProcessorInstance

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            throw new EPException("Context for named window is '" + processor.getContextName() + "' and query specifies context '" + statementSpec.getOptionalContextName() + "'");
        }

        // handle non-specified context
        if (statementSpec.getOptionalContextName() == null) {
            NamedWindowProcessorInstance processorInstance = processor.getProcessorInstanceNoContext();
            if (processorInstance != null) {
                EventBean[] rows = executor.execute(processorInstance);
                if (rows.length > 0) {
                    dispatch();
                }
                return new EPPreparedQueryResult(processor.getNamedWindowType(), rows);
            }
        }

        // context partition runtime query
        Collection<Integer> agentInstanceIds = EPPreparedExecuteMethodHelper.getAgentInstanceIds(processor, optionalSingleSelector, services.getContextManagementService(), processor.getContextName());

        // collect events and agent instances
        if (agentInstanceIds.isEmpty()) {
            return new EPPreparedQueryResult(processor.getNamedWindowType(), CollectionUtil.EVENT_PER_STREAM_EMPTY);
        }

        if (agentInstanceIds.size() == 1) {
            int agentInstanceId = agentInstanceIds.iterator().next();
            NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceId);
            EventBean[] rows = executor.execute(processorInstance);
            if (rows.length > 0) {
                dispatch();
            }
            return new EPPreparedQueryResult(processor.getNamedWindowType(), rows);
        }

        ArrayDeque<EventBean> allRows = new ArrayDeque<EventBean>();
        for (int agentInstanceId : agentInstanceIds) {
            NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceId);
            if (processorInstance != null) {
                EventBean[] rows = executor.execute(processorInstance);
                allRows.addAll(Arrays.asList(rows));
            }
        }
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                if (streamSpec instanceof NamedWindowConsumerStreamSpec)
                {
                    hasNamedWindow = true;
                    final NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
                    NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
                    NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceContext);
                    if (processorInstance != null) {
                        final NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();
                        namedWindowTailViews[i] = consumerView;
                        final NamedWindowConsumerView view = (NamedWindowConsumerView) viewableActivationResult[i].getViewable();

                        // determine preload/postload filter for index access
                        if (!namedSpec.getFilterExpressions().isEmpty()) {
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                        if (queryPlanLogging && queryPlanLog.isInfoEnabled()) {
                            queryPlanLog.info("prefering shared index");
                        }
                        boolean fullTableScan = HintEnum.SET_NOINDEX.getHint(annotations) != null;
                        SubordPropPlan joinedPropPlan = QueryPlanIndexBuilder.getJoinProps(filterExpr, outerEventTypes.length, subselectTypeService.getEventTypes());
                        NamedWindowProcessorInstance processorInstanceSubq = processor.getProcessorInstance(null);
                        SubordTableLookupStrategy namedWindowSubqueryLookup = processorInstanceSubq.getRootViewInstance().getAddSubqueryLookupStrategy(statementContext.getStatementName(), statementContext.getStatementId(), statementContext.getAnnotations(), outerEventTypesSelect, joinedPropPlan, fullTableScan, subqueryNum, indexHint);
                        stopCallbacks.add(new NamedWindowSubqueryStopCallback(processorInstanceSubq, namedWindowSubqueryLookup));
                        SubSelectStrategyFactory factory = new SubSelectStrategyFactoryNamedWinIndexShare(namedWindowSubqueryLookup, filterExprEval, aggregationServiceFactoryDesc);
                        SubSelectStrategyFactoryDesc factoryDesc = new SubSelectStrategyFactoryDesc(subSelectActivation, factory, aggregationServiceFactoryDesc, priorNodes, previousNodes);
                        collection.add(subselect, factoryDesc);
                        continue;
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                if (nwSpec.getOptPropertyEvaluator() != null && !streamSpec.getOptions().isUnidirectional()) {
                    throw new ExprValidationException("Failed to validate named window use in join, contained-event is only allowed for named windows when marked as unidirectional");
                }
                analysisResult.setNamedWindow(i);
                NamedWindowProcessor processor = namedWindowService.getProcessor(nwSpec.getWindowName());
                NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(defaultAgentInstanceContext);
                String[][] uniqueIndexes = processor.getUniqueIndexes(processorInstance);
                analysisResult.getUniqueKeys()[i] = uniqueIndexes;
                if (processor.isVirtualDataWindow()) {
                    analysisResult.getViewExternal()[i] = processorInstance.getRootViewInstance().getVirtualDataWindow();
                }
            }
        }
        if ((unidirectionalStreamNumber != -1) && (analysisResult.getHasChildViews()[unidirectionalStreamNumber]))
        {
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        if (numStreams > 1)
        {
            StreamJoinAnalysisResult streamJoinAnalysisResult = new StreamJoinAnalysisResult(numStreams);
            Arrays.fill(streamJoinAnalysisResult.getNamedWindow(), true);
            for (int i = 0; i < numStreams; i++) {
                final NamedWindowProcessorInstance processorInstance = processors[i].getProcessorInstance(agentInstanceContext);
                if (processors[i].isVirtualDataWindow()) {
                    streamJoinAnalysisResult.getViewExternal()[i] = new VirtualDWViewProviderForAgentInstance() {
                        public VirtualDWView getView(AgentInstanceContext agentInstanceContext) {
                            return processorInstance.getRootViewInstance().getVirtualDataWindow();
                        }
                    };
                }
                String[][] uniqueIndexes = processors[i].getUniqueIndexes(processorInstance);
                streamJoinAnalysisResult.getUniqueKeys()[i] = uniqueIndexes;
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        // context partition runtime query
        Collection<Integer> agentInstanceIds = EPPreparedExecuteMethodHelper.getAgentInstanceIds(processors[0], singleSelector, services.getContextManagementService(), statementSpec.getOptionalContextName());

        // collect events and agent instances
        for (int agentInstanceId : agentInstanceIds) {
            NamedWindowProcessorInstance processorInstance = processors[0].getProcessorInstance(agentInstanceId);
            if (processorInstance != null) {
                Collection<EventBean> coll = processorInstance.getTailViewInstance().snapshot(filters[0], statementSpec.getAnnotations());
                contextPartitionResults.add(new ContextPartitionResult(coll, processorInstance.getTailViewInstance().getAgentInstanceContext()));
            }
        }

        // process context partitions
        ArrayDeque<EventBean[]> events = new ArrayDeque<EventBean[]>();
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                    subselectAggregationPreprocessor = new SubselectAggregationPreprocessorFilteredGrouped(aggregationService, filterExprEval, groupByKeys);
                }
            }
        }

        NamedWindowProcessorInstance processorInstanceSubq = processor.getProcessorInstance(agentInstanceContext);
        SubordTableLookupStrategy namedWindowSubqueryLookup = processorInstanceSubq.getRootViewInstance()
                .getAddSubqueryLookupStrategy(agentInstanceContext.getStatementName(), agentInstanceContext.getStatementId(), agentInstanceContext.getStatementContext().getAnnotations(), outerEventTypesSelect, joinedPropPlan, fullTableScan, subqueryNum, optionalIndexHint);
        stopCallbackList.add(new NamedWindowSubqueryStopCallback(processorInstanceSubq, namedWindowSubqueryLookup));

        return new SubSelectStrategyRealization(namedWindowSubqueryLookup, subselectAggregationPreprocessor, aggregationService, Collections.<ExprPriorNode, ExprPriorEvalStrategy>emptyMap(), Collections.<ExprPreviousNode, ExprPreviousEvalStrategy>emptyMap(), null, null);
    }
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        final StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs()[streamNum];
        NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
        NamedWindowProcessor namedWindowProcessor = processors[streamNum];

        // handle the case of a single or matching agent instance
        NamedWindowProcessorInstance processorInstance = namedWindowProcessor.getProcessorInstance(agentInstanceContext);
        if (processorInstance != null) {
            return getStreamSnapshotInstance(streamNum, namedSpec, processorInstance);
        }

        // context partition runtime query
        Collection<Integer> contextPartitions = EPPreparedExecuteMethodHelper.getAgentInstanceIds(namedWindowProcessor, contextPartitionSelector, services.getContextManagementService(), namedWindowProcessor.getContextName());

        // collect events
        ArrayDeque<EventBean> events = new ArrayDeque<EventBean>();
        for (int agentInstanceId : contextPartitions) {
            processorInstance = namedWindowProcessor.getProcessorInstance(agentInstanceId);
            if (processorInstance != null) {
                Collection<EventBean> coll = processorInstance.getTailViewInstance().snapshot(filters[streamNum], statementSpec.getAnnotations());
                events.addAll(coll);
            }
        }
        return events;
    }
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        else
        {
            Viewable[] viewablePerStream = new Viewable[numStreams];
            for (int i = 0; i < numStreams; i++)
            {
                NamedWindowProcessorInstance instance = processors[i].getProcessorInstance(agentInstanceContext);
                if (instance == null) {
                    throw new UnsupportedOperationException("Joins against named windows that are under context are not supported");
                }
                viewablePerStream[i] = instance.getTailViewInstance();
            }

            JoinSetComposerDesc joinSetComposerDesc = joinSetComposerPrototype.create(viewablePerStream, true, agentInstanceContext);
            JoinSetComposer joinComposer = joinSetComposerDesc.getJoinSetComposer();
            JoinSetFilter joinFilter;
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            NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
            if (processor == null) {
                throw new RuntimeException("Failed to find named window by name '" + namedSpec.getWindowName() + "'");
            }

            NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceContext);
            if (processorInstance == null) {
                throw new EPException("Named window '" + namedSpec.getWindowName() + "' is associated to context '" + processor.getContextName() + "' that is not available for querying");
            }
            NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();

            // preload view for stream
            Collection<EventBean> eventsInWindow;
            if (namedSpec.getFilterExpressions() != null && !namedSpec.getFilterExpressions().isEmpty()) {
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Related Classes of com.espertech.esper.epl.named.NamedWindowProcessorInstance

  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactoryCreateWindow
  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactoryOnTrigger
  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactorySelect
  • com.espertech.esper.core.context.factory.StatementAgentInstancePostLoad
  • com.espertech.esper.core.context.subselect.SubSelectStrategyFactoryLocalViewPreloaded
  • com.espertech.esper.core.context.subselect.SubSelectStrategyFactoryNamedWinIndexShare
  • com.espertech.esper.core.start.EPPreparedExecuteMethod
  • com.espertech.esper.core.start.EPPreparedExecuteMethodQuery
  • com.espertech.esper.core.start.EPPreparedExecuteSingleStream
  • com.espertech.esper.core.start.EPStatementStartMethodCreateIndex
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