Package com.espertech.esper.epl.named

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

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        if (numStreams > 1)
        {
            StreamJoinAnalysisResult streamJoinAnalysisResult = new StreamJoinAnalysisResult(numStreams);
            Arrays.fill(streamJoinAnalysisResult.getNamedWindow(), true);
            for (int i = 0; i < numStreams; i++) {
                NamedWindowProcessorInstance processorInstance = processors[i].getProcessorInstance(agentInstanceContext);
                if (processors[i].isVirtualDataWindow()) {
                    streamJoinAnalysisResult.getViewExternal()[i] = processorInstance.getRootViewInstance().getVirtualDataWindow();
                }
            }

            joinSetComposerPrototype = JoinSetComposerPrototypeFactory.makeComposerPrototype(null, null,
                    statementSpec.getOuterJoinDescList(), statementSpec.getFilterRootNode(), typesPerStream, namesPerStream,
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            agentInstanceIds = contextManager.getAgentInstanceIds(contextPartitionSelectors[0]);
        }

        // 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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        final StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(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;
        if (contextPartitionSelector == null || contextPartitionSelector instanceof ContextPartitionSelectorAll) {
            contextPartitions = namedWindowProcessor.getProcessorInstancesAll();
        }
        else {
            ContextManager contextManager = services.getContextManagementService().getContextManager(namedWindowProcessor.getContextName());
            contextPartitions = contextManager.getAgentInstanceIds(contextPartitionSelector);
        }

        // 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);
            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
            ArrayList<EventBean> eventsInWindow = new ArrayList<EventBean>();
            if (namedSpec.getFilterExpressions() != null) {
                EventBean[] events = new EventBean[1];
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            if (streamSpec instanceof NamedWindowConsumerStreamSpec)
            {
                NamedWindowConsumerStreamSpec nwSpec = (NamedWindowConsumerStreamSpec) streamSpec;
                analysisResult.setNamedWindow(i);
                NamedWindowProcessor processor = namedWindowService.getProcessor(nwSpec.getWindowName());
                NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(defaultAgentInstanceContext);
                if (processor.isVirtualDataWindow()) {
                    analysisResult.getViewExternal()[i] = processorInstance.getRootViewInstance().getVirtualDataWindow();
                }
            }
        }
        if ((unidirectionalStreamNumber != -1) && (analysisResult.getHasChildViews()[unidirectionalStreamNumber]))
        {
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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);
                final 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] = new VirtualDWViewProviderForAgentInstance() {
                        public VirtualDWView getView(AgentInstanceContext agentInstanceContext) {
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        final CreateIndexDesc spec = statementSpec.getCreateIndexDesc();
        final NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(spec.getWindowName());
        if (processor == null) {
            throw new ExprValidationException("A named window by name '" + spec.getWindowName() + "' does not exist");
        }
        final NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(getDefaultAgentInstanceContext());

        EPStatementStopMethod stopMethod;
        if (processor.isVirtualDataWindow()) {
            final VirtualDWView virtualDWView = processorInstance.getRootViewInstance().getVirtualDataWindow();
            virtualDWView.handleStartIndex(spec);
            stopMethod = new EPStatementStopMethod() {
                public void stop() {
                    virtualDWView.handleStopIndex(spec);
                }
            };
        }
        else {
            processorInstance.getRootViewInstance().addExplicitIndex(spec.getWindowName(), spec.getIndexName(), spec.getColumns());
            stopMethod = new EPStatementStopMethod() {
                public void stop()
                {
                    processorInstance.getRootViewInstance().removeExplicitIndex(spec.getIndexName());
                }
            };
        }

        Viewable viewable = new ViewableDefaultImpl(processor.getNamedWindowType());
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        if (numStreams > 1)
        {
            StreamJoinAnalysisResult streamJoinAnalysisResult = new StreamJoinAnalysisResult(numStreams);
            Arrays.fill(streamJoinAnalysisResult.getNamedWindow(), true);
            for (int i = 0; i < numStreams; i++) {
                NamedWindowProcessorInstance processorInstance = processors[i].getProcessorInstance(agentInstanceContext);
                if (processors[i].isVirtualDataWindow()) {
                    streamJoinAnalysisResult.getViewExternal()[i] = processorInstance.getRootViewInstance().getVirtualDataWindow();
                }
            }

            joinSetComposerPrototype = JoinSetComposerPrototypeFactory.makeComposerPrototype(null, null,
                    statementSpec.getOuterJoinDescList(), statementSpec.getFilterRootNode(), typesPerStream, namesPerStream,
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            agentInstanceIds = contextManager.getAgentInstanceIds(contextPartitionSelectors[0]);
        }

        // 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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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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