Package com.espertech.esper.epl.spec

Examples of com.espertech.esper.epl.spec.NamedWindowConsumerStreamSpec

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    }

    private void preload(EPServicesContext services, EventTable eventIndex, Viewable subselectView, AgentInstanceContext agentInstanceContext) {
        if (subSelectHolder.getStreamSpecCompiled() instanceof NamedWindowConsumerStreamSpec)
        {
            NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) subSelectHolder.getStreamSpecCompiled();
            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);
            NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();

            // preload view for stream
            ArrayList<EventBean> eventsInWindow = new ArrayList<EventBean>();
            if (namedSpec.getFilterExpressions() != null) {
                EventBean[] events = new EventBean[1];
                for (EventBean event : consumerView) {
                    events[0] = event;
                    boolean add = true;
                    for (ExprNode filter : namedSpec.getFilterExpressions()) {
                        Object result = filter.getExprEvaluator().evaluate(events, true, agentInstanceContext);
                        if ((result == null) || (!((Boolean) result))) {
                            add = false;
                            break;
                        }
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            {
                StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(i);
                if (streamSpec instanceof NamedWindowConsumerStreamSpec)
                {
                    hasNamedWindow = true;
                    NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
                    NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
                    NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceContext);
                    if (processorInstance != null) {
                        NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();
                        NamedWindowConsumerView view = (NamedWindowConsumerView) viewableActivationResult[i].getViewable();

                        // preload view for stream unless the expiry policy is batch window
                        ArrayList<EventBean> eventsInWindow = new ArrayList<EventBean>();
                        if (!consumerView.getTailView().isParentBatchWindow())
                        {
                            for (EventBean aConsumerView : consumerView)
                            {
                                eventsInWindow.add(aConsumerView);
                            }
                        }
                        if (!eventsInWindow.isEmpty() && !isRecoveringResilient)
                        {
                            EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
                            view.update(newEvents, null);
                            if (joinPreloadMethod != null && !joinPreloadMethod.isPreloading() && agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable() != null) {
                                agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable().execute(agentInstanceContext);
                            }
                        }
                    }
                    else {
                        log.info("Named window access is out-of-context, the named window '" + namedSpec.getWindowName() + "' has been declared for a different context then the current statement, the aggregation and join state will not be initialized for statement expression [" + statementContext.getExpression() + "]");
                    }

                    // in a join, preload indexes, if any
                    if (joinPreloadMethod != null)
                    {
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        // resolve types and named window processors
        for (int i = 0; i < numStreams; i++)
        {
            final StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(i);
            NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;

            String streamName = namedSpec.getWindowName();
            if (namedSpec.getOptionalStreamName() != null)
            {
                streamName = namedSpec.getOptionalStreamName();
            }
            namesPerStream[i] = streamName;

            processors[i] = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
            if (processors[i] == null) {
                throw new ExprValidationException("A named window by name '" + namedSpec.getWindowName() + "' does not exist");
            }
            typesPerStream[i] = processors[i].getTailView().getEventType();
        }

        // compile filter to optimize access to named window
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    }

    private void preload(EPServicesContext services, EventTable eventIndex, Viewable subselectView, AgentInstanceContext agentInstanceContext) {
        if (subSelectHolder.getStreamSpecCompiled() instanceof NamedWindowConsumerStreamSpec)
        {
            NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) subSelectHolder.getStreamSpecCompiled();
            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];
                for (EventBean theEvent : consumerView) {
                    events[0] = theEvent;
                    boolean add = true;
                    for (ExprNode filter : namedSpec.getFilterExpressions()) {
                        Object result = filter.getExprEvaluator().evaluate(events, true, agentInstanceContext);
                        if ((result == null) || (!((Boolean) result))) {
                            add = false;
                            break;
                        }
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        return new EPPreparedQueryResult(resultSetProcessor.getResultEventType(), EventBeanUtility.flatten(events));
    }

    private Collection<EventBean> getStreamFilterSnapshot(int streamNum, ContextPartitionSelector contextPartitionSelector) {
        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) {
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        // resolve types and named window processors
        for (int i = 0; i < numStreams; i++)
        {
            final StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(i);
            NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;

            String streamName = namedSpec.getWindowName();
            if (namedSpec.getOptionalStreamName() != null)
            {
                streamName = namedSpec.getOptionalStreamName();
            }
            namesPerStream[i] = streamName;

            processors[i] = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
            if (processors[i] == null) {
                throw new ExprValidationException("A named window by name '" + namedSpec.getWindowName() + "' does not exist");
            }
            typesPerStream[i] = processors[i].getTailView().getEventType();
        }

        // compile filter to optimize access to named window
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                StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(i);

                if (streamSpec instanceof NamedWindowConsumerStreamSpec)
                {
                    hasNamedWindow = true;
                    NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
                    NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
                    NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceContext);
                    if (processorInstance != null) {
                        final NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();
                        final NamedWindowConsumerView view = (NamedWindowConsumerView) viewableActivationResult[i].getViewable();

                        // preload view for stream unless the expiry policy is batch window
                        Iterator<EventBean> consumerViewIterator = consumerView.iterator();
                        if (!consumerView.getTailView().isParentBatchWindow() && consumerViewIterator.hasNext() && !isRecoveringResilient)
                        {
                            preloadList.add(new StatementAgentInstancePreload() {
                                public void executePreload() {
                                    ArrayList<EventBean> eventsInWindow = new ArrayList<EventBean>();
                                    for (EventBean aConsumerView : consumerView) {
                                        eventsInWindow.add(aConsumerView);
                                    }

                                    EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
                                    view.update(newEvents, null);
                                    if (joinPreloadMethod != null && !joinPreloadMethod.isPreloading() && agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable() != null) {
                                        agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable().execute(agentInstanceContext);
                                    }
                                }
                            });
                        }
                    }
                    else {
                        log.info("Named window access is out-of-context, the named window '" + namedSpec.getWindowName() + "' has been declared for a different context then the current statement, the aggregation and join state will not be initialized for statement expression [" + statementContext.getExpression() + "]");
                    }

                    preloadList.add(new StatementAgentInstancePreload() {
                        public void executePreload() {
                            // in a join, preload indexes, if any
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        return new EPPreparedQueryResult(resultSetProcessor.getResultEventType(), EventBeanUtility.flatten(events));
    }

    private Collection<EventBean> getStreamFilterSnapshot(int streamNum, ContextPartitionSelector contextPartitionSelector) {
        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) {
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    }

    private void preload(EPServicesContext services, EventTable eventIndex, Viewable subselectView, AgentInstanceContext agentInstanceContext) {
        if (subSelectHolder.getStreamSpecCompiled() instanceof NamedWindowConsumerStreamSpec)
        {
            NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) subSelectHolder.getStreamSpecCompiled();
            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];
                for (EventBean event : consumerView) {
                    events[0] = event;
                    boolean add = true;
                    for (ExprNode filter : namedSpec.getFilterExpressions()) {
                        Object result = filter.getExprEvaluator().evaluate(events, true, agentInstanceContext);
                        if ((result == null) || (!((Boolean) result))) {
                            add = false;
                            break;
                        }
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                StreamSpecCompiled streamSpec = statementSpec.getStreamSpecs().get(i);

                if (streamSpec instanceof NamedWindowConsumerStreamSpec)
                {
                    hasNamedWindow = true;
                    NamedWindowConsumerStreamSpec namedSpec = (NamedWindowConsumerStreamSpec) streamSpec;
                    NamedWindowProcessor processor = services.getNamedWindowService().getProcessor(namedSpec.getWindowName());
                    NamedWindowProcessorInstance processorInstance = processor.getProcessorInstance(agentInstanceContext);
                    if (processorInstance != null) {
                        final NamedWindowTailViewInstance consumerView = processorInstance.getTailViewInstance();
                        final NamedWindowConsumerView view = (NamedWindowConsumerView) viewableActivationResult[i].getViewable();

                        // preload view for stream unless the expiry policy is batch window
                        Iterator<EventBean> consumerViewIterator = consumerView.iterator();
                        boolean preload = !consumerView.getTailView().isParentBatchWindow() && consumerViewIterator.hasNext();
                        if (preload) {
                            if (isRecoveringResilient && numStreams < 2) {
                                preload = false;
                            }
                        }
                        if (preload) {
                            final boolean yesRecoveringResilient = isRecoveringResilient;
                            preloadList.add(new StatementAgentInstancePreload() {
                                public void executePreload() {
                                    ArrayList<EventBean> eventsInWindow = new ArrayList<EventBean>();
                                    for (EventBean aConsumerView : consumerView) {
                                        eventsInWindow.add(aConsumerView);
                                    }

                                    EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
                                    view.update(newEvents, null);
                                    if (!yesRecoveringResilient && joinPreloadMethod != null && !joinPreloadMethod.isPreloading() && agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable() != null) {
                                        agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable().execute(agentInstanceContext);
                                    }
                                }
                            });
                        }
                    }
                    else {
                        log.info("Named window access is out-of-context, the named window '" + namedSpec.getWindowName() + "' has been declared for a different context then the current statement, the aggregation and join state will not be initialized for statement expression [" + statementContext.getExpression() + "]");
                    }

                    preloadList.add(new StatementAgentInstancePreload() {
                        public void executePreload() {
                            // in a join, preload indexes, if any
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Related Classes of com.espertech.esper.epl.spec.NamedWindowConsumerStreamSpec

  • com.espertech.esper.core.context.factory.StatementAgentInstanceFactorySelect
  • com.espertech.esper.core.context.subselect.SubSelectStrategyFactoryLocalViewPreloaded
  • com.espertech.esper.core.EPPreparedExecuteMethod
  • com.espertech.esper.core.start.EPPreparedExecuteMethod
  • com.espertech.esper.core.start.EPPreparedExecuteMethodQuery
  • com.espertech.esper.core.start.EPPreparedExecuteSingleStream
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