Package com.espertech.esper.epl.named

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

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                    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()) {
                            namedWindowFilters[streamNum] = namedSpec.getFilterExpressions();
                            try {
                                StreamTypeServiceImpl types = new StreamTypeServiceImpl(consumerView.getEventType(), consumerView.getEventType().getName(), false, services.getEngineURI());
                                LinkedHashMap<String, Pair<EventType, String>> tagged = new LinkedHashMap<String, Pair<EventType, String>>();
                                namedWindowPostloadFilters[i] = FilterSpecCompiler.makeFilterSpec(types.getEventTypes()[0], types.getStreamNames()[0],
                                        namedSpec.getFilterExpressions(), null, tagged, tagged, types, null, statementContext, Collections.singleton(0));
                            }
                            catch (Exception ex) {
                                log.warn("Unexpected exception analyzing filter paths: " + ex.getMessage(), ex);
                            }
                        }

                        // 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;
                            final FilterSpecCompiled preloadFilterSpec = namedWindowPostloadFilters[i];
                            preloadList.add(new StatementAgentInstancePreload() {
                                public void executePreload() {
                                    Collection<EventBean> snapshot = consumerView.snapshotNoLock(preloadFilterSpec, statementContext.getAnnotations());
                                    List<EventBean> eventsInWindow = new ArrayList<EventBean>(snapshot.size());
                                    ExprNodeUtility.applyFilterExpressionsIterable(snapshot, namedSpec.getFilterExpressions(), agentInstanceContext, eventsInWindow);
                                    EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
                                    view.update(newEvents, null);
                                    if (!yesRecoveringResilient && joinPreloadMethod != null && !joinPreloadMethod.isPreloading() && agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable() != null) {
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            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()) {

                try {
                    StreamTypeServiceImpl types = new StreamTypeServiceImpl(consumerView.getEventType(), consumerView.getEventType().getName(), false, services.getEngineURI());
                    LinkedHashMap<String, Pair<EventType, String>> tagged = new LinkedHashMap<String, Pair<EventType, String>>();
                    FilterSpecCompiled filterSpecCompiled = FilterSpecCompiler.makeFilterSpec(types.getEventTypes()[0], types.getStreamNames()[0],
                            namedSpec.getFilterExpressions(), null, tagged, tagged, types, null, agentInstanceContext.getStatementContext(), Collections.singleton(0));
                    Collection<EventBean> snapshot = consumerView.snapshotNoLock(filterSpecCompiled, agentInstanceContext.getStatementContext().getAnnotations());
                    eventsInWindow = new ArrayList<EventBean>(snapshot.size());
                    ExprNodeUtility.applyFilterExpressionsIterable(snapshot, namedSpec.getFilterExpressions(), agentInstanceContext, eventsInWindow);
                }
                catch (Exception ex) {
                    log.warn("Unexpected exception analyzing filter paths: " + ex.getMessage(), ex);
                    eventsInWindow = new ArrayList<EventBean>();
                    ExprNodeUtility.applyFilterExpressionsIterable(consumerView, namedSpec.getFilterExpressions(), agentInstanceContext, eventsInWindow);
                }
            }
            else {
                eventsInWindow = new ArrayList<EventBean>();
                for(Iterator<EventBean> it = consumerView.iterator(); it.hasNext();) {
                    eventsInWindow.add(it.next());
                }
            }
            EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
            if (subselectView != null) {
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                    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()) {
                            namedWindowFilters[streamNum] = namedSpec.getFilterExpressions();
                            try {
                                StreamTypeServiceImpl types = new StreamTypeServiceImpl(consumerView.getEventType(), consumerView.getEventType().getName(), false, services.getEngineURI());
                                LinkedHashMap<String, Pair<EventType, String>> tagged = new LinkedHashMap<String, Pair<EventType, String>>();
                                namedWindowPostloadFilters[i] = FilterSpecCompiler.makeFilterSpec(types.getEventTypes()[0], types.getStreamNames()[0],
                                        namedSpec.getFilterExpressions(), null, tagged, tagged, types, null, statementContext, Collections.singleton(0));
                            }
                            catch (Exception ex) {
                                log.warn("Unexpected exception analyzing filter paths: " + ex.getMessage(), ex);
                            }
                        }

                        // 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;
                            final FilterSpecCompiled preloadFilterSpec = namedWindowPostloadFilters[i];
                            preloadList.add(new StatementAgentInstancePreload() {
                                public void executePreload() {
                                    Collection<EventBean> snapshot = consumerView.snapshot(preloadFilterSpec, statementContext.getAnnotations());
                                    List<EventBean> eventsInWindow = new ArrayList<EventBean>(snapshot.size());
                                    ExprNodeUtility.applyFilterExpressionsIterable(snapshot, namedSpec.getFilterExpressions(), agentInstanceContext, eventsInWindow);
                                    EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
                                    view.update(newEvents, null);
                                    if (!yesRecoveringResilient && joinPreloadMethod != null && !joinPreloadMethod.isPreloading() && agentInstanceContext.getEpStatementAgentInstanceHandle().getOptionalDispatchable() != null) {
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            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;
                        }
                    }
                    if (add) {
                        eventsInWindow.add(events[0]);
                    }
                }
            }
            else {
                for(Iterator<EventBean> it = consumerView.iterator(); it.hasNext();)
                {
                    eventsInWindow.add(it.next());
                }
            }
            EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
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                    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);
                            }
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                }
            };
            stopCallbacks.add(allInOneStopMethod);

            // Attach tail view
            NamedWindowTailViewInstance tailView = processorInstance.getTailViewInstance();
            finalView.addView(tailView);
            finalView = tailView;

            // obtain result set processor
            ResultSetProcessor resultSetProcessor = EPStatementStartMethodHelperAssignExpr.getAssignResultSetProcessor(agentInstanceContext, resultSetProcessorPrototype);
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            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;
                        }
                    }
                    if (add) {
                        eventsInWindow.add(events[0]);
                    }
                }
            }
            else {
                for(Iterator<EventBean> it = consumerView.iterator(); it.hasNext();)
                {
                    eventsInWindow.add(it.next());
                }
            }
            EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
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                    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) {
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            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;
                        }
                    }
                    if (add) {
                        eventsInWindow.add(events[0]);
                    }
                }
            }
            else {
                for(Iterator<EventBean> it = consumerView.iterator(); it.hasNext();)
                {
                    eventsInWindow.add(it.next());
                }
            }
            EventBean[] newEvents = eventsInWindow.toArray(new EventBean[eventsInWindow.size()]);
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                }
            };
            stopCallbacks.add(allInOneStopMethod);

            // Attach tail view
            NamedWindowTailViewInstance tailView = processorInstance.getTailViewInstance();
            finalView.addView(tailView);
            finalView = tailView;

            // obtain result set processor
            ResultSetProcessor resultSetProcessor = EPStatementStartMethodHelperAssignExpr.getAssignResultSetProcessor(agentInstanceContext, resultSetProcessorPrototype);
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