Package com.espertech.esper.collection

Examples of com.espertech.esper.collection.OneEventCollection

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    // Called based on schedule evaluation registered when a variable changes (new data is null).
    // Called when new data arrives.
    private void expire(EventBean[] newData, EventBean[] oldData) {

        OneEventCollection expired = null;
        if (oldData != null) {
            expired = new OneEventCollection();
            expired.add(oldData);
        }
        int expiredCount = 0;
        if (!window.isEmpty()) {
            ExpressionWindowTimestampEventPair newest = window.getLast();

            while (true) {
                ExpressionWindowTimestampEventPair first = window.getFirst();

                boolean pass = checkEvent(first, newest, expiredCount);
                if (!pass) {
                    if (expired == null) {
                         expired = new OneEventCollection();
                    }
                    EventBean removed = window.removeFirst().getTheEvent();
                    expired.add(removed);
                    if (aggregationService != null) {
                        removedEvents[0] = removed;
                        aggregationService.applyLeave(removedEvents, null, agentInstanceContext);
                    }
                    expiredCount++;
                    internalHandleExpired(first);
                }
                else {
                    break;
                }

                if (window.isEmpty()) {
                    if (aggregationService != null) {
                        aggregationService.clearResults(agentInstanceContext);
                    }
                    break;
                }
            }
        }

        // Check for any events that get pushed out of the window
        EventBean[] expiredArr = null;
        if (expired != null)
        {
            expiredArr = expired.toArray();
        }

        // update event buffer for access by expressions, if any
        if (viewUpdatedCollection != null)
        {
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        setup(onTriggerDesc, triggeringEventType, triggeringStreamName, statementContext);
    }

    public void handleMatching(EventBean[] triggerEvents, EventBean[] matchingEvents)
    {
        OneEventCollection newData = new OneEventCollection();
        OneEventCollection oldData = null;
        EventBean[] eventsPerStream = new EventBean[2];

        if ((matchingEvents == null) || (matchingEvents.length == 0)){
            for (EventBean triggerEvent : triggerEvents) {
                eventsPerStream[1] = triggerEvent;
                for (NamedWindowOnMergeMatch action : unmatched) {
                    if (!action.isApplies(eventsPerStream, super.getExprEvaluatorContext())) {
                        continue;
                    }
                    action.apply(null, eventsPerStream, newData, oldData, super.getExprEvaluatorContext());
                    break;  // apply no other actions
                }
            }
        }
        else {

            // handle update/
            oldData = new OneEventCollection();

            for (EventBean triggerEvent : triggerEvents) {
                eventsPerStream[1] = triggerEvent;
                for (EventBean matchingEvent : matchingEvents) {
                    eventsPerStream[0] = matchingEvent;
                    for (NamedWindowOnMergeMatch action : matched) {
                        if (!action.isApplies(eventsPerStream, super.getExprEvaluatorContext())) {
                            continue;
                        }
                        action.apply(matchingEvent, eventsPerStream, newData, oldData, super.getExprEvaluatorContext());
                        break;  // apply no other actions
                    }
                }
            }
        }

        if (!newData.isEmpty() || (oldData != null && !oldData.isEmpty()))
        {
            if ((MetricReportingPath.isMetricsEnabled) && (createWindowStatementHandle.getMetricsHandle().isEnabled()) && !newData.isEmpty())
            {
                metricReportingService.accountTime(createWindowStatementHandle.getMetricsHandle(), 0, 0, newData.toArray().length);
            }

            // Events to delete are indicated via old data
            this.rootView.update(newData.isEmpty() ? null : newData.toArray(), (oldData == null || oldData.isEmpty()) ? null : oldData.toArray());

            // The on-delete listeners receive the events deleted, but only if there is interest
            if (statementResultService.isMakeNatural() || statementResultService.isMakeSynthetic()) {
                updateChildren(newData.isEmpty() ? null : newData.toArray(), (oldData == null || oldData.isEmpty()) ? null : oldData.toArray());
            }
        }

        // Keep the last delete records
        lastResult = matchingEvents;
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    public final void update(EventBean[] newData, EventBean[] oldData)
    {
        if (InstrumentationHelper.ENABLED) { InstrumentationHelper.get().qViewProcessIRStream(this, timeFirstViewFactory.getViewName(), newData, oldData);}

        OneEventCollection oldDataToPost = null;
        if (oldData != null)
        {
            for (EventBean anOldData : oldData)
            {
                boolean removed = events.remove(anOldData);
                if (removed)
                {
                    if (oldDataToPost == null)
                    {
                        oldDataToPost = new OneEventCollection();
                    }
                    oldDataToPost.add(anOldData);
                    internalHandleRemoved(anOldData);
                }
            }
        }

        // add data points to the timeWindow
        OneEventCollection newDataToPost = null;
        if ((!isClosed) && (newData != null))
        {
            for (EventBean aNewData : newData)
            {
                events.add(aNewData);
                if (newDataToPost == null)
                {
                    newDataToPost = new OneEventCollection();
                }
                newDataToPost.add(aNewData);
                internalHandleAdded(aNewData);
            }
        }

        // If there are child views, call update method
        if ((this.hasViews()) && ((newDataToPost != null) || (oldDataToPost != null)))
        {
            EventBean[] nd = (newDataToPost != null) ? newDataToPost.toArray() : null;
            EventBean[] od = (oldDataToPost != null) ? oldDataToPost.toArray() : null;
            if (InstrumentationHelper.ENABLED) { InstrumentationHelper.get().qViewIndicate(this, timeFirstViewFactory.getViewName(), nd, od);}
            updateChildren(nd, od);
            if (InstrumentationHelper.ENABLED) { InstrumentationHelper.get().aViewIndicate();}
        }
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    // Called based on schedule evaluation registered when a variable changes (new data is null).
    // Called when new data arrives.
    private void expire(EventBean[] newData, EventBean[] oldData) {

        OneEventCollection expired = null;
        if (oldData != null) {
            expired = new OneEventCollection();
            expired.add(oldData);
        }
        int expiredCount = 0;
        if (!window.isEmpty()) {
            TimestampEventPair newest = window.getLast();

            while (true) {
                TimestampEventPair first = window.getFirst();

                boolean pass = checkEvent(first, newest, expiredCount);
                if (!pass) {
                    if (expired == null) {
                         expired = new OneEventCollection();
                    }
                    expired.add(window.removeFirst().getEvent());
                    expiredCount++;
                }
                else {
                    break;
                }

                if (window.isEmpty()) {
                    break;
                }
            }
        }

        // Check for any events that get pushed out of the window
        EventBean[] expiredArr = null;
        if (expired != null)
        {
            expiredArr = expired.toArray();
        }

        // update event buffer for access by expressions, if any
        if (viewUpdatedCollection != null)
        {
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        if ((eventData == null) || (eventData.length == 0))
        {
            return null;
        }

        OneEventCollection filtered = null;
        for (EventBean event : eventData)
        {
            eventPerStream[0] = event;
            boolean pass = true;
            for (ExprEvaluator filter : filterList)
            {
                Boolean result = (Boolean) filter.evaluate(eventPerStream, isNewData, exprEvaluatorContext);
                if ((result != null) && (!result))
                {
                    pass = false;
                    break;
                }
            }

            if (pass)
            {
                if (filtered == null)
                {
                    filtered = new OneEventCollection();
                }
                filtered.add(event);
            }
        }

        if (filtered == null)
        {
            return null;
        }
        return filtered.toArray();
    }
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        return parent.getEventType();
    }

    public final void update(EventBean[] newData, EventBean[] oldData)
    {
        OneEventCollection removedEvents = new OneEventCollection();

        // Remove old data
        if (oldData != null)
        {
            for (int i = 0; i < oldData.length; i++)
            {
                Object uniqueKey = getUniqueValues(oldData[i]);
                Object existingSortKey = uniqueKeySortKeys.get(uniqueKey);

                if (existingSortKey == null) {
                    continue;
                }

                EventBean event = removeFromSortedEvents(existingSortKey, uniqueKey);
                if (event != null) {
                    numberOfEvents--;
                    uniqueKeySortKeys.remove(uniqueKey);
                    removedEvents.add(event);
                }
            }
        }

        // Add new data
        if (newData != null)
        {
            for (int i = 0; i < newData.length; i++)
            {
                Object uniqueKey = getUniqueValues(newData[i]);
                Object newSortKey = getSortValues(newData[i]);
                Object existingSortKey = uniqueKeySortKeys.get(uniqueKey);

                // not currently found: its a new entry
                if (existingSortKey == null) {
                    compareAndAddOrPassthru(newData[i], uniqueKey, newSortKey, removedEvents);
                }
                // same unique-key event found already, remove and add again
                else {

                    // key did not change, perform in-place substitute of event
                    if (existingSortKey.equals(newSortKey)) {
                        EventBean replaced = inplaceReplaceSortedEvents(existingSortKey, uniqueKey, newData[i]);
                        if (replaced != null) {
                            removedEvents.add(replaced);
                        }
                    }
                    else {
                        EventBean removed = removeFromSortedEvents(existingSortKey, uniqueKey);
                        if (removed != null) {
                            numberOfEvents--;
                            removedEvents.add(removed);
                        }
                        compareAndAddOrPassthru(newData[i], uniqueKey, newSortKey, removedEvents);
                    }
                }
            }
        }

        // Remove data that sorts to the bottom of the window
        if (numberOfEvents > sortWindowSize)
        {
            while(numberOfEvents > sortWindowSize) {
                Object lastKey = sortedEvents.lastKey();
                Object existing = sortedEvents.get(lastKey);
                if (existing instanceof List) {
                    List<EventBean> existingList = (List<EventBean>) existing;
                    while(numberOfEvents > sortWindowSize && !existingList.isEmpty()) {
                        EventBean newestEvent = existingList.remove(0);
                        Object uniqueKey = getUniqueValues(newestEvent);
                        uniqueKeySortKeys.remove(uniqueKey);
                        numberOfEvents--;
                        removedEvents.add(newestEvent);
                    }
                    if (existingList.isEmpty()) {
                        sortedEvents.remove(lastKey);
                    }
                }
                else {
                    EventBean lastSortedEvent = (EventBean) existing;
                    Object uniqueKey = getUniqueValues(lastSortedEvent);
                    uniqueKeySortKeys.remove(uniqueKey);
                    numberOfEvents--;
                    removedEvents.add(lastSortedEvent);
                    sortedEvents.remove(lastKey);
                }
            }
        }

        // If there are child views, fireStatementStopped update method
        if (optionalRankedRandomAccess != null)
        {
            optionalRankedRandomAccess.refresh(sortedEvents, numberOfEvents, sortWindowSize);
        }
        if (this.hasViews())
        {
            EventBean[] expiredArr = null;
            if (!removedEvents.isEmpty())
            {
                expiredArr = removedEvents.toArray();
            }

            updateChildren(newData, expiredArr);
        }
    }
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        return parent.getEventType();
    }

    public final void update(EventBean[] newData, EventBean[] oldData)
    {
        OneEventCollection postOldData = null;

        if (this.hasViews())
        {
            postOldData = new OneEventCollection();
        }

        if (newData != null)
        {
            for (int i = 0; i < newData.length; i++)
            {
                // Obtain unique value
                Object key = getUniqueKey(newData[i]);

                // If there are no child views, just update the own collection
                if (!this.hasViews())
                {
                    mostRecentEvents.put(key, newData[i]);
                    continue;
                }

                // Post the last value as old data
                EventBean lastValue = mostRecentEvents.get(key);
                if (lastValue != null)
                {
                    postOldData.add(lastValue);
                }

                // Override with recent event
                mostRecentEvents.put(key, newData[i]);
            }
        }

        if (oldData != null)
        {
            for (int i = 0; i < oldData.length; i++)
            {
                // Obtain unique value
                Object key = getUniqueKey(oldData[i]);

                // If the old event is the current unique event, remove and post as old data
                EventBean lastValue = mostRecentEvents.get(key);
                if (lastValue != oldData[i])
                {
                    continue;
                }

                postOldData.add(lastValue);
                mostRecentEvents.remove(key);
            }
        }


        // If there are child views, fireStatementStopped update method
        if (this.hasViews())
        {
            if (postOldData.isEmpty())
            {
                updateChildren(newData, null);
            }
            else
            {
                updateChildren(newData, postOldData.toArray());
            }
        }
    }
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        if ((eventData == null) || (eventData.length == 0))
        {
            return null;
        }

        OneEventCollection filtered = null;
        for (EventBean theEvent : eventData)
        {
            eventPerStream[0] = theEvent;
            boolean pass = true;
            for (ExprEvaluator filter : filterList)
            {
                Boolean result = (Boolean) filter.evaluate(eventPerStream, isNewData, exprEvaluatorContext);
                if ((result != null) && (!result))
                {
                    pass = false;
                    break;
                }
            }

            if (pass)
            {
                if (filtered == null)
                {
                    filtered = new OneEventCollection();
                }
                filtered.add(theEvent);
            }
        }

        if (filtered == null)
        {
            return null;
        }
        return filtered.toArray();
    }
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    // Called based on schedule evaluation registered when a variable changes (new data is null).
    // Called when new data arrives.
    private void expire(EventBean[] newData, EventBean[] oldData) {

        OneEventCollection expired = null;
        if (oldData != null) {
            expired = new OneEventCollection();
            expired.add(oldData);
        }
        int expiredCount = 0;
        if (!window.isEmpty()) {
            TimestampEventPair newest = window.getLast();

            while (true) {
                TimestampEventPair first = window.getFirst();

                boolean pass = checkEvent(first, newest, expiredCount);
                if (!pass) {
                    if (expired == null) {
                         expired = new OneEventCollection();
                    }
                    EventBean removed = window.removeFirst().getTheEvent();
                    expired.add(removed);
                    if (aggregationService != null) {
                        removedEvents[0] = removed;
                        aggregationService.applyLeave(removedEvents, null, agentInstanceContext);
                    }
                    expiredCount++;
                }
                else {
                    break;
                }

                if (window.isEmpty()) {
                    if (aggregationService != null) {
                        aggregationService.clearResults(agentInstanceContext);
                    }
                    break;
                }
            }
        }

        // Check for any events that get pushed out of the window
        EventBean[] expiredArr = null;
        if (expired != null)
        {
            expiredArr = expired.toArray();
        }

        // update event buffer for access by expressions, if any
        if (viewUpdatedCollection != null)
        {
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        return parent.getEventType();
    }

    public final void update(EventBean[] newData, EventBean[] oldData)
    {
        OneEventCollection removedEvents = null;

        // Remove old data
        if (oldData != null)
        {
            for (int i = 0; i < oldData.length; i++)
            {
                EventBean oldDataItem = oldData[i];
                Object sortValues = getSortValues(oldDataItem);
                boolean result = CollectionUtil.removeEventByKeyLazyListMap(sortValues, oldDataItem, sortedEvents);
                if (result)
                {
                    eventCount--;
                    if (removedEvents == null) {
                        removedEvents = new OneEventCollection();
                    }
                    removedEvents.add(oldDataItem);
                    internalHandleRemoved(sortValues, oldDataItem);
                }
            }
        }

        // Add new data
        if (newData != null)
        {
            for (int i = 0; i < newData.length; i++)
            {
                EventBean newDataItem = newData[i];
                Object sortValues = getSortValues(newDataItem);
                CollectionUtil.addEventByKeyLazyListMapFront(sortValues, newDataItem, sortedEvents);
                eventCount++;
                internalHandleAdd(sortValues, newDataItem);
            }
        }

        // Remove data that sorts to the bottom of the window
        if (eventCount > sortWindowSize)
        {
            int removeCount = eventCount - sortWindowSize;
            for (int i = 0; i < removeCount; i++)
            {
                // Remove the last element of the last key - sort order is key and then natural order of arrival
                Object lastKey = sortedEvents.lastKey();
                Object lastEntry = sortedEvents.get(lastKey);
                if (lastEntry instanceof List) {
                    List<EventBean> events = (List<EventBean>) lastEntry;
                    EventBean theEvent = events.remove(events.size() - 1);  // remove oldest event, newest events are first in list
                    eventCount--;
                    if (events.isEmpty()) {
                        sortedEvents.remove(lastKey);
                    }
                    if (removedEvents == null) {
                        removedEvents = new OneEventCollection();
                    }
                    removedEvents.add(theEvent);
                    internalHandleRemoved(lastKey, theEvent);
                }
                else {
                    EventBean theEvent = (EventBean) lastEntry;
                    eventCount--;
                    sortedEvents.remove(lastKey);
                    if (removedEvents == null) {
                        removedEvents = new OneEventCollection();
                    }
                    removedEvents.add(theEvent);
                    internalHandleRemoved(lastKey, theEvent);
                }
            }
        }

        // If there are child views, fireStatementStopped update method
        if (optionalSortedRandomAccess != null)
        {
            optionalSortedRandomAccess.refresh(sortedEvents, eventCount, sortWindowSize);
        }
        if (this.hasViews())
        {
            EventBean[] expiredArr = null;
            if (removedEvents != null)
            {
                expiredArr = removedEvents.toArray();
            }

            updateChildren(newData, expiredArr);
        }
    }
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  • com.espertech.esper.view.std.LastElementView
  • com.espertech.esper.view.std.UniqueByPropertyView
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