/// <summary>
/// This method removes (expires) objects from the window and schedules a new callback for the
/// time when the next oldest message would expire from the window.
/// </summary>
public void Expire()
{
long current = _agentInstanceContext.StatementContext.SchedulingService.Time;
long expireBeforeTimestamp = current - _timeDeltaComputation.DeltaSubtract(current) + 1;
// Remove from the timeWindow any events that have an older or timestamp then the given timestamp
// The window : from X to (X - timeDeltaComputation + 1)
var expired = _timeWindow.ExpireEvents(expireBeforeTimestamp);
// If there are child views, fireStatementStopped Update method
if (HasViews)
{
if ((expired != null) && (expired.IsNotEmpty()))
{
EventBean[] oldEvents = expired.ToArray();
if (_viewUpdatedCollection != null)
{
_viewUpdatedCollection.Update(null, oldEvents);
}
Instrument.With(
i => i.QViewIndicate(this, _timeWindowViewFactory.ViewName, null, oldEvents),
i => i.AViewIndicate(),
() => UpdateChildren(null, oldEvents));
}
}
ScheduleExpiryCallback();
}
/// <summary>
/// Returns the number of milliseconds.
/// </summary>
/// <param name="fromTime">from-time</param>
/// <param name="agentInstanceContext">context</param>
/// <returns>msec</returns>
public long GetScheduleBackwardDelta(long fromTime, AgentInstanceContext agentInstanceContext)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().QRegIntervalValue(_timePeriodExpr);
}
if (_timeDeltaComputation == null)
{
_timeDeltaComputation = _timePeriodExpr.ConstEvaluator(new ExprEvaluatorContextStatement(agentInstanceContext.StatementContext, false));
}
long result = _timeDeltaComputation.DeltaSubtract(fromTime);
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().ARegIntervalValue(result);
}
return(result);
}
/// <summary>
/// This method removes (expires) objects from the window and schedules a new callback for the
/// time when the next oldest message would expire from the window.
/// </summary>
protected void Expire()
{
long currentTime = _agentInstanceContext.StatementContext.SchedulingService.Time;
long expireBeforeTimestamp = currentTime - _timeDeltaComputation.DeltaSubtract(currentTime) + 1;
_isCallbackScheduled = false;
IList <EventBean> releaseEvents = null;
long?oldestKey;
while (true)
{
if (_sortedEvents.IsEmpty())
{
oldestKey = null;
break;
}
oldestKey = (long)_sortedEvents.Keys.First();
if (oldestKey >= expireBeforeTimestamp)
{
break;
}
var released = _sortedEvents.Delete(oldestKey);
if (released != null)
{
if (released is IList <EventBean> )
{
var releasedEventList = (IList <EventBean>)released;
if (releaseEvents == null)
{
releaseEvents = releasedEventList;
}
else
{
releaseEvents.AddAll(releasedEventList);
}
_eventCount -= releasedEventList.Count;
InternalHandleExpired(oldestKey, releasedEventList);
}
else
{
var releasedEvent = (EventBean)released;
if (releaseEvents == null)
{
releaseEvents = new List <EventBean>(4);
}
releaseEvents.Add(releasedEvent);
_eventCount--;
InternalHandleExpired(oldestKey, releasedEvent);
}
}
}
if (_optionalSortedRandomAccess != null)
{
_optionalSortedRandomAccess.Refresh(_sortedEvents, _eventCount, _eventCount);
}
// If there are child views, do the Update method
if (HasViews)
{
if ((releaseEvents != null) && (releaseEvents.IsNotEmpty()))
{
EventBean[] oldEvents = releaseEvents.ToArray();
Instrument.With(
i => i.QViewIndicate(this, _viewFactory.ViewName, null, oldEvents),
i => i.AViewIndicate(),
() => UpdateChildren(null, oldEvents));
}
}
// If we still have events in the window, schedule new callback
if (oldestKey == null)
{
return;
}
// Next callback
long callbackWait = oldestKey.Value - expireBeforeTimestamp + 1;
_agentInstanceContext.StatementContext.SchedulingService.Add(callbackWait, _handle, _scheduleSlot);
_isCallbackScheduled = true;
}
public override void Update(EventBean[] newData, EventBean[] oldData)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get()
.QViewProcessIRStream(this, _externallyTimedWindowViewFactory.ViewName, newData, oldData);
}
long timestamp = -1;
// add data points to the window
// we don't care about removed data from a prior view
if (newData != null)
{
for (int i = 0; i < newData.Length; i++)
{
timestamp = GetLongValue(newData[i]);
_timeWindow.Add(timestamp, newData[i]);
}
}
// Remove from the window any events that have an older timestamp then the last event's timestamp
ArrayDeque <EventBean> expired = null;
if (timestamp != -1)
{
expired =
_timeWindow.ExpireEvents(timestamp - _timeDeltaComputation.DeltaSubtract(timestamp) + 1);
}
EventBean[] oldDataUpdate = null;
if ((expired != null) && (!expired.IsEmpty()))
{
oldDataUpdate = expired.ToArray();
}
if ((oldData != null) && (AgentInstanceViewFactoryContext.IsRemoveStream))
{
foreach (EventBean anOldData in oldData)
{
_timeWindow.Remove(anOldData);
}
if (oldDataUpdate == null)
{
oldDataUpdate = oldData;
}
else
{
oldDataUpdate = CollectionUtil.AddArrayWithSetSemantics(oldData, oldDataUpdate);
}
}
if (_viewUpdatedCollection != null)
{
_viewUpdatedCollection.Update(newData, oldDataUpdate);
}
// If there are child views, fireStatementStopped update method
if (HasViews)
{
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().QViewIndicate(this, _externallyTimedWindowViewFactory.ViewName, newData, oldDataUpdate);
}
UpdateChildren(newData, oldDataUpdate);
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().AViewIndicate();
}
}
if (InstrumentationHelper.ENABLED)
{
InstrumentationHelper.Get().AViewProcessIRStream();
}
}
