public long ComputeMilliseconds(MatchedEventMap beginState, PatternAgentInstanceContext context)
{
if (_parameter is ExprTimePeriod)
{
ExprTimePeriod timePeriod = (ExprTimePeriod)_parameter;
return(timePeriod.NonconstEvaluator().DeltaMillisecondsUseEngineTime(
_convertor.Convert(beginState), context.AgentInstanceContext));
}
else
{
var result = _parameter.ExprEvaluator.Evaluate(new EvaluateParams(_convertor.Convert(beginState), true, context.AgentInstanceContext));
if (result == null)
{
throw new EPException("Null value returned for guard expression");
}
if (result.IsFloatingPointNumber())
{
return((long)Math.Round(1000d * result.AsDouble()));
}
else
{
return(1000 * result.AsLong());
}
}
}
public override OutputProcessViewBase MakeView(
ResultSetProcessor resultSetProcessor,
AgentInstanceContext agentInstanceContext)
{
bool isAfterConditionSatisfied = true;
long?afterConditionTime = null;
if (AfterConditionNumberOfEvents != null)
{
isAfterConditionSatisfied = false;
}
else if (AfterTimePeriod != null)
{
isAfterConditionSatisfied = false;
long delta = AfterTimePeriod.NonconstEvaluator().DeltaUseEngineTime(null, agentInstanceContext);
afterConditionTime = agentInstanceContext.StatementContext.TimeProvider.Time + delta;
}
if (base.PostProcessFactory == null)
{
return(new OutputProcessViewDirectDistinctOrAfter(
ResultSetProcessorHelperFactory, agentInstanceContext, resultSetProcessor, afterConditionTime,
AfterConditionNumberOfEvents, isAfterConditionSatisfied, this));
}
OutputStrategyPostProcess postProcess = PostProcessFactory.Make(agentInstanceContext);
return(new OutputProcessViewDirectDistinctOrAfterPostProcess(
ResultSetProcessorHelperFactory, agentInstanceContext, resultSetProcessor, afterConditionTime,
AfterConditionNumberOfEvents, isAfterConditionSatisfied, this, postProcess));
}
public bool UpdateOutputCondition(int newEventsCount, int oldEventsCount)
{
// If we pull the interval from a variable, then we may need to reschedule
long msecIntervalSize = _timePeriod.NonconstEvaluator().DeltaMillisecondsUseEngineTime(null, _context);
long current = _context.TimeProvider.Time;
if (_lastUpdate == null || current - _lastUpdate >= msecIntervalSize)
{
_lastUpdate = current;
return(true);
}
return(false);
}
public long ComputeMilliseconds(MatchedEventMap beginState, PatternAgentInstanceContext context)
{
if (MillisecondsExpr is ExprTimePeriod)
{
ExprTimePeriod timePeriod = (ExprTimePeriod)MillisecondsExpr;
return(timePeriod.NonconstEvaluator()
.DeltaMillisecondsUseEngineTime(Convertor.Convert(beginState), context.AgentInstanceContext));
}
else
{
Object millisecondVal = PatternExpressionUtil.Evaluate(
"Timer-within guard", beginState, MillisecondsExpr, Convertor, context.AgentInstanceContext);
if (millisecondVal == null)
{
throw new EPException("Timer-within guard expression returned a null-value");
}
return((long)Math.Round(1000d * millisecondVal.AsDouble()));
}
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="timePeriod">is the number of minutes or seconds to batch events for, may include variables</param>
/// <param name="isStartConditionOnCreation">if set to <c>true</c> [is start condition on creation].</param>
public OutputConditionTimeFactory(ExprTimePeriod timePeriod, bool isStartConditionOnCreation)
{
_timePeriod = timePeriod;
_timePeriodDeltaComputation = timePeriod.NonconstEvaluator();
_isStartConditionOnCreation = isStartConditionOnCreation;
}