private void IncorporateReading(TaskAttemptId attemptID, float newProgress, long
newTime)
{
//TODO: Refactor this method, it seems more complicated than necessary.
AtomicReference <ExponentiallySmoothedTaskRuntimeEstimator.EstimateVector> vectorRef
= estimates[attemptID];
if (vectorRef == null)
{
estimates.PutIfAbsent(attemptID, new AtomicReference <ExponentiallySmoothedTaskRuntimeEstimator.EstimateVector
>(null));
IncorporateReading(attemptID, newProgress, newTime);
return;
}
ExponentiallySmoothedTaskRuntimeEstimator.EstimateVector oldVector = vectorRef.Get
();
if (oldVector == null)
{
if (vectorRef.CompareAndSet(null, new ExponentiallySmoothedTaskRuntimeEstimator.EstimateVector
(this, -1.0, 0.0F, long.MinValue)))
{
return;
}
IncorporateReading(attemptID, newProgress, newTime);
return;
}
while (!vectorRef.CompareAndSet(oldVector, oldVector.Incorporate(newProgress, newTime
)))
{
oldVector = vectorRef.Get();
}
}
public override long EstimatedRuntime(TaskAttemptId id)
{
long startTime = startTimes[id];
if (startTime == null)
{
return(-1L);
}
ExponentiallySmoothedTaskRuntimeEstimator.EstimateVector vector = GetEstimateVector
(id);
if (vector == null)
{
return(-1L);
}
long sunkTime = vector.atTime - startTime;
double value = vector.value;
float progress = vector.basedOnProgress;
if (value == 0)
{
return(-1L);
}
double rate = smoothedValue == ExponentiallySmoothedTaskRuntimeEstimator.SmoothedValue
.Rate ? value : 1.0 / value;
if (rate == 0.0)
{
return(-1L);
}
double remainingTime = (1.0 - progress) / rate;
return(sunkTime + (long)remainingTime);
}