internal override void CalculateValue(double value, DateTime timestamp)
{
GaugeDuration aggregateDuration = base.aggregateDuration;
if (aggregateDuration.IsEmpty || ((IValueConsumer)this).GetProvider() == null)
{
base.CalculateValue(value, timestamp);
return;
}
noMoreData = false;
HistoryCollection data = ((IValueConsumer)this).GetProvider().GetData(aggregateDuration, timestamp);
HistoryEntry[] array = data.Select(aggregateDuration, timestamp);
double num = value;
bool flag = false;
HistoryEntry[] array2 = array;
foreach (HistoryEntry historyEntry in array2)
{
if (!double.IsNaN(historyEntry.Value))
{
num = Math.Max(historyEntry.Value, num);
flag = true;
}
}
if (!flag)
{
num = ((data.Count <= 0) ? double.NaN : data.Top.Value);
noMoreData = true;
}
base.CalculateValue(num, timestamp);
}
HistoryCollection IValueProvider.GetData(GaugeDuration period, DateTime currentDate)
{
if (History.Count > 0)
{
queryDept.Extend(period, currentDate, History[0].Timestamp);
}
return(History);
}
public virtual void Reset()
{
History.Clear();
queryDept = new GaugeDuration(historyDept.Count, historyDept.DurationType);
foreach (IValueConsumer consumer in consumers)
{
consumer.Reset();
}
}
internal HistoryEntry[] Select(GaugeDuration duration, DateTime currentDate)
{
if (!duration.IsInfinity)
{
if (duration.IsTimeBased)
{
DateTime fromDate = currentDate - duration.ToTimeSpan();
return(Select(fromDate, currentDate));
}
return(Select((int)duration.Count));
}
return(Select());
}
internal override void CalculateValue(double value, DateTime timestamp)
{
GaugeDuration aggregateDuration = base.aggregateDuration;
if (aggregateDuration.IsEmpty)
{
base.CalculateValue(value, timestamp);
return;
}
noMoreData = false;
double num = value;
if (((IValueConsumer)this).GetProvider() != null)
{
HistoryEntry[] array = ((IValueConsumer)this).GetProvider().GetData(aggregateDuration, timestamp).Select(aggregateDuration, timestamp);
if (array.Length > 1)
{
num = 0.0;
long num2 = 0L;
long num3 = 0L;
for (int i = 0; i < array.Length - 1; i++)
{
num2 = array[i + 1].Timestamp.Ticks - array[i].Timestamp.Ticks;
if (num2 == 0L)
{
num += (array[i + 1].Value - array[i].Value) / 2.0;
continue;
}
num += array[i + 1].Value * (double)num2;
num3 += num2;
}
if (num3 > 0)
{
num /= (double)num3;
}
}
else if (array.Length != 0)
{
num = array[0].Value;
}
else
{
noMoreData = true;
}
}
base.CalculateValue(num, timestamp);
}
internal void Truncate(GaugeDuration d)
{
if (d.IsInfinity)
{
return;
}
if (d.IsEmpty)
{
lock (this)
{
Clear();
}
return;
}
if (d.IsCountBased)
{
if (!((double)base.Count > d.Count))
{
return;
}
lock (this)
{
while ((double)base.Count > d.Count)
{
RemoveAt(0);
}
}
return;
}
DateTime t = Top.Timestamp - d.ToTimeSpan();
if (!(this[0].Timestamp < t))
{
return;
}
lock (this)
{
while (this[0].Timestamp < t)
{
RemoveAt(0);
}
}
}
internal void Extend(GaugeDuration extend, DateTime topDate, DateTime btmDate)
{
if (extend.IsInfinity)
{
DurationType = DurationType.Infinite;
}
else if (extend.IsCountBased && Count < extend.Count)
{
Count = extend.Count;
}
else if (extend.IsTimeBased)
{
DateTime t = topDate - extend.ToTimeSpan();
if (btmDate > t)
{
Count++;
}
}
}
