internal void AddValue(string fieldName, double value, DateTime timestamp)
{
if (StatisticsLogger.IsValidField(fieldName))
{
// add value for StatisticsLogger use
statValues.Add(new StatValue(value, timestamp));
}
// "value" is the occurring event in this very moment,
// so "Current" is holding previous value right now
if (Current.Value != value)
{
lastEvent = new StatValue(Current.Value, Current.Timestamp);
if (value == 0 && lastEvent.Value > 0)
{
lastOn = lastEvent;
lastOff = new StatValue(value, timestamp);
}
else if (value > 0 && lastEvent.Value == 0)
{
lastOff = lastEvent;
lastOn = new StatValue(value, timestamp);
}
}
// keeep size within historyLimit (minutes)
try
{
while ((DateTime.UtcNow - historyValues[historyValues.Count - 1].Timestamp).TotalMinutes > historyLimit)
{
historyValues.RemoveAll(sv => (DateTime.UtcNow - sv.Timestamp).TotalMinutes > historyLimit);
}
// leave this wrapped in a try..catch
} catch { }
// insert current value into history and so update "Current" to "value"
historyValues.Insert(0, new StatValue(value, timestamp));
}
/// <summary>
/// Remove all parameters from this store.
/// </summary>
public void Reset()
{
storeList.RemoveAll(s => s.Name == storeName);
}