private void Accumulate(ArcState state, double data)
{
if (Double.IsNaN(data))
{
state.NanSteps = (state.NanSteps + 1);
}
else
{
if (consolFun.Get().Equals("MIN"))
{
state.AccumValue = Util.Min(state.AccumValue, data);
}
else if (consolFun.Get().Equals("MAX"))
{
state.AccumValue = Util.Max(state.AccumValue, data);
}
else if (consolFun.Get().Equals("LAST"))
{
state.AccumValue = data;
}
else if (consolFun.Get().Equals("AVERAGE"))
{
state.AccumValue = Util.Sum(state.AccumValue, data);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="other"></param>
public void CopyStateTo(IRrdUpdatable other)
{
if (!(other is ArcState))
{
throw new RrdException("Cannot copy ArcState object to " + other.ToString());
}
ArcState arcState = (ArcState)other;
arcState.accumValue.Set(accumValue.Get());
arcState.nanSteps.Set(nanSteps.Get());
}
/// <summary>
///
/// </summary>
/// <param name="parentDb"></param>
public Archive(RrdDb parentDb)
{
this.parentDb = parentDb;
consolFun = new RrdString(this);
xff = new RrdDouble(this);
steps = new RrdInt(this);
rows = new RrdInt(this);
int n = parentDb.Header.DsCount;
states = new ArcState[n];
robins = new Robin[n];
for (int i = 0; i < n; i++)
{
states[i] = new ArcState(this);
robins[i] = new Robin(this, rows.Get());
}
}
private void FinalizeStep(ArcState state, Robin robin)
{
// should store
long arcSteps = steps.Get();
double arcXff = xff.Get();
long nanSteps = state.NanSteps;
//double nanPct = (double) nanSteps / (double) arcSteps;
double accumValue = state.AccumValue;
if (nanSteps <= arcXff * arcSteps && !Double.IsNaN(accumValue))
{
if (consolFun.Get().Equals("AVERAGE"))
{
accumValue /= (arcSteps - nanSteps);
}
robin.Store(accumValue);
}
else
{
robin.Store(Double.NaN);
}
state.AccumValue = Double.NaN;
state.NanSteps = 0;
}
internal void archive(int dsIndex, double data, long numUpdates)
{
Robin robin = robins[dsIndex];
ArcState state = states[dsIndex];
long step = parentDb.Header.Step;
long lastUpdateTime = parentDb.Header.LastUpdateTime;
long updateTime = Util.Normalize(lastUpdateTime, step) + step;
long arcStep = ArcStep;
while (numUpdates > 0)
{
Accumulate(state, data);
numUpdates--;
if (updateTime % arcStep == 0)
{
FinalizeStep(state, robin);
break;
}
else
{
updateTime += step;
}
}
int bulkUpdateCount = (int)Math.Min(numUpdates / steps.Get(), (long)rows.Get());
robin.BulkStore(data, bulkUpdateCount);
long remainingUpdates = numUpdates % steps.Get();
for (long i = 0; i < remainingUpdates; i++)
{
Accumulate(state, data);
}
}
