internal ValueExtractor Fetch(RrdDb rrd, long startTime, long endTime)
{
long rrdStep = rrd.RrdDef.Step;
FetchData[] result = new FetchData[datasources.Length];
string[] names = new string[numSources];
int tblPos = 0;
for (int i = 0; i < datasources.Length; i++)
{
if (datasources[i].Count > 0)
{
// Set the list of ds names
string[] dsNames = new string[datasources[i].Count];
string[] vNames = new string[datasources[i].Count];
for (int j = 0; j < dsNames.Length; j++)
{
string[] spair = (string[])datasources[i][j];
dsNames[j] = spair[0];
vNames[j] = spair[1];
}
// Fetch datasources
FetchRequest request = rrd.CreateFetchRequest(cfNames[i], startTime, endTime + rrdStep);
request.SetFilter(dsNames);
FetchData data = request.FetchData();
for (int j = 0; j < vNames.Length; j++)
{
names[data.GetDsIndex(dsNames[j]) + tblPos] = vNames[j];
}
tblPos += dsNames.Length;
result[i] = data;
}
}
return(new ValueExtractor(names, result));
}