/// <summary>
/// This is the method that is used to index a stream of records
/// </summary>
public override void IndexRecords(IEnumerable <StdfRecord> records)
{
_AllRecords = new List <StdfRecord>();
//extents for the current wafer and part
Extents currentWaferExtents = null;
Extents currentPartExtents = null;
//tells us we're looking for something to confirm the extents are complete (helps us deal with multi-site testing)
bool waferEnding = false;
bool partsEnding = false;
//ends the current wafer extents at the specified index
void EndWafer(int endIndex)
{
currentWaferExtents.EndIndex = endIndex;
currentWaferExtents.EndOffset = _AllRecords[endIndex].Offset;
_WafersMap.AddExtents(currentWaferExtents);
currentWaferExtents = null;
waferEnding = false;
}
//ends the current part extents at the specified index
void EndParts(int endIndex)
{
currentPartExtents.EndIndex = endIndex;
currentPartExtents.EndOffset = _AllRecords[endIndex].Offset;
_PartsMap.AddExtents(currentPartExtents);
currentPartExtents = null;
partsEnding = false;
}
//loop through the records, building the structure
foreach (var r in records)
{
var index = _AllRecords.Count;
//look for marker records
//TODO: does all this checking/casting slow us down too much?
if (r.GetType() == typeof(Mir))
{
_Mir = (Mir)r;
}
else if (r.GetType() == typeof(Mrr))
{
_Mrr = (Mrr)r;
}
else if (r.GetType() == typeof(Pcr))
{
_Pcrs.Add((Pcr)r);
}
//if we think we're looking for the end of the wafers, and we hit something other than Wrr, we passed the end
if (waferEnding && r.GetType() != typeof(Wrr))
{
EndWafer(index - 1);
}
//if we think we're looking for the end of the parts, and we hit something other than Prr, we passed the end
if (partsEnding && r.GetType() != typeof(Prr))
{
EndParts(index - 1);
}
//when we hit Wrr or Prr, start looking for something else
if (r.GetType() == typeof(Wrr))
{
waferEnding = true;
}
else if (r.GetType() == typeof(Prr))
{
partsEnding = true;
}
//if it's a new Pir/Wir, start new extents
if (r.GetType() == typeof(Pir) && currentPartExtents == null)
{
currentPartExtents = new Extents {
StartIndex = index,
StartOffset = r.Offset
};
}
if (r.GetType() == typeof(Wir) && currentWaferExtents == null)
{
currentWaferExtents = new Extents {
StartIndex = index,
StartOffset = r.Offset
};
}
_AllRecords.Add(r);
}
var lastIndex = _AllRecords.Count - 1;
//end any open wafers/parts at the last index
if (waferEnding)
{
EndWafer(lastIndex);
}
if (partsEnding)
{
EndParts(lastIndex);
}
}