/// <exception cref="System.IO.IOException"></exception>
public override void SetNextReader(AtomicReaderContext context)
{
if (segmentFacetCounts != null)
{
segmentResults.AddItem(((TermGroupFacetCollector.MV.SegmentResult)CreateSegmentResult
()));
}
groupFieldTermsIndex = FieldCache.DEFAULT.GetTermsIndex(((AtomicReader)context.Reader
()), groupField);
facetFieldDocTermOrds = FieldCache.DEFAULT.GetDocTermOrds(((AtomicReader)context.
Reader()), facetField);
facetFieldNumTerms = (int)facetFieldDocTermOrds.GetValueCount();
if (facetFieldNumTerms == 0)
{
facetOrdTermsEnum = null;
}
else
{
facetOrdTermsEnum = facetFieldDocTermOrds.TermsEnum();
}
// [facetFieldNumTerms() + 1] for all possible facet values and docs not containing facet field
segmentFacetCounts = new int[facetFieldNumTerms + 1];
segmentTotalCount = 0;
segmentGroupedFacetHits.Clear();
foreach (GroupedFacetHit groupedFacetHit in groupedFacetHits)
{
int groupOrd = groupedFacetHit.groupValue == null ? -1 : groupFieldTermsIndex.LookupTerm
(groupedFacetHit.groupValue);
if (groupedFacetHit.groupValue != null && groupOrd < 0)
{
continue;
}
int facetOrd;
if (groupedFacetHit.facetValue != null)
{
if (facetOrdTermsEnum == null || !facetOrdTermsEnum.SeekExact(groupedFacetHit.facetValue
))
{
continue;
}
facetOrd = (int)facetOrdTermsEnum.Ord();
}
else
{
facetOrd = facetFieldNumTerms;
}
// (facetFieldDocTermOrds.numTerms() + 1) for all possible facet values and docs not containing facet field
int segmentGroupedFacetsIndex = groupOrd * (facetFieldNumTerms + 1) + facetOrd;
segmentGroupedFacetHits.Put(segmentGroupedFacetsIndex);
}
if (facetPrefix != null)
{
TermsEnum.SeekStatus seekStatus;
if (facetOrdTermsEnum != null)
{
seekStatus = facetOrdTermsEnum.SeekCeil(facetPrefix);
}
else
{
seekStatus = TermsEnum.SeekStatus.END;
}
if (seekStatus != TermsEnum.SeekStatus.END)
{
startFacetOrd = (int)facetOrdTermsEnum.Ord();
}
else
{
startFacetOrd = 0;
endFacetOrd = 0;
return;
}
BytesRef facetEndPrefix = BytesRef.DeepCopyOf(facetPrefix);
facetEndPrefix.Append(UnicodeUtil.BIG_TERM);
seekStatus = facetOrdTermsEnum.SeekCeil(facetEndPrefix);
if (seekStatus != TermsEnum.SeekStatus.END)
{
endFacetOrd = (int)facetOrdTermsEnum.Ord();
}
else
{
endFacetOrd = facetFieldNumTerms;
}
}
else
{
// Don't include null...
startFacetOrd = 0;
endFacetOrd = facetFieldNumTerms + 1;
}
}
