How to use

countOneSegment

method

in

org.apache.lucene.facet.sortedset.SortedSetDocValuesFacetCounts

/** Does all the "real work" of tallying up the counts. */
private final void countAll() throws IOException {
 //System.out.println("ssdv count");
 OrdinalMap ordinalMap;
 // TODO: is this right?  really, we need a way to
 // verify that this ordinalMap "matches" the leaves in
 // matchingDocs...
 if (dv instanceof MultiDocValues.MultiSortedSetDocValues) {
  ordinalMap = ((MultiSortedSetDocValues) dv).mapping;
 } else {
  ordinalMap = null;
 }
 
 for(LeafReaderContext context : state.getReader().leaves()) {
  countOneSegment(ordinalMap, context.reader(), context.ord, null);
 }
}

/** Does all the "real work" of tallying up the counts. */
private final void count(List<MatchingDocs> matchingDocs) throws IOException {
 //System.out.println("ssdv count");
 OrdinalMap ordinalMap;
 // TODO: is this right?  really, we need a way to
 // verify that this ordinalMap "matches" the leaves in
 // matchingDocs...
 if (dv instanceof MultiDocValues.MultiSortedSetDocValues && matchingDocs.size() > 1) {
  ordinalMap = ((MultiSortedSetDocValues) dv).mapping;
 } else {
  ordinalMap = null;
 }
 
 IndexReader reader = state.getReader();
 for(MatchingDocs hits : matchingDocs) {
  // LUCENE-5090: make sure the provided reader context "matches"
  // the top-level reader passed to the
  // SortedSetDocValuesReaderState, else cryptic
  // AIOOBE can happen:
  if (ReaderUtil.getTopLevelContext(hits.context).reader() != reader) {
   throw new IllegalStateException("the SortedSetDocValuesReaderState provided to this class does not match the reader being searched; you must create a new SortedSetDocValuesReaderState every time you open a new IndexReader");
  }
  countOneSegment(ordinalMap, hits.context.reader(), hits.context.ord, hits);
 }
}