@Override
public void collect(int doc) throws IOException {
if (values != null) {
int ord = (int) ordinals.getOrd(doc);
long parentIdx = parentIdsIndex.get(ord);
if (parentIdx < 0) {
final BytesRef bytes = values.getValueByOrd(ord);
final int hash = values.currentValueHash();
parentIdx = parentIds.add(bytes, hash);
if (parentIdx < 0) {
parentIdx = -parentIdx - 1;
scores.increment(parentIdx, scorer.score());
occurrences.increment(parentIdx, 1);
} else {
scores = bigArrays.grow(scores, parentIdx + 1);
scores.set(parentIdx, scorer.score());
occurrences = bigArrays.grow(occurrences, parentIdx + 1);
occurrences.set(parentIdx, 1);
}
parentIdsIndex.set(ord, parentIdx);
} else {
scores.increment(parentIdx, scorer.score());
occurrences.increment(parentIdx, 1);
}
}
}
@Override
public int advance(int target) throws IOException {
if (remaining == 0) {
return currentDocId = NO_MORE_DOCS;
}
currentDocId = parentsIterator.advance(target);
if (currentDocId == DocIdSetIterator.NO_MORE_DOCS) {
return currentDocId;
}
bytesValues.setDocument(currentDocId);
long index = parentIds.find(bytesValues.nextValue(), bytesValues.currentValueHash());
if (index != -1) {
currentScore = scores.get(index);
currentScore /= occurrences.get(index);
remaining--;
return currentDocId;
} else {
return nextDoc();
}
}