@Override
public void setNextReader(AtomicReaderContext context) throws IOException {
values = indexFieldData.load(context).getBytesValues(parentType);
if (values != null) {
ordinals = values.ordinals();
final long maxOrd = ordinals.getMaxOrd();
if (parentIdsIndex == null) {
parentIdsIndex = bigArrays.newLongArray(BigArrays.overSize(maxOrd), false);
} else if (parentIdsIndex.size() < maxOrd) {
parentIdsIndex = bigArrays.grow(parentIdsIndex, maxOrd);
}
parentIdsIndex.fill(0, maxOrd, -1L);
}
}
@Override
public void collect(int doc) throws IOException {
if (values != null) {
long ord = 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;
doScore(parentIdx);
} else {
scores = bigArrays.grow(scores, parentIdx + 1);
scores.set(parentIdx, scorer.score());
}
parentIdsIndex.set(ord, parentIdx);
} else {
doScore(parentIdx);
}
}
}
