private void scoreWindowMultipleScorers(
LeafCollector collector,
Bits acceptDocs,
int windowBase,
int windowMin,
int windowMax,
int maxFreq)
throws IOException {
while (maxFreq < minShouldMatch && maxFreq + tail.size() >= minShouldMatch) {
// a match is still possible
final BulkScorerAndDoc candidate = tail.pop();
candidate.advance(windowMin);
if (candidate.next < windowMax) {
leads[maxFreq++] = candidate;
} else {
head.add(candidate);
}
}
if (maxFreq >= minShouldMatch) {
// There might be matches in other scorers from the tail too
for (int i = 0; i < tail.size(); ++i) {
leads[maxFreq++] = tail.get(i);
}
tail.clear();
scoreWindowIntoBitSetAndReplay(
collector, acceptDocs, windowBase, windowMin, windowMax, leads, maxFreq);
}
// Push back scorers into head and tail
for (int i = 0; i < maxFreq; ++i) {
final BulkScorerAndDoc evicted = head.insertWithOverflow(leads[i]);
if (evicted != null) {
tail.add(evicted);
}
}
}
