@Override
public long[] load(BoboIndexReader reader) throws IOException {
IndexReader innerReader = reader.getInnerReader();
if (innerReader instanceof ZoieSegmentReader) {
ZoieSegmentReader zoieReader = (ZoieSegmentReader) innerReader;
return zoieReader.getUIDArray();
} else {
throw new IOException("inner reader not instance of " + ZoieSegmentReader.class);
}
}
