presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/OrcStorageManager.java/OrcStorageManager/createShardInfo
class OrcStorageManager:    private ShardInfo createShardInfo(UUID shardUuid, OptionalInt bucketNumber, File file, Set<String> nodes, long rowCount, long uncompressedSize)
    {
        return new ShardInfo(shardUuid, bucketNumber, nodes, computeShardStats(file), rowCount, file.length(), uncompressedSize, xxhash64(file));
    }