presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/OrcStorageManager.java/OrcStorageManager/fileOrcDataSource
class OrcStorageManager:    private static FileOrcDataSource fileOrcDataSource(OrcReaderOptions orcReaderOptions, File file)
            throws FileNotFoundException
    {
        return new FileOrcDataSource(file, orcReaderOptions);
    }