presto-rcfile/src/main/java/io/prestosql/rcfile/HadoopCodecFactory.java/HadoopCodecFactory/createCompressor
class HadoopCodecFactory:    @Override
    public RcFileCompressor createCompressor(String codecName)
    {
        CompressionCodec codec = createCompressionCodec(codecName);
        return new HadoopCompressor(codec);
    }