presto-rcfile/src/main/java/io/prestosql/rcfile/HadoopDecompressor.java/HadoopDecompressor/HadoopDecompressor
class HadoopDecompressor:    public HadoopDecompressor(CompressionCodec codec)
    {
        this.codec = requireNonNull(codec, "codec is null");
        decompressor = CodecPool.getDecompressor(codec);
    }