public static CompressionCodec getGzipCodec(Configuration conf) {
        try {
            return (CompressionCodec) ReflectionUtils.newInstance(
                conf.getClassByName("org.apache.hadoop.io.compress.GzipCodec").asSubclass(CompressionCodec.class),
                conf);
        } catch (ClassNotFoundException e) {
            logger.warn("GzipCodec could not be instantiated", e);
            return null;
        }
    }
public static CompressionCodec getGzipCodec ( Configuration conf ) { try { return ( CompressionCodec ) ReflectionUtils . newInstance ( conf . getClassByName ( "org.apache.hadoop.io.compress.GzipCodec" ) . asSubclass ( CompressionCodec . class ) , conf ) ; } catch ( ClassNotFoundException e ) { logger . warn ( "GzipCodec could not be instantiated" , e ) ; return null ; } }
Instantiates a Hadoop codec for compressing and decompressing Gzip files. This is the
most common compression applied to WARC files.

@param conf The Hadoop configuration.