CompressionCodec.scala
private val shortCompressionCodecNames = Map(
"lz4" -> classOf[LZ4CompressionCodec].getName,
"lzf" -> classOf[LZFCompressionCodec].getName,
"snappy" -> classOf[SnappyCompressionCodec].getName,
"zstd" -> classOf[ZStdCompressionCodec].getName)
转载于:https://www.jianshu.com/p/4ddfcd4f4d70