Github user rxin commented on a diff in the pull request:
https://github.com/apache/spark/pull/10805#discussion_r50085424
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVParameters.scala
---
@@ -107,3 +117,28 @@ private[csv] object ParseModes {
true // We default to permissive is the mode string is not valid
}
}
+
+private[csv] object CSVCompressionCodecs {
+ val shortCompressionCodecNames = Map(
+ "bzip2" -> classOf[BZip2Codec].getName,
+ "gzip" -> classOf[GzipCodec].getName,
+ "lz4" -> classOf[Lz4Codec].getName,
+ "snappy" -> classOf[SnappyCodec].getName)
+
+ /**
+ * Return the full version of the given codec class.
+ * If it is already a class name, just return it.
+ */
+ def getCodecClassName(name: String): String = {
+ val codecName = shortCompressionCodecNames.getOrElse(name.toLowerCase,
name)
+ val codecClassName = try {
+ // Validate the codec name
+ Utils.classForName(codecName)
+ Some(codecName)
+ } catch {
+ case e: ClassNotFoundException => None
+ }
+ codecClassName.getOrElse(throw new IllegalArgumentException(s"Codec
[$codecName] " +
+ s"is not available. Available codecs are
${shortCompressionCodecNames.keys.mkString(",")}."))
--- End diff --
add a space after the comma
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