case classCSVToDataFrame(sqlContext: SQLContext, csvPath: String, options: Map[String, String]) extends Transformer[DataFrame] with Product with Serializable
transform CSV -> DataFrame
case classDataFrameToCSV(table: DataFrame, csvPath: String) extends Transformer[Unit] with Product with Serializable
transform DataFrame -> CSV
case classTimeDataFormalizer(table: DataFrame, timeCols: Array[String], timeFormat: String = "yyyy-MM-dd HH:mm:ss.SSS", timezone: DateTimeZone = DateTimeZone.UTC) extends Transformer[DataFrame] with Product with Serializable
transform DataFrame -> DataFrame by formalizing date time column from variable
length date format 7/1/2015 1:0:0 AM to standard date format