bio.ferlab.datalake.spark3.transformation.ToDate.scala Maven / Gradle / Ivy

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Library built on top of Apache Spark to speed-up data lakes development..

There is a newer version: 14.8.0

package bio.ferlab.datalake.spark3.transformation

import org.apache.spark.sql.DataFrame
import org.apache.spark.sql.functions.{col, to_date}

case class ToDate(format: String, columns: String*) extends Transformation {
  override def transform: DataFrame => DataFrame = {df =>
    columns.foldLeft(df)((d, c) =>  d.withColumn(c, to_date(col(c), format)))
  }
}