Saving contents of df.show() as a string in spark-scala app

Question

I need to save the output of df.show() as a string so that i can email it directly.

For ex., the below example taken from official spark docs,:

val d         


        

Answer 1

scala.Console has a withOut method for this kind of thing:

val outCapture = new ByteArrayOutputStream
Console.withOut(outCapture) {
  df.show()
}
val result = new String(outCapture.toByteArray)