Need help with calling and returning value from a function in scala

[tushar pandit]

Hi,

I am trying to call function fetchFromDruid

def main(args: Array[String]): Unit = {
  val res = fetchFromDruid()
  // res comes as null here
}

def fetchFromDruid(): GroupByResponse {
  implicit val executionContext = ExecutionContext.Implicits.global
  val client = DruidClient("http://localhost:8082")

  val query = GroupByQuery(
    source = "wikipedia",
    interval = new Interval(new DateTime().minusMonths(60), new DateTime()),
    dimensions = Seq("countryName"),
    descending = true,
    granularity = Granularity.All,
    aggregate = Seq(
      DSL.count("row_count")
    ),
    postAggregate = Seq(
    ),
    limit = Some(100)
  )

  client(query).onComplete {
    case Success(resp) =>
      resp.data.foreach { row =>
        println(row)
      }
      return resp
      println("none")
    //System.exit(0)
    case Failure(ex) =>
      ex.printStackTrace()
      return null
    //System.exit(0)
  }
}

But somehow I am not able to return the response to the caller; i.e the main function. What could be the issue?

Thanks,

Tushar

[Jed Wesley-Smith]

Tushar, this is a duplicate question. Please see the other one for a response, and please try not to double post if possible, thanks!

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[tushar pandit]

Yeah sorry. Somehow mty questions were not getting posted and accidentally I clicked twice. It got posted three hours later. Sorry about that.

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[Jed Wesley-Smith]

this is a moderated forum to prevent spam, you are now authorised to post

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[tushar pandit]

Ok. Thanks for clarifying