Play : Get ride of Thread.sleep to simulate remote processing

gistfile1.scala

package controllers

import play.api._
import play.api.mvc._
import play.api.libs.concurrent.Execution.Implicits._
import play.api.libs.concurrent.Akka
import play.api.Play.current
import scala.concurrent._
import scala.concurrent.duration._

object Dummy extends Controller {
  
  // ------------------------------------------------------------
  def slowtest(delayInSeconds:Int) = Action {
    val thepromise = Promise[String]()
    
    Akka.system.scheduler.scheduleOnce(delayInSeconds seconds) {
      thepromise success s"I'm slow, $delayInSeconds seconds"
    }    

    Async {
      thepromise.future map { msg=> Ok(views.html.message(msg)) }
    }
  }
  
}