问如何使用AsyncHttpClient和scala实现简单重试

EN

object X extends App{
  type Request = String
  type Response = String
  import scala.concurrent.ExecutionContext.Implicits.global
  def retry(request: Request, process: Request => Future[Response], times: Int): Future[Response] ={
    val responseF = process(request)
    if(times > 0)
      responseF.recoverWith{
        case ex => println("fail")
          retry(request, process, times - 1)
      }
    else
      responseF
  }

  def process(s: Request): Future[Response] = {
    println("run process")
    if(Random.nextBoolean()) Future.successful("good") else Future.failed(new Exception)
  }

  val result = retry("", process, 3)
  import scala.concurrent.duration._
  println(Await.result(result, 1.second))

}