scala retry 참조 코드

scala retry 참조 코드 

https://stackoverflow.com/questions/7930814/whats-the-scala-way-to-implement-a-retry-able-call-like-this-one

import util._

object RetryUtils {
  
  @annotation.tailrec
  def retry[T](n: Int)(fn: => T): T = {
    Try { fn } match {
      case Success(x) => x
      case _ if n > 1 => retry(n - 1)(fn)
      case Failure(e) => throw e
    }
  }
}

예제 코드

val retryResult = retry(3) {
  if (validateObject(esClient)) {
    esClient
  } else {
    null
  }
}