Retry wrapper in scala

retry.scala

  /**
   * Retries a function
   * @param max the maximum retries
   * @param attempt the current attempt number
   * @param i the input
   * @param fnc the function to wrap
   * @tparam I the input parameter type
   * @tparam O the output parameter type
   * @return either Some(instanceOf[O]) or None if more exceptions occurred than permitted by max.
   */
  def retry[I,O](max : Int, attempt : Int, i : I, fnc : (I) => O) : Option[O] = {
    try {
      Some(fnc(i))
    } catch {
      case t : Throwable => if (attempt < max) {
        log.info("Retrying attempt:" + attempt)
        retry(max, attempt+1, i, fnc)
      } else {
        log.severe("Giving up after attempts:" + attempt)
        None
      }
    }
  }