WS executeRecovering

gistfile1.scala

import play.api.libs.ws._

  def get(url: String): Future[WSResponse] = {
    val split = url.split("/")
    val hostname = split(0)
    val path = "/"+split(1)

    def getHosts = Try(InetAddress.getAllByName(hostname).map(_.getHostAddress).toSeq)

    def executeRecovering(triedHosts: Seq[String] = Nil): Future[WSResponse] = {
      getHosts match {
        case Failure(e) => Future.failed(e)
        case Success(hosts) =>
          val unTriedHosts = hosts.filterNot(triedHosts.contains)
          unTriedHosts.size match {
            case 0 => Future.failed(new RuntimeException("no can do"))
            case 1 => WS.url(unTriedHosts.head+path).get()
            case _ => WS.url(unTriedHosts.head+path).get().recoverWith {
              case e => executeRecovering(triedHosts ++ Seq(unTriedHosts.head))
            }
          }
      }
    }

    executeRecovering()
  }