1 object Application extends Controller {

     2 

     3   def gt_cookie(c: Option[Cookie]) : Int = c.map(_.value) match {

     4     case Some(s) if (s.forall(_.isDigit)) => s.toInt 

     5     case _ => 0

     6   }

     7 

     8   def mk_cookie(i: Int) : Cookie = {

     9     Cookie("visits", i.toString)

    10   }

    11   

    12   // GET request: read cookie data first

    13   def index = Action { request =>

    14     

    15     val visits_cookie = request.cookies.get("visits")

    16     val visits = gt_cookie(visits_cookie)

    17 

    18     val msg1 = "You are a valued customer who has visited this site %d times."               

    19     val msg2 = "You have visited this site %d times."

    20     val msg = 

    21       if (visits >= 10) msg1.format(visits) else msg2.format(visits)

    22     

    23     //send with new cookie

    24     Ok(msg).as(HTML).withCookies(mk_cookie(visits + 1))

    25   }

    26 }

    27 

    28 

    29 

    30