PoiMapping.scala

object PoiMapping {

  type Poi = Int
  type Grade = Int
  case class MatchResult(poi: Poi, grade: Grade)

  private def searchMatchingCandidates(poi: Poi): Seq[Poi] = 1 to 300 by 3

  private def evaluateMatching(p: Poi, c: Poi): Grade = (p - c).abs

  private def findBestMatch(p: Poi, candidates: Seq[Poi]): MatchResult =
    candidates.map(c => MatchResult(c, evaluateMatching(p, c))).sortBy(_.grade).head

  def manOf[T: Manifest](t: T): Manifest[T] = manifest[T]

  def main(args: Array[String]) {
    import org.json4s._
    import org.json4s.native.JsonMethods._
    import scala.sys.process._
    implicit val formats = DefaultFormats

    val response = Seq("curl", "-s", "http://172.19.106.242/tmap_dev/1.0/search/all.json?q=하동관&sort=score&start=0&rows=10&area_name=&coord.focus.radius=&coord.focus.y=37.5663727512167&coord.focus.x=126.985023021698&coord.focus.type=wgs84").!!
    val json = parse(response)
    (json \ "response" \ "docs" \\ "name4" \ classOf[JString]).foreach(println)

    val pois: Seq[Poi] = 1 to 200 by 2
    pois.par.
      map(p => (p, searchMatchingCandidates(p))).
      map { case(p, candidates) => (p, findBestMatch(p, candidates)) }.
      foreach(println)
  }
}