/**
  * Created by ania on 23.04.17.
  */

object Application {
  def main(args: Array[String]): Unit = {
    var plik = "test.json"
    var strategy : Parser = null
    plik.split("\\.").last match {
      case "json" => strategy = new JsonParser()
      case "csv" => strategy = new CSVParser()
      case _ | null => throw new IllegalArgumentException("Not supported extension")
    }
    strategy.parse()
  }
}

trait Parser {

  def algorithm()

  def parse(): Unit = {
    algorithm()
  }
}

class CSVParser() extends Parser {
  override def algorithm: Unit = {
    print("Parsuje CSV")
  }
}

class JsonParser() extends Parser {
  override def algorithm(): Unit = {
    print("Parsuje JSON")
  }
}