def sizeStrToBytes()

in wayang-benchmark/src/main/scala/org/apache/wayang/apps/terasort/TeraApp.scala [104:125]

• 20 lines of code
• 11 McCabe index (conditional complexity)

  def sizeStrToBytes(str: String): Long = {
    val reg = "(\\d+(\\.\\d+)?)([B|k|K|m|M|g|G|t|T])"
    val groups = Pattern.compile(reg).matcher(str)
    groups.find()

    val number_part:Double = groups.group(1).toDouble
    val letter_part:String = groups.group(3)

    val conversion = letter_part match {
      case "B" => 1L //2^0
      case "k" => 1024L //2^10
      case "K" => 1024L //2^10
      case "m" => 1048576L //2^20
      case "M" => 1048576L //2^20
      case "g" => 1073741824L //2^30
      case "G" => 1073741824L //2^30
      case "t" => 1099511627776L //2^40
      case "T" => 1099511627776L //2^40
      case _ => 1L //2^0
    }
    (number_part * conversion).toLong
  }