This service class converts IP to long and reverse. This class is useful for generating userIDs from IP addresses if user IDs are not present in your data.

IpServices.scala

def ipToLong(ipAddress: String): Long = {
  ipAddress.split("\\.").reverse.zipWithIndex.map(a=>a._1.toInt*math.pow(256,a._2).toLong).sum
}

def longToIP(long: Long): String = {
  (0 until 4).map(a=>long / math.pow(256, a).floor.toInt % 256).reverse.mkString(".")
}