parses phone numbers to their locale via libphonenumber

gistfile1.scala

// Parses a text file of numbers and outputs each number with its locale and
// counts of numbers found per each locale.
//
// Usage:
//  scala -classpath ./lib/offline-geocoder-1.9.jar:./lib/libphonenumber-4.5.jar ./locator.scala <input_file>

import java.util.Locale
import scala.io.Source
import scala.collection.mutable.Map
import com.google.i18n.phonenumbers._
import com.google.i18n.phonenumbers.geocoding._

val phoneNumberUtil = PhoneNumberUtil.getInstance()
val geocoder = PhoneNumberOfflineGeocoder.getInstance()
val numbers = Map[String, Int]()

if (args.length > 0) {
  for (number <- Source.fromFile(args(0)).getLines()) {
    try {
      val numberProto = PhoneNumberUtil.getInstance().parse("011" + number, "US")
      val locale = geocoder.getDescriptionForNumber(numberProto, Locale.ENGLISH)
      val localeOutput = if(locale.length() > 0) locale else "Unknown"

      if (numbers.contains(localeOutput))
        numbers(localeOutput) += 1
      else
        numbers += (localeOutput -> 1)

      println(number + ": "+ localeOutput)
    } catch {
      case e: NumberParseException => println(number + ": Invalid Number")
    }
  }

  println(numbers)
}