Converting a Twitter future to a Scala Future

twitterFutureToScala.scala

import com.twitter.util.{Future => TwFuture}
import scala.concurrent.{Future => ScFuture, promise => scPromise}
implicit def twFutureToScala[T](twFuture: TwFuture[T]): ScFuture[T] = {
  val prom = scPromise[T]
  twFuture.onComplete { res: T =>
    prom.success(res)
  }
  twFuture.onFailure { t: Throwable =>
   prom.failure(t)
  }
  prom
}