com.convergencelabs.convergence.server.util.concurrent.FutureUtils.scala Maven / Gradle / Ivy
/*
* Copyright (c) 2019 - Convergence Labs, Inc.
*
* This file is part of the Convergence Server, which is released under
* the terms of the GNU General Public License version 3 (GPLv3). A copy
* of the GPLv3 should have been provided along with this file, typically
* located in the "LICENSE" file, which is part of this source code package.
* Alternatively, see for the
* full text of the GPLv3 license, if it was not provided.
*/
package com.convergencelabs.convergence.server.util.concurrent
import scala.concurrent.{ExecutionContext, Future}
import scala.util.{Failure, Success, Try}
object FutureUtils {
def tryToFuture[A](t: => Try[A]): Future[A] = {
t match {
case Success(s) => Future.successful(s)
case Failure(fail) => Future.failed(fail)
}
}
def lift[T](f: Future[T])(implicit ec: ExecutionContext): Future[Try[T]] =
f map { Success(_) } recover { case e => Failure(e) }
def lift[T](fs: Seq[Future[T]])(implicit ec: ExecutionContext): Seq[Future[Try[T]]] =
fs map { lift(_) }
implicit class RichSeqFuture[+T](val fs: Seq[Future[T]]) extends AnyVal {
def onComplete[U](f: Seq[Try[T]] => U)(implicit ec: ExecutionContext): Unit = {
Future.sequence(lift(fs)) onComplete {
case Success(s) => f(s)
case Failure(e) => throw e // will never happen, because of the Try lifting
}
}
}
}