How to convert a Twitter Future to Scala (2.10)/Akka Future

[Drew Kutcharian]

Hey Guys,

Does anyone know what's the best way to convert (or wrap) a Twitter Future to a Scala 2.10 (Akka) Future? I'm using a Twitter library that returns Twitter Futures but I would like to convert them to Scala/Akka Future before passing them around in the rest of my code.

Thanks,

Drew

[Derek Williams]

I'm not really familiar with Twitter's library, but should be able to do something like this:

import scala.concurrent.{Future, Promise}

import com.twitter.util.{Future => TwitterFuture, Throw, Return}

def fromTwitter[A](twitterFuture: TwitterFuture[A]): Future[A] = {

  val promise = Promise[A]()

  twitterFuture respond {

    case Return(a) => promise success a

    case Throw(e)  => promise failure e

  }

  promise.future

}

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Derek Williams

[Andrew Headrick]

Out of curiosity, which library are you using? I didn't know any of their libraries were 2.10 compatible yet.

-A

[Drew Kutcharian]

Thanks Derek. I'll give this a try.

[Drew Kutcharian]

I'm using libkestrel which I haven't yet tried to compile with 2.10 ;)

[Evan Chan]

This seems like it'd be great to document, so I added an Assembla ticket:

https://www.assembla.com/spaces/akka/tickets/2908-document-how-to-convert-twitter-futures-to-akka-scala-futures#/activity/ticket:

--
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Evan Chan
Senior Software Engineer | 
e...@ooyala.com | (650) 996-4600
www.ooyala.com | blog | @ooyala

[Jonas Bonér]

I thought Twitter was moving to Scala Futures.

Jonas Bonér
Phone: +46 733 777 123
Home: http://jonasboner.com
Twitter: @jboner