Nice, good job the akka team
On Thursday, December 4, 2014 6:08:30 PM UTC+1, rkuhn wrote:
>
> Dear hakkers,
>
> we are very pleased to announce the availability of the first milestone
> release of the upcoming Akka Streams and Akka HTTP modules. The
> significance of this milestone is that we have roughly reached feature
> parity with Spray (sans spray-servlet that we will not port) and the
> underlying streams are mature enough to take a closer look at their API.
>
> *It is important to note that we have focused entirely on the API and its
> semantics, performance has not yet been optimized. Any benchmarks done at
> this point are likely to be invalidated within weeks as we continue to work
> on these projects.* (Nevertheless we find it performant enough to play
> around with, so don’t hold back!)
>
> So, what is it that we are so excited about? Place a dependency on
> "com.typesafe.akka" % "akka-stream-experimental_2.11" % "1.0-M1" (also
> available for Scala 2.10) into your build definition and you can write an
> echo server implementation like so:
>
> val toUppercase = Flow[ByteString].map(bs => bs
> .map(_.toChar.toUpper.asInstanceOf[Byte]))
>
> StreamTcp().bind(serverAddress).connections.foreach { conn =>
> println("Client connected from: " + conn.remoteAddress)
> conn handleWith toUppercase
> }
>
> and then you can connect to this server and use it as an uppercase service:
>
> val result: Future[ByteString] =
> Source(testInput)
> .via(StreamTcp().outgoingConnection(serverAddress).flow)
> .fold(ByteString()) { (acc, in) ⇒ acc ++ in }
>
> This will of course return a Future in order to keep everything nicely
> asynchronous and non-blocking. For more details you can take a look at the
> API docs (for Java
> <http://doc.akka.io/japi/akka-stream-and-http-experimental/1.0-M1/> and
> Scala
> <http://doc.akka.io/api/akka-stream-and-http-experimental/1.0-M1/#package>).
> On the HTTP front we kept the routing DSL very close to the one you know
> from spray-routing, and we supplemented it with a nice Java DSL as well (for
> the full program see here
> <https://github.com/akka/akka/blob/akka-stream-and-http-experimental-1.0-M1/akka-http-java-tests/src/main/java/akka/http/server/japi/examples/simple/SimpleServerApp.java>,
>
> you’ll need to add akka-http-java-experimental_2.11 as dependency):
>
> route(
> // matches the empty path
> pathSingleSlash().route(
> getFromResource("web/calculator.html")
> ),
> // matches paths like this: /add?x=42&y=23
> path("add").route(
> handleWith(addHandler, x, y)
> ),
> // matches paths like this: /multiply/{x}/{y}
> path("multiply", xSegment, ySegment).route(
> // bind handler by reflection
> handleWith(SimpleServerApp.class, "multiply", xSegment,
> ySegment)
> )
> )
>
> You can find examples also in Activator templates (for Java
> <https://typesafe.com/activator/template/akka-stream-java8> and Scala
> <https://typesafe.com/activator/template/akka-stream-scala>).
>
> Over the next weeks we will continue to work on smoothing out kinks and
> edges, in particular those that you—dear reader—report, either on this
> mailing list or via github issues
> <https://github.com/akka/akka/issues/new>. Prominent features that are
> yet to be done are SSL support and WebSockets, for an exhaustive list you
> can check our ticket list
> <https://github.com/akka/akka/issues?q=is:open+is:issue+milestone:streams-1.0>.
>
> The plan is to reach feature completeness and adequate performance around
> February 2015, so stay tuned!
>
> Regards,
>
> *Dr. Roland Kuhn*
> *Akka Tech Lead*
> Typesafe <http://typesafe.com/> – Reactive apps on the JVM.
> twitter: @rolandkuhn
> <http://twitter.com/#!/rolandkuhn>
>
>
--
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