| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.gearpump.akkastream.example |
| |
| import akka.NotUsed |
| import akka.actor.{Actor, ActorSystem, Props} |
| import akka.stream.{ActorMaterializer, ActorMaterializerSettings, ClosedShape} |
| import akka.stream.scaladsl._ |
| import org.apache.gearpump.akkastream.GearpumpMaterializer |
| import org.apache.gearpump.cluster.main.{ArgumentsParser, CLIOption} |
| import org.apache.gearpump.util.AkkaApp |
| |
| import scala.concurrent.{Await, Future} |
| import scala.concurrent.duration._ |
| |
| /** |
| * Stream example showing Broadcast |
| */ |
| object Test9 extends AkkaApp with ArgumentsParser { |
| // scalastyle:off println |
| override val options: Array[(String, CLIOption[Any])] = Array( |
| "gearpump" -> CLIOption[Boolean]("<boolean>", required = false, defaultValue = Some(false)) |
| ) |
| |
| override def main(akkaConf: Config, args: Array[String]): Unit = { |
| val config = parse(args) |
| implicit val system = ActorSystem("Test9", akkaConf) |
| implicit val materializer: ActorMaterializer = config.getBoolean("gearpump") match { |
| case true => |
| GearpumpMaterializer() |
| case false => |
| ActorMaterializer( |
| ActorMaterializerSettings(system).withAutoFusing(false) |
| ) |
| } |
| implicit val ec = system.dispatcher |
| |
| val sinkActor = system.actorOf(Props(new SinkActor())) |
| val source = Source((1 to 5)) |
| val sink = Sink.actorRef(sinkActor, "COMPLETE") |
| val flowA: Flow[Int, Int, NotUsed] = Flow[Int].map { |
| x => println(s"processing broadcasted element : $x in flowA"); x |
| } |
| val flowB: Flow[Int, Int, NotUsed] = Flow[Int].map { |
| x => println(s"processing broadcasted element : $x in flowB"); x |
| } |
| |
| val graph = RunnableGraph.fromGraph(GraphDSL.create() { implicit b => |
| import GraphDSL.Implicits._ |
| val broadcast = b.add(Broadcast[Int](2)) |
| val merge = b.add(Merge[Int](2)) |
| source ~> broadcast |
| broadcast ~> flowA ~> merge |
| broadcast ~> flowB ~> merge |
| merge ~> sink |
| ClosedShape |
| }) |
| |
| graph.run() |
| |
| Await.result(system.whenTerminated, 60.minutes) |
| } |
| |
| class SinkActor extends Actor { |
| def receive: Receive = { |
| case any: AnyRef => |
| println("Confirm received: " + any) |
| } |
| } |
| // scalastyle:on println |
| } |