raboof/pekko
1
0
Fork 0
Code Issues Pull requests Projects Releases 6 Packages Wiki Activity Actions 11

docs for ask/pipeTo patterns

Browse source
This commit is contained in:
Roland 2012-01-20 18:09:26 +01:00
parent 020c6b61da
commit 1f99b425de
5 changed files with 119 additions and 72 deletions
Download patch file Download diff file Expand all files Collapse all files

50
akka-docs/java/code/akka/docs/actor/UntypedActorDocTestBase.java
View file

@ -37,6 +37,17 @@ import akka.util.Duration;
import akka.actor.ActorTimeoutException;
//#import-gracefulStop
//#import-askPipeTo
import static akka.pattern.Patterns.ask;
import static akka.pattern.Patterns.pipeTo;
import akka.dispatch.Future;
import akka.dispatch.Futures;
import akka.util.Duration;
import akka.util.Timeout;
import java.util.concurrent.TimeUnit;
import java.util.ArrayList;
//#import-askPipeTo
import akka.actor.Props;
import akka.actor.UntypedActor;
import akka.actor.UntypedActorFactory;
@ -45,6 +56,8 @@ import akka.dispatch.MessageDispatcher;
import org.junit.Test;
import scala.Option;
import java.lang.Object;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.concurrent.TimeUnit;
import akka.pattern.Patterns;
@ -198,6 +211,43 @@ public class UntypedActorDocTestBase {
//#gracefulStop
system.shutdown();
}
class Result {
final int x;
final String s;
public Result(int x, String s) {
this.x = x;
this.s = s;
}
}
@Test
public void usePatternsAskPipeTo() {
ActorSystem system = ActorSystem.create("MySystem");
ActorRef actorA = system.actorOf(new Props(MyUntypedActor.class));
ActorRef actorB = system.actorOf(new Props(MyUntypedActor.class));
ActorRef actorC = system.actorOf(new Props(MyUntypedActor.class));
//#ask-pipeTo
final Timeout t = new Timeout(Duration.create(5, TimeUnit.SECONDS));
final ArrayList<Future<Object>> futures = new ArrayList<Future<Object>>();
futures.add(ask(actorA, "request")); // using `akka.actor.timeout` from config
futures.add(ask(actorB, "reqeest", t)); // using explicit timeout from above
final Future<Iterable<Object>> aggregate = Futures.sequence(futures, system.dispatcher());
final Future<Result> transformed = aggregate.map(new akka.japi.Function<Iterable<Object>, Result>() {
public Result apply(Iterable<Object> coll) {
final Iterator<Object> it = coll.iterator();
final String s = (String) it.next();
final int x = (Integer) it.next();
return new Result(x, s);
}
});
pipeTo(transformed, actorC);
//#ask-pipeTo
}
public static class MyActor extends UntypedActor {