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System wide materializer (#27491)

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Introduces a materializer started through an extension and then an implicit
conversion for Scala turning an implicitly available ActorSystem into a
materializer. The Java APIs has been ammended with run-methods accepting
an ActorSystem.
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Johan Andrén 2019-08-23 18:19:27 +02:00 • committed by GitHub
parent 77d1d33dbc
commit 45c826a218
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196 changed files with 1148 additions and 1129 deletions
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16
akka-docs/src/test/java/jdocs/stream/operators/SourceDocExamples.java
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@ -10,8 +10,6 @@ import akka.NotUsed;
import akka.actor.ActorSystem;
import akka.actor.testkit.typed.javadsl.ManualTime;
import akka.actor.testkit.typed.javadsl.TestKitJunitResource;
import akka.stream.ActorMaterializer;
import akka.stream.Materializer;
import akka.stream.javadsl.Source;
// #range-imports
@ -35,23 +33,21 @@ public class SourceDocExamples {
public static void fromExample() {
// #source-from-example
final ActorSystem system = ActorSystem.create("SourceFromExample");
final Materializer materializer = ActorMaterializer.create(system);
Source<Integer, NotUsed> ints = Source.from(Arrays.asList(0, 1, 2, 3, 4, 5));
ints.runForeach(System.out::println, materializer);
ints.runForeach(System.out::println, system);
String text =
"Perfection is finally attained not when there is no longer more to add,"
+ "but when there is no longer anything to take away.";
Source<String, NotUsed> words = Source.from(Arrays.asList(text.split("\\s")));
words.runForeach(System.out::println, materializer);
words.runForeach(System.out::println, system);
// #source-from-example
}
static void rangeExample() {
final ActorSystem system = ActorSystem.create("Source");
final Materializer materializer = ActorMaterializer.create(system);
// #range
@ -69,7 +65,7 @@ public class SourceDocExamples {
// #range
// #run-range
source.runForeach(i -> System.out.println(i), materializer);
source.runForeach(i -> System.out.println(i), system);
// #run-range
}
@ -77,12 +73,11 @@ public class SourceDocExamples {
// #actor-ref
final ActorSystem system = ActorSystem.create();
final Materializer materializer = ActorMaterializer.create(system);
int bufferSize = 100;
Source<Object, ActorRef> source = Source.actorRef(bufferSize, OverflowStrategy.dropHead());
ActorRef actorRef = source.to(Sink.foreach(System.out::println)).run(materializer);
ActorRef actorRef = source.to(Sink.foreach(System.out::println)).run(system);
actorRef.tell("hello", ActorRef.noSender());
actorRef.tell("hello", ActorRef.noSender());
@ -96,11 +91,10 @@ public class SourceDocExamples {
// #actor-ref-with-ack
final ActorSystem system = ActorSystem.create();
final Materializer materializer = ActorMaterializer.create(system);
Source<Object, ActorRef> source = Source.actorRefWithAck("ack");
ActorRef actorRef = source.to(Sink.foreach(System.out::println)).run(materializer);
ActorRef actorRef = source.to(Sink.foreach(System.out::println)).run(system);
probe.send(actorRef, "hello");
probe.expectMsg("ack");
probe.send(actorRef, "hello");