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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.
This commit is contained in:
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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25
akka-docs/src/test/java/jdocs/stream/TwitterStreamQuickstartDocTest.java
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@ -41,19 +41,15 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
static ActorSystem system;
static Materializer mat;
@BeforeClass
public static void setup() {
system = ActorSystem.create("TwitterStreamQuickstartDocTest");
mat = ActorMaterializer.create(system);
}
@AfterClass
public static void tearDown() {
TestKit.shutdownActorSystem(system);
system = null;
mat = null;
}
abstract static class Model {
@ -201,11 +197,10 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
abstract static class Example1 {
// #first-sample
// #materializer-setup
// #system-setup
final ActorSystem system = ActorSystem.create("reactive-tweets");
final Materializer mat = ActorMaterializer.create(system);
// #first-sample
// #materializer-setup
// #system-setup
}
static class Example2 {
@ -263,12 +258,12 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
// #first-sample
// #authors-foreachsink-println
authors.runWith(Sink.foreach(a -> System.out.println(a)), mat);
authors.runWith(Sink.foreach(a -> System.out.println(a)), system);
// #first-sample
// #authors-foreachsink-println
// #authors-foreach-println
authors.runForeach(a -> System.out.println(a), mat);
authors.runForeach(a -> System.out.println(a), system);
// #authors-foreach-println
}
@ -310,7 +305,7 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
b.from(bcast).via(toTags).to(hashtags);
return ClosedShape.getInstance();
}))
.run(mat);
.run(system);
// #graph-dsl-broadcast
}
@ -329,7 +324,7 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
tweets
.buffer(10, OverflowStrategy.dropHead())
.map(t -> slowComputation(t))
.runWith(Sink.ignore(), mat);
.runWith(Sink.ignore(), system);
// #tweets-slow-consumption-dropHead
}
@ -342,7 +337,7 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
final RunnableGraph<CompletionStage<Integer>> counter =
tweets.map(t -> 1).toMat(sumSink, Keep.right());
final CompletionStage<Integer> sum = counter.run(mat);
final CompletionStage<Integer> sum = counter.run(system);
sum.thenAcceptAsync(
c -> System.out.println("Total tweets processed: " + c), system.dispatcher());
@ -350,7 +345,7 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
new Object() {
// #tweets-fold-count-oneline
final CompletionStage<Integer> sum = tweets.map(t -> 1).runWith(sumSink, mat);
final CompletionStage<Integer> sum = tweets.map(t -> 1).runWith(sumSink, system);
// #tweets-fold-count-oneline
};
}
@ -370,9 +365,9 @@ public class TwitterStreamQuickstartDocTest extends AbstractJavaTest {
.toMat(sumSink, Keep.right());
// materialize the stream once in the morning
final CompletionStage<Integer> morningTweetsCount = counterRunnableGraph.run(mat);
final CompletionStage<Integer> morningTweetsCount = counterRunnableGraph.run(system);
// and once in the evening, reusing the blueprint
final CompletionStage<Integer> eveningTweetsCount = counterRunnableGraph.run(mat);
final CompletionStage<Integer> eveningTweetsCount = counterRunnableGraph.run(system);
// #tweets-runnable-flow-materialized-twice
}