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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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15
akka-docs/src/test/java/jdocs/stream/HubDocTest.java
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@ -26,19 +26,16 @@ import java.util.function.ToLongBiFunction;
public class HubDocTest extends AbstractJavaTest {
static ActorSystem system;
static Materializer materializer;
@BeforeClass
public static void setup() {
system = ActorSystem.create("GraphDSLDocTest");
materializer = ActorMaterializer.create(system);
}
@AfterClass
public static void tearDown() {
TestKit.shutdownActorSystem(system);
system = null;
materializer = null;
}
@Test
@ -55,10 +52,10 @@ public class HubDocTest extends AbstractJavaTest {
// now have access to feed elements into it. This Sink can be materialized
// any number of times, and every element that enters the Sink will
// be consumed by our consumer.
Sink<String, NotUsed> toConsumer = runnableGraph.run(materializer);
Sink<String, NotUsed> toConsumer = runnableGraph.run(system);
Source.single("Hello!").runWith(toConsumer, materializer);
Source.single("Hub!").runWith(toConsumer, materializer);
Source.single("Hello!").runWith(toConsumer, system);
Source.single("Hub!").runWith(toConsumer, system);
// #merge-hub
}
@ -99,7 +96,7 @@ public class HubDocTest extends AbstractJavaTest {
Pair<Sink<String, NotUsed>, Source<String, NotUsed>> sinkAndSource =
MergeHub.of(String.class, 16)
.toMat(BroadcastHub.of(String.class, 256), Keep.both())
.run(materializer);
.run(system);
Sink<String, NotUsed> sink = sinkAndSource.first();
Source<String, NotUsed> source = sinkAndSource.second();
@ -109,7 +106,7 @@ public class HubDocTest extends AbstractJavaTest {
// Ensure that the Broadcast output is dropped if there are no listening parties.
// If this dropping Sink is not attached, then the broadcast hub will not drop any
// elements itself when there are no subscribers, backpressuring the producer instead.
source.runWith(Sink.ignore(), materializer);
source.runWith(Sink.ignore(), system);
// #pub-sub-2
// #pub-sub-3
@ -127,7 +124,7 @@ public class HubDocTest extends AbstractJavaTest {
Source.repeat("Hello World!")
.viaMat(busFlow, Keep.right())
.to(Sink.foreach(System.out::println))
.run(materializer);
.run(system);
// Shut down externally
killSwitch.shutdown();