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#19440 replace Scala Future usage with CompletionStage in javadsl

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This entails:

  * adding akka.pattern.PatternCS.* to enable ask etc. with
    CompletionStage
  * changing RequestContext to offer an ExecutionContextExecutor for the
    CompletionStage.*Async combinators
  * splitting up akka.stream.Queue for JavaDSL consistency
This commit is contained in:
Roland Kuhn 2016-01-21 16:37:26 +01:00
parent 396f4370e9
commit 4c72495581
118 changed files with 1646 additions and 1379 deletions
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18
akka-docs/rst/java/code/docs/stream/RateTransformationDocTest.java
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@ -7,6 +7,7 @@ package docs.stream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;
import java.util.stream.DoubleStream;
@ -72,13 +73,12 @@ public class RateTransformationDocTest {
});
//#conflate-summarize
final Future<List<Tuple3<Double, Double, Integer>>> fut = Source.repeat(0).map(i -> r.nextGaussian())
final CompletionStage<List<Tuple3<Double, Double, Integer>>> fut = Source.repeat(0).map(i -> r.nextGaussian())
.via(statsFlow)
.grouped(10)
.runWith(Sink.head(), mat);
final Duration timeout = Duration.create(100, TimeUnit.MILLISECONDS);
Await.result(fut, timeout);
fut.toCompletableFuture().get(1, TimeUnit.SECONDS);
}
@Test
@ -97,12 +97,11 @@ public class RateTransformationDocTest {
.mapConcat(d -> d);
//#conflate-sample
final Future<Double> fut = Source.from(new ArrayList<Double>(Collections.nCopies(1000, 1.0)))
final CompletionStage<Double> fut = Source.from(new ArrayList<Double>(Collections.nCopies(1000, 1.0)))
.via(sampleFlow)
.runWith(Sink.fold(0.0, (agg, next) -> agg + next), mat);
final Duration timeout = Duration.create(1, TimeUnit.SECONDS);
final Double count = Await.result(fut, timeout);
final Double count = fut.toCompletableFuture().get(1, TimeUnit.SECONDS);
}
@Test
@ -112,17 +111,16 @@ public class RateTransformationDocTest {
.expand(in -> Stream.iterate(in, i -> i).iterator());
//#expand-last
final Pair<TestPublisher.Probe<Double>, Future<List<Double>>> probeFut = TestSource.<Double> probe(system)
final Pair<TestPublisher.Probe<Double>, CompletionStage<List<Double>>> probeFut = TestSource.<Double> probe(system)
.via(lastFlow)
.grouped(10)
.toMat(Sink.head(), Keep.both())
.run(mat);
final TestPublisher.Probe<Double> probe = probeFut.first();
final Future<List<Double>> fut = probeFut.second();
final CompletionStage<List<Double>> fut = probeFut.second();
probe.sendNext(1.0);
final Duration timeout = Duration.create(1, TimeUnit.SECONDS);
final List<Double> expanded = Await.result(fut, timeout);
final List<Double> expanded = fut.toCompletableFuture().get(1, TimeUnit.SECONDS);
assertEquals(expanded.size(), 10);
assertEquals(expanded.stream().mapToDouble(d -> d).sum(), 10, 0.1);
}