Beispiel #1
0
  @Test
  public void mustBeAbleToUseFlatMapMerge() throws Exception {
    final JavaTestKit probe = new JavaTestKit(system);
    final Iterable<Integer> input1 = Arrays.asList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);
    final Iterable<Integer> input2 = Arrays.asList(10, 11, 12, 13, 14, 15, 16, 17, 18, 19);
    final Iterable<Integer> input3 = Arrays.asList(20, 21, 22, 23, 24, 25, 26, 27, 28, 29);
    final Iterable<Integer> input4 = Arrays.asList(30, 31, 32, 33, 34, 35, 36, 37, 38, 39);

    final List<Source<Integer, NotUsed>> mainInputs = new ArrayList<Source<Integer, NotUsed>>();
    mainInputs.add(Source.from(input1));
    mainInputs.add(Source.from(input2));
    mainInputs.add(Source.from(input3));
    mainInputs.add(Source.from(input4));

    CompletionStage<List<Integer>> future =
        Source.from(mainInputs)
            .flatMapMerge(3, ConstantFun.<Source<Integer, NotUsed>>javaIdentityFunction())
            .grouped(60)
            .runWith(Sink.<List<Integer>>head(), materializer);

    List<Integer> result = future.toCompletableFuture().get(3, TimeUnit.SECONDS);
    final Set<Integer> set = new HashSet<Integer>();
    for (Integer i : result) {
      set.add(i);
    }
    final Set<Integer> expected = new HashSet<Integer>();
    for (int i = 0; i < 40; ++i) {
      expected.add(i);
    }

    assertEquals(expected, set);
  }
Beispiel #2
0
  @Test
  public void mustBeAbleToUseConcatAllWithSources() throws Exception {
    final JavaTestKit probe = new JavaTestKit(system);
    final Iterable<Integer> input1 = Arrays.asList(1, 2, 3);
    final Iterable<Integer> input2 = Arrays.asList(4, 5);

    final List<Source<Integer, NotUsed>> mainInputs = new ArrayList<Source<Integer, NotUsed>>();
    mainInputs.add(Source.from(input1));
    mainInputs.add(Source.from(input2));

    CompletionStage<List<Integer>> future =
        Source.from(mainInputs)
            .<Integer, NotUsed>flatMapConcat(
                ConstantFun.<Source<Integer, NotUsed>>javaIdentityFunction())
            .grouped(6)
            .runWith(Sink.<List<Integer>>head(), materializer);

    List<Integer> result = future.toCompletableFuture().get(3, TimeUnit.SECONDS);

    assertEquals(Arrays.asList(1, 2, 3, 4, 5), result);
  }