Java Code Examples for reactor.core.publisher.Flux#as()

The following examples show how to use reactor.core.publisher.Flux#as() . These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
@Test
public void errorAfterMultipleItems() throws Exception {
	IllegalStateException error = new IllegalStateException("boo");
	Flux<String> publisher = Flux.generate(() -> 0, (idx , subscriber) -> {
		int i = ++idx;
		subscriber.next(String.valueOf(i));
		if (i == 3) {
			subscriber.error(error);
		}
		return i;
	});
	Mono<Void> completion = publisher.as(this::sendOperator);
	Signal<Void> signal = completion.materialize().block();

	assertNotNull(signal);
	assertSame("Unexpected signal: " + signal, error, signal.getThrowable());

	assertEquals(3, this.writer.items.size());
	assertEquals("1", this.writer.items.get(0));
	assertEquals("2", this.writer.items.get(1));
	assertEquals("3", this.writer.items.get(2));
	assertSame(error, this.writer.error);
}
 
Example 2
@Test
public void errorAfterMultipleItems() throws Exception {
	IllegalStateException error = new IllegalStateException("boo");
	Flux<String> publisher = Flux.generate(() -> 0, (idx , subscriber) -> {
		int i = ++idx;
		subscriber.next(String.valueOf(i));
		if (i == 3) {
			subscriber.error(error);
		}
		return i;
	});
	Mono<Void> completion = publisher.as(this::sendOperator);
	Signal<Void> signal = completion.materialize().block();

	assertNotNull(signal);
	assertSame("Unexpected signal: " + signal, error, signal.getThrowable());

	assertEquals(3, this.writer.items.size());
	assertEquals("1", this.writer.items.get(0));
	assertEquals("2", this.writer.items.get(1));
	assertEquals("3", this.writer.items.get(2));
	assertSame(error, this.writer.error);
}
 
Example 3
@Test
public void manyToOne() {
    ReactorGreeterGrpc.ReactorGreeterStub stub = ReactorGreeterGrpc.newReactorStub(channel);
    Flux<HelloRequest> requestFlux = Flux.just(HelloRequest.getDefaultInstance());

    if (!expectFusion) {
        requestFlux = requestFlux.hide();
    }

    Mono<HelloResponse> resp = requestFlux.as(stub::sayHelloReqStream);

    StepVerifier.Step<HelloResponse> stepVerifier = StepVerifier.create(resp);

    if (expectFusion) {
        stepVerifier = ((StepVerifier.FirstStep<HelloResponse>) stepVerifier).expectFusion();
    }

    stepVerifier
            .verifyErrorMatches(t -> t instanceof StatusRuntimeException && ((StatusRuntimeException)t).getStatus() == Status.INTERNAL);
}
 
Example 4
@Test
public void zeroMessageResponseManyToOne() {
    serverRule.getServiceRegistry().addService(new MissingUnaryResponseService());

    ReactorGreeterGrpc.ReactorGreeterStub stub = ReactorGreeterGrpc.newReactorStub(serverRule.getChannel());
    Flux<HelloRequest> req = Flux.just(
            HelloRequest.newBuilder().setName("a").build(),
            HelloRequest.newBuilder().setName("b").build(),
            HelloRequest.newBuilder().setName("c").build());

    Mono<HelloResponse> resp = req.as(stub::sayHelloReqStream);

    StepVerifier.create(resp).verifyErrorMatches(t ->
            t instanceof StatusRuntimeException &&
            ((StatusRuntimeException) t).getStatus().getCode() == Status.Code.CANCELLED);
}
 
Example 5
@Test
public void reactorZeroMessageResponseManyToOne() {
    serverRule.getServiceRegistry().addService(new ReactorMissingUnaryResponseService());

    ReactorGreeterGrpc.ReactorGreeterStub stub = ReactorGreeterGrpc.newReactorStub(serverRule.getChannel());
    Flux<HelloRequest> req = Flux.just(
            HelloRequest.newBuilder().setName("a").build(),
            HelloRequest.newBuilder().setName("b").build(),
            HelloRequest.newBuilder().setName("c").build());

    Mono<HelloResponse> resp = req.as(stub::sayHelloReqStream);

    StepVerifier.create(resp).verifyErrorMatches(t ->
            t instanceof StatusRuntimeException &&
                    ((StatusRuntimeException) t).getStatus().getCode() == Status.Code.CANCELLED);
}
 
Example 6
@Test
public void manyToOne() throws Exception {
    ReactorGreeterGrpc.ReactorGreeterStub stub = ReactorGreeterGrpc.newReactorStub(channel);
    Flux<HelloRequest> req = Flux.just(
            HelloRequest.newBuilder().setName("a").build(),
            HelloRequest.newBuilder().setName("b").build(),
            HelloRequest.newBuilder().setName("c").build());

    if (!expectFusion) {
        req = req.hide();
    }

    Mono<HelloResponse> resp = req.as(stub::sayHelloReqStream);

    StepVerifier.Step<String> stepVerifier = StepVerifier.create(resp.map(HelloResponse::getMessage));

    if (expectFusion) {
        stepVerifier = ((StepVerifier.FirstStep<String>) stepVerifier).expectFusion();
    }

    stepVerifier
            .expectNext("Hello a and b and c")
            .verifyComplete();
}
 
Example 7
@Test
public void manyToOne() {
    ReactorGreeterGrpc.ReactorGreeterStub stub = ReactorGreeterGrpc.newReactorStub(channel);
    Flux<HelloRequest> req = Flux.just(HelloRequest.getDefaultInstance());
    Mono<HelloResponse> resp = req.as(stub::sayHelloReqStream);

    StepVerifier.create(resp)
            .verifyErrorMatches(t -> t instanceof StatusRuntimeException && ((StatusRuntimeException)t).getStatus().getCode() == Status.Code.INTERNAL);
}
 
Example 8
@Test
public void clientToServerBackpressure() {
    serverRule.getServiceRegistry().addService(service);

    ReactorNumbersGrpc.ReactorNumbersStub stub = ReactorNumbersGrpc.newReactorStub(serverRule.getChannel());

    Flux<NumberProto.Number> reactorRequest = Flux
            .fromIterable(IntStream.range(0, NUMBER_OF_STREAM_ELEMENTS)::iterator)
            .doOnNext(i -> System.out.println(i + " --> "))
            .doOnNext(i -> updateNumberOfWaits(lastValueTime, numberOfWaits))
            .map(BackpressureIntegrationTest::protoNum);

    if (!expectFusion) {
        reactorRequest = reactorRequest.hide();
    }

    Mono<NumberProto.Number> reactorResponse = reactorRequest.as(stub::requestPressure);

    StepVerifier.Step<NumberProto.Number> stepVerifier = StepVerifier.create(reactorResponse);

    if (expectFusion) {
        stepVerifier = ((StepVerifier.FirstStep<NumberProto.Number>) stepVerifier).expectFusion();
    }

    stepVerifier
                .expectNextMatches(v -> v.getNumber(0) == NUMBER_OF_STREAM_ELEMENTS - 1)
                .expectComplete()
                .verify(Duration.ofSeconds(15));

    assertThat(numberOfWaits.get()).isGreaterThan(0L);
}