Java Code Examples for reactor.core.publisher.MonoProcessor#onNext()

The following examples show how to use reactor.core.publisher.MonoProcessor#onNext() . 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

Source File: EmployeeHotStreamServiceImpl.java From Spring-5.0-Cookbook with MIT License

6 votes

@Override
public void monoProcessorGetEmployee(Integer id) {
	MonoProcessor<Integer> future = MonoProcessor.create();
	Consumer<Integer> checkEmp = (rowId) ->{
		if(employeeDaoImpl.getEmployee(rowId) == null){
			System.out.println("Employee with id: " + rowId + " does not exists.");
		}else{
			System.out.println("Employee with id: " + rowId + " exists.");
		}
	};
	
	Mono<Integer> engine = future
		    .doOnNext(checkEmp)
	     	.doOnSuccess(emp -> {
				System.out.println("Employee's age is " + employeeDaoImpl.getEmployee(emp).getAge());
				System.out.println("Employee's dept is: " + employeeDaoImpl.getEmployee(emp).getDeptId());
			})
	        .doOnTerminate((sup, ex) -> System.out.println("Transaction terminated with error: " +ex.getMessage()))
	        .doOnError(ex -> System.out.println("Error: " + ex.getMessage()));
	
	engine.subscribe(System.out::println);
	
	future.onNext(id);
	int valStream = future.block();
	System.out.println("Employee's ID again is: " + valStream);
}

Example 2

Source File: RSocketPayloadReturnValueHandler.java From spring-analysis-note with MIT License

5 votes

@Override
@SuppressWarnings("unchecked")
protected Mono<Void> handleEncodedContent(
		Flux<DataBuffer> encodedContent, MethodParameter returnType, Message<?> message) {

	MonoProcessor<Flux<Payload>> replyMono = getReplyMono(message);
	Assert.notNull(replyMono, "Missing '" + RESPONSE_HEADER + "'");
	replyMono.onNext(encodedContent.map(PayloadUtils::createPayload));
	replyMono.onComplete();
	return Mono.empty();
}

Example 3

Source File: ErrorsMethodArgumentResolverTests.java From spring-analysis-note with MIT License

5 votes

@Test
public void resolveWithMono() {
	BindingResult bindingResult = createBindingResult(new Foo(), "foo");
	MonoProcessor<BindingResult> monoProcessor = MonoProcessor.create();
	monoProcessor.onNext(bindingResult);
	this.bindingContext.getModel().asMap().put(BindingResult.MODEL_KEY_PREFIX + "foo", monoProcessor);

	MethodParameter parameter = this.testMethod.arg(Errors.class);
	Object actual = this.resolver.resolveArgument(parameter, this.bindingContext, this.exchange)
			.block(Duration.ofMillis(5000));

	assertSame(bindingResult, actual);
}

Example 4

Source File: ErrorsMethodArgumentResolverTests.java From java-technology-stack with MIT License

5 votes

@Test
public void resolveWithMono() {
	BindingResult bindingResult = createBindingResult(new Foo(), "foo");
	MonoProcessor<BindingResult> monoProcessor = MonoProcessor.create();
	monoProcessor.onNext(bindingResult);
	this.bindingContext.getModel().asMap().put(BindingResult.MODEL_KEY_PREFIX + "foo", monoProcessor);

	MethodParameter parameter = this.testMethod.arg(Errors.class);
	Object actual = this.resolver.resolveArgument(parameter, this.bindingContext, this.exchange)
			.block(Duration.ofMillis(5000));

	assertSame(bindingResult, actual);
}

Example 5

Source File: MonoTests.java From reactor-core with Apache License 2.0

5 votes

@Test
public void testMono() throws Exception {
	MonoProcessor<String> promise = MonoProcessor.create();
	promise.onNext("test");
	final CountDownLatch successCountDownLatch = new CountDownLatch(1);
	promise.subscribe(v -> successCountDownLatch.countDown());
	assertThat("Failed", successCountDownLatch.await(10, TimeUnit.SECONDS));
}

Example 6

Source File: FluxTests.java From reactor-core with Apache License 2.0

5 votes

@Test
public void promiseAcceptCountCannotExceedOne() {
	MonoProcessor<Object> deferred = MonoProcessor.create();
	deferred.onNext("alpha");
	try {
		deferred.onNext("bravo");
	}
	catch (Exception e) {
		if(!Exceptions.isCancel(e)) {
			throw e;
		}
	}
	assertEquals(deferred.block(), "alpha");
}

Example 7

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

5 votes

@Test
public void shouldExpireValueOnRacingDisposeAndComplete() {
  for (int i = 0; i < 10000; i++) {
    final int index = i;

    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingResolution()
        .thenAddObserver(consumer)
        .assertPendingSubscribers(1)
        .assertPendingResolution()
        .then(self -> RaceTestUtils.race(() -> self.complete("value" + index), self::dispose))
        .assertDisposeCalled(1)
        .assertExpiredExactly("value" + index)
        .ifResolvedAssertEqual("value" + index)
        .assertIsDisposed();

    if (processor.isError()) {
      Assertions.assertThat(processor.getError())
          .isInstanceOf(CancellationException.class)
          .hasMessage("Disposed");

    } else {
      Assertions.assertThat(processor.peek()).isEqualTo("value" + i);
    }
  }
}

Example 8

Source File: ClientLogicTest.java From sample-webflux-websocket-netty with Apache License 2.0

4 votes

@Test
public void testStart() throws Exception
{
	URI uri = new URI("http://127.0.0.1");
	
	MonoProcessor<WebSocketSession> connectedProcessor = MonoProcessor.create();
	MonoProcessor<WebSocketSession> disconnectedProcessor = MonoProcessor.create();
	
	Mockito
		.when(webSocketClient.execute(Mockito.eq(uri), Mockito.any()))
		.thenReturn(Mono.empty());		
	
	Mockito
		.when(clientWebSocketHandler.connected())
		.thenReturn(Mono.just(sessionHandler).flux());
	
	Mockito
		.when(sessionHandler.connected())
		.thenReturn(connectedProcessor);
	
	Mockito
		.when(sessionHandler.disconnected())
		.thenReturn(disconnectedProcessor);
	
	Mockito
		.when(sessionHandler.receive())
		.thenReturn(Flux.fromArray(new String[] {"A", "B", "C"}).cache());		
	
	ClientLogic clientLogic = new ClientLogic();
	clientLogic.start(webSocketClient, uri, clientWebSocketHandler);			
	
	connectedProcessor.onNext(session);
	disconnectedProcessor.onNext(session);
	
	Mono
		.delay(Duration.ofMillis(50))
		.block();
	
	Mockito
		.verify(sessionHandler, Mockito.times(1))
		.connected();
	
	Mockito
		.verify(sessionHandler, Mockito.times(1))
		.disconnected();
	
	Mockito
		.verify(sessionHandler, Mockito.atLeast(1))
		.receive();
	
	Mockito
		.verify(sessionHandler, Mockito.times(1))
		.send(Mockito.anyString());		
}

Example 9

Source File: ServerLogicTest.java From sample-webflux-websocket-netty with Apache License 2.0

4 votes

@Test
public void testStart()
{
	MonoProcessor<WebSocketSession> connectedProcessor = MonoProcessor.create();
	MonoProcessor<WebSocketSession> disconnectedProcessor = MonoProcessor.create();
	
	Mockito
		.when(serverWebSocketHandler.connected())
		.thenReturn(Mono.just(sessionHandler).flux());
	
	Mockito
		.when(sessionHandler.connected())
		.thenReturn(connectedProcessor);
	
	Mockito
		.when(sessionHandler.disconnected())
		.thenReturn(disconnectedProcessor);
	
	Mockito
		.when(sessionHandler.receive())
		.thenReturn(Flux.fromArray(new String[] {"A", "B", "C"}).cache());
	
	ServerLogic serverLogic = new ServerLogic();
	serverLogic.start(serverWebSocketHandler, 25);
	
	connectedProcessor.onNext(session);
	disconnectedProcessor.onNext(session);
	
	Mono
		.delay(Duration.ofMillis(50))
		.block();
	
	Mockito
		.verify(sessionHandler, Mockito.times(1))
		.connected();
	
	Mockito
		.verify(sessionHandler, Mockito.times(1))
		.disconnected();
	
	Mockito
		.verify(sessionHandler, Mockito.atLeast(1))
		.receive();
	
	Mockito
		.verify(sessionHandler, Mockito.atLeast(1))
		.send(Mockito.anyString());
}

Example 10

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldNotifyAllTheSubscribersUnderRacingBetweenSubscribeAndComplete() {
  for (int i = 0; i < 10000; i++) {
    final String valueToSend = "value" + i;

    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };

    MonoProcessor<String> processor2 = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer2 =
        (v, t) -> {
          if (t != null) {
            processor2.onError(t);
            return;
          }

          processor2.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .then(
            self -> {
              RaceTestUtils.race(() -> self.complete(valueToSend), () -> self.observe(consumer));

              StepVerifier.create(processor)
                  .expectNext(valueToSend)
                  .expectComplete()
                  .verify(Duration.ofMillis(10));
            })
        .assertDisposeCalled(0)
        .assertReceivedExactly(valueToSend)
        .assertNothingExpired()
        .thenAddObserver(consumer2)
        .assertPendingSubscribers(0);

    StepVerifier.create(processor2)
        .expectNext(valueToSend)
        .expectComplete()
        .verify(Duration.ofMillis(10));
  }
}

Example 11

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldNotExpireNewlyResolvedValueIfSubscribeIsRacingWithInvalidate() {
  for (int i = 0; i < 10000; i++) {
    final String valueToSend = "value" + i;
    final String valueToSend2 = "value2" + i;

    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };

    MonoProcessor<String> processor2 = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer2 =
        (v, t) -> {
          if (t != null) {
            processor2.onError(t);
            return;
          }

          processor2.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .thenAddObserver(consumer)
        .then(
            self -> {
              self.complete(valueToSend);

              StepVerifier.create(processor)
                  .expectNext(valueToSend)
                  .expectComplete()
                  .verify(Duration.ofMillis(10));
            })
        .assertReceivedExactly(valueToSend)
        .then(
            self ->
                RaceTestUtils.race(
                    self::invalidate,
                    () -> {
                      self.observe(consumer2);
                      if (!processor2.isTerminated()) {
                        self.complete(valueToSend2);
                      }
                    },
                    Schedulers.parallel()))
        .then(
            self -> {
              if (self.isPending()) {
                self.assertReceivedExactly(valueToSend);
              } else {
                self.assertReceivedExactly(valueToSend, valueToSend2);
              }
            })
        .assertExpiredExactly(valueToSend)
        .assertPendingSubscribers(0)
        .assertDisposeCalled(0)
        .then(
            self ->
                StepVerifier.create(processor2)
                    .expectNextMatches(
                        (v) -> {
                          if (self.subscribers == ResolvingOperator.READY) {
                            return v.equals(valueToSend2);
                          } else {
                            return v.equals(valueToSend);
                          }
                        })
                    .expectComplete()
                    .verify(Duration.ofMillis(100)));
  }
}

Example 12

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldNotExpireNewlyResolvedValueIfBlockIsRacingWithInvalidate() {
  for (int i = 0; i < 10000; i++) {
    final String valueToSend = "value" + i;
    final String valueToSend2 = "value2" + i;

    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .thenAddObserver(consumer)
        .then(
            self -> {
              self.complete(valueToSend);

              StepVerifier.create(processor)
                  .expectNext(valueToSend)
                  .expectComplete()
                  .verify(Duration.ofMillis(10));
            })
        .assertReceivedExactly(valueToSend)
        .then(
            self ->
                RaceTestUtils.race(
                    () ->
                        Assertions.assertThat(self.block(null))
                            .matches((v) -> v.equals(valueToSend) || v.equals(valueToSend2)),
                    () ->
                        RaceTestUtils.race(
                            self::invalidate,
                            () -> {
                              for (; ; ) {
                                if (self.subscribers != ResolvingOperator.READY) {
                                  self.complete(valueToSend2);
                                  break;
                                }
                              }
                            },
                            Schedulers.parallel()),
                    Schedulers.parallel()))
        .then(
            self -> {
              if (self.isPending()) {
                self.assertReceivedExactly(valueToSend);
              } else {
                self.assertReceivedExactly(valueToSend, valueToSend2);
              }
            })
        .assertExpiredExactly(valueToSend)
        .assertPendingSubscribers(0)
        .assertDisposeCalled(0);
  }
}

Example 13

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldEstablishValueOnceInCaseOfRacingBetweenSubscribers() {
  for (int i = 0; i < 10000; i++) {
    final String valueToSend = "value" + i;

    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };

    MonoProcessor<String> processor2 = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer2 =
        (v, t) -> {
          if (t != null) {
            processor2.onError(t);
            return;
          }

          processor2.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .then(
            self ->
                RaceTestUtils.race(() -> self.observe(consumer), () -> self.observe(consumer2)))
        .assertSubscribeCalled(1)
        .assertPendingSubscribers(2)
        .then(self -> self.complete(valueToSend))
        .assertPendingSubscribers(0)
        .assertReceivedExactly(valueToSend)
        .assertNothingExpired()
        .assertDisposeCalled(0)
        .then(
            self -> {
              Assertions.assertThat(processor.isTerminated()).isTrue();
              Assertions.assertThat(processor2.isTerminated()).isTrue();

              Assertions.assertThat(processor.peek()).isEqualTo(valueToSend);
              Assertions.assertThat(processor2.peek()).isEqualTo(valueToSend);

              Assertions.assertThat(self.subscribers).isEqualTo(ResolvingOperator.READY);

              Assertions.assertThat(self.add(consumer)).isEqualTo(ResolvingOperator.READY_STATE);
            });
  }
}

Example 14

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldEstablishValueOnceInCaseOfRacingBetweenSubscribeAndBlock() {
  for (int i = 0; i < 10000; i++) {
    final String valueToSend = "value" + i;

    MonoProcessor<String> processor = MonoProcessor.create();

    MonoProcessor<String> processor2 = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer2 =
        (v, t) -> {
          if (t != null) {
            processor2.onError(t);
            return;
          }

          processor2.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .whenSubscribe(self -> self.complete(valueToSend))
        .then(
            self ->
                RaceTestUtils.race(
                    () -> processor.onNext(self.block(null)), () -> self.observe(consumer2)))
        .assertSubscribeCalled(1)
        .assertPendingSubscribers(0)
        .assertReceivedExactly(valueToSend)
        .assertNothingExpired()
        .assertDisposeCalled(0)
        .then(
            self -> {
              Assertions.assertThat(processor.isTerminated()).isTrue();
              Assertions.assertThat(processor2.isTerminated()).isTrue();

              Assertions.assertThat(processor.peek()).isEqualTo(valueToSend);
              Assertions.assertThat(processor2.peek()).isEqualTo(valueToSend);

              Assertions.assertThat(self.subscribers).isEqualTo(ResolvingOperator.READY);

              Assertions.assertThat(self.add(consumer2)).isEqualTo(ResolvingOperator.READY_STATE);
            });
  }
}

Example 15

Source File: ResolvingOperatorTests.java From rsocket-java with Apache License 2.0

4 votes

@Test
public void shouldExpireValueOnRacingDisposeAndError() {
  Hooks.onErrorDropped(t -> {});
  RuntimeException runtimeException = new RuntimeException("test");
  for (int i = 0; i < 10000; i++) {
    MonoProcessor<String> processor = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer =
        (v, t) -> {
          if (t != null) {
            processor.onError(t);
            return;
          }

          processor.onNext(v);
        };
    MonoProcessor<String> processor2 = MonoProcessor.create();
    BiConsumer<String, Throwable> consumer2 =
        (v, t) -> {
          if (t != null) {
            processor2.onError(t);
            return;
          }

          processor2.onNext(v);
        };

    ResolvingTest.<String>create()
        .assertNothingExpired()
        .assertNothingReceived()
        .assertPendingSubscribers(0)
        .assertPendingResolution()
        .thenAddObserver(consumer)
        .assertSubscribeCalled(1)
        .assertPendingSubscribers(1)
        .then(self -> RaceTestUtils.race(() -> self.terminate(runtimeException), self::dispose))
        .assertPendingSubscribers(0)
        .assertNothingExpired()
        .assertDisposeCalled(1)
        .then(
            self -> {
              Assertions.assertThat(self.subscribers).isEqualTo(ResolvingOperator.TERMINATED);

              Assertions.assertThat(self.add((v, t) -> {}))
                  .isEqualTo(ResolvingOperator.TERMINATED_STATE);
            })
        .thenAddObserver(consumer2);

    StepVerifier.create(processor)
        .expectErrorSatisfies(
            t -> {
              if (t instanceof CancellationException) {
                Assertions.assertThat(t)
                    .isInstanceOf(CancellationException.class)
                    .hasMessage("Disposed");
              } else {
                Assertions.assertThat(t).isInstanceOf(RuntimeException.class).hasMessage("test");
              }
            })
        .verify(Duration.ofMillis(10));

    StepVerifier.create(processor2)
        .expectErrorSatisfies(
            t -> {
              if (t instanceof CancellationException) {
                Assertions.assertThat(t)
                    .isInstanceOf(CancellationException.class)
                    .hasMessage("Disposed");
              } else {
                Assertions.assertThat(t).isInstanceOf(RuntimeException.class).hasMessage("test");
              }
            })
        .verify(Duration.ofMillis(10));

    // no way to guarantee equality because of racing
    //      Assertions.assertThat(processor.getError())
    //                .isEqualTo(processor2.getError());
  }
}