io.github.resilience4j.bulkhead.BulkheadFullException Java Examples

The following examples show how to use io.github.resilience4j.bulkhead.BulkheadFullException. 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: DecoratorsTest.java    From resilience4j with Apache License 2.0 6 votes vote down vote up 
@Test
public void testDecorateRunnableWithBulkheadFullExceptionFallback() throws ExecutionException, InterruptedException {
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    ThreadPoolBulkhead bulkheadMock = spy(bulkhead);
    given(bulkheadMock.submit(any(Callable.class))).willThrow(BulkheadFullException.createBulkheadFullException(bulkhead));

    CompletionStage<Void> completionStage = Decorators
        .ofRunnable(() -> helloWorldService.sayHelloWorld())
        .withThreadPoolBulkhead(bulkheadMock)
        .withFallback(BulkheadFullException.class, (e) -> {
            helloWorldService.sayHelloWorld();
            return null;
        })
        .get();

    completionStage.toCompletableFuture().get();

    then(helloWorldService).should(times(1)).sayHelloWorld();
}
Example #2
Source File: DecoratorsTest.java    From resilience4j with Apache License 2.0 6 votes vote down vote up 
@Test
public void testDecorateCallableWithBulkheadFullExceptionFallback() throws ExecutionException, InterruptedException {
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    ThreadPoolBulkhead bulkheadMock = spy(bulkhead);
    given(bulkheadMock.submit(any(Callable.class))).willThrow(BulkheadFullException.createBulkheadFullException(bulkhead));

    CompletionStage<String> completionStage = Decorators
        .ofCallable(() -> helloWorldService.returnHelloWorldWithException())
        .withThreadPoolBulkhead(bulkheadMock)
        .withFallback(BulkheadFullException.class, (e) -> "Fallback")
        .get();

    String result = completionStage.toCompletableFuture().get();

    assertThat(result).isEqualTo("Fallback");
}
Example #3
Source File: DecoratorsTest.java    From resilience4j with Apache License 2.0 6 votes vote down vote up 
@Test
public void testDecorateSupplierWithBulkheadFullExceptionFallback() throws ExecutionException, InterruptedException {
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    ThreadPoolBulkhead bulkheadMock = spy(bulkhead);
    given(bulkheadMock.submit(any(Callable.class))).willThrow(BulkheadFullException.createBulkheadFullException(bulkhead));

    CompletionStage<String> completionStage = Decorators
        .ofSupplier(() -> helloWorldService.returnHelloWorld())
        .withThreadPoolBulkhead(bulkheadMock)
        .withFallback(BulkheadFullException.class, (e) -> "Fallback")
        .get();

    String result = completionStage.toCompletableFuture().get();

    assertThat(result).isEqualTo("Fallback");
}
Example #4
Source File: FixedThreadPoolBulkhead.java    From resilience4j with Apache License 2.0 6 votes vote down vote up 
/**
 * {@inheritDoc}
 */
@Override
public CompletableFuture<Void> submit(Runnable runnable) {
    final CompletableFuture<Void> promise = new CompletableFuture<>();
    try {
        CompletableFuture.runAsync(ContextPropagator.decorateRunnable(config.getContextPropagator(),() -> {
            try {
                publishBulkheadEvent(() -> new BulkheadOnCallPermittedEvent(name));
                runnable.run();
            } catch (Exception e) {
                throw new CompletionException(e);
            }
        }), executorService).whenComplete((result, throwable) -> {
            publishBulkheadEvent(() -> new BulkheadOnCallFinishedEvent(name));
            if (throwable != null) {
                promise.completeExceptionally(throwable);
            } else {
                promise.complete(result);
            }
        });
    } catch (RejectedExecutionException rejected) {
        publishBulkheadEvent(() -> new BulkheadOnCallRejectedEvent(name));
        throw BulkheadFullException.createBulkheadFullException(this);
    }
    return promise;
}
Example #5
Source File: FlowableBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Flowable.fromArray("Event 1", "Event 2")
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertSubscribed()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    then(bulkhead).should(never()).onComplete();
}
Example #6
Source File: BulkheadTransformer.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
public Upstream<T> apply(Upstream<? extends T> upstream) throws Exception {
    return down -> {
        if (bulkhead.tryAcquirePermission()) {
            // do not allow permits to leak
            upstream.connect(new Downstream<T>() {

                @Override
                public void success(T value) {
                    bulkhead.onComplete();
                    down.success(value);
                }

                @Override
                public void error(Throwable throwable) {
                    bulkhead.onComplete();
                    handleRecovery(down, throwable);
                }

                @Override
                public void complete() {
                    bulkhead.releasePermission();
                    down.complete();
                }
            });
        } else {
            Throwable t = BulkheadFullException.createBulkheadFullException(bulkhead);
            handleRecovery(down, t);
        }
    };
}
Example #7
Source File: FlowableBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(Subscriber<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadSubscriber(downstream));
    } else {
        downstream.onSubscribe(EmptySubscription.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #8
Source File: SingleBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(SingleObserver<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadSingleObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #9
Source File: CompletableBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(CompletableObserver downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadCompletableObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #10
Source File: MaybeBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(MaybeObserver<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadMaybeObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #11
Source File: ObserverBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(Observer<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #12
Source File: CompletableBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Completable.complete()
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertSubscribed()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    then(bulkhead).should(never()).onComplete();
}
Example #13
Source File: FluxBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitBulkheadFullExceptionEvenWhenErrorNotOnSubscribe() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    StepVerifier.create(
        Flux.error(new IOException("BAM!"), true)
            .transformDeferred(BulkheadOperator.of(bulkhead)))
        .expectSubscription()
        .expectError(BulkheadFullException.class)
        .verify(Duration.ofSeconds(1));

    verify(bulkhead, never()).onComplete();
}
Example #14
Source File: SingleBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Single.just(1)
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertSubscribed()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    then(bulkhead).should(never()).onComplete();
}
Example #15
Source File: MaybeBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Maybe.just(1)
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertSubscribed()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    verify(bulkhead, never()).onComplete();
}
Example #16
Source File: ObserverBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Observable.fromArray("Event 1", "Event 2")
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertSubscribed()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    then(bulkhead).should(never()).onComplete();
}
Example #17
Source File: FluxBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
public void subscribe(CoreSubscriber<? super T> actual) {
    if (bulkhead.tryAcquirePermission()) {
        source.subscribe(new BulkheadSubscriber<>(bulkhead, actual, false));
    } else {
        Operators.error(actual, BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #18
Source File: MonoBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
public void subscribe(CoreSubscriber<? super T> actual) {
    if (bulkhead.tryAcquirePermission()) {
        source.subscribe(new BulkheadSubscriber<>(bulkhead, actual, true));
    } else {
        Operators.error(actual, BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #19
Source File: MonoBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    StepVerifier.create(
        Mono.just("Event")
            .transformDeferred(BulkheadOperator.of(bulkhead)))
        .expectSubscription()
        .expectError(BulkheadFullException.class)
        .verify(Duration.ofSeconds(1));

    verify(bulkhead, never()).onComplete();
}
Example #20
Source File: MonoBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitBulkheadFullExceptionEvenWhenErrorDuringSubscribe() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    StepVerifier.create(
        Mono.error(new IOException("BAM!"))
            .transformDeferred(BulkheadOperator.of(bulkhead)))
        .expectSubscription()
        .expectError(BulkheadFullException.class)
        .verify(Duration.ofSeconds(1));
}
Example #21
Source File: FluxBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);
    bulkhead.tryAcquirePermission();

    StepVerifier.create(
        Flux.just("Event")
            .transformDeferred(BulkheadOperator.of(bulkhead)))
        .expectSubscription()
        .expectError(BulkheadFullException.class)
        .verify(Duration.ofSeconds(1));

    verify(bulkhead, never()).onComplete();
}
Example #22
Source File: FluxBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitBulkheadFullExceptionEvenWhenErrorDuringSubscribe() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    StepVerifier.create(
        Flux.error(new IOException("BAM!"))
            .transformDeferred(BulkheadOperator.of(bulkhead)))
        .expectSubscription()
        .expectError(BulkheadFullException.class)
        .verify(Duration.ofSeconds(1));

    verify(bulkhead, never()).onComplete();
}
Example #23
Source File: Decorators.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
private Supplier<CompletionStage<Void>> getCompletionStageSupplier(
    ThreadPoolBulkhead threadPoolBulkhead) {
    return () -> {
        try {
            return threadPoolBulkhead.executeRunnable(runnable);
        } catch (BulkheadFullException ex) {
            CompletableFuture<Void> future = new CompletableFuture<>();
            future.completeExceptionally(ex);
            return future;
        }
    };
}
Example #24
Source File: SemaphoreBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
/**
 * {@inheritDoc}
 */
@Override
public void acquirePermission() {
    boolean permitted = tryAcquirePermission();
    if (permitted) {
        return;
    }
    if (Thread.currentThread().isInterrupted()) {
        throw new AcquirePermissionCancelledException();
    }
    throw BulkheadFullException.createBulkheadFullException(this);
}
Example #25
Source File: FlowableBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(Subscriber<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadSubscriber(downstream));
    } else {
        downstream.onSubscribe(EmptySubscription.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #26
Source File: SingleBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(SingleObserver<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadSingleObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #27
Source File: CompletableBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(CompletableObserver downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadCompletableObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #28
Source File: MaybeBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(MaybeObserver<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadMaybeObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #29
Source File: ObserverBulkhead.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Override
protected void subscribeActual(Observer<? super T> downstream) {
    if (bulkhead.tryAcquirePermission()) {
        upstream.subscribe(new BulkheadObserver(downstream));
    } else {
        downstream.onSubscribe(EmptyDisposable.INSTANCE);
        downstream.onError(BulkheadFullException.createBulkheadFullException(bulkhead));
    }
}
Example #30
Source File: CompletableBulkheadTest.java    From resilience4j with Apache License 2.0 5 votes vote down vote up 
@Test
public void shouldEmitErrorWithBulkheadFullException() {
    given(bulkhead.tryAcquirePermission()).willReturn(false);

    Completable.complete()
        .compose(BulkheadOperator.of(bulkhead))
        .test()
        .assertError(BulkheadFullException.class)
        .assertNotComplete();

    then(bulkhead).should(never()).onComplete();
}