Examples with ThreadPoolBulkhead io.github.resilience4j.bulkhead.ThreadPoolBulkhead used on opensource projects

Example 11 with ThreadPoolBulkhead

use of io.github.resilience4j.bulkhead.ThreadPoolBulkhead in project resilience4j by resilience4j.

the class DecoratorsTest method testDecorateCompletionStageWithCallNotPermittedExceptionFallback.

@Test
public void testDecorateCompletionStageWithCallNotPermittedExceptionFallback() throws ExecutionException, InterruptedException {
    CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults("helloBackend");
    circuitBreaker.transitionToOpenState();
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    CompletionStage<String> completionStage = Decorators.ofSupplier(() -> helloWorldService.returnHelloWorld()).withThreadPoolBulkhead(bulkhead).withCircuitBreaker(circuitBreaker).withFallback(CallNotPermittedException.class, (e) -> "Fallback").get();
    String result = completionStage.toCompletableFuture().get();
    assertThat(result).isEqualTo("Fallback");
    CircuitBreaker.Metrics metrics = circuitBreaker.getMetrics();
    assertThat(metrics.getNumberOfNotPermittedCalls()).isEqualTo(1);
}

Example 12 with ThreadPoolBulkhead

use of io.github.resilience4j.bulkhead.ThreadPoolBulkhead in project resilience4j by resilience4j.

the class DecoratorsTest method shouldThrowTimeoutException.

@Test
public void shouldThrowTimeoutException() {
    TimeLimiter timeLimiter = TimeLimiter.of("helloBackend", TimeLimiterConfig.custom().timeoutDuration(Duration.ofMillis(100)).build());
    CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults("helloBackend");
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    CompletionStage<String> completionStage = Decorators.ofCallable(() -> {
        Thread.sleep(1000);
        return "Bla";
    }).withThreadPoolBulkhead(bulkhead).withTimeLimiter(timeLimiter, Executors.newSingleThreadScheduledExecutor()).withCircuitBreaker(circuitBreaker).get();
    assertThatThrownBy(() -> completionStage.toCompletableFuture().get()).hasCauseInstanceOf(TimeoutException.class);
    CircuitBreaker.Metrics metrics = circuitBreaker.getMetrics();
    assertThat(metrics.getNumberOfBufferedCalls()).isEqualTo(1);
    assertThat(metrics.getNumberOfFailedCalls()).isEqualTo(1);
}

Example 13 with ThreadPoolBulkhead

use of io.github.resilience4j.bulkhead.ThreadPoolBulkhead in project resilience4j by resilience4j.

the class FixedThreadPoolBulkheadTest method shouldCreateThreadPoolBulkheadRegistryWithRegistryStore.

@Test
public void shouldCreateThreadPoolBulkheadRegistryWithRegistryStore() {
    RegistryEventConsumer<ThreadPoolBulkhead> registryEventConsumer = getNoOpsRegistryEventConsumer();
    List<RegistryEventConsumer<ThreadPoolBulkhead>> registryEventConsumers = new ArrayList<>();
    registryEventConsumers.add(registryEventConsumer);
    Map<String, ThreadPoolBulkheadConfig> configs = new HashMap<>();
    final ThreadPoolBulkheadConfig defaultConfig = ThreadPoolBulkheadConfig.ofDefaults();
    configs.put("default", defaultConfig);
    final InMemoryThreadPoolBulkheadRegistry inMemoryThreadPoolBulkheadRegistry = new InMemoryThreadPoolBulkheadRegistry(configs, registryEventConsumers, Map.of("Tag1", "Tag1Value"), new InMemoryRegistryStore<>());
    AssertionsForClassTypes.assertThat(inMemoryThreadPoolBulkheadRegistry).isNotNull();
    AssertionsForClassTypes.assertThat(inMemoryThreadPoolBulkheadRegistry.getDefaultConfig()).isEqualTo(defaultConfig);
    AssertionsForClassTypes.assertThat(inMemoryThreadPoolBulkheadRegistry.getConfiguration("testNotFound")).isEmpty();
    inMemoryThreadPoolBulkheadRegistry.addConfiguration("testConfig", defaultConfig);
    AssertionsForClassTypes.assertThat(inMemoryThreadPoolBulkheadRegistry.getConfiguration("testConfig")).isNotNull();
}

Example 14 with ThreadPoolBulkhead

use of io.github.resilience4j.bulkhead.ThreadPoolBulkhead in project resilience4j by resilience4j.

the class FixedThreadPoolBulkheadTest method testCreateWithDefaults.

@Test
public void testCreateWithDefaults() {
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("test");
    assertThat(bulkhead).isNotNull();
    assertThat(bulkhead.getBulkheadConfig()).isNotNull();
    assertThat(bulkhead.getBulkheadConfig().getMaxThreadPoolSize()).isEqualTo(ThreadPoolBulkheadConfig.DEFAULT_MAX_THREAD_POOL_SIZE);
    assertThat(bulkhead.getBulkheadConfig().getCoreThreadPoolSize()).isEqualTo(ThreadPoolBulkheadConfig.DEFAULT_CORE_THREAD_POOL_SIZE);
    assertThat(bulkhead.getBulkheadConfig().getQueueCapacity()).isEqualTo(ThreadPoolBulkheadConfig.DEFAULT_QUEUE_CAPACITY);
}

Example 15 with ThreadPoolBulkhead

use of io.github.resilience4j.bulkhead.ThreadPoolBulkhead in project resilience4j by resilience4j.

the class TaggedThreadPoolBulkheadMetricsPublisherTest method shouldReplaceMetrics.

@Test
public void shouldReplaceMetrics() {
    Collection<Gauge> gauges = meterRegistry.get(DEFAULT_MAX_THREAD_POOL_SIZE_METRIC_NAME).gauges();
    Optional<Gauge> successful = findMeterByNamesTag(gauges, bulkhead.getName());
    assertThat(successful).isPresent();
    assertThat(successful.get().value()).isEqualTo(bulkhead.getMetrics().getMaximumThreadPoolSize());
    ThreadPoolBulkhead newBulkhead = ThreadPoolBulkhead.of(bulkhead.getName(), ThreadPoolBulkheadConfig.custom().maxThreadPoolSize(Runtime.getRuntime().availableProcessors() + 1).build());
    bulkheadRegistry.replace(bulkhead.getName(), newBulkhead);
    gauges = meterRegistry.get(DEFAULT_MAX_THREAD_POOL_SIZE_METRIC_NAME).gauges();
    successful = findMeterByNamesTag(gauges, newBulkhead.getName());
    assertThat(successful).isPresent();
    assertThat(successful.get().value()).isEqualTo(newBulkhead.getMetrics().getMaximumThreadPoolSize());
}