Examples with TimeLimiter io.github.resilience4j.timelimiter.TimeLimiter used on opensource projects

Example 1 with TimeLimiter

use of io.github.resilience4j.timelimiter.TimeLimiter in project resilience4j by resilience4j.

the class DecoratorsTest method shouldThrowTimeoutExceptionAndPropagateMDCContext.

@Test
public void shouldThrowTimeoutExceptionAndPropagateMDCContext() {
    TimeLimiter timeLimiter = TimeLimiter.of("helloBackend", TimeLimiterConfig.custom().timeoutDuration(Duration.ofMillis(100)).build());
    CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults("helloBackend");
    ThreadPoolBulkhead bulkhead = ThreadPoolBulkhead.ofDefaults("helloBackend");
    MDC.put("key", "ValueShouldPropagateThreadBoundary");
    MDC.put("key2", "value2");
    final Map<String, String> contextMap = MDC.getCopyOfContextMap();
    ContextAwareScheduledThreadPoolExecutor scheduledThreadPool = ContextAwareScheduledThreadPoolExecutor.newScheduledThreadPool().corePoolSize(1).build();
    CompletionStage<String> completionStage = Decorators.ofCallable(() -> {
        assertThat(Thread.currentThread().getName()).isEqualTo("bulkhead-helloBackend-1");
        Thread.sleep(1000);
        return "Bla";
    }).withThreadPoolBulkhead(bulkhead).withTimeLimiter(timeLimiter, scheduledThreadPool).withCircuitBreaker(circuitBreaker).get();
    final CompletableFuture<String> completableFuture = completionStage.toCompletableFuture().exceptionally(throwable -> {
        if (throwable != null) {
            assertThat(Thread.currentThread().getName()).isEqualTo("ContextAwareScheduledThreadPool-1");
            assertThat(MDC.getCopyOfContextMap()).hasSize(2).containsExactlyEntriesOf(contextMap);
            return MDC.getCopyOfContextMap().get("key");
        }
        return null;
    });
    waitAtMost(2, TimeUnit.SECONDS).until(matches(() -> assertThat(completableFuture).isCompletedWithValue("ValueShouldPropagateThreadBoundary")));
    CircuitBreaker.Metrics metrics = circuitBreaker.getMetrics();
    assertThat(metrics.getNumberOfBufferedCalls()).isEqualTo(1);
    assertThat(metrics.getNumberOfFailedCalls()).isEqualTo(1);
}

Example 2 with TimeLimiter

use of io.github.resilience4j.timelimiter.TimeLimiter in project resilience4j by resilience4j.

the class DecoratorsTest method testDecorateCompletionStageWithTimeoutExceptionFallback.

@Test
public void testDecorateCompletionStageWithTimeoutExceptionFallback() throws ExecutionException, InterruptedException {
    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).withFallback(TimeoutException.class, (e) -> "Fallback").get();
    String result = completionStage.toCompletableFuture().get();
    assertThat(result).isEqualTo("Fallback");
    CircuitBreaker.Metrics metrics = circuitBreaker.getMetrics();
    assertThat(metrics.getNumberOfFailedCalls()).isEqualTo(1);
}

Example 3 with TimeLimiter

use of io.github.resilience4j.timelimiter.TimeLimiter in project resilience4j by resilience4j.

the class AbstractTimeLimiterMetrics method registerMetrics.

protected void registerMetrics(MeterRegistry meterRegistry, TimeLimiter timeLimiter, List<Tag> customTags) {
    // Remove previous meters before register
    removeMetrics(meterRegistry, timeLimiter.getName());
    Counter successes = Counter.builder(names.getCallsMetricName()).description("The number of successful calls").tag(TagNames.NAME, timeLimiter.getName()).tag(TagNames.KIND, KIND_SUCCESSFUL).tags(customTags).register(meterRegistry);
    Counter failures = Counter.builder(names.getCallsMetricName()).description("The number of failed calls").tag(TagNames.NAME, timeLimiter.getName()).tag(TagNames.KIND, KIND_FAILED).tags(customTags).register(meterRegistry);
    Counter timeouts = Counter.builder(names.getCallsMetricName()).description("The number of timed out calls").tag(TagNames.NAME, timeLimiter.getName()).tag(TagNames.KIND, KIND_TIMEOUT).tags(customTags).register(meterRegistry);
    timeLimiter.getEventPublisher().onSuccess(event -> successes.increment()).onError(event -> failures.increment()).onTimeout(event -> timeouts.increment());
    List<Meter.Id> ids = Arrays.asList(successes.getId(), failures.getId(), timeouts.getId());
    meterIdMap.put(timeLimiter.getName(), new HashSet<>(ids));
}

Example 4 with TimeLimiter

use of io.github.resilience4j.timelimiter.TimeLimiter in project resilience4j by resilience4j.

the class TimeLimiterMetricsTest method shouldRecordSuccesses.

@Test
public void shouldRecordSuccesses() {
    TimeLimiter timeLimiter = TimeLimiter.of(TimeLimiterConfig.ofDefaults());
    metricRegistry.registerAll(TimeLimiterMetrics.ofTimeLimiter(timeLimiter));
    timeLimiter.onSuccess();
    timeLimiter.onSuccess();
    assertThat(metricRegistry).hasMetricsSize(3);
    assertThat(metricRegistry).counter(DEFAULT_PREFIX + SUCCESSFUL).hasValue(2L);
    assertThat(metricRegistry).counter(DEFAULT_PREFIX + FAILED).hasValue(0L);
    assertThat(metricRegistry).counter(DEFAULT_PREFIX + TIMEOUT).hasValue(0L);
}

Example 5 with TimeLimiter

use of io.github.resilience4j.timelimiter.TimeLimiter in project resilience4j by resilience4j.

the class TimeLimiterMetricsTest method given.

@Override
protected TimeLimiter given(String prefix, MetricRegistry metricRegistry) {
    TimeLimiterRegistry timeLimiterRegistry = TimeLimiterRegistry.ofDefaults();
    TimeLimiter timeLimiter = timeLimiterRegistry.timeLimiter("testLimit");
    metricRegistry.registerAll(TimeLimiterMetrics.ofTimeLimiterRegistry(prefix, timeLimiterRegistry));
    return timeLimiter;
}