Examples with CircuitBreakerEventDTO io.github.resilience4j.circuitbreaker.monitoring.endpoint.CircuitBreakerEventDTO used on opensource projects

Example 1 with CircuitBreakerEventDTO

use of io.github.resilience4j.circuitbreaker.monitoring.endpoint.CircuitBreakerEventDTO in project resilience4j by resilience4j.

the class CircuitBreakerEventEmitterTest method testEmitter.

@Test
public void testEmitter() throws IOException {
    CircuitBreakerConfig config = CircuitBreakerConfig.custom().ringBufferSizeInClosedState(3).ringBufferSizeInHalfOpenState(2).failureRateThreshold(66).waitDurationInOpenState(Duration.ofSeconds(1)).recordFailure(e -> !(e instanceof IllegalArgumentException)).build();
    CircuitBreaker circuitBreaker = CircuitBreakerRegistry.ofDefaults().circuitBreaker("test", config);
    Runnable run = decorateRunnable(circuitBreaker, () -> System.out.println("."));
    Runnable fail = decorateRunnable(circuitBreaker, () -> {
        throw new ConcurrentModificationException();
    });
    Runnable ignore = decorateRunnable(circuitBreaker, () -> {
        throw new IllegalArgumentException();
    });
    SseEmitter sseEmitter = createSseEmitter(ReactorAdapter.toFlux(circuitBreaker.getEventPublisher()));
    TestHandler handler = new TestHandler();
    sseEmitter.initialize(handler);
    exec(run, 2);
    exec(ignore, 1);
    exec(fail, 3);
    circuitBreaker.reset();
    exec(run, 2);
    circuitBreaker.reset();
    sseEmitter.complete();
    assert handler.isCompleted;
    exec(run, 2);
    List<CircuitBreakerEvent.Type> events = handler.events.stream().map(CircuitBreakerEventDTO::getType).collect(toList());
    then(events).containsExactly(SUCCESS, SUCCESS, IGNORED_ERROR, ERROR, ERROR, STATE_TRANSITION, NOT_PERMITTED, STATE_TRANSITION, RESET, SUCCESS, SUCCESS, RESET);
}