Java Code Examples for io.github.resilience4j.circuitbreaker.CircuitBreaker#executeSupplier()
The following examples show how to use
io.github.resilience4j.circuitbreaker.CircuitBreaker#executeSupplier() .
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Example 1
Source File: StorageServiceSupport.java From front50 with Apache License 2.0 | 6 votes |
public T findById(String id) throws NotFoundException { CircuitBreaker breaker = circuitBreakerRegistry.circuitBreaker( getClass().getSimpleName() + "-findById", CircuitBreakerConfig.custom() .ignoreException(e -> e instanceof NotFoundException) .build()); Supplier<T> recoverableSupplier = SupplierUtils.recover( () -> service.loadObject(objectType, buildObjectKey(id)), e -> allItemsCache.get().stream() .filter(item -> item.getId().equalsIgnoreCase(id)) .findFirst() .orElseThrow( () -> new NotFoundException( String.format( "No item found in cache with id of %s", id.toLowerCase())))); return breaker.executeSupplier(recoverableSupplier); }
Example 2
Source File: CircuitBreakerMetricsPublisherTest.java From resilience4j with Apache License 2.0 | 5 votes |
@Test public void shouldRemoveAllMetrics() { CircuitBreaker circuitBreaker = givenMetricRegistry("testPrefix", metricRegistry); given(helloWorldService.returnHelloWorld()).willReturn("Hello world"); String value = circuitBreaker.executeSupplier(helloWorldService::returnHelloWorld); assertThat(value).isEqualTo("Hello world"); then(helloWorldService).should(times(1)).returnHelloWorld(); assertThat(metricRegistry.getMetrics()).hasSize(10); circuitBreakerRegistry.remove(circuitBreaker.getName()); assertThat(metricRegistry.getMetrics()).hasSize(0); }
Example 3
Source File: AbstractCircuitBreakerMetricsTest.java From resilience4j with Apache License 2.0 | 5 votes |
@Test public void shouldRegisterMetrics() { CircuitBreaker circuitBreaker = givenMetricRegistry(metricRegistry); given(helloWorldService.returnHelloWorld()).willReturn("Hello world"); String value = circuitBreaker.executeSupplier(helloWorldService::returnHelloWorld); assertThat(value).isEqualTo("Hello world"); then(helloWorldService).should(times(1)).returnHelloWorld(); assertThat(metricRegistry.getMetrics()).hasSize(10); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.state").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.buffered") .getValue()).isEqualTo(1); assertThat(metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.successful") .getValue()).isEqualTo(1); assertThat(metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.failed") .getValue()).isEqualTo(0); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.slow").getValue()) .isEqualTo(0); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.slow_successful") .getValue()).isEqualTo(0); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.slow_failed") .getValue()).isEqualTo(0); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.not_permitted") .getValue()).isEqualTo(0L); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.failure_rate") .getValue()).isEqualTo(-1f); assertThat( metricRegistry.getGauges().get("resilience4j.circuitbreaker.testName.slow_call_rate") .getValue()).isEqualTo(-1f); }
Example 4
Source File: AbstractCircuitBreakerMetricsTest.java From resilience4j with Apache License 2.0 | 5 votes |
@Test public void shouldUseCustomPrefix() throws Throwable { CircuitBreaker circuitBreaker = givenMetricRegistry("testPrefix", metricRegistry); given(helloWorldService.returnHelloWorld()).willReturn("Hello world"); String value = circuitBreaker.executeSupplier(helloWorldService::returnHelloWorld); assertThat(value).isEqualTo("Hello world"); then(helloWorldService).should(times(1)).returnHelloWorld(); assertThat(metricRegistry.getMetrics()).hasSize(10); assertThat(metricRegistry.getGauges().get("testPrefix.testName.state").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("testPrefix.testName.buffered").getValue()) .isEqualTo(1); assertThat(metricRegistry.getGauges().get("testPrefix.testName.successful").getValue()) .isEqualTo(1); assertThat(metricRegistry.getGauges().get("testPrefix.testName.failed").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("testPrefix.testName.slow").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("testPrefix.testName.slow_successful").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("testPrefix.testName.slow_failed").getValue()) .isEqualTo(0); assertThat(metricRegistry.getGauges().get("testPrefix.testName.not_permitted").getValue()) .isEqualTo(0L); assertThat(metricRegistry.getGauges().get("testPrefix.testName.failure_rate").getValue()) .isEqualTo(-1f); assertThat(metricRegistry.getGauges().get("testPrefix.testName.slow_call_rate").getValue()) .isEqualTo(-1f); }