Examples with CollectorRegistry io.prometheus.client.CollectorRegistry used on opensource projects

Example 11 with CollectorRegistry

use of io.prometheus.client.CollectorRegistry in project resilience4j by resilience4j.

the class CircuitBreakerExportsTest method testExportsCircuitBreakerMetrics.

@Test
public void testExportsCircuitBreakerMetrics() {
    // Given
    final CollectorRegistry registry = new CollectorRegistry();
    final CircuitBreaker circuitBreaker = CircuitBreaker.ofDefaults("foo");
    CircuitBreakerExports.ofIterable("boo_circuit_breaker", singletonList(circuitBreaker)).register(registry);
    final Supplier<Map<String, Double>> values = () -> HashSet.of("successful", "failed", "not_permitted", "buffered", "buffered_max").map(callType -> Tuple.of(callType, registry.getSampleValue("boo_circuit_breaker_calls", new String[] { "name", "call_result" }, new String[] { "foo", callType }))).toMap(t -> t);
    // When
    final Map<String, Double> initialValues = values.get();
    circuitBreaker.executeRunnable(() -> {
    });
    final Map<String, Double> afterSuccessValues = values.get();
    try {
        circuitBreaker.executeRunnable(() -> {
            throw new SomeAppException("Some exception");
        });
    } catch (RuntimeException e) {
    // expected
    }
    final Map<String, Double> afterFailureValues = values.get();
    circuitBreaker.transitionToOpenState();
    try {
        circuitBreaker.executeRunnable(() -> {
        });
    } catch (CircuitBreakerOpenException e) {
    // expected
    }
    final Map<String, Double> afterDeclinedValues = values.get();
    // Then
    assertThat(initialValues).isEqualTo(HashMap.of("successful", 0.0, "failed", 0.0, "not_permitted", 0.0, "buffered", 0.0, "buffered_max", 100.0));
    assertThat(afterSuccessValues).isEqualTo(HashMap.of("successful", 1.0, "failed", 0.0, "not_permitted", 0.0, "buffered", 1.0, "buffered_max", 100.0));
    assertThat(afterFailureValues).isEqualTo(HashMap.of("successful", 1.0, "failed", 1.0, "not_permitted", 0.0, "buffered", 2.0, "buffered_max", 100.0));
    assertThat(afterDeclinedValues).isEqualTo(HashMap.of("successful", 1.0, "failed", 1.0, "not_permitted", 1.0, "buffered", 2.0, "buffered_max", 100.0));
}

Example 12 with CollectorRegistry

use of io.prometheus.client.CollectorRegistry in project resilience4j by resilience4j.

the class RateLimiterExportsTest method testExportsRateLimiterMetrics.

@Test
public void testExportsRateLimiterMetrics() {
    // Given
    final CollectorRegistry registry = new CollectorRegistry();
    final RateLimiter rateLimiter = RateLimiter.ofDefaults("foo");
    RateLimiterExports.ofIterable("boo_rate_limiter", singletonList(rateLimiter)).register(registry);
    final Supplier<Map<String, Double>> values = () -> HashSet.of("available_permissions", "waiting_threads").map(param -> Tuple.of(param, registry.getSampleValue("boo_rate_limiter", new String[] { "name", "param" }, new String[] { "foo", param }))).toMap(t -> t);
    // When
    final Map<String, Double> initialValues = values.get();
    // Then
    assertThat(initialValues).isEqualTo(HashMap.of("available_permissions", 50.0, "waiting_threads", 0.0));
}

Example 13 with CollectorRegistry

use of io.prometheus.client.CollectorRegistry in project infrautils by opendaylight.

the class MetricsPrometheusExampleMain method main.

public static void main(String[] args) throws IOException {
    // see also OsgiWebInitializer
    CollectorRegistry collectorRegistry = new CollectorRegistrySingleton();
    PrometheusMetricProviderImpl metricProvider = new PrometheusMetricProviderImpl(collectorRegistry);
    MetricsExample metricsExample = new MetricsExample(metricProvider);
    metricsExample.init();
    HTTPServer server = new HTTPServer(new InetSocketAddress("localhost", 1234), collectorRegistry);
    System.in.read();
    server.stop();
    metricsExample.close();
    metricProvider.close();
}