Examples with Gauge io.micrometer.core.instrument.Gauge used on opensource projects

Example 11 with Gauge

use of io.micrometer.core.instrument.Gauge in project micrometer by micrometer-metrics.

the class GaugeTest method numericGauge.

@Test
@DisplayName("gauges attached to a number are updated when their values are observed")
default void numericGauge(MeterRegistry registry) {
    AtomicInteger n = registry.gauge("my.gauge", new AtomicInteger(0));
    n.set(1);
    Gauge g = registry.get("my.gauge").gauge();
    assertThat(g.value()).isEqualTo(1);
    n.set(2);
    assertThat(g.value()).isEqualTo(2);
}

Example 12 with Gauge

use of io.micrometer.core.instrument.Gauge in project vertx-micrometer-metrics by vert-x3.

the class Gauges method get.

public T get(String... values) {
    T t = tSupplier.get();
    Gauge g = Gauge.builder(name, t, dGetter).description(description).tags(Labels.toTags(keys, values)).register(registry);
    return gauges.computeIfAbsent(g.getId(), v -> t);
}

Example 13 with Gauge

use of io.micrometer.core.instrument.Gauge in project vertx-micrometer-metrics by vert-x3.

the class GaugesTest method shouldIgnoreGaugeLabel.

@Test
public void shouldIgnoreGaugeLabel() {
    MeterRegistry registry = new SimpleMeterRegistry();
    BackendRegistries.registerMatchers(registry, Collections.singletonList(new Match().setLabel("address").setType(MatchType.REGEX).setValue(".*").setAlias("_")));
    Gauges<LongAdder> gauges = new Gauges<>("my_gauge", "", LongAdder::new, LongAdder::doubleValue, registry, Label.ADDRESS);
    gauges.get("addr1").increment();
    gauges.get("addr1").increment();
    gauges.get("addr2").increment();
    Gauge g = registry.find("my_gauge").tags("address", "_").gauge();
    assertThat(g.value()).isEqualTo(3d);
    g = registry.find("my_gauge").tags("address", "addr1").gauge();
    assertThat(g).isNull();
    g = registry.find("my_gauge").tags("address", "addr2").gauge();
    assertThat(g).isNull();
}