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

Example 71 with MeterRegistry

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

the class FunctionCounterSample method main.

public static void main(String[] args) {
    MeterRegistry registry = SampleConfig.myMonitoringSystem();
    AtomicInteger n = new AtomicInteger(0);
    FunctionCounter.builder("my.fcounter", n, AtomicInteger::get).baseUnit("happiness").description("A counter derived from a monotonically increasing value").register(registry);
    Counter counter = Counter.builder("my.counter").baseUnit("happiness").description("A normal counter").register(registry);
    Flux.interval(Duration.ofMillis(10)).doOnEach(i -> {
        n.incrementAndGet();
        counter.increment();
    }).blockLast();
}

Example 72 with MeterRegistry

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

the class CacheSample method main.

public static void main(String[] args) {
    MeterRegistry registry = SampleConfig.myMonitoringSystem();
    GuavaCacheMetrics.monitor(registry, guavaCache, "book.guava");
    // read all of Frankenstein
    HttpClient.create("www.gutenberg.org").get("/cache/epub/84/pg84.txt").flatMapMany(res -> res.addHandler(wordDecoder()).receive().asString()).delayElements(// one word per 10 ms
    Duration.ofMillis(10)).filter(word -> !word.isEmpty()).doOnNext(word -> {
        if (guavaCache.getIfPresent(word) == null)
            guavaCache.put(word, 1);
    }).blockLast();
}

Example 73 with MeterRegistry

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

the class ClassLoaderMetricsTest method classLoadingMetrics.

@Test
void classLoadingMetrics() {
    MeterRegistry registry = new SimpleMeterRegistry();
    new ClassLoaderMetrics().bindTo(registry);
    assertThat(registry.get("jvm.classes.loaded").gauge().value()).isGreaterThan(0);
}

Example 74 with MeterRegistry

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

the class UptimeMetricsTest method uptimeMetricsMock.

@Test
void uptimeMetricsMock() {
    MeterRegistry registry = new SimpleMeterRegistry(SimpleConfig.DEFAULT, new MockClock());
    RuntimeMXBean runtimeMXBean = mock(RuntimeMXBean.class);
    when(runtimeMXBean.getUptime()).thenReturn(1337L);
    when(runtimeMXBean.getStartTime()).thenReturn(4711L);
    new UptimeMetrics(runtimeMXBean, emptyList()).bindTo(registry);
    assertThat(registry.get("process.uptime").timeGauge().value()).isEqualTo(1.337);
    assertThat(registry.get("process.start.time").timeGauge().value()).isEqualTo(4.711);
}

Example 75 with MeterRegistry

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

the class UptimeMetricsTest method uptimeMetricsRuntime.

@Test
void uptimeMetricsRuntime() {
    MeterRegistry registry = new SimpleMeterRegistry(SimpleConfig.DEFAULT, new MockClock());
    new UptimeMetrics().bindTo(registry);
    registry.get("process.uptime").timeGauge();
    registry.get("process.start.time").timeGauge();
}