private static AtomicLong getGauge(String name, String... additionalTags) { String key = className + "." + name + "." + Joiner.on(",").join(additionalTags); return gauges.computeIfAbsent(key, pollTimer -> { Id id = registry.createId(name, getTags(additionalTags)); return PolledMeter.using(registry) .withId(id) .monitorValue(new AtomicLong(0)); }); }
@Test public void testNumberGauge() { Number n = 42.0; NumberGauge c = new NumberGauge(CONFIG, n); register(c); PolledMeter.update(registry); assertEquals(42.0, registry.gauge(ID).value(), 1e-12); }
/** Register a custom monitor. */ public static void register(Monitor<?> monitor) { if (monitor instanceof SpectatorMonitor) { ((SpectatorMonitor) monitor).initializeSpectator(BasicTagList.EMPTY); } else if (!isEmptyComposite(monitor)) { ServoMeter m = new ServoMeter(monitor); PolledMeter.remove(registry, m.id()); PolledMeter.monitorMeter(registry, m); monitorMonitonicValues(monitor); } }
@Override public void registerGauge(String id, Supplier<Number> supplier, String... tagNameValuePairs) { Id metricId = suffixBaseId(id).withTags(tagNameValuePairs); PolledMeter.remove(registry, metricId); PolledMeter.using(registry) .withId(metricId) .monitorValue(supplier, ignore -> supplier.get().doubleValue()); }
@Test public void uncaughtExceptionFromGaugeFunction() { Assertions.assertThrows(RuntimeException.class, () -> { Registry registry = new DefaultRegistry(); PolledMeter.using(registry) .withName("test") .monitorValue(new RuntimeException("failure"), value -> { throw value; }); PolledMeter.update(registry); }); } }
@Override public void register(Meter meter) { PolledMeter.monitorMeter(this, meter); }
/** Unregister a custom monitor. */ public static void unregister(Monitor<?> monitor) { PolledMeter.remove(registry, createId(monitor.getConfig())); }
/** Create builder for a polled gauge based on the config. */ public static PolledMeter.Builder polledGauge(MonitorConfig config) { long delayMillis = Math.max(Pollers.getPollingIntervals().get(0) - 1000, 5000); Id id = createId(config); PolledMeter.remove(registry, id); return PolledMeter.using(registry) .withId(id) .withDelay(Duration.ofMillis(delayMillis)) .scheduleOn(gaugePool()); }
@Override public void register(Meter meter) { PolledMeter.monitorMeter(this, meter); }
/** Unregister a custom monitor. */ public static void unregister(Monitor<?> monitor) { PolledMeter.remove(registry, createId(monitor.getConfig())); }
@Inject public CassMonitorMetrics(Registry registry) { cassStop = registry.gauge(Metrics.METRIC_PREFIX + "cass.stop"); cassStart = registry.gauge(Metrics.METRIC_PREFIX + "cass.start"); cassAutoStart = registry.gauge(Metrics.METRIC_PREFIX + "cass.auto.start"); getSeedsCnt = PolledMeter.using(registry) .withName(Metrics.METRIC_PREFIX + "cass.getSeedCnt") .monitorMonotonicCounter(new AtomicLong(0)); getTokenCnt = PolledMeter.using(registry) .withName(Metrics.METRIC_PREFIX + "cass.getTokenCnt") .monitorMonotonicCounter(new AtomicLong(0)); getReplacedIpCnt = PolledMeter.using(registry) .withName(Metrics.METRIC_PREFIX + "cass.getReplacedIpCnt") .monitorMonotonicCounter(new AtomicLong(0)); doubleRingCnt = PolledMeter.using(registry) .withName(Metrics.METRIC_PREFIX + "cass.doubleRingCnt") .monitorMonotonicCounter(new AtomicLong(0)); }
@Test public void testBasicGauge() { BasicGauge<Double> c = new BasicGauge<>(CONFIG, () -> 42.0); register(c); PolledMeter.update(registry); assertEquals(42.0, registry.gauge(ID).value(), 1e-12); }
/** Create builder for a polled gauge based on the config. */ public static PolledMeter.Builder polledGauge(MonitorConfig config) { long delayMillis = Math.max(Pollers.getPollingIntervals().get(0) - 1000, 5000); Id id = createId(config); PolledMeter.remove(registry, id); return PolledMeter.using(registry) .withId(id) .withDelay(Duration.ofMillis(delayMillis)) .scheduleOn(gaugePool()); }
/** Register a custom monitor. */ public static void register(Monitor<?> monitor) { if (monitor instanceof SpectatorMonitor) { ((SpectatorMonitor) monitor).initializeSpectator(BasicTagList.EMPTY); } else if (!isEmptyComposite(monitor)) { ServoMeter m = new ServoMeter(monitor); PolledMeter.remove(registry, m.id()); PolledMeter.monitorMeter(registry, m); monitorMonitonicValues(monitor); } }
@Override public void register(Meter meter) { PolledMeter.monitorMeter(this, meter); }
@Test public void removeOtherType() throws Exception { LongTaskTimer t = LongTaskTimer.get(registry, id); Assertions.assertEquals(3, registry.state().size()); PolledMeter.remove(registry, id); Assertions.assertEquals(3, registry.state().size()); } }
@Test public void testCustomCounter() { CustomCounter c = new CustomCounter(); register(c); c.increment(); PolledMeter.update(registry); assertEquals(1, registry.counter(ID).count()); }
@Override public void register(Meter meter) { PolledMeter.monitorMeter(this, meter); }