Examples with Clock com.codahale.metrics.Clock used on opensource projects

Example 1 with Clock

use of com.codahale.metrics.Clock in project lucene-solr by apache.

the class MetricSuppliers method getReservoir.

private static final Reservoir getReservoir(SolrResourceLoader loader, PluginInfo info) {
    if (info == null) {
        return new ExponentiallyDecayingReservoir();
    }
    Clock clk = getClock(info, CLOCK);
    String clazz = ExponentiallyDecayingReservoir.class.getName();
    int size = -1;
    double alpha = -1;
    long window = -1;
    if (info.initArgs != null) {
        if (info.initArgs.get(RESERVOIR) != null) {
            String val = String.valueOf(info.initArgs.get(RESERVOIR)).trim();
            if (!val.isEmpty()) {
                clazz = val;
            }
        }
        Number n = (Number) info.initArgs.get(RESERVOIR_SIZE);
        if (n != null) {
            size = n.intValue();
        }
        n = (Number) info.initArgs.get(RESERVOIR_EDR_ALPHA);
        if (n != null) {
            alpha = n.doubleValue();
        }
        n = (Number) info.initArgs.get(RESERVOIR_WINDOW);
        if (n != null) {
            window = n.longValue();
        }
    }
    if (size <= 0) {
        size = DEFAULT_SIZE;
    }
    if (alpha <= 0) {
        alpha = DEFAULT_ALPHA;
    }
    // special case for core implementations
    if (clazz.equals(EDR_CLAZZ)) {
        return new ExponentiallyDecayingReservoir(size, alpha, clk);
    } else if (clazz.equals(UNI_CLAZZ)) {
        return new UniformReservoir(size);
    } else if (clazz.equals(STW_CLAZZ)) {
        if (window <= 0) {
            // 5 minutes, comparable to EDR
            window = DEFAULT_WINDOW;
        }
        return new SlidingTimeWindowReservoir(window, TimeUnit.SECONDS);
    } else if (clazz.equals(SW_CLAZZ)) {
        return new SlidingWindowReservoir(size);
    } else {
        // custom reservoir
        Reservoir reservoir;
        try {
            reservoir = loader.newInstance(clazz, Reservoir.class);
            if (reservoir instanceof PluginInfoInitialized) {
                ((PluginInfoInitialized) reservoir).init(info);
            } else {
                SolrPluginUtils.invokeSetters(reservoir, info.initArgs, true);
            }
            return reservoir;
        } catch (Exception e) {
            log.warn("Error initializing custom Reservoir implementation (will use default): " + info, e);
            return new ExponentiallyDecayingReservoir(size, alpha, clk);
        }
    }
}

Example 2 with Clock

use of com.codahale.metrics.Clock in project lucene-solr by apache.

the class MetricSuppliers method getClock.

private static Clock getClock(PluginInfo info, String param) {
    if (info == null) {
        return Clock.defaultClock();
    }
    String clock = null;
    if (info.attributes != null) {
        clock = info.attributes.get(param);
    }
    if (clock == null && info.initArgs != null) {
        clock = (String) info.initArgs.get(param);
    }
    Clock clk = Clock.defaultClock();
    if (clock != null) {
        if (clock.equalsIgnoreCase(CLOCK_USER)) {
            clk = USER_CLOCK;
        } else if (clock.equalsIgnoreCase(CLOCK_CPU)) {
            clk = CPU_CLOCK;
        }
    }
    return clk;
}

Example 3 with Clock

use of com.codahale.metrics.Clock in project metrics by dropwizard.

the class HealthCheckTest method toStringWorksEvenForNullAttributes.

@Test
public void toStringWorksEvenForNullAttributes() {
    ZonedDateTime dateTime = ZonedDateTime.now().minusMinutes(25);
    Clock clock = clockWithFixedTime(dateTime);
    final HealthCheck.Result resultWithNullDetailValue = HealthCheck.Result.builder().unhealthy().withDetail("aNullDetail", null).usingClock(clock).build();
    assertThat(resultWithNullDetailValue.toString()).contains("Result{isHealthy=false, duration=0, timestamp=" + DATE_TIME_FORMATTER.format(dateTime), ", aNullDetail=null}");
}

Example 4 with Clock

use of com.codahale.metrics.Clock in project metrics by dropwizard.

the class HealthCheckTest method canHaveUserSuppliedClockForTimestamp.

@Test
public void canHaveUserSuppliedClockForTimestamp() {
    ZonedDateTime dateTime = ZonedDateTime.now().minusMinutes(10);
    Clock clock = clockWithFixedTime(dateTime);
    HealthCheck.Result result = HealthCheck.Result.builder().healthy().usingClock(clock).build();
    assertThat(result.isHealthy()).isTrue();
    assertThat(result.getTime()).isEqualTo(clock.getTime());
    assertThat(result.getTimestamp()).isEqualTo(DATE_TIME_FORMATTER.format(dateTime));
}

Example 5 with Clock

use of com.codahale.metrics.Clock in project lucene-solr by apache.

the class MetricsConfigTest method testDefaults.

@Test
public void testDefaults() throws Exception {
    NodeConfig cfg = loadNodeConfig();
    SolrMetricManager mgr = new SolrMetricManager(loader, cfg.getMetricsConfig());
    assertTrue(mgr.getCounterSupplier() instanceof MetricSuppliers.DefaultCounterSupplier);
    assertTrue(mgr.getMeterSupplier() instanceof MetricSuppliers.DefaultMeterSupplier);
    assertTrue(mgr.getTimerSupplier() instanceof MetricSuppliers.DefaultTimerSupplier);
    assertTrue(mgr.getHistogramSupplier() instanceof MetricSuppliers.DefaultHistogramSupplier);
    Clock clk = ((MetricSuppliers.DefaultTimerSupplier) mgr.getTimerSupplier()).clk;
    assertTrue(clk instanceof Clock.UserTimeClock);
    Reservoir rsv = ((MetricSuppliers.DefaultTimerSupplier) mgr.getTimerSupplier()).getReservoir();
    assertTrue(rsv instanceof ExponentiallyDecayingReservoir);
}