Package org.apache.kafka.common.metrics.stats

Examples of org.apache.kafka.common.metrics.stats.Count.measure()

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    public void testEventWindowing() {
        Count count = new Count();
        MetricConfig config = new MetricConfig().eventWindow(1).samples(2);
        count.record(config, 1.0, time.milliseconds());
        count.record(config, 1.0, time.milliseconds());
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
        count.record(config, 1.0, time.milliseconds()); // first event times out
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
    }

    @Test
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        MetricConfig config = new MetricConfig().eventWindow(1).samples(2);
        count.record(config, 1.0, time.milliseconds());
        count.record(config, 1.0, time.milliseconds());
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
        count.record(config, 1.0, time.milliseconds()); // first event times out
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
    }

    @Test
    public void testTimeWindowing() {
        Count count = new Count();
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        Count count = new Count();
        MetricConfig config = new MetricConfig().timeWindow(1, TimeUnit.MILLISECONDS).samples(2);
        count.record(config, 1.0, time.milliseconds());
        time.sleep(1);
        count.record(config, 1.0, time.milliseconds());
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
        time.sleep(1);
        count.record(config, 1.0, time.milliseconds()); // oldest event times out
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
    }
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        time.sleep(1);
        count.record(config, 1.0, time.milliseconds());
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
        time.sleep(1);
        count.record(config, 1.0, time.milliseconds()); // oldest event times out
        assertEquals(2.0, count.measure(config, time.milliseconds()), EPS);
    }

    @Test
    public void testOldDataHasNoEffect() {
        Max max = new Max();
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