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

Example 26 with Gauge

use of com.codahale.metrics.Gauge in project graylog2-server by Graylog2.

the class ThroughputCounter method gauges.

public Map<String, Gauge<Long>> gauges() {
    Map<String, Gauge<Long>> gauges = Maps.newHashMap();
    final TrafficCounter tc = this.getTrafficCounter();
    gauges.put("read_bytes_1sec", new Gauge<Long>() {

        @Override
        public Long getValue() {
            return tc.getLastReadBytes();
        }
    });
    gauges.put("written_bytes_1sec", new Gauge<Long>() {

        @Override
        public Long getValue() {
            return tc.getLastWrittenBytes();
        }
    });
    gauges.put("read_bytes_total", new Gauge<Long>() {

        @Override
        public Long getValue() {
            return tc.getCumulativeReadBytes();
        }
    });
    gauges.put("written_bytes_total", new Gauge<Long>() {

        @Override
        public Long getValue() {
            return tc.getCumulativeWrittenBytes();
        }
    });
    return gauges;
}

Example 27 with Gauge

use of com.codahale.metrics.Gauge in project graylog2-server by Graylog2.

the class ThroughputResource method total.

@GET
@Timed
@RequiresPermissions(RestPermissions.THROUGHPUT_READ)
@ApiOperation(value = "Current throughput of this node in messages per second")
@Produces(MediaType.APPLICATION_JSON)
public Throughput total() {
    final SortedMap<String, Gauge> gauges = metricRegistry.getGauges(MetricUtils.filterSingleMetric(GlobalMetricNames.OUTPUT_THROUGHPUT_RATE));
    final Gauge gauge = Iterables.getOnlyElement(gauges.values(), null);
    if (gauge == null || !(gauge.getValue() instanceof Number)) {
        return Throughput.create(0);
    } else {
        return Throughput.create(((Number) gauge.getValue()).longValue());
    }
}

Example 28 with Gauge

use of com.codahale.metrics.Gauge in project graylog2-server by Graylog2.

the class MetricUtilsTest method safelyRegister.

@Test
public void safelyRegister() {
    final MetricRegistry metricRegistry = new MetricRegistry();
    final Gauge<Long> longGauge = new Gauge<Long>() {

        @Override
        public Long getValue() {
            return 0L;
        }
    };
    final Gauge<Long> newGauge = MetricUtils.safelyRegister(metricRegistry, "somename", longGauge);
    assertSame("metric objects are identical", longGauge, newGauge);
    try {
        MetricUtils.safelyRegister(metricRegistry, "somename", longGauge);
    } catch (Exception e) {
        fail("Should not have thrown: " + e.getMessage());
    }
    try {
        //noinspection unused
        final Counter somename = MetricUtils.safelyRegister(metricRegistry, "somename", new Counter());
    } catch (Exception e) {
        assertTrue("Registering a metric with a different metric type fails on using it", e instanceof ClassCastException);
    }
}

Example 29 with Gauge

use of com.codahale.metrics.Gauge in project beam by apache.

the class WithMetricsSupport method aggregatorMetricToGauges.

private Function<Map.Entry<String, Metric>, Map<String, Gauge>> aggregatorMetricToGauges() {
    return new Function<Map.Entry<String, Metric>, Map<String, Gauge>>() {

        @Override
        public Map<String, Gauge> apply(final Map.Entry<String, Metric> entry) {
            final NamedAggregators agg = ((AggregatorMetric) entry.getValue()).getNamedAggregators();
            final String parentName = entry.getKey();
            final Map<String, Gauge> gaugeMap = Maps.transformEntries(agg.renderAll(), toGauge());
            final Map<String, Gauge> fullNameGaugeMap = Maps.newLinkedHashMap();
            for (Map.Entry<String, Gauge> gaugeEntry : gaugeMap.entrySet()) {
                fullNameGaugeMap.put(parentName + "." + gaugeEntry.getKey(), gaugeEntry.getValue());
            }
            return Maps.filterValues(fullNameGaugeMap, Predicates.notNull());
        }
    };
}

Example 30 with Gauge

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

the class RequestHandlersTest method testInitCount.

@Test
public void testInitCount() {
    String registry = h.getCore().getCoreMetricManager().getRegistryName();
    SolrMetricManager manager = h.getCoreContainer().getMetricManager();
    Gauge<Number> g = (Gauge<Number>) manager.registry(registry).getMetrics().get("QUERY.mock.initCount");
    assertEquals("Incorrect init count", 1, g.getValue().intValue());
}