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

Example 41 with Metric

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

the class MetricsResource method byNamespace.

@GET
@Timed
@Path("/namespace/{namespace}")
@ApiOperation(value = "Get all metrics of a namespace")
@ApiResponses(value = { @ApiResponse(code = 404, message = "No such metric namespace") })
@Produces(MediaType.APPLICATION_JSON)
public MetricsSummaryResponse byNamespace(@ApiParam(name = "namespace", required = true) @PathParam("namespace") String namespace) {
    final List<Map<String, Object>> metrics = Lists.newArrayList();
    for (Map.Entry<String, Metric> e : metricRegistry.getMetrics().entrySet()) {
        final String metricName = e.getKey();
        if (metricName.startsWith(namespace) && isPermitted(RestPermissions.METRICS_READ, metricName)) {
            try {
                final Metric metric = e.getValue();
                metrics.add(MetricUtils.map(metricName, metric));
            } catch (Exception ex) {
                LOG.warn("Could not read metric in namespace list.", ex);
            }
        }
    }
    if (metrics.isEmpty()) {
        final String msg = "No metrics with namespace [" + namespace + "] found.";
        LOG.debug(msg);
        throw new NotFoundException(msg);
    }
    return MetricsSummaryResponse.create(metrics);
}

Example 42 with Metric

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

the class MetricsResource method multipleMetrics.

@POST
@Timed
@Path("/multiple")
@ApiOperation("Get the values of multiple metrics at once")
@ApiResponses(value = { @ApiResponse(code = 400, message = "Malformed body") })
@NoAuditEvent("only used to retrieve multiple metrics")
public MetricsSummaryResponse multipleMetrics(@ApiParam(name = "Requested metrics", required = true) @Valid @NotNull MetricsReadRequest request) {
    final Map<String, Metric> metrics = metricRegistry.getMetrics();
    final List<Map<String, Object>> metricsList = Lists.newArrayList();
    for (String name : request.metrics()) {
        if (!isPermitted(RestPermissions.METRICS_READ, name)) {
            continue;
        }
        final Metric metric = metrics.get(name);
        if (metric != null) {
            metricsList.add(MetricUtils.map(name, metric));
        }
    }
    return MetricsSummaryResponse.create(metricsList);
}

Example 43 with Metric

use of com.codahale.metrics.Metric in project riposte by Nike-Inc.

the class EndpointMetricsHandlerDefaultImplTest method setupMetricRegistryMock.

private void setupMetricRegistryMock() {
    metricRegistryMock = mock(MetricRegistry.class);
    registeredTimers = new HashMap<>();
    doAnswer(invocation -> {
        Timer originalTimer = (Timer) invocation.callRealMethod();
        return spy(originalTimer);
    }).when(instance).createAndRegisterRequestTimer(anyString(), any(MetricRegistry.class));
    doThrow(new RuntimeException("All timer creation should go through createAndRegisterRequestTimer(), *not* metricRegistry.timer(...).")).when(metricRegistryMock).timer(anyString());
    registeredMeterMocks = new HashMap<>();
    doAnswer(invocation -> {
        String name = invocation.getArgumentAt(0, String.class);
        Meter meterMock = mock(Meter.class);
        registeredMeterMocks.put(name, meterMock);
        return meterMock;
    }).when(metricRegistryMock).meter(anyString());
    registeredCounterMocks = new HashMap<>();
    doAnswer(invocation -> {
        String name = invocation.getArgumentAt(0, String.class);
        Counter counterMock = mock(Counter.class);
        registeredCounterMocks.put(name, counterMock);
        return counterMock;
    }).when(metricRegistryMock).counter(anyString());
    registeredHistogramMocks = new HashMap<>();
    doAnswer(invocation -> {
        String name = invocation.getArgumentAt(0, String.class);
        Histogram histogramMock = mock(Histogram.class);
        registeredHistogramMocks.put(name, histogramMock);
        return histogramMock;
    }).when(metricRegistryMock).histogram(anyString());
    registeredGauges = new HashMap<>();
    doAnswer(invocation -> {
        String name = invocation.getArgumentAt(0, String.class);
        Metric metric = invocation.getArgumentAt(1, Metric.class);
        if (metric instanceof Gauge)
            registeredGauges.put(name, (Gauge) metric);
        else if (metric instanceof Timer)
            registeredTimers.put(name, (Timer) metric);
        else
            throw new RuntimeException("Expected Gauge or Timer, but received: " + metric.getClass().getName());
        return metric;
    }).when(metricRegistryMock).register(anyString(), any(Metric.class));
}

Example 44 with Metric

use of com.codahale.metrics.Metric in project riposte by Nike-Inc.

the class SignalFxEndpointMetricsHandlerTest method RollingWindowTimerBuilder_isInstance_works_as_expected.

@DataProvider(value = { "true   |   true", "false  |   false" }, splitBy = "\\|")
@Test
public void RollingWindowTimerBuilder_isInstance_works_as_expected(boolean useTimer, boolean expectedResult) {
    // given
    Metric metric = (useTimer) ? mock(Timer.class) : mock(Gauge.class);
    RollingWindowTimerBuilder rwtb = new RollingWindowTimerBuilder(42, TimeUnit.DAYS);
    // when
    boolean result = rwtb.isInstance(metric);
    // then
    assertThat(result).isEqualTo(expectedResult);
}

Example 45 with Metric

use of com.codahale.metrics.Metric in project alluxio by Alluxio.

the class WebInterfaceMasterMetricsServlet method populateValues.

/**
   * Populates key, value pairs for UI display.
   *
   * @param request The {@link HttpServletRequest} object
   * @throws IOException if an I/O error occurs
   */
private void populateValues(HttpServletRequest request) throws IOException {
    MetricRegistry mr = MetricsSystem.METRIC_REGISTRY;
    Long masterCapacityTotal = (Long) mr.getGauges().get(MetricsSystem.getMasterMetricName(BlockMaster.Metrics.CAPACITY_TOTAL)).getValue();
    Long masterCapacityUsed = (Long) mr.getGauges().get(MetricsSystem.getMasterMetricName(BlockMaster.Metrics.CAPACITY_USED)).getValue();
    int masterCapacityUsedPercentage = (masterCapacityTotal > 0) ? (int) (100L * masterCapacityUsed / masterCapacityTotal) : 0;
    request.setAttribute("masterCapacityUsedPercentage", masterCapacityUsedPercentage);
    request.setAttribute("masterCapacityFreePercentage", 100 - masterCapacityUsedPercentage);
    Long masterUnderfsCapacityTotal = (Long) mr.getGauges().get(MetricsSystem.getMasterMetricName(FileSystemMaster.Metrics.UFS_CAPACITY_TOTAL)).getValue();
    Long masterUnderfsCapacityUsed = (Long) mr.getGauges().get(MetricsSystem.getMasterMetricName(FileSystemMaster.Metrics.UFS_CAPACITY_USED)).getValue();
    int masterUnderfsCapacityUsedPercentage = (masterUnderfsCapacityTotal > 0) ? (int) (100L * masterUnderfsCapacityUsed / masterUnderfsCapacityTotal) : 0;
    request.setAttribute("masterUnderfsCapacityUsedPercentage", masterUnderfsCapacityUsedPercentage);
    request.setAttribute("masterUnderfsCapacityFreePercentage", 100 - masterUnderfsCapacityUsedPercentage);
    Map<String, Counter> counters = mr.getCounters(new MetricFilter() {

        @Override
        public boolean matches(String name, Metric metric) {
            return !(name.endsWith("Ops"));
        }
    });
    Map<String, Counter> rpcInvocations = mr.getCounters(new MetricFilter() {

        @Override
        public boolean matches(String name, Metric metric) {
            return name.endsWith("Ops");
        }
    });
    Map<String, Metric> operations = new TreeMap<>();
    // Remove the instance name from the metrics.
    for (Map.Entry<String, Counter> entry : counters.entrySet()) {
        operations.put(MetricsSystem.stripInstanceAndHost(entry.getKey()), entry.getValue());
    }
    String filesPinnedProperty = MetricsSystem.getMasterMetricName(FileSystemMaster.Metrics.FILES_PINNED);
    operations.put(MetricsSystem.stripInstanceAndHost(filesPinnedProperty), mr.getGauges().get(filesPinnedProperty));
    Map<String, Counter> rpcInvocationsUpdated = new TreeMap<>();
    for (Map.Entry<String, Counter> entry : rpcInvocations.entrySet()) {
        rpcInvocationsUpdated.put(MetricsSystem.stripInstanceAndHost(entry.getKey()), entry.getValue());
    }
    populateCounterValues(operations, rpcInvocationsUpdated, request);
}