Examples with Sample io.prometheus.client.Collector.MetricFamilySamples.Sample used on opensource projects

Example 1 with Sample

use of io.prometheus.client.Collector.MetricFamilySamples.Sample in project incubator-servicecomb-java-chassis by apache.

the class MetricsCollector method load.

private List<MetricFamilySamples> load() {
    Map<String, Double> metrics = MonitorManager.getInstance().measure();
    List<MetricFamilySamples> familySamples = new ArrayList<>();
    List<Sample> samples = new ArrayList<>();
    for (Entry<String, Double> metric : metrics.entrySet()) {
        List<String> tagNames = new ArrayList<>();
        List<String> tagValues = new ArrayList<>();
        String name = metric.getKey();
        if (metric.getKey().contains("(")) {
            String[] nameAndTag = metric.getKey().split("\\(");
            name = nameAndTag[0];
            String[] tagAnValues = nameAndTag[1].split("[=,)]");
            for (int i = 0; i < tagAnValues.length; i += 2) {
                // we need put operation name in metrics name,not a label
                if (MetricsConst.TAG_OPERATION.equals(tagAnValues[i])) {
                    name = name + "." + tagAnValues[i + 1];
                } else if (!"type".equals(tagAnValues[i])) {
                    tagNames.add(tagAnValues[i]);
                    tagValues.add(tagAnValues[i + 1]);
                }
            }
        }
        samples.add(new Sample(formatMetricName(name), tagNames, tagValues, metric.getValue()));
    }
    familySamples.add(new MetricFamilySamples("ServiceComb Metrics", Type.UNTYPED, "ServiceComb Metrics", samples));
    return familySamples;
}

Example 2 with Sample

use of io.prometheus.client.Collector.MetricFamilySamples.Sample in project bookkeeper by apache.

the class PrometheusTextFormatUtil method writeMetricsCollectedByPrometheusClient.

static void writeMetricsCollectedByPrometheusClient(Writer w, CollectorRegistry registry) throws IOException {
    Enumeration<MetricFamilySamples> metricFamilySamples = registry.metricFamilySamples();
    while (metricFamilySamples.hasMoreElements()) {
        MetricFamilySamples metricFamily = metricFamilySamples.nextElement();
        for (int i = 0; i < metricFamily.samples.size(); i++) {
            Sample sample = metricFamily.samples.get(i);
            w.write(sample.name);
            w.write('{');
            for (int j = 0; j < sample.labelNames.size(); j++) {
                if (j != 0) {
                    w.write(", ");
                }
                w.write(sample.labelNames.get(j));
                w.write("=\"");
                w.write(sample.labelValues.get(j));
                w.write('"');
            }
            w.write("} ");
            w.write(Collector.doubleToGoString(sample.value));
            w.write('\n');
        }
    }
}

Example 3 with Sample

use of io.prometheus.client.Collector.MetricFamilySamples.Sample in project incubator-pulsar by apache.

the class PrometheusMetricsGenerator method generateSystemMetrics.

private static void generateSystemMetrics(SimpleTextOutputStream stream, String cluster) {
    Enumeration<MetricFamilySamples> metricFamilySamples = CollectorRegistry.defaultRegistry.metricFamilySamples();
    while (metricFamilySamples.hasMoreElements()) {
        MetricFamilySamples metricFamily = metricFamilySamples.nextElement();
        for (int i = 0; i < metricFamily.samples.size(); i++) {
            Sample sample = metricFamily.samples.get(i);
            stream.write(sample.name);
            stream.write("{cluster=\"").write(cluster).write('"');
            for (int j = 0; j < sample.labelNames.size(); j++) {
                stream.write(", ");
                stream.write(sample.labelNames.get(j));
                stream.write("=\"");
                stream.write(sample.labelValues.get(j));
                stream.write('"');
            }
            stream.write("} ");
            stream.write(Collector.doubleToGoString(sample.value));
            stream.write('\n');
        }
    }
}

Example 4 with Sample

use of io.prometheus.client.Collector.MetricFamilySamples.Sample in project promregator by promregator.

the class TextFormat004ParserTest method testSimpleMinusInf.

@Test
public void testSimpleMinusInf() {
    String textToParse = "# Minimalistic line:\n" + "\n" + "metric_without_labels -Inf 123456789012345600\n";
    TextFormat004Parser subject = new TextFormat004Parser(textToParse);
    HashMap<String, Collector.MetricFamilySamples> resultMap = subject.parse();
    Enumeration<Collector.MetricFamilySamples> result = Collections.enumeration(resultMap.values());
    // creating expected result
    LinkedList<Collector.MetricFamilySamples> expectedList = new LinkedList<>();
    List<Sample> samples = new LinkedList<>();
    Sample sample = new Sample("metric_without_labels", new LinkedList<String>(), new LinkedList<String>(), Double.NEGATIVE_INFINITY);
    samples.add(sample);
    Collector.MetricFamilySamples expectedMFS = new Collector.MetricFamilySamples("metric_without_labels", Type.UNTYPED, null, samples);
    expectedList.add(expectedMFS);
    Enumeration<Collector.MetricFamilySamples> expected = Collections.enumeration(expectedList);
    // compare
    compareEMFS(expected, result);
}

Example 5 with Sample

use of io.prometheus.client.Collector.MetricFamilySamples.Sample in project promregator by promregator.

the class TextFormat004ParserTest method testHistogramWithLabels.

@Test
public void testHistogramWithLabels() {
    String textToParse = "# A histogram, which has a pretty complex representation in the text format:\n" + "# HELP http_request_duration_seconds A histogram of the request duration.\n" + "# TYPE http_request_duration_seconds histogram\n" + "http_request_duration_seconds_bucket{name=\"value\",le=\"0.05\",} 24054\n" + "http_request_duration_seconds_bucket{name=\"value\",le=\"0.1\"} 33444\n" + "http_request_duration_seconds_bucket{le=\"0.2\",name=\"value\",} 100392\n" + "http_request_duration_seconds_bucket{le=\"0.5\",name=\"value\"} 129389\n" + "http_request_duration_seconds_bucket{name=\"value\",le=\"1\"} 133988\n" + "http_request_duration_seconds_bucket{name=\"value\",le=\"+Inf\"} 144320\n" + "http_request_duration_seconds_sum 53423\n" + "http_request_duration_seconds_count 144320";
    TextFormat004Parser subject = new TextFormat004Parser(textToParse);
    HashMap<String, Collector.MetricFamilySamples> resultMap = subject.parse();
    Enumeration<Collector.MetricFamilySamples> result = Collections.enumeration(resultMap.values());
    // creating expected result
    LinkedList<Collector.MetricFamilySamples> expectedList = new LinkedList<>();
    List<Sample> samples = new LinkedList<>();
    Sample sample = null;
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "0.05", 24054, true);
    samples.add(sample);
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "0.1", 33444, true);
    samples.add(sample);
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "0.2", 100392, false);
    samples.add(sample);
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "0.5", 129389, false);
    samples.add(sample);
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "1", 133988, true);
    samples.add(sample);
    sample = createSampleForHistogramWithDummyLabel("http_request_duration_seconds_bucket", "+Inf", 144320, true);
    samples.add(sample);
    sample = new Sample("http_request_duration_seconds_sum", new LinkedList<>(), new LinkedList<>(), 53423);
    samples.add(sample);
    sample = new Sample("http_request_duration_seconds_count", new LinkedList<>(), new LinkedList<>(), 144320);
    samples.add(sample);
    Collector.MetricFamilySamples expectedMFS = new Collector.MetricFamilySamples("http_request_duration_seconds", Type.HISTOGRAM, "A histogram of the request duration.", samples);
    expectedList.add(expectedMFS);
    Enumeration<Collector.MetricFamilySamples> expected = Collections.enumeration(expectedList);
    // compare
    compareEMFS(expected, result);
}