Examples with MetricNameTemplate org.apache.kafka.common.MetricNameTemplate used on opensource projects

Example 1 with MetricNameTemplate

use of org.apache.kafka.common.MetricNameTemplate in project apache-kafka-on-k8s by banzaicloud.

the class ConnectMetricsRegistry method createTemplate.

private MetricNameTemplate createTemplate(String name, String group, String doc, Set<String> tags) {
    MetricNameTemplate template = new MetricNameTemplate(name, group, doc, tags);
    allTemplates.add(template);
    return template;
}

Example 2 with MetricNameTemplate

use of org.apache.kafka.common.MetricNameTemplate in project apache-kafka-on-k8s by banzaicloud.

the class FetcherTest method testFetcherMetricsTemplates.

@Test
public void testFetcherMetricsTemplates() throws Exception {
    metrics.close();
    Map<String, String> clientTags = Collections.singletonMap("client-id", "clientA");
    metrics = new Metrics(new MetricConfig().tags(clientTags));
    metricsRegistry = new FetcherMetricsRegistry(clientTags.keySet(), "consumer" + groupId);
    fetcher.close();
    fetcher = createFetcher(subscriptions, metrics);
    // Fetch from topic to generate topic metrics
    subscriptions.assignFromUser(singleton(tp0));
    subscriptions.seek(tp0, 0);
    assertEquals(1, fetcher.sendFetches());
    client.prepareResponse(fullFetchResponse(tp0, this.records, Errors.NONE, 100L, 0));
    consumerClient.poll(0);
    assertTrue(fetcher.hasCompletedFetches());
    Map<TopicPartition, List<ConsumerRecord<byte[], byte[]>>> partitionRecords = fetcher.fetchedRecords();
    assertTrue(partitionRecords.containsKey(tp0));
    // Create throttle metrics
    Fetcher.throttleTimeSensor(metrics, metricsRegistry);
    // Verify that all metrics except metrics-count have registered templates
    Set<MetricNameTemplate> allMetrics = new HashSet<>();
    for (MetricName n : metrics.metrics().keySet()) {
        String name = n.name().replaceAll(tp0.toString(), "{topic}-{partition}");
        if (!n.group().equals("kafka-metrics-count"))
            allMetrics.add(new MetricNameTemplate(name, n.group(), "", n.tags().keySet()));
    }
    TestUtils.checkEquals(allMetrics, new HashSet<>(metricsRegistry.getAllTemplates()), "metrics", "templates");
}

Example 3 with MetricNameTemplate

use of org.apache.kafka.common.MetricNameTemplate in project apache-kafka-on-k8s by banzaicloud.

the class SenderMetricsRegistry method createTemplate.

private MetricNameTemplate createTemplate(String name, String group, String description, Set<String> tags) {
    MetricNameTemplate template = new MetricNameTemplate(name, group, description, tags);
    this.allTemplates.add(template);
    return template;
}

Example 4 with MetricNameTemplate

use of org.apache.kafka.common.MetricNameTemplate in project kafka by apache.

the class SenderMetricsRegistry method createTemplate.

private MetricNameTemplate createTemplate(String name, String group, String description, Set<String> tags) {
    MetricNameTemplate template = new MetricNameTemplate(name, group, description, tags);
    this.allTemplates.add(template);
    return template;
}

Example 5 with MetricNameTemplate

use of org.apache.kafka.common.MetricNameTemplate in project kafka by apache.

the class Metrics method toHtmlTable.

/**
 * Use the specified domain and metric name templates to generate an HTML table documenting the metrics. A separate table section
 * will be generated for each of the MBeans and the associated attributes. The MBean names are lexicographically sorted to
 * determine the order of these sections. This order is therefore dependent upon the order of the
 * tags in each {@link MetricNameTemplate}.
 *
 * @param domain the domain or prefix for the JMX MBean names; may not be null
 * @param allMetrics the collection of all {@link MetricNameTemplate} instances each describing one metric; may not be null
 * @return the string containing the HTML table; never null
 */
public static String toHtmlTable(String domain, Iterable<MetricNameTemplate> allMetrics) {
    Map<String, Map<String, String>> beansAndAttributes = new TreeMap<>();
    try (Metrics metrics = new Metrics()) {
        for (MetricNameTemplate template : allMetrics) {
            Map<String, String> tags = new LinkedHashMap<>();
            for (String s : template.tags()) {
                tags.put(s, "{" + s + "}");
            }
            MetricName metricName = metrics.metricName(template.name(), template.group(), template.description(), tags);
            String mBeanName = JmxReporter.getMBeanName(domain, metricName);
            if (!beansAndAttributes.containsKey(mBeanName)) {
                beansAndAttributes.put(mBeanName, new TreeMap<>());
            }
            Map<String, String> attrAndDesc = beansAndAttributes.get(mBeanName);
            if (!attrAndDesc.containsKey(template.name())) {
                attrAndDesc.put(template.name(), template.description());
            } else {
                throw new IllegalArgumentException("mBean '" + mBeanName + "' attribute '" + template.name() + "' is defined twice.");
            }
        }
    }
    StringBuilder b = new StringBuilder();
    b.append("<table class=\"data-table\"><tbody>\n");
    for (Entry<String, Map<String, String>> e : beansAndAttributes.entrySet()) {
        b.append("<tr>\n");
        b.append("<td colspan=3 class=\"mbeanName\" style=\"background-color:#ccc; font-weight: bold;\">");
        b.append(e.getKey());
        b.append("</td>");
        b.append("</tr>\n");
        b.append("<tr>\n");
        b.append("<th style=\"width: 90px\"></th>\n");
        b.append("<th>Attribute name</th>\n");
        b.append("<th>Description</th>\n");
        b.append("</tr>\n");
        for (Entry<String, String> e2 : e.getValue().entrySet()) {
            b.append("<tr>\n");
            b.append("<td></td>");
            b.append("<td>");
            b.append(e2.getKey());
            b.append("</td>");
            b.append("<td>");
            b.append(e2.getValue());
            b.append("</td>");
            b.append("</tr>\n");
        }
    }
    b.append("</tbody></table>");
    return b.toString();
}