examples.MetricsExamples.java Source code

Introduction

Here is the source code for examples.MetricsExamples.java

Source

/*
 * Copyright (c) 2011-2014 The original author or authors
 * ------------------------------------------------------
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * and Apache License v2.0 which accompanies this distribution.
 *
 *     The Eclipse Public License is available at
 *     http://www.eclipse.org/legal/epl-v10.html
 *
 *     The Apache License v2.0 is available at
 *     http://www.opensource.org/licenses/apache2.0.php
 *
 * You may elect to redistribute this code under either of these licenses.
 */

package examples;

import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.SharedMetricRegistries;
import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.eventbus.EventBus;
import io.vertx.core.http.HttpServer;
import io.vertx.core.json.JsonObject;
import io.vertx.docgen.Source;
import io.vertx.ext.dropwizard.DropwizardMetricsOptions;
import io.vertx.ext.dropwizard.Match;
import io.vertx.ext.dropwizard.MatchType;
import io.vertx.ext.dropwizard.MetricsService;

import java.util.Set;

/**
 * @author <a href="mailto:nscavell@redhat.com">Nick Scavelli</a>
 */
@Source
public class MetricsExamples {

    public void setup() {
        Vertx vertx = Vertx
                .vertx(new VertxOptions().setMetricsOptions(new DropwizardMetricsOptions().setEnabled(true)));
    }

    public void setupJMX() {
        Vertx vertx = Vertx
                .vertx(new VertxOptions().setMetricsOptions(new DropwizardMetricsOptions().setJmxEnabled(true)));
    }

    public void setupJMXWithDomain() {
        Vertx vertx = Vertx.vertx(new VertxOptions()
                .setMetricsOptions(new DropwizardMetricsOptions().setJmxEnabled(true).setJmxDomain("mydomain")));
    }

    public void setupMonitoredHandlers() {
        Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(new DropwizardMetricsOptions()
                .setEnabled(true).addMonitoredEventBusHandler(new Match().setValue("some-address"))
                .addMonitoredEventBusHandler(new Match().setValue("business-.*").setType(MatchType.REGEX))));
    }

    public void setupMonitoredUris() {
        Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(
                new DropwizardMetricsOptions().setEnabled(true).addMonitoredHttpServerUri(new Match().setValue("/"))
                        .addMonitoredHttpServerUri(new Match().setValue("/foo/.*").setType(MatchType.REGEX))));
    }

    public void setupMonitoredUrisWithAliases() {
        Vertx vertx = Vertx.vertx(new VertxOptions()
                .setMetricsOptions(new DropwizardMetricsOptions().setEnabled(true).addMonitoredHttpServerUri(
                        new Match().setValue("/users/.*").setAlias("users").setType(MatchType.REGEX))));
    }

    public void setupMonitoredEndpoints() {
        Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(new DropwizardMetricsOptions()
                .setEnabled(true).addMonitoredHttpClientEndpoint(new Match().setValue("some-host:80"))
                .addMonitoredHttpClientEndpoint(new Match().setValue("another-host:.*").setType(MatchType.REGEX))));
    }

    public void naming1(Vertx vertx, MetricsService metricsService) {
        JsonObject metrics = metricsService.getMetricsSnapshot(vertx);
        metrics.getJsonObject("vertx.eventbus.handlers");
    }

    public void naming2(Vertx vertx, MetricsService metricsService) {
        EventBus eventBus = vertx.eventBus();
        JsonObject metrics = metricsService.getMetricsSnapshot(eventBus);
        metrics.getJsonObject("handlers");
    }

    public void naming3(Vertx vertx, MetricsService metricsService) {
        Set<String> metricsNames = metricsService.metricsNames();
        for (String metricsName : metricsNames) {
            System.out.println("Known metrics name " + metricsName);
        }
    }

    public void baseName() {
        DropwizardMetricsOptions metricsOptions = new DropwizardMetricsOptions().setBaseName("foo");
    }

    public void example1(Vertx vertx) {
        MetricsService metricsService = MetricsService.create(vertx);
        JsonObject metrics = metricsService.getMetricsSnapshot(vertx);
        System.out.println(metrics);
    }

    public void example2(Vertx vertx) {
        MetricsService metricsService = MetricsService.create(vertx);
        HttpServer server = vertx.createHttpServer();
        // set up server
        JsonObject metrics = metricsService.getMetricsSnapshot(server);
    }

    public void example3(Vertx vertx) {
        MetricsService metricsService = MetricsService.create(vertx);
        JsonObject metrics = metricsService.getMetricsSnapshot("vertx.eventbus.message");
    }

    public void getRegistry() {
        VertxOptions options = new VertxOptions()
                .setMetricsOptions(new DropwizardMetricsOptions().setEnabled(true).setRegistryName("my-registry"));
        Vertx vertx = Vertx.vertx(options);
        // Get the registry
        MetricRegistry registry = SharedMetricRegistries.getOrCreate("my-registry");
        // Do whatever you need with the registry
    }

    public void example4() {
        Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(
                new DropwizardMetricsOptions().setEnabled(true).setJmxEnabled(true).setJmxDomain("vertx-metrics")));
    }
}