Main.java

/*
 * Copyright 2018 Red Hat, Inc. and/or its affiliates
 * and other contributors as indicated by the @author tags.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.vertx.example.micrometer.prometheus;

import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.http.HttpServerOptions;
import io.vertx.example.micrometer.verticles.EventbusConsumer;
import io.vertx.example.micrometer.verticles.EventbusProducer;
import io.vertx.example.micrometer.verticles.SimpleWebServer;
import io.vertx.micrometer.MicrometerMetricsOptions;
import io.vertx.micrometer.VertxPrometheusOptions;

/**
 * @author Joel Takvorian, jtakvori@redhat.com
 */
public final class Main {
  public static void main(String[] args) {
    // Deploy with embedded server: prometheus metrics will be automatically exposed,
    // independently from any other HTTP server defined
    MicrometerMetricsOptions options = new MicrometerMetricsOptions()
      .setPrometheusOptions(new VertxPrometheusOptions()
        .setStartEmbeddedServer(true)
        .setEmbeddedServerOptions(new HttpServerOptions().setPort(8081))
        .setEnabled(true))
      .setEnabled(true);
    Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(options));

    // Uncomment the following to get histograms
//    PrometheusMeterRegistry registry = (PrometheusMeterRegistry) BackendRegistries.getDefaultNow();
//    registry.config().meterFilter(
//        new MeterFilter() {
//          @Override
//          public DistributionStatisticConfig configure(Meter.Id id, DistributionStatisticConfig config) {
//            return DistributionStatisticConfig.builder()
//                .percentilesHistogram(true)
//                .build()
//                .merge(config);
//          }
//        });

    vertx.deployVerticle(new SimpleWebServer());
    vertx.deployVerticle(new EventbusConsumer());
    vertx.deployVerticle(new EventbusProducer());
  }
}