vertx-cassandra-micrometer vertx-cassandra-micrometer

application.conf

datastax-java-driver.advanced.metrics {
  factory.class = MicrometerMetricsFactory
  session.enabled = [ connected-nodes, cql-requests ]
  node.enabled = [ pool.open-connections, pool.in-flight ]
}

MainVerticle.java

package com.example.starter;

import io.vertx.cassandra.CassandraClient;
import io.vertx.cassandra.CassandraClientOptions;
import io.vertx.core.AbstractVerticle;
import io.vertx.core.Vertx;
import io.vertx.core.VertxOptions;
import io.vertx.core.http.HttpServerOptions;
import io.vertx.micrometer.MicrometerMetricsOptions;
import io.vertx.micrometer.VertxPrometheusOptions;
import io.vertx.micrometer.backends.BackendRegistries;

public class MainVerticle extends AbstractVerticle {

  public static void main(String[] args) {
    Vertx vertx = Vertx.vertx(new VertxOptions().setMetricsOptions(
      new MicrometerMetricsOptions()
        .setPrometheusOptions(new VertxPrometheusOptions().setEnabled(true)
          .setStartEmbeddedServer(true)
          .setEmbeddedServerOptions(new HttpServerOptions().setPort(8080))
          .setEmbeddedServerEndpoint("/metrics/vertx"))
        .setEnabled(true)));
    vertx.deployVerticle(new MainVerticle());
  }

  @Override
  public void start() {
    CassandraClientOptions cassandraClientOptions = new CassandraClientOptions();
    cassandraClientOptions.dataStaxClusterBuilder()
      .withMetricRegistry(BackendRegistries.getDefaultNow());

    CassandraClient client = CassandraClient.create(vertx, cassandraClientOptions);

    vertx.setPeriodic(5 * 1000, l -> {
      client.execute("select release_version from system.local")
        .map(resultSet -> resultSet.one().getString("release_version"))
        .onSuccess(s -> System.out.println("s = " + s))
        .onFailure(Throwable::printStackTrace);
    });
  }
}

pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.example</groupId>
  <artifactId>starter</artifactId>
  <version>1.0.0-SNAPSHOT</version>

  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>

    <maven-compiler-plugin.version>3.8.1</maven-compiler-plugin.version>
    <maven-shade-plugin.version>2.4.3</maven-shade-plugin.version>
    <maven-surefire-plugin.version>2.22.2</maven-surefire-plugin.version>
    <exec-maven-plugin.version>1.5.0</exec-maven-plugin.version>

    <vertx.version>4.0.0.Beta3</vertx.version>
    <junit-jupiter.version>5.4.0</junit-jupiter.version>

    <main.verticle>com.example.starter.MainVerticle</main.verticle>
  </properties>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>io.vertx</groupId>
        <artifactId>vertx-stack-depchain</artifactId>
        <version>${vertx.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

  <dependencies>
    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-cassandra-client</artifactId>
      <exclusions>
        <exclusion>
          <groupId>io.dropwizard.metrics</groupId>
          <artifactId>metrics-core</artifactId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>com.datastax.oss</groupId>
      <artifactId>java-driver-metrics-micrometer</artifactId>
      <version>4.9.0</version>
    </dependency>
    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-micrometer-metrics</artifactId>
    </dependency>
    <dependency>
      <groupId>io.micrometer</groupId>
      <artifactId>micrometer-core</artifactId>
      <version>1.5.2</version>
    </dependency>
    <dependency>
      <groupId>io.micrometer</groupId>
      <artifactId>micrometer-registry-prometheus</artifactId>
      <version>1.5.2</version>
    </dependency>

    <dependency>
      <groupId>io.vertx</groupId>
      <artifactId>vertx-junit5</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <version>${junit-jupiter.version}</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-engine</artifactId>
      <version>${junit-jupiter.version}</version>
      <scope>test</scope>
    </dependency>
  </dependencies>

  <build>
    <plugins>
      <plugin>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>${maven-compiler-plugin.version}</version>
      </plugin>
      <plugin>
        <artifactId>maven-shade-plugin</artifactId>
        <version>${maven-shade-plugin.version}</version>
        <executions>
          <execution>
            <phase>package</phase>
            <goals>
              <goal>shade</goal>
            </goals>
            <configuration>
              <transformers>
                <transformer
                  implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
                  <manifestEntries>
                    <Main-Class>io.vertx.core.Launcher</Main-Class>
                    <Main-Verticle>${main.verticle}</Main-Verticle>
                  </manifestEntries>
                </transformer>
                <transformer
                  implementation="org.apache.maven.plugins.shade.resource.AppendingTransformer">
                  <resource>META-INF/services/io.vertx.core.spi.VerticleFactory</resource>
                </transformer>
              </transformers>
              <artifactSet>
              </artifactSet>
              <outputFile>${project.build.directory}/${project.artifactId}-${project.version}-fat.jar
              </outputFile>
            </configuration>
          </execution>
        </executions>
      </plugin>
      <plugin>
        <artifactId>maven-surefire-plugin</artifactId>
        <version>${maven-surefire-plugin.version}</version>
      </plugin>
      <plugin>
        <groupId>org.codehaus.mojo</groupId>
        <artifactId>exec-maven-plugin</artifactId>
        <version>${exec-maven-plugin.version}</version>
        <configuration>
          <mainClass>io.vertx.core.Launcher</mainClass>
          <arguments>
            <argument>run</argument>
            <argument>${main.verticle}</argument>
          </arguments>
        </configuration>
      </plugin>
    </plugins>
  </build>


</project>