It supports Java, Clojure, Scala, JRuby, and anything else that runs on the JVM.
If you use Maven, you can simply reference the assets below. The latest version can be found on in the maven repository for io.prometheus.
<!-- The client -->
<dependency>
<groupId>io.prometheus</groupId>
<artifactId>simpleclient</artifactId>
<version>0.0.19</version>
</dependency>
<!-- Hotspot JVM metrics-->
<dependency>
<groupId>io.prometheus</groupId>
<artifactId>simpleclient_hotspot</artifactId>
<version>0.0.19</version>
</dependency>
<!-- Exposition servlet-->
<dependency>
<groupId>io.prometheus</groupId>
<artifactId>simpleclient_servlet</artifactId>
<version>0.0.19</version>
</dependency>
<!-- Pushgateway exposition-->
<dependency>
<groupId>io.prometheus</groupId>
<artifactId>simpleclient_pushgateway</artifactId>
<version>0.0.19</version>
</dependency>There are canonical examples defined in the class definition Javadoc of the client packages.
Documentation can be found at the Java Client Github Project Page.
The Prometheus Users Mailinglist is the best place to ask questions.
Details for those wishing to develop the library can be found on the wiki