Getting Started with Payara Server

This video demonstrates the starting steps of creating a RESTful Web Service using Payara Server and NetBeans.

A REST Service in Java EE can be created using JAX-RS. The contents of such service can be consumed using ordinary HTTP requests to a URL.

JSF is a component oriented MVC (Model View Controller) framework that’s a part of Java EE. It comes with a small set of basic components (widgets), a templating engine, and facilities for converting and validating input.

A REST service will expose some kind of data or will allow some kind of interactions with a server. If you don’t want just anyone looking at that history, you’ll need to secure the REST service.

Before putting any application out for public access, it’s always worth testing that it works how you expect it to (and also how you don’t expect it to!)

Logging is one of the key concepts for successfully running your applications. It tells you what your application and server is doing. And of course, logging is the first place you should look when things go wrong.

Using the JMX Monitoring Service, you can monitor information about the JVM runtime such as heap memory usage and threading, as well as more detailed information about the running Payara Server instance.

The Monitoring Service logs metrics in a way which allows for fairly hassle-free integration with tools such as Logstash and Elasticsearch. This blog post covers how to get monitoring data from your server.log file and store it in Elasticsearch using Logstash.

When Payara Server has been logging monitoring data to the server log for a short while, the metrics that Logstash outputs to Elasticsearch can be visualised using Kibana. In this blog post, we will create a date histogram displaying used heap memory as a percentage of the maximum heap memory.