In recent times, many programming languages that run on JVM have emerged. Many of these languages support the concept of writing code in a functional style. Programmers have started realizing the benefits of functional programming and are beginning to rediscover the powerful style of this programming paradigm. The emergence of multiple languages on JVM have only helped to reignite the strong interest in this paradigm. This article shows how functional programming is different from imperative styles and the options available on JVM for writing code in a functional style.

Objectif: Update chart data on the client side as events occurs on the business side. Vert.x, the java equivalent to node.js Hightcharts.js a advanced javascript charting library. WebSocket is a full duplex protocol used to connect the browser to the server. ws for brevity.

Use groovy to parse configuration file that include code snippets, context and external properties