Steps to Build a Directive

Clone the example repository from github.
git clone git@github.com:hydrator/example-directive
Implementing three interfaces define(), initialize() and execute().
Build a JAR (mvn clean package)
Deploy the JAR as a plugin into CDAP through UI, CLI, or Microservices.
Use the plugin as follows:

    [1] parse-as-csv :body ',' true
    [2] #pragma load-directives text-reverse,text-sanitization;
    [3] text-reverse :text
    [4] text-sanitization :description

More description of the above lines.

[2] Dynamically loads the two UDDs as CDAP Plugins.
[3] Uses the directive.