Extensions

An extension is a JAR file which may contain web content and triggers to execute Java code.

On start-up, CoDAK searches for extensions in the extensions directory and loads all extensions it finds. By default, the extensions directory is /usr/lib/codak/extensions, but this can be changed in the [Configuration].

An extension must contain a descriptor file, which is located in the JAR file in META-INF/codak-extension.xml. An basic descriptor file:

<?xml version="1.0" encoding="UTF-8"?>
<extension>
  <!--
    The name should be chosen such that it is unique within a CoDAK setup, as it
    identifies the extension.
  -->
  <name>org.example.package</name>

  <!--
    A short but descriptive, human readable title of the extension.
  -->
  <title>My First Extension</title>

  <!--
    A free text description of the extension.
  -->
  <description>This is a dummy extension. Please add content.</description>

  <!--
    Adding an entry point is optional, but it will let you add Java code.
  -->
  <!--
  <entryPoint>org.example.package.EntryPoint</entryPoint>
  -->
</extension>