...
The sliapi directory contains the usual directories for a karaf feature with an additional directory "installer." This directory contains the code that creates the installation zip file that is referenced in the dependencies section of the ODLSLI pom.xml file.
Context for the installer
CCSDK is based on OpenDaylight and follows the recommended practices of that group. There are guidelines for karaf features, and another aspect is what OpenDaylight calls "component meta-features," in which several features are grouped to simplify their installation into karaf.
Inspecting the installer pom.xml file
...