Problem:

The TaskController contains currently to much code of the wrong level.

Controller logic should only be things dealing with HTTP requests, like authentication, getting data from the PUT/POST parameters, file uploads.

All other import logic (currently partly in a trait, example the default setting evaluation) should be extracted in a re-usable import class (exists already one).

The goal is, that we have a single class to be invoked when starting an import (for example the ConnectWorldserver plug-in doubles parts of the TaskController logic here instead re-using just a import class).
Currently this is not possible, since to much import logic is directly in the controller.