swagger + jetty with REST DSL

[Tim Dudgeon]

Can someone provide some info on how to get swagger set up with the REST 
DSL in a simple jetty environment.
e.g. something very similar to what Christian described here:
http://blog.christianposta.com/camel/easy-rest-endpoints-with-apache-camel-2-14/
e.g. Java only, no Spring.
Thanks
Tim