How to load XML data from HTTP request in ember 2.1

I am new in Ember.js and I am having trouble connecting my app to the backend data.

I am currently using ember data v.2.1, ember v.2.1, ember inspector v.1.9.3

We are upgrading an existing app and we want to use ember as front-end framework. The app right now is java based and is using xsl on the front.

What I need to do is to connect through HTML request with ember to the existing backend which return XML and convert it to json so I can use it in ember. I tried to follow this example : http://ift.tt/1MLjNOS without any luck.

With the inspector I can see my model, but I can't load any data in it.