> Personally, I think it is cleaner to use the method to get a generic link and manually call the parser to parse the result, than parsing 
> the URI of the link to call a concrete method of the specific api class

Makes sense to me...and certainly I'm not the expert on the Abiquo API who could have a firm opinion here ;-) But getting the parser from the injector rather than trying to construct it ourselves certainly seems like an improvement.