UriLoaderLoad Method (IGraph, Uri)
Attempts to select the relevant Parser based on the Content Type header returned in the HTTP Response.
If you know ahead of time the Content Type you can just open a HTTP Stream yourself and pass it to an instance of the correct Parser.
Note: UriLoader will assign the Graph the source URI as it's Base URI unless the Graph already has a Base URI or is non-empty prior to attempting parsing. Note that any Base URI specified in the RDF contained in the file will override this initial Base URI. In some cases this may lead to invalid RDF being accepted and generating strange relative URIs, if you encounter this either set a Base URI prior to calling this method or create an instance of the relevant parser and invoke it directly.