Re: Fuseki 2: Serving RDF/XML over HTTP

[Andy Seaborne]

The problem is that you are asking the dataset for RDF/XML.
Datasets include the named graphs.  It needs TriG or N-Quads.

So you ask for RDF/XML, and content negotiation says "can't - here's nmy 
default (which is N-Quads) and then the code ignores the Content-type 
and forces RDF/XML. It then fails to parse.


This works for me - ask for the default graph:

"http://localhost:"+PORT+"/birch?default";

Below is that done twice - using RDFConnection and as in the example.

Fuseki logging is turned on which can help debug conneg.

    Andy

public static void main(String[] args) throws Exception {

    FusekiLogging.setLogging();
    int PORT = WebLib.choosePort();

    FusekiServer server = FusekiServer.create()
        .port(PORT)
        .verbose(true)
        .add("/birch", DatasetFactory.createTxnMem())
        .build();
    server.start();
    // Server startup.
    Lib.sleep(100);

    // Version 1
    try (RDFConnection conn = RDFConnectionRemote
        .create()
        .destination("http://localhost:"+PORT+"/birch";)
        .acceptHeaderGraph("application/rdf+xml")
        .build()) {
        Model model = conn.fetch();
        RDFDataMgr.write(System.out,  model, Lang.RDFXML);
    }

    // Version 2
    URL url = new URL("http://localhost:"+PORT+"/birch?default";);

    URLConnection conn = url.openConnection();
    conn.setRequestProperty("Accept", "application/rdf+xml");
    Model model = ModelFactory.createDefaultModel();
    model.read(conn.getInputStream(), null);
//        RDFDataMgr.read(model, conn.getInputStream(), Lang.RDFXML);
    RDFDataMgr.write(System.out,  model, Lang.RDFXML);
    System.exit(0);
}