On 19/07/12 16:28, Elli Schwarz wrote:
Hello,
I'm using the Jena API to connect to Fuseki via a DatasetAccessor, and I've
noticed that when I attempt to create a named graph with a URI that contains
the # sign that the URI is cut off from the # sign and on.
In other words, I have this code:
Model m = ModelFactory.createDefaultModel();
m.add(ResourceFactory.createResource("http://example.com/foo#test";),
ResourceFactory.createProperty("http://example.com/prop";), "foo");
DatasetAccessor ds =
DatasetAccessorFactory.createHTTP("http://localhost:3030/ds/data";);
ds.add("http://mygraph.com/foo#test";, m); //the characters #test
are cut off in the named graph URI
Model otherModel = ds.getModel("http://mygraph.com/foo#test";);
//this doesn't work since the graph is actually namedhttp://mygraph.com/foo
When I look at the named graphs created in Fuseki with a SPARQL query, I also see that the
graph is named <http://mygraph.com/foo> without the trailing #test. Is that on purpose?
While I understand that the # is used as an anchor tag to represent the position within a
document, and therefore perhaps I shouldn't use # in a named graph URI since it represents an
entire "document", it is still a valid URI so I find it weird that it gets cut off.
Thank you,
Elli
(note to self - move the DatasetAccessor code into ARQ)
The client code is failing to %-encode the graph name (the SOH scripts
do the right thing).
JENA-282 - and fixed, since it turned out only one point needed fixing.
(And, yes, using a # fragment is a bit odd)
By the way, have you seen Stephen's jena-client project? It's an
experimental new client interface to working with RDF data in a
repository-like fashion.
http://s.apache.org/vzm
https://svn.apache.org/repos/asf/jena/Experimental/jena-client/
Andy
