[Bigdata-developers] Problems with RDR

[Max O. <ma...@ni...>]

Hi,

I have trying to get the RDR extension working as this is the feature I'm
most interested in. So I copied a simple statement from the web site into a
file called 'bob.tut'

@prefix : <http://bigdata.com> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .

:bob foaf:name "Bob" .
<<:bob foaf:age 23>> dct:creator <http://example.com/crawlers#c1> ;
                     dct:source <http://example.net/homepage-listing.html> .

(BTW, the trailing dot on line 2 and ‘;’ on line 5 is missing in the wiki
writeup).

I then created a namespace “test” with RDR selected which gave me the
following service description:

….
<endpoint xmlns="http://www.w3.org/ns/sparql-service-description#"
rdf:resource="http://localhost:9999/bigdata/namespace/test/sparql”/>
…
        <feature xmlns="http://www.w3.org/ns/sparql-service-description#"
rdf:resource="http://www.bigdata.com/rdf#/features/KB/Mode/Sids"/>
        <feature xmlns="http://www.w3.org/ns/sparql-service-description#"
rdf:resource="http://www.bigdata.com/rdf#/features/KB/TruthMaintenance"/>

If I now try to upload ‘bob’, I get the following error:

$ curl -D- -H 'Content-Type: text/turtle' --upload-file bob.tut -X POST '
http://localhost:9999/bigdata/namespace/test/sparql/test/sparql?context-uri=http://example.org/tbox'

HTTP/1.1 100 Continue

HTTP/1.1 500 Server Error
Content-Type: text/plain
Transfer-Encoding: chunked
Server: Jetty(9.2.3.v20140905)

INSERT-WITH-BODY: baseURI=
http://192.168.59.3:9999/bigdata/namespace/test/sparql, context-uri=[
http://example.org/tbox]
java.util.concurrent.ExecutionException: org.openrdf.rio.RDFParseException:
IRI included an unencoded space: '32' [line 5]
….

Looks like the RDF parser didn’t get the memo that I’m sending RDR data,
but I have no idea what I’m doing wrong, nor apparently what I'm doing -
period :)

Any help would be greatly appreciated.

Cheers,
-max