Search code examples
sparqlrdfjenasemantic-webfuseki

Fuseki owl reasoner not working with TDB

This is my configuration file

# Licensed under the terms of http://www.apache.org/licenses/LICENSE-2.0

## Fuseki Server configuration file.

@prefix :        <#> .
@prefix fuseki:  <http://jena.apache.org/fuseki#> .
@prefix rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs:    <http://www.w3.org/2000/01/rdf-schema#> .
@prefix ja:      <http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix tdb:     <http://jena.hpl.hp.com/2008/tdb#> .

[] rdf:type fuseki:Server ;
    fuseki:services (
        <#service1>
    )
.

# TDB
tdb:DatasetTDB  rdfs:subClassOf  ja:RDFDataset .
tdb:GraphTDB    rdfs:subClassOf  ja:Model .

[] ja:loadClass "com.hp.hpl.jena.tdb.TDB" .

<#service1> rdf:type fuseki:Service ;
fuseki:name                       "rs" ;       # http://host:port/ds
fuseki:serviceQuery               "sparql" ;   # SPARQL query service
fuseki:serviceQuery               "query" ;    # SPARQL query service (alt name)
fuseki:serviceUpdate              "update" ;   # SPARQL update service
fuseki:serviceUpload              "upload" ;   # Non-SPARQL upload service
fuseki:serviceReadWriteGraphStore "data" ;     # SPARQL Graph store protocol (read and write)
# A separate read-only graph store endpoint:
fuseki:serviceReadGraphStore      "get" ;      # SPARQL Graph store protocol (read only)
fuseki:dataset                   <#dataset> ;
.


<#dataset> rdf:type      tdb:DatasetTDB ;
    tdb:location "RS" ;
    ja:defaultGraph       <#model_inf> ;
.


<#model_inf> a ja:InfModel ;
    ja:baseModel <#tdbGraph> ;
    ja:reasoner [
    ja:reasonerURL <http://jena.hpl.hp.com/2003/OWLFBRuleReasoner>]
.


<#tdbGraph> rdf:type tdb:GraphTDB ;
    tdb:dataset <#RSDataSet> .

<#RSDataSet> rdf:type  tdb:DatasetTDB ;
    tdb:location "RS" ;
    tdb:unionDefaultGraph true ;
.

when I run fuseki (2.3) I can see my data set which uses TDB (not in memeory) I can upload my rdf triple, and even when i close fuseki and re open it, the triples are there, but the reaoner is not working

this is my data 

@prefix : <http://example.org/rs#>
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>

:A   rdfs:subClassOf :B .
:B   rdfs:subClassOf :C .
:i  a   :A .

when i do this query

select * where {
:i a ?e
}

I get just :A where i should have gotten :B and :C

whats wrong in my configuration please?

Solution

  • I guess you might not load the configuration file correctly, when you run the fuseki. Did you explicitly ask fuseki to use your configuration file?

    I have my fuseki running well with reasoning capability, by following the instruction in this tutorial (http://krr.cs.vu.nl/wp-content/uploads/2013/09/protege-fuseki-yasgui-manual.pdf). Check the page 3, and I hope you would solve your problem.