Lars,
You have said you have HDT working in a different configuration. What
I'm trying to understand is difference between the two.
What was the configuration that did work?
Andy
On 24/02/18 13:18, Svensson, Lars wrote:
On Saturday, February 24, 2018 10:33 AM, Andy Seaborne [mailto:[email protected]]
wrote:
Please try putting
hdt:HDTGraph rdfs:subClassOf ja:Graph .
in inferencing.ttl
Done, and I still get the same exception when loading inferencing.ttl .
/Lars
On 24/02/18 08:00, Svensson, Lars wrote:
On Friday, February 23, 2018 11:26 PM, Andy Seaborne [mailto:[email protected]]
wrote:
On 23/02/18 17:08, Svensson, Lars wrote:
On Friday, February 23, 2018 3:22 PM, Andy Seaborne
[mailto:[email protected]]
wrote:
The necessary
# HDT Classes
hdt:HDTGraph rdfs:subClassOf ja:Graph .
is missing in the initial email.
They are on the classpath, too.
In their HDT fuseki example, there are two triples, ja:loadClass and
rdfs:subClassOf, for setup and they do not appear in the config file you
gave in the first email.
If the server run/config.ttl file has the ja:loadClass you should be OK
(maybe be not - adding
[] ja:loadClass "org.rdfhdt.hdtjena.HDTGraphAssembler" .
to configuration/inferencing.ttl is safe)
but I think the rdfs:subClassOf is necessary in
configuration/inferencing.ttl and can not be relied in to be picked up
from run/config.ttl.
I would expect to see:
@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 tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix ja: <http://jena.hpl.hp.com/2005/11/Assembler#> .
@prefix hdt: <http://www.rdfhdt.org/fuseki#> .
@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix : <#> .
# HDT Classes
hdt:HDTGraph rdfs:subClassOf ja:Graph .
<#standard> rdf:type fuseki:Service ;
fuseki:name "inferencing" ;
fuseki:serviceQuery "query" , "sparql" ;
fuseki:serviceReadGraphStore "data" ;
fuseki:dataset <#all> .
My apologies, I should have been more clear regarding my configuration.
I run this on Fuseki 3.4.0 and use three configuration files
* config.ttl (in /run)
* standard.ttl (my standard, non-inferencing configuration; in
/run/configuration;
SPARQL endpoint at http://my.server:3030/dataset.html?tab=query&ds=/standard)
* inferencing.tt. (my inferencing configuration; also in /run/configuration;
SPARQL
endpoint at http://my.server:3030/dataset.html?tab=query&ds=/inferencing)
config.ttl:
@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 hdt: <http://www.rdfhdt.org/fuseki#> .
[] rdf:type fuseki:Server ;
ja:loadClass "org.rdfhdt.hdtjena.HDTGraphAssembler" ;
hdt:HDTGraph rdfs:subClassOf ja:Graph .
inferencing.ttl
@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 hdt: <http://www.rdfhdt.org/fuseki#> .
@prefix tdb: <http://jena.hpl.hp.com/2008/tdb#> .
@prefix : <#> .
<#standard> rdf:type fuseki:Service ;
fuseki:name "inferencing" ;
fuseki:serviceQuery "query" , "sparql" ;
fuseki:serviceReadGraphStore "data" ;
fuseki:dataset <#all> .
<#all> rdf:type ja:RDFDataset ;
rdfs:label "All DNB data" ;
tdb:unionDefaultGraph true ;
ja:defaultGraph <#inf-dnb-all-graph> .
<#inf-dnb-all-graph> a ja:InfModel ;
ja:baseModel <#dnb-all-graph> ;
ja:reasoner [
ja:reasonerClass
"org.mindswap.pellet.jena.PelletReasonerFactory"
] .
<#dnb-all-graph> a hdt:HDTGraph ;
rdfs:label "DNB-All from HDT-File" ;
hdt:fileName "/path/to/my/HDTFile.hdt " .
When Fuseki loads inferencing.ttl it throws the AmbiguousSpecificTypeException.
/Lars
