I tried to use the path to the .ttl file in the assembler:
## Base data in TDB.
:tdbDataset rdf:type tdb2:DatasetTDB2 ;
tdb2:location "/Users/luca/Downloads/Data" ;
.
It loads the data. However, unfortunately the reasoner does not work. If I
run the following simple query on the
attached .ttl file, the inference hasBrother is not provided:
PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX owl: <http://www.w3.org/2002/07/owl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
PREFIX prova: <http://www.example.it/prova/>
SELECT ?subject ?object
WHERE { ?subject prova:hasBrother ?object }
Could you please run that query on your fuseki and see if it works for you?
See attached the .ttl file.
As I mentioned in my first email, I am sure that the .ttl file is correct
as with Protegè and Pellet I could
get the inference workin.
Thanks for all your support
Luca
-----------------------------------------------------------------------------------------
*Luca Turchet*
Associate Professor
Head of the Creative, Intelligent & Multisensory Interactions Laboratory
*https://www.cimil.disi.unitn.it/* <https://www.cimil.disi.unitn.it/>
Department of Information Engineering and Computer Science
University of Trento
Via Sommarive 9 - 38123 Trento - Italy
E-mail: luca.turc...@unitn.it
Tel: +39 0461 283792
Il giorno mer 23 feb 2022 alle ore 12:28 Luca Turchet <luca.turc...@unitn.it>
ha scritto:
> For the moment I don't use a TDB2, but a regular .ttl file.
> Could you please send me the assembler modified to use the ttl file?
>
> Also, is there a way to use both the --conf and --file options together?
>
> Cheers
>
> Luca
>
>
> -----------------------------------------------------------------------------------------
>
> *Luca Turchet*
> Associate Professor
> Head of the Creative, Intelligent & Multisensory Interactions Laboratory
> *https://www.cimil.disi.unitn.it/* <https://www.cimil.disi.unitn.it/>
>
> Department of Information Engineering and Computer Science
> University of Trento
> Via Sommarive 9 - 38123 Trento - Italy
>
> E-mail: luca.turc...@unitn.it
> Tel: +39 0461 283792
>
>
>
> Il giorno mer 23 feb 2022 alle ore 12:19 Luca Turchet <
> luca.turc...@unitn.it> ha scritto:
>
>> Ok received. I proceed and let you know
>>
>> Luca
>>
>>
>> -----------------------------------------------------------------------------------------
>>
>> *Luca Turchet*
>> Associate Professor
>> Head of the Creative, Intelligent & Multisensory Interactions Laboratory
>> *https://www.cimil.disi.unitn.it/* <https://www.cimil.disi.unitn.it/>
>>
>> Department of Information Engineering and Computer Science
>> University of Trento
>> Via Sommarive 9 - 38123 Trento - Italy
>>
>> E-mail: luca.turc...@unitn.it
>> Tel: +39 0461 283792
>>
>>
>>
>> Il giorno mer 23 feb 2022 alle ore 12:16 Lorenz Buehmann <
>> buehm...@informatik.uni-leipzig.de> ha scritto:
>>
>>> To speedup the process I uploaded a tarball containing
>>>
>>> - the extracted Fuseki 4.4.0 with the necessary Openllet Jars
>>>
>>> - the assembler config
>>>
>>> - please set FUSEKI_BASE then run the server with --conf assembler.ttl
>>>
>>> - and of course modify the assembler file to link to your TDB2 location
>>> path
>>>
>>> Link: https://www.file.io/R2ls/download/7YKjIFR0eWyb
>>>
>>>
>>> On 23.02.22 12:05, Lorenz Buehmann wrote:
>>> >
>>> > On 23.02.22 11:54, Luca Turchet wrote:
>>> >> So, firstly mvn --version provided the JDK 17.02, but the JDK version
>>> >> can
>>> >> be set with "export JAVA_HOME= "
>>> >>
>>> >> I installed JDK 11 and used the POM.xml configuration you suggested.
>>> >> I also
>>> >> exported the JAVA_HOME in the shell session to make sure
>>> >> that JDK 11 is used (with export
>>> >>
>>> JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-11.0.13.jdk/Contents/Home/).
>>>
>>> >>
>>> >> I got only the error :
>>> >> ERROR: Type 'openllet help' for usage.
>>> >
>>> > what did you do here? why would you get this error? This looks more
>>> > like a commandline script call?
>>> >
>>> > You should simply call (just skip the test for speedup) to build the
>>> > Openllet project:
>>> >
>>> > mvn clean install -Dmaven.test.skip=true
>>> >
>>> > but follow the instruction of my previous email, you have to put the
>>> > Jar file generated in openllet/distribution/target to the Fuseki
>>> > classpath
>>> >
>>> >>
>>> >> No more information in the output. I repeated with JDK 13 getting the
>>> >> same
>>> >> error.
>>> >>
>>> >> it would be great to port fuseki to JDK 17 as JDK 11 is pretty old.
>>> >>
>>> >> Luca
>>> >>
>>> >>
>>> -----------------------------------------------------------------------------------------
>>>
>>> >>
>>> >>
>>> >> *Luca Turchet*
>>> >> Associate Professor
>>> >> Head of the Creative, Intelligent & Multisensory Interactions
>>> Laboratory
>>> >> *https://www.cimil.disi.unitn.it/* <https://www.cimil.disi.unitn.it/>
>>> >>
>>> >> Department of Information Engineering and Computer Science
>>> >> University of Trento
>>> >> Via Sommarive 9 - 38123 Trento - Italy
>>> >>
>>> >> E-mail: luca.turc...@unitn.it
>>> >> Tel: +39 0461 283792
>>> >>
>>> >>
>>> >>
>>> >> Il giorno mer 23 feb 2022 alle ore 10:29 Lorenz Buehmann <
>>> >> buehm...@informatik.uni-leipzig.de> ha scritto:
>>> >>
>>> >>> Ok, I'm still on JDK 11 and this worked for me - so you could give
>>> it a
>>> >>> try. If not then can't you set the compiler plugin to 13? Although
>>> I'm
>>> >>> wondering why it failed with JDK 17 if you have it installed. Did you
>>> >>> also set this as your current JDK?
>>> >>>
>>> >>> mvn --version should have shown Java 17 then
>>> >>>
>>> >>> But let's try with JDK 11 first, Fuseki distribution is currently
>>> also
>>> >>> on Java 11
>>> >>>
>>> >>> On 23.02.22 10:22, Luca Turchet wrote:
>>> >>>> I have amended the file as you suggested (and even modifying
>>> >>>> the aven-enforcer-plugin <version> to 3.0.0) but the result is the
>>> >>>> same.
>>> >>>>
>>> >>>> I attach the pom POM file.
>>> >>>>
>>> >>>> However, I don't have installed JDK version 11, or 15. I have 13 14,
>>> >>>> 16 and 17. Do I need to install JDK version 11?
>>> >>>>
>>> >>>> Cheers
>>> >>>>
>>> >>>> Luca
>>> >>>>
>>> >>>>
>>> >>>
>>> -----------------------------------------------------------------------------------------
>>>
>>> >>>
>>> >>>> *Luca Turchet*
>>> >>>> Associate Professor
>>> >>>> Head of the Creative, Intelligent & Multisensory Interactions
>>> >>>> Laboratory
>>> >>>> *https://www.cimil.disi.unitn.it/* <
>>> https://www.cimil.disi.unitn.it/>
>>> >>>>
>>> >>>> Department of Information Engineering and Computer Science
>>> >>>> University of Trento
>>> >>>> Via Sommarive 9 - 38123 Trento - Italy
>>> >>>>
>>> >>>> E-mail: luca.turc...@unitn.it
>>> >>>> Tel: +39 0461 283792
>>> >>>>
>>> >>>>
>>> >>>>
>>> >>>> Il giorno mer 23 feb 2022 alle ore 10:04 Lorenz Buehmann
>>> >>>> <buehm...@informatik.uni-leipzig.de> ha scritto:
>>> >>>>
>>> >>>> I checked Openllet, it has been set to Java 17 - you can
>>> >>>> change it in
>>> >>>> the POM file:
>>> >>>>
>>> >>>> - set maven-compiler-plugin source and target entry to 11
>>> >>>> - change maven-enforcer-plugin Java rule to
>>> >>> <version>[10,15)</version>
>>> >>>> Note, the fork is currently set to Jena 4.2.X, not sure if it
>>> >>>> will
>>> >>>> have
>>> >>>> conflicts when you use it with latest Jena
>>> >>>>
>>> >>>> On 23.02.22 08:02, Lorenz Buehmann wrote:
>>> >>>> > Hi,
>>> >>>> >
>>> >>>> > follow up from your Stackoverflow thread, the Jena built-in
>>> >>>> reasoners
>>> >>>> > do not support SWRL rules - what exactly is supported by
>>> >>>> which OWL
>>> >>>> > reasoner is documented here:
>>> >>>> > https://jena.apache.org/documentation/inference/#owl
>>> >>>> >
>>> >>>> > None of them is a full OWL DL reasoner, that's only covered
>>> via
>>> >>>> > Pellet. And Pellet does also support SWRL. I suggested to
>>> use a
>>> >>>> Pellet
>>> >>>> > fork like Openllet because the official Pellet reasoner is
>>> >>>> still on
>>> >>>> > Jena 2.x/3.x and any further version of Pellet is closed
>>> source
>>> >>>> being
>>> >>>> > integrated in Stardog triple store.
>>> >>>> >
>>> >>>> > Openllet does support Jena 4.x so in theory it should work.
>>> It
>>> >>>> would
>>> >>>> > be helpful to show your Java/Maven issues, otherwise it's a
>>> >>>> wild
>>> >>>> guess.
>>> >>>> >
>>> >>>> > The other option I suggested was to use the Jena rules
>>> >>>> instead of
>>> >>>> > SWRL. I understand though that if you want to stick to W3C
>>> >>>> standards
>>> >>>> > (technically SWRL isn't) this won't be an option for you.
>>> >>>> >
>>> >>>> > Note, the whole reasoner will happen mostly in-memory - don't
>>> >>>> expect
>>> >>>> > OWL DL reasoning to scale in a large dataset in a triple
>>> store-
>>> >>>> that's
>>> >>>> > why people designed profiles like OWL RL which can be easily
>>> >>>> mapped to
>>> >>>> > rule based inference and don't need a tableau algorithm or
>>> the
>>> >>> like.
>>> >>>> >
>>> >>>> > Cheers,
>>> >>>> >
>>> >>>> > Lorenz
>>> >>>> >
>>> >>>> > On 22.02.22 18:36, Luca Turchet wrote:
>>> >>>> >> Dear list members,
>>> >>>> >> I am trying to integrate a reasoner in the Fuseki server. I
>>> >>>> first tried
>>> >>>> >> openllet but there are some technical issues with java and
>>> >>>> maven which
>>> >>>> >> currently prevent the openllet installation on a mac.
>>> >>>> >>
>>> >>>> >> So I tried to launch fuseki with the --conf option using
>>> >>>> one of
>>> >>> the
>>> >>>> >> reasoners listed at the bottom of this page:
>>> >>>> >>
>>> >>>>
>>> >>>
>>> https://jena.apache.org/documentation/fuseki2/fuseki-configuration.html
>>> >>>> >>
>>> >>>> >> in particular, I tried the examples
>>> >>>> >>
>>> >>>> >> - config-inference-1.ttl
>>> >>>> >>
>>> >>>> <
>>> >>>
>>> https://github.com/apache/jena/blob/main/jena-fuseki2/examples/config-inference-1.ttl
>>> >>>
>>> >>>> >> - config-inference-2.ttl
>>> >>>> >>
>>> >>>> <
>>> >>>
>>> https://github.com/apache/jena/blob/main/jena-fuseki2/examples/config-inference-2.ttl
>>> >>>
>>> >>>> >>
>>> >>>> >> which are provided in the documentation:
>>> >>>> >>
>>> https://github.com/apache/jena/tree/main/jena-fuseki2/examples
>>> >>>> >>
>>> >>>> >> When performing the query which should return the result of
>>> an
>>> >>>> >> inference I
>>> >>>> >> don't get the expected result, like if the reasoner was not
>>> >>>> integrated.
>>> >>>> >> I am sure that the triplestore I am using is correct and
>>> >>>> contains the
>>> >>>> >> rule
>>> >>>> >> as I have tested it in Protegè using the Snap SPARQL query
>>> tab
>>> >>>> with the
>>> >>>> >> Pellet reasoner activated.
>>> >>>> >>
>>> >>>> >> What am I doing wrong? I launch the server with
>>> >>>> >> ./fuseki-server
>>> >>>> >> --conf=/Users/luca/semanticweb/prova/config-inference-1.ttl
>>> >>>> >>
>>> >>>> >> Thanks in advance
>>> >>>> >>
>>> >>>> >> Best wishes
>>> >>>> >>
>>> >>>> >> Luca
>>> >>>> >>
>>> >>>> >>
>>> >>>>
>>> >>>
>>> -----------------------------------------------------------------------------------------
>>> >>>> >>
>>> >>>> >>
>>> >>>> >> *Luca Turchet*
>>> >>>> >> Associate Professor
>>> >>>> >> Head of the Creative, Intelligent & Multisensory
>>> Interactions
>>> >>>> Laboratory
>>> >>>> >> *https://www.cimil.disi.unitn.it/*
>>> >>>> <https://www.cimil.disi.unitn.it/>
>>> >>>> >>
>>> >>>> >> Department of Information Engineering and Computer Science
>>> >>>> >> University of Trento
>>> >>>> >> Via Sommarive 9 - 38123 Trento - Italy
>>> >>>> >>
>>> >>>> >> E-mail: luca.turc...@unitn.it
>>> >>>> >> Tel: +39 0461 283792
>>> >>>> >>
>>> >>>>
>>>
>>
