Jena 3.0 and Pellet

[Chris Snyder]

Hello,

I’m trying out some different reasoners in my test application which is using Jena 3.0. I wanted to try Pellet so I updated my Maven to grab:
<dependency>
<groupId>com.github.ansell.pellet</groupId>
<artifactId>pellet-jena</artifactId>
<version>2.3.6-ansell</version>
</dependency>

When I try to access the reasoner factory it is apparent from the error that the Pellet jar is using its own Jena version. 
java.lang.ClassCastException: org.mindswap.pellet.jena.PelletReasonerFactory cannot be cast to org.apache.jena.reasoner.ReasonerFactory

And upon further inspection I see:
package org.mindswap.pellet.jena;

import com.hp.hpl.jena.ontology.OntModelSpec;
import com.hp.hpl.jena.rdf.model.Model;
import com.hp.hpl.jena.rdf.model.ModelFactory;
import com.hp.hpl.jena.rdf.model.Resource;
import com.hp.hpl.jena.reasoner.Reasoner;
import com.hp.hpl.jena.reasoner.ReasonerFactory;
import com.hp.hpl.jena.reasoner.ReasonerRegistry;
import com.hp.hpl.jena.vocabulary.RDFS;
import com.hp.hpl.jena.vocabulary.ReasonerVocabulary;

/**
* @author Evren Sirin
*
*/
public class PelletReasonerFactory implements ReasonerFactory {

and I can understand why there is a class cast error. Is there a version of the Pellet reasoner that I can plug in to an application already using the org.apache.jena.* ?

I saw that Nicolas Paris had a similar question for an earlier Jena version but that solution did not help.

Thanks,
Chris

[Chris Snyder]

To get Pellet to work with Jena 3.0.0 I believe I would need to fork the Pellet code and update all the Jena package paths in it to use the new “org.apache.jena.” location. Can anyone comment on that?

[Soheil Roshankish]

Ciao Chris,  

I have kind of the same problem, could you use jena and pellet together? do you have such a program in GitHub and can you share it please to see how it looks like? Thanks.

[Ignazio Palmisano]

I recommend using Openllet, it works with Jena 3.+

https://github.com/Galigator/openllet

> --
> You received this message because you are subscribed to the Google Groups "Pellet Users" group.
> To unsubscribe from this group and stop receiving emails from it, send an email to pellet-users...@googlegroups.com.
> To post to this group, send email to pellet...@googlegroups.com.
> To view this discussion on the web visit https://groups.google.com/d/msgid/pellet-users/7e717570-39f2-40fe-89c9-e25469c36e78%40googlegroups.com.