Hi Development indicate that the directType is a Sesame specific class type not supported in other RDF query engines like Virtuoso and Jena etc.
Best Regards Hugh Williams Professional Services OpenLink Software Web: http://www.openlinksw.com Support: http://support.openlinksw.com Forums: http://boards.openlinksw.com/support Twitter: http://twitter.com/OpenLink On 6 Jun 2010, at 09:37, bluestar wrote: > hi Hugh, > > it seems to work now! i was trying to execute a very simple > SELECT DISTINCT ?p WHERE {?s ?p ?o} > > i have since tried other things and it seems to be doing the right thing > now. thanks for all this. > > in the end i had to repackage sesame with all the dependant virtuoso jars > into a war file ... and redeployed. i also restarted virtuoso - i dont > think this was necesary. then created another repo in sesame but this time > i used dba user. > > also i found in my logs lots of these errors: > SQ033: SELECT access denied for column GI_SUPER of table > DB.DBA.SYS_ROLE_GRANTS, user ID 107 > (ie when i was not using dba. my user has all permissions, ie > select/update/sponge. has DAV permissions as well). > > > last question: how do i determine the directType of a subject in a triple? > sorry i keep mentioning sesame but anyway.. sesame generated a "x > directType y" triple; how can i achieve similar with vituoso? i dont see > it in the workbench and querying it doesnt find anything. > > at the moment it seems i am getting back the super class only which is > valid but sometimes i want the direct type. > > thanks. > > > > > >> Hi >> >> What is the query you are attempting to run that is resulting in this >> "unsupport query type" error ? >> >> Have you been able to confirm basic connectivity of the Sesame HTTP >> Repository to Virtuoso and its ability to run a simple query and explore >> the Virtuoso server as detailed in the documentation at [1] ? >> >> Best Regards >> Hugh Williams >> Professional Services >> OpenLink Software >> Web: http://www.openlinksw.com >> Support: http://support.openlinksw.com >> Forums: http://boards.openlinksw.com/support >> Twitter: http://twitter.com/OpenLink >> >> [1] >> http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtSesame2HttpRepository >> >> On 5 Jun 2010, at 07:20, bluestar wrote: >> >>> hi Hugh, >>> >>> thanks for this. i got somewhere at least. >>> >>> it seems sesame does not know about virtouso queries. >>> >>> i get this exception trying execute a query via sesame workbench. >>> >>> any suggestions? >>> >>> javax.servlet.ServletException: >>> org.openrdf.repository.http.HTTPQueryEvaluationException: Unsupported >>> query type: virtuoso.sesame2.driver.VirtuosoQuery >>> >>> org.openrdf.workbench.base.TransformationServlet.service(TransformationServlet.java:80) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:93) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:131) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:90) >>> >>> org.openrdf.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:97) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:52) >>> >>> root cause >>> >>> org.openrdf.repository.http.HTTPQueryEvaluationException: Unsupported >>> query type: virtuoso.sesame2.driver.VirtuosoQuery >>> >>> org.openrdf.repository.http.HTTPTupleQuery.evaluate(HTTPTupleQuery.java:48) >>> >>> org.openrdf.workbench.commands.QueryServlet.evaluateTupleQuery(QueryServlet.java:208) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:146) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:99) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:72) >>> >>> org.openrdf.workbench.base.TransformationServlet.doPost(TransformationServlet.java:87) >>> >>> org.openrdf.workbench.base.TransformationServlet.service(TransformationServlet.java:70) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:93) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:131) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:90) >>> >>> org.openrdf.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:97) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:52) >>> >>> root cause >>> >>> org.openrdf.repository.RepositoryException: Unsupported query type: >>> virtuoso.sesame2.driver.VirtuosoQuery >>> >>> org.openrdf.http.client.HTTPClient.getTupleQueryResult(HTTPClient.java:992) >>> org.openrdf.http.client.HTTPClient.sendTupleQuery(HTTPClient.java:414) >>> org.openrdf.http.client.HTTPClient.sendTupleQuery(HTTPClient.java:397) >>> >>> org.openrdf.repository.http.HTTPTupleQuery.evaluate(HTTPTupleQuery.java:41) >>> >>> org.openrdf.workbench.commands.QueryServlet.evaluateTupleQuery(QueryServlet.java:208) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:146) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:99) >>> >>> org.openrdf.workbench.commands.QueryServlet.service(QueryServlet.java:72) >>> >>> org.openrdf.workbench.base.TransformationServlet.doPost(TransformationServlet.java:87) >>> >>> org.openrdf.workbench.base.TransformationServlet.service(TransformationServlet.java:70) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:93) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:131) >>> >>> org.openrdf.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:90) >>> >>> org.openrdf.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:97) >>> org.openrdf.workbench.base.BaseServlet.service(BaseServlet.java:40) >>> >>> org.openrdf.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:52) >>> >>> note The full stack trace of the root cause is available in the Apache >>> Tomcat/6.0.24 logs. >>> >>> >>> >>>> Hi >>>> >>>> As indicated in the examples in the Virtuoso inferencing documentation >>>> at >>>> [1] you would need to load your OWL files into Virtuoso, which being in >>>> RDF/XML can be done with the Virtuoso RDF_LOAD_RDFXML() function as >>>> detailed at [2]. Once the data is loaded into Virtuoso you can then >>>> used >>>> the rdfs_rule_set() function to create the rule sets in Virtuoso, at >>>> which >>>> point when creating the Virtuoso Sesame HTTP Repository you can then >>>> set >>>> the "Inference RuleSet name" parameter to the name of the rule set to >>>> be >>>> used ie "upper" in your example below. Note also when using the SPARQL >>>> query interface of the OpenRDF Workbench, you also need to check the >>>> "Include inferred statements" check box of the rule set to be applied >>>> against the query being run. >>>> >>>> I hope this answers your question, as that is how I got this to work in >>>> the OpenRDF Workbench using the first example in section 16.8.8.1 of >>>> the >>>> the documentation at [1] ... >>>> >>>> Best Regards >>>> Hugh Williams >>>> Professional Services >>>> OpenLink Software >>>> Web: http://www.openlinksw.com >>>> Support: http://support.openlinksw.com >>>> Forums: http://boards.openlinksw.com/support >>>> Twitter: http://twitter.com/OpenLink >>>> >>>> [1] >>>> http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html#rdfsparqlruleexamples >>>> [2] http://docs.openlinksw.com/virtuoso/fn_rdf_load_rdfxml.html >>>> >>>> On 4 Jun 2010, at 04:13, bluestar wrote: >>>> >>>>> Hi Hugh, >>>>> >>>>> thanks for this. it confirms what i was thinking. and yes i am using >>>>> the >>>>> sesame provider as outlined in the link you gave me. >>>>> >>>>> however my next question is; how do i do it using this rdfs_rule_set >>>>> function; i am not really sure about this. >>>>> >>>>> for example my owl files are very similar to >>>>> http://proton.semanticweb.org/2005/04/protonu, >>>>> http://proton.semanticweb.org/2005/04/protont, >>>>> http://proton.semanticweb.org/2005/04/protons >>>>> >>>>> how would i do this using these owl files? >>>>> >>>>> like this: >>>>> >>>>> rdfs_rule_set ("upper", >>>>> "http://proton.semanticweb.org/2005/04/protonu";)? >>>>> >>>>> if so this seems to have no effect at all. >>>>> >>>>> Please let me know. >>>>> >>>>> cheers. >>>>> >>>>> >>>>>> Hi >>>>>> >>>>>> If using the Virtuoso Sesame HTTP repository as detailed at [1], then >>>>>> you >>>>>> can create your inference rules in Virtuoso using the rdfs_rule_set >>>>>> function as detailed at [2], then you can use the "Inference RuleSet >>>>>> name" >>>>>> parameter of the created Virtuoso Sesame HTTP repository to specify >>>>>> the >>>>>> inference rule set name to be used.created with the rdfs_rule_set >>>>>> function. >>>>>> >>>>>> Best Regards >>>>>> Hugh Williams >>>>>> Professional Services >>>>>> OpenLink Software >>>>>> Web: http://www.openlinksw.com >>>>>> Support: http://support.openlinksw.com >>>>>> Forums: http://boards.openlinksw.com/support >>>>>> Twitter: http://twitter.com/OpenLink >>>>>> >>>>>> [1] >>>>>> http://virtuoso.openlinksw.com/dataspace/dav/wiki/Main/VirtSesame2HttpRepository >>>>>> [2] >>>>>> http://docs.openlinksw.com/virtuoso/rdfsparqlrule.html#rdfsparqlrulemake >>>>>> >>>>>> On 3 Jun 2010, at 15:32, bluestar wrote: >>>>>> >>>>>>> hi, >>>>>>> >>>>>>> i am trying to use the Virtuoso sesame provider. how do i achieve >>>>>>> inferencing through this? >>>>>>> >>>>>>> I have been using sesame in-mem with direct type hierarchy, but now >>>>>>> moving >>>>>>> to Virtuoso. i want the same behaviour in virtuoso. >>>>>>> >>>>>>> i have 3 different owl files with the hierachy of all my classes; >>>>>>> plus >>>>>>> thousands of triples based on this. >>>>>>> >>>>>>> i can see there is a "Inference RuleSet name" field in the repo >>>>>>> creation >>>>>>> screen of Virtuoso sesame provider; what do i put in there? >>>>>>> will this enable inferencing? >>>>>>> >>>>>>> any suggestions will be greatly appreciated. >>>>>>> >>>>>>> thanks >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> ------------------------------------------------------------------------------ >>>>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>>>> lucky parental unit. See the prize list and enter to win: >>>>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>>>> _______________________________________________ >>>>>>> Virtuoso-users mailing list >>>>>>> Virtuoso-users@lists.sourceforge.net >>>>>>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> ------------------------------------------------------------------------------ >>>>> ThinkGeek and WIRED's GeekDad team up for the Ultimate >>>>> GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the >>>>> lucky parental unit. See the prize list and enter to win: >>>>> http://p.sf.net/sfu/thinkgeek-promo >>>>> _______________________________________________ >>>>> Virtuoso-users mailing list >>>>> Virtuoso-users@lists.sourceforge.net >>>>> https://lists.sourceforge.net/lists/listinfo/virtuoso-users >>>> >>>> >>> >>> >> >> > >
