Hi Rupert, I think is this one: http://dbpedia.org/sparql?query=SELECT+DISTINCT+?id+%0AWHERE+%7B+%0A++%7B+%0A++++?id+%3Chttp://www.w3.org/1999/02/22-rdf-syntax-ns%23type%3E+%3Chttp://dbpedia.org/ontology/Person%3E+.+%0A++++?id+%3Chttp://www.w3.org/2000/01/rdf-schema%23label%3E+?tmp1+.+%0A++++++?tmp1+bif:contains+'%22Plantar%22'+.+%0A%7D+%0A%7D+%0AORDER+BY+DESC+(+%3CLONG::IRI_RANK%3E+(?id)+)+%0ALIMIT+20+%0A&format=application/sparql-results%2Bjson
In fact before that exception I have this one: 29.08.2011 08:51:54.939 *WARN* [1605442425@qtp-23480987-1] org.apache.felix.http.jetty /engines/ (org.apache.stanbol.enhancer.servicesapi.EngineException: 'NamedEntityTaggingEngine' failed to process content item 'urn:content-item-sha1-feef2e6a8bb37b08ff71e7b2d27582ae4c640adb' with type 'text/plain': org.apache.stanbol.entityhub.servicesapi.site.ReferencedSiteException: Unable to execute query on remote site http://dbpedia.org/sparql with entitySearcher org.apache.stanbol.entityhub.searcher.VirtuosoSearcher!) org.apache.stanbol.enhancer.servicesapi.EngineException: 'NamedEntityTaggingEngine' failed to process content item 'urn:content-item-sha1-feef2e6a8bb37b08ff71e7b2d27582ae4c640adb' with type 'text/plain': org.apache.stanbol.entityhub.servicesapi.site.ReferencedSiteException: Unable to execute query on remote site http://dbpedia.org/sparql with entitySearcher org.apache.stanbol.entityhub.searcher.VirtuosoSearcher! (...) Caused by: java.io.IOException: Server returned HTTP response code: 500 for URL: http://dbpedia.org/sparql?query=SELECT+DISTINCT+?id+%0AWHERE+%7B+%0A++%7B+%0A++++?id+%3Chttp://www.w3.org/1999/02/22-rdf-syntax-ns%23type%3E+%3Chttp://dbpedia.org/ontology/Person%3E+.+%0A++++?id+%3Chttp://www.w3.org/2000/01/rdf-schema%23label%3E+?tmp1+.+%0A++++++?tmp1+bif:contains+'%22Plantar%22'+.+%0A%7D+%0A%7D+%0AORDER+BY+DESC+(+%3CLONG::IRI_RANK%3E+(?id)+)+%0ALIMIT+20+%0A&format=application/sparql-results%2Bjson (...) And then I have lots of these (at least 20): 29.08.2011 08:53:35.924 *INFO* [1605442425@qtp-23480987-1] org.apache.stanbol.enhancer.servicesapi.helper.EnhancementEngineHelper No Triple found for <urn:enhancement-fa2cfb8d-5cad-5e80-ea03-b2b39be6f404> and property <http://purl.org/dc/terms/type>! -> return null 29.08.2011 08:53:35.924 *WARN* [1605442425@qtp-23480987-1] org.apache.stanbol.enhancer.engines.entitytagging.impl.NamedEntityTaggingEngine Unable to process TextAnnotation <urn:enhancement-fa2cfb8d-5cad-5e80-ea03-b2b39be6f404> because property< http://purl.org/dc/terms/type> is not present Thanks! David On Mon, Aug 29, 2011 at 4:44 PM, Rupert Westenthaler < [email protected]> wrote: > Hi David > > To me it looks like that the SPARQL endpoint of dbpedia does not > return valid JSON as results of a SPARQL CONSTRUCT query. > > I think in the error.log file (/sling/logs/error.log) should provide > some additional information (such as the query sent to > "http://dbpedia.org/sparql";. > You could e.g. use your browser to see the returned results yourself. > If you provide such information I could also make some tests and help. > > best > Rupert > > On Mon, Aug 29, 2011 at 11:20 AM, Bertrand Delacretaz > <[email protected]> wrote: > > Hi David, > > > > On Mon, Aug 29, 2011 at 10:58 AM, David Riccitelli > > <[email protected]> wrote: > >> ...I'm having an issue with Stanbol (r1153390), the analysis of a text > fails > >> 100% of the times with an exception. The root cause seems to > >> be: org.codehaus.jettison.json.JSONException: A JSONObject text must > begin > >> with '{' at character 0 of > >> > >> but how do I track down the issue?... > > > > Seems like it's happening here: > > > > org.apache.stanbol.entityhub.servicesapi.site.ReferencedSiteException: > > Unable to execute query on remote site http://dbpedia.org/sparql with > > entitySearcher org.apache.stanbol.entityhub.searcher.VirtuosoSearcher!... > > > > I'd try debugging that VirtuosoSearcher and especially have a look a > > that what sparql endpoint is returning. > > > > -Bertrand > > > > > > -- > | Rupert Westenthaler [email protected] > | Bodenlehenstraße 11 ++43-699-11108907 > | A-5500 Bischofshofen > -- David Riccitelli ----- Skype: ziodave Twitter: @ziodave LinkedIn: http://it.linkedin.com/in/riccitelli ----- Interact SpA Via A. Bargoni 78 (scala F) 00153 Roma T +39 06 58318 301 F +39 06 58318 303
