I think there was some discussion regarding this extension [1] and somebody already started implemented something. But I can't find it
[1] http://mail-archives.apache.org/mod_mbox/jena-users/201607.mbox/%3CCAE35VmxXruBMy7tJM%2B4QBV3K2XnmgAue3enGkfEVcXY_RmNgkQ%40mail.gmail.com%3E > There is, however, a possible improvement in Jena parser. > It could skip over the faulty triple, and output a non empty graph with the > correct one. > > Since it should also report the faulty input, I guess this would be in > another new method. > > I guess also that writing a fault tolerant parser is not easy ... > > > 2017-01-19 11:23 GMT+01:00 Jean-Marc Vanel <[email protected]>: > >> Vielen Dank Lorenz >> >> Thanks for the accurate diagnosis and the bug report to Virtuoso. >> >> I was aware of the issue; >> I was testing from my semantic_forms application, >> were the exception catching has gone wrong recently (and Scala language >> does not require to catch exceptions). >> >> >> >> 2017-01-19 10:05 GMT+01:00 Lorenz B. <[email protected]>: >> >>> Hi, >>> >>> can you clarify what doesn't work? >>> >>> I tried your example and it would work, but I'm getting a parse >>> exception because DBpedia (resp. Virtuoso) still returns illegal data: >>> >>> Graph g = RDFDataMgr.loadGraph("http://dbpedia.org/resource/Rome";); >>> System.out.println(g.size()); >>> >>> >>> [line: 1863, col: 13] Failed to find a prefix name or keyword: >>> –(8211;0x2013) >>> Exception in thread "main" org.apache.jena.riot.RiotException: [line: >>> 1863, col: 13] Failed to find a prefix name or keyword: –(8211;0x2013) >>> at >>> org.apache.jena.riot.system.ErrorHandlerFactory$ErrorHandler >>> Std.fatal(ErrorHandlerFactory.java:136) >>> at >>> org.apache.jena.riot.lang.LangEngine.raiseException(LangEngine.java:165) >>> at org.apache.jena.riot.lang.LangEngine.nextToken(LangEngine. >>> java:108) >>> at >>> org.apache.jena.riot.lang.LangTurtleBase.triples(LangTurtleBase.java:248) >>> at >>> org.apache.jena.riot.lang.LangTurtleBase.triplesSameSubject( >>> LangTurtleBase.java:190) >>> at >>> org.apache.jena.riot.lang.LangTurtle.oneTopLevelElement(Lang >>> Turtle.java:46) >>> at >>> org.apache.jena.riot.lang.LangTurtleBase.runParser(LangTurtl >>> eBase.java:89) >>> at org.apache.jena.riot.lang.LangBase.parse(LangBase.java:42) >>> at >>> org.apache.jena.riot.RDFParserRegistry$ReaderRIOTLang.read(R >>> DFParserRegistry.java:179) >>> at org.apache.jena.riot.RDFDataMgr.process(RDFDataMgr.java:861) >>> at org.apache.jena.riot.RDFDataMgr.parse(RDFDataMgr.java:667) >>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:212) >>> at org.apache.jena.riot.RDFDataMgr.read(RDFDataMgr.java:105) >>> at org.apache.jena.riot.RDFDataMgr.loadGraph(RDFDataMgr.java:346) >>> >>> >>> >>> >>> If there is no parsing error (e.g.http://dbpedia.org/resource/Mars works >>> for me) the result is as expected: >>> >>> >>> Graph g = RDFDataMgr.loadGraph("http://dbpedia.org/resource/Mars";); >>> System.out.println(g.size()); >>> >>> Output: 347 >>> >>> >>> The issue was already reported by me, see [1], and [2] >>> >>> [1] https://github.com/openlink/virtuoso-opensource/issues/567 >>> [2] https://github.com/openlink/virtuoso-opensource/issues/569 >>> >>> >>> >>> Kind regards, >>> Lorenz >>> >>>> Reading a dbPedia resource with e.g. RDFDataMgr.loadGraph() does not >>>> currently work (it used to work with Jena 3.1.1 ). >>>> Apparently this is because of the 303 redirection. >>>> Is there another call in Jena API to handle redirections and accepting >>> RDF >>>> MIME types ? >>>> >>>> wget --save-headers --header='Accept: application/rdf+xml' >>>> http://dbpedia.org/resource/Rome >>>> --2017-01-19 09:30:08-- http://dbpedia.org/resource/Rome >>>> Résolution de dbpedia.org (dbpedia.org)… 194.109.129.58 >>>> Connexion à dbpedia.org (dbpedia.org)|194.109.129.58|:80… connecté. >>>> requête HTTP transmise, en attente de la réponse… *303 See Other* >>>> Emplacement : http://dbpedia.org/data/Rome.xml [suivant] >>>> --2017-01-19 09:30:08-- http://dbpedia.org/data/Rome.xml >>>> Réutilisation de la connexion existante à dbpedia.org:80. >>>> requête HTTP transmise, en attente de la réponse… 200 OK >>>> Taille : 1003627 (980K) [application/rdf+xml] >>>> Enregistre : «Rome.2» >>>> >>>> less Rome.2 >>>> HTTP/1.1 200 OK >>>> Date: Thu, 19 Jan 2017 08:30:08 GMT >>>> Content-Type: application/rdf+xml; charset=UTF-8 >>>> Content-Length: 1003627 >>>> Connection: keep-alive >>>> Vary: Accept-Encoding >>>> Server: Virtuoso/07.20.3217 (Linux) i686-generic-linux-glibc212-64 VDB >>>> Expires: Thu, 26 Jan 2017 08:30:08 GMT >>>> Link: <http://creativecommons.org/licenses/by-sa/3.0/>;rel="license",< >>>> http://dbpedia.org/data/Rome.n3>; rel="alternate"; type="text/n3"; >>>> title="Structured Descriptor Document (N3/Turtle format)", < >>>> http://dbpedia.org/data/Rome.json>; rel="alternate"; >>>> type="application/json"; title="Structured Descriptor Document (RDF/JSON >>>> format)", <http://dbpedia.org/data/Rome.atom>; rel="alternate"; >>>> type="application/atom+xml"; title="OData (Atom+Feed format)", < >>>> http://dbpedia.org/data/Rome.jsod>; rel="alternate"; >>>> type="application/odata+json"; title="OData (JSON format)", < >>>> http://dbpedia.org/page/Rome>; rel="alternate"; type="text/html"; >>>> title="XHTML+RDFa", <http://dbpedia.org/resource/Rome>; rel=" >>>> http://xmlns.com/foaf/0.1/primaryTopic";, <http://dbpedia.org/resource/R >>> ome>; >>>> rev="describedby", < >>>> http://mementoarchive.lanl.gov/dbpedia/timegate/http://dbped >>> ia.org/data/Rome.xml>; >>>> rel="timegate" >>>> X-SPARQL-default-graph: http://dbpedia.org >>>> Cache-Control: max-age=604800 >>>> Access-Control-Allow-Origin: * >>>> Access-Control-Allow-Credentials: true >>>> Access-Control-Allow-Methods: GET, POST, OPTIONS >>>> Access-Control-Allow-Headers: >>>> DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If >>> -Modified-Since,Cache-Control,Content-Type,Accept-Encoding >>>> Accept-Ranges: bytes >>>> >>>> <?xml version="1.0" encoding="utf-8" ?> >>>> <rdf:RDF >>>> xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"; >>>> ... >>>> >>> -- >>> Lorenz Bühmann >>> AKSW group, University of Leipzig >>> Group: http://aksw.org - semantic web research center >>> >>> >> >> -- >> Jean-Marc Vanel >> Profil: http://163.172.179.125:9111/display?displayuri=http%3A%2F% >> 2Fjmvanel.free.fr%2Fjmv.rdf%23me >> Déductions SARL - Consulting, services, training, >> Rule-based programming, Semantic Web >> +33 (0)6 89 16 29 52 <+33%206%2089%2016%2029%2052> >> Twitter: @jmvanel , @jmvanel_fr ; chat: irc://irc.freenode.net#eulergui >> > > -- Lorenz Bühmann AKSW group, University of Leipzig Group: http://aksw.org - semantic web research center
