Hello, I've got a problem running this query on fuseki 4.9.0 (basically, I'd like to delegate to Wikidata, the computation of the distance between two cities) :
PREFIX wd: http://www.wikidata.org/entity/ PREFIX owl: http://www.w3.org/2002/07/owl# PREFIX ex: http://example/ PREFIX wdt: http://www.wikidata.org/prop/direct/ PREFIX geof: http://www.opengis.net/def/geosparql/function/ SELECT * WHERE { ?ParisWDID owl:sameAs ex:Paris . ?BordeauxWDID owl:sameAs ex:Bordeaux . SERVICE https://query.wikidata.org/sparql { ?ParisWDID wdt:P625 ?ParisLoc . ?BordeauxWDID wdt:P625 ?BordeauxLoc . BIND(geof:distance(?ParisLoc,?BordeauxLoc) AS ?dist) } } ____________ Here is the content of my rdf graph: @prefix wd: http://www.wikidata.org/entity/ . @prefix owl: http://www.w3.org/2002/07/owl# . @prefix wdt: http://www.wikidata.org/prop/direct/ . @prefix ex: http://example/ . wd:Q90 owl:sameAs ex:Paris . wd:Q1479 owl:sameAs ex:Bordeaux . ____________ Here is the trace on the standard output: 17:44:59 INFO Fuseki :: [8] POST http://localhost:3030/sparql/sparql 17:44:59 INFO Fuseki :: [8] Query = PREFIX wd: http://www.wikidata.org/entity/ PREFIX owl: http://www.w3.org/2002/07/owl# PREFIX ex: http://example/ PREFIX wdt: http://www.wikidata.org/prop/direct/ PREFIX geof: http://www.opengis.net/def/geosparql/function/ SELECT * WHERE { ?ParisWDID owl:sameAs ex:Paris . ?BordeauxWDID owl:sameAs ex:Bordeaux . SERVICE https://query.wikidata.org/sparql { ?ParisWDID wdt:P625 ?ParisLoc . ?BordeauxWDID wdt:P625 ?BordeauxLoc . BIND(geof:distance(?ParisLoc,?BordeauxLoc) AS ?dist) } } 17:46:08 WARN Fuseki :: [8] RC = 500 : com.google.gson.stream.MalformedJsonException: Unterminated string at line 19922828 column 49 path $.results.bindings[855041].ParisLoc.value org.apache.jena.sparql.resultset.ResultSetException: com.google.gson.stream.MalformedJsonException: Unterminated string at line 19922828 column 49 path $.results.bindings[855041].ParisLoc.value at org.apache.jena.riot.rowset.rw.rs_json.RowSetJSONStreaming.moveToNext(RowSetJSONStreaming.java:214) ~[fuseki-server.jar:4.9.0] at org.apache.jena.riot.rowset.rw.rs_json.RowSetJSONStreaming.moveToNext(RowSetJSONStreaming.java:66) ~[fuseki-server.jar:4.9.0] ... at org.apache.jena.riot.rowset.rw.rs_json.IteratorRsJSON.computeNextActual(IteratorRsJSON.java:136) ~[fuseki-server.jar:4.9.0] at org.apache.jena.riot.rowset.rw.rs_json.IteratorRsJSON.moveToNext(IteratorRsJSON.java:72) ~[fuseki-server.jar:4.9.0] at org.apache.jena.atlas.iterator.IteratorSlotted.hasNext(IteratorSlotted.java:63) ~[fuseki-server.jar:4.9.0] at org.apache.jena.riot.rowset.rw.rs_json.RowSetJSONStreaming.computeNextActual(RowSetJSONStreaming.java:225) ~[fuseki-server.jar:4.9.0] at org.apache.jena.riot.rowset.rw.rs_json.RowSetJSONStreaming.moveToNext(RowSetJSONStreaming.java:210) ~[fuseki-server.jar:4.9.0] ... 112 more 17:46:08 INFO Fuseki :: [8] 500 Server Error (68,499 s) ____________ I verified that when replacing the variables ?ParisWDID and ?BordeauxWDID with their values, the query is processed correctly. Thus this query works: PREFIX wd: http://www.wikidata.org/entity/ PREFIX owl: http://www.w3.org/2002/07/owl# PREFIX ex: http://example/ PREFIX wdt: http://www.wikidata.org/prop/direct/ PREFIX geof: http://www.opengis.net/def/geosparql/function/ SELECT * WHERE { SERVICE https://query.wikidata.org/sparql { wd:Q90 wdt:P625 ?ParisLoc . wd:Q1479 wdt:P625 ?BordeauxLoc . BIND(geof:distance(?ParisLoc,?BordeauxLoc) AS ?dist) } } ____________ Thank you for any hint on what I did wrong Kind regards, Fano Orange Restricted ____________________________________________________________________________________________________________ Ce message et ses pieces jointes peuvent contenir des informations confidentielles ou privilegiees et ne doivent donc pas etre diffuses, exploites ou copies sans autorisation. Si vous avez recu ce message par erreur, veuillez le signaler a l'expediteur et le detruire ainsi que les pieces jointes. Les messages electroniques etant susceptibles d'alteration, Orange decline toute responsabilite si ce message a ete altere, deforme ou falsifie. Merci. This message and its attachments may contain confidential or privileged information that may be protected by law; they should not be distributed, used or copied without authorisation. If you have received this email in error, please notify the sender and delete this message and its attachments. As emails may be altered, Orange is not liable for messages that have been modified, changed or falsified. Thank you.
