Thanks Andy. qexec.setSelectContentType is what i was looking for.
Best Regards, Roshan > On 29 Jul 2015, at 09:56, Andy Seaborne <a...@apache.org> wrote: > > On 28/07/15 23:20, Roshan Bharath Das wrote: >> Thanks. >> But I would like to know if there is an option to encode in the URL so that >> I don't have to convert after receiving the data. Because fuseki server can >> give the output data in xml, text, json, csv form. > > Not the URL - it's done with content negotiation (many systems including > Fuseki do allow something like ?output= but it's not in the standard) > > QueryEngineHTTP qexec = > (QueryEngineHTTP) QueryExecutionFactory.sparqlService(uri, query); > // request JSON results > qexec.setSelectContentType(WebContent.contentTypeResultsJSON); > ResultSet results = qexec.execSelect(); > > >>> Query query = QueryFactory.create(queryString); > >>> QueryExecution qe = QueryExecutionFactory.sparqlService(linkedmdb,query); > >>> ResultSet result = qe.execSelect(); > >>> The result is in XML format and I want it to be in JSON format. > > Not exactly - the printing of the ResultSet object is in XML but that is > different from what the server produced which might be XML, JSON, TSV. It is > parsed on receipt to an internal form then be formatted for output. The > parsing and conversion is not expensive and will stream if possible. > > So as Martynas says, ResultSetFormatter.outputAsJSON() > > If you don't want the conversion not internal java ResultSet, > you just make a call direct with HTTP GET and read the input stream. > > Jena's packaging up of common uses (for jena) of HTTP is in HttpOps. > > Andy > >> >> Best Regards, >> Roshan >> On Jul 28, 2015 10:03 PM, "Martynas Jusevičius" <marty...@graphity.org> >> wrote: >> >>> Roshan, >>> >>> try ResultSetFormatter.outputAsJSON() >>> >>> https://jena.apache.org/documentation/javadoc/arq/com/hp/hpl/jena/query/ResultSetFormatter.html#outputAsJSON(com.hp.hpl.jena.query.ResultSet) >>> >>> On Tue, Jul 28, 2015 at 9:18 PM, Roshan Bharath Das >>> <roshanbharath...@gmail.com> wrote: >>>> Hello, >>>> >>>> How can I decide to get the query result format for a sparqlService in >>> JSON for example?. >>>> >>>> Below is my code: >>>> Query query = QueryFactory.create(queryString); >>>> QueryExecution qe = QueryExecutionFactory.sparqlService(linkedmdb,query); >>>> ResultSet result = qe.execSelect(); >>>> The result is in XML format and I want it to be in JSON format. >>>> >>>> Best Regards, >>>> Roshan >>>> >>>> >>> >> >
