Well it isn't exactly a common user request (you're the first in the 3.5 years or so I've been actively contributing to Jena) hence the lack of any user friendly API for this
If you think this is something you'd need to do regularly then we can always add an API for it. QueryExecutionFactory.sparqlService() always returns an instance of QueryEngineHTTP so you can always cast the QueryExecution you get from the sparqlService() call to this and then use specific method calls on QueryEngineHTTP to configure it further. However right now there aren't any method calls that would let you add HTTP headers, there are those that let you add additional request parameters (e.g. to pass custom parameters to endpoints e.g. server side timeouts) so adding complimentary APIs for HTTP headers would make sense. It would perhaps be useful to understand why you need to add custom HTTP headers in the first place? Rob On 26/01/2015 14:57, "Trevor Donaldson" <[email protected]> wrote: >Wow... ok. No clue how to do that. Guess I need to lookup custom request >interceptor >On Jan 26, 2015 5:49 PM, "Rob Vesse" <[email protected]> wrote: > >> Yes though not in any particular user friendly way >> >> The only way you can do it currently is by using the HttpAuthenticator >> subsystem (https://jena.apache.org/documentation/query/http-auth.html) >>and >> passing an instance of a custom authenticator that you wrote yourself to >> the QueryExecutionFactory.sparqlService() call >> >> The custom authenticator could take the AbstractHttpClient instance it >> receives and add a request interceptor that would add in the necessary >> headers to the outgoing requests though would need to be careful not to >> register itself multiple times since client instances can be reused. >> >> Rob >> >> On 26/01/2015 13:01, "Trevor Donaldson" <[email protected]> wrote: >> >> >I would like to add some Http Headers to the request that is made by >> >QueryExecutionFactory.sparqlService. Is this possible? Thanks >> >> >> >> >>
