87         );

    87         );

    88         //TODO: return null if not found

    88         //TODO: return null if not found

    89         if($doc->isEmpty()) {

    89         if($doc->isEmpty()) {

    90             return null;

    90             return null;

    91         }

    91         }

    92 

    93 

    93         // clone the graph to force the URI

    94         // clone the graph to force the URI

    94         $DocumentKlass = $short?DocumentResult::class:Document::class;

    95         $DocumentKlass = $short?DocumentResult::class:Document::class;

    95         return new $DocumentKlass($docUri, new Graph($docUri, $doc->toRdfPhp()));

    96         return new $DocumentKlass($docUri, new Graph($docUri, $doc->toRdfPhp()));

    96 

    97