comparison rdf/SimpleSPARQLQuery.cpp @ 511:7207e3eba44f sv-v1.4rc1

* Ensure SimpleSPARQLQuery stores an error string properly when query
  fails -- so (apart from anything else) RDFImporter::identifyDocumentType
  returns a sensible result for non-RDF

         Profiler p("SimpleSPARQLQuery: Execute LIBRDF query");
         results = librdf_query_execute(query, m_redland.getModel(modelUri));
     }
 
     if (!results) {
-        cerr << "SimpleSPARQLQuery: LIBRDF query failed" << endl;
+        m_errorString = "RDF query failed";
         librdf_free_query(query);
         return list;
     }
 
     if (!librdf_query_results_is_bindings(results)) {
-        cerr << "SimpleSPARQLQuery: LIBRDF query has wrong result type (not bindings)" << endl;
+        m_errorString = "RDF query returned non-bindings results";
         librdf_free_query_results(results);
         librdf_free_query(query);
         return list;
     }