JSON query results: Allows "typed-literal" term type

Allows to parse e.g. Virtuoso query results

lib/sparesults/src/json.rs

@@ -316,7 +316,7 @@ impl<R: BufRead> JsonSolutionsReader<R> {
                         match s {
                             "uri" => t = Some(Type::Uri),
                             "bnode" => t = Some(Type::BNode),
-                            "literal" => t = Some(Type::Literal),
+                            "literal" | "typed-literal" => t = Some(Type::Literal),
                             #[cfg(feature = "rdf-star")]
                             "triple" => t = Some(Type::Triple),
                             _ => {

server/src/main.rs

@@ -1293,13 +1293,21 @@ mod tests {
     }
 
     #[test]
-    fn post_federated_query() {
+    fn post_federated_query_wikidata() {
         let request = Request::builder(Method::POST, "http://localhost/query".parse().unwrap())
             .with_header(HeaderName::CONTENT_TYPE, "application/sparql-query")
             .unwrap().with_body("SELECT * WHERE { SERVICE <https://query.wikidata.org/sparql> { <https://en.wikipedia.org/wiki/Paris> ?p ?o } }");
         ServerTest::new().test_status(request, Status::OK)
     }
 
+    #[test]
+    fn post_federated_query_dbpedia() {
+        let request = Request::builder(Method::POST, "http://localhost/query".parse().unwrap())
+            .with_header(HeaderName::CONTENT_TYPE, "application/sparql-query")
+            .unwrap().with_body("SELECT * WHERE { SERVICE <https://dbpedia.org/sparql> { <http://dbpedia.org/resource/Paris> ?p ?o } }");
+        ServerTest::new().test_status(request, Status::OK)
+    }
+
     #[test]
     fn post_update() {
         let request = Request::builder(Method::POST, "http://localhost/update".parse().unwrap())

testsuite/oxigraph-tests/sparql-results/manifest.ttl

@@ -13,6 +13,7 @@
     :results_tsv_duplicated_variables
     :results_json_ignored_keys
     :results_xml_ignored_keys
+    :results_json_typed_literal
     ) .
 
 :results_json_duplicated_variables rdf:type ox:NegativeJsonResultsSyntaxTest ;
@@ -34,3 +35,7 @@
 :results_xml_ignored_keys rdf:type ox:PositiveXmlResultsSyntaxTest ;
     mf:name "Ignore unknown attributes on tags" ;
     mf:action <ignored_keys.srx> .
+
+:results_json_typed_literal rdf:type ox:PositiveJsonResultsSyntaxTest ;
+    mf:name "typed-literal term type is allowed" ;
+    mf:action <typed_literal.srj> .

testsuite/oxigraph-tests/sparql-results/typed_literal.srj

@@ -0,0 +1,16 @@
+{
+  "head": {
+    "vars": ["s"]
+  },
+  "results": {
+    "bindings": [
+      {
+        "s": {
+          "type": "typed-literal",
+          "value": "foo",
+          "datatype": "http://example.com/dt"
+        }
+      }
+    ]
+  }
+}