make the Tracker example do an actual sparql query (dump classes and relations)

diff --git a/cloudeebus/examples/crosswalk/example.html b/cloudeebus/examples/crosswalk/example.html
index 9bc30b4..a3448d1 100644 (file)
--- a/cloudeebus/examples/crosswalk/example.html
+++ b/cloudeebus/examples/crosswalk/example.html
@@ -9,6 +9,21 @@
             document.getElementById("output").innerHTML + "<br/>" + message;
       }
 
+       function CreateTableView(result) {
+               var table = document.createElement("table");
+               for (var i=0; i<result.length; i++) {
+                       var trNode = document.createElement("tr");
+                       for (var j=0; j<result[i].length; j++) {
+                               var tdNode = document.createElement("td");
+                               tdNode.cell = result[i][j];
+                               tdNode.appendChild(document.createTextNode(tdNode.cell));
+                               trNode.appendChild(tdNode);
+                       }
+                       table.appendChild(trNode);
+               }
+               return table;
+       }       
+
       log(cloudeebus);
       cloudeebus.connect('', null, function() {}, function() {})
       log(cloudeebus.SessionBus)
@@ -21,6 +36,21 @@
                                                      "/org/freedesktop/Tracker1/Status",
                                                      trackerReady,
                                                      log);
+      var sparqlReady = function(sparqlproxy) {
+        var query = "SELECT DISTINCT ?c ?r ?d WHERE { ?c a rdfs:Class . ?r rdfs:domain ?c . ?r rdfs:range ?d } ORDER BY ?c ?r";
+        log(query);
+       sparqlproxy.SparqlQuery(query).then(
+                       function(result) {
+                               var out = document.getElementById("output");
+                               out.appendChild(document.createElement("hr"));
+                               out.appendChild(CreateTableView(result));
+                       }, 
+                       log);
+      }
+      var sparql = cloudeebus.SessionBus().getObject("org.freedesktop.Tracker1", 
+                                                     "/org/freedesktop/Tracker1/Resources",
+                                                     sparqlReady,
+                                                     log);
     </script>
   </body>
 </html>