Use GetId everywhere

src/Tree/Controllers/TreeController.cs

@@ -145,7 +145,7 @@ namespace Coscine.Api.Tree.Controllers
                 // Add to metadata infos, if no "physical" file for it exists
                 if (!metadataInfos.Any((metadataInfo) => metadataInfo.Key == path))
                 {
-                    metadataInfos.Add(new ResourceEntry(path, true, 0, _coscineLDPHelper.GenerateId(resourceId, path, true).AbsoluteUri, null, DateTime.Now, DateTime.Now));
+                    metadataInfos.Add(new ResourceEntry(path, true, 0, _coscineLDPHelper.GetId(resourceId, path, true).AbsoluteUri, null, DateTime.Now, DateTime.Now));
                 }
 
                 var applicationProfileGraph = _rdfStoreConnector.GetGraph(resource.ApplicationProfile);
@@ -321,7 +321,7 @@ namespace Coscine.Api.Tree.Controllers
             // Ducktape solution for supporting multiple mimetypes
             var metadataObject = ObjectFactory<JToken>.DeserializeFromStream(Request.Body);
 
-            var graphNameUri = _coscineLDPHelper.GenerateId(resourceId, path, false, true);
+            var graphNameUri = _coscineLDPHelper.GetId(resourceId, path, false, true);
 
             JObject json;