Return datasource names along with datasource annotation (#4973)

* Add new `datasource_names` annotation that returns the string version of the `datasources` annotation
2018-04-03 15:13:25 -07:00
parent 8a63ad9b4b
commit b5a4ffed96
7 changed files with 81 additions and 5 deletions
@@ -324,6 +324,23 @@ class RouteAPI : public BaseAPI
                    }
                    annotation.values["nodes"] = std::move(nodes);
                }
+                // Add any supporting metadata, if needed
+                if (requested_annotations & RouteParameters::AnnotationsType::Datasources)
+                {
+                    const auto MAX_DATASOURCE_ID = 255u;
+                    util::json::Object metadata;
+                    util::json::Array datasource_names;
+                    for (auto i = 0u; i < MAX_DATASOURCE_ID; i++)
+                    {
+                        const auto name = facade.GetDatasourceName(i);
+                        // Length of 0 indicates the first empty name, so we can stop here
+                        if (name.size() == 0)
+                            break;
+                        datasource_names.values.push_back(std::string(facade.GetDatasourceName(i)));
+                    }
+                    metadata.values["datasource_names"] = datasource_names;
+                    annotation.values["metadata"] = metadata;
+                }

                annotations.push_back(std::move(annotation));
            }