dss: simplify code in IoServiceObjects

src/dss.cpp

@@ -226,6 +226,7 @@ struct DSS::Impl {
   /// Objects synchronized to ioService event loop
   struct IoServiceObjects {
     DSS& dss;
+    Apartment& apartment{dss.getApartment()};
     boost::asio::ssl::context sslContext{boost::asio::ssl::context::sslv23_client};
     boost::asio::io_service& io{dss.getIoService()};
     std::unique_ptr<ds::System> dsSystem{ds::makeSystem()};
@@ -233,18 +234,17 @@ struct DSS::Impl {
     std::unique_ptr<SimpleHttpClient> httpClient{makeSimpleHttpClient()};
     ds::asio::FileDescriptorsWatchdog fileDescriptorsWatchdog{io, std::chrono::seconds(20)};
     VdcToken vdcToken{dss};
-    std::unique_ptr<BackendVdcs> backendVdcs{
-        makeBackendVdcs(dss.getApartment(), dss.getEventInterpreter(), *conf, *httpClient)};
+    std::unique_ptr<BackendVdcs> backendVdcs{makeBackendVdcs(apartment, dss.getEventInterpreter(), *conf, *httpClient)};
     std::unique_ptr<dsConnector::StreamClient> streamClient{dsConnector::makeWSSClient(
         io, sslContext,
         conf->readOr<std::string>("backendConnectorUrl", "wss://dsbcdev.devapi.digitalstrom.com:8256/dss"))};
     std::unique_ptr<dsApi::Service> testService = dsApi::makeTestService();
     dsApi::Service api;
 
-    ApartmentBusHook apartmentBusHook{*conf, dss.getPropertySystem(), dss.getApartment(), api};
+    ApartmentBusHook apartmentBusHook{*conf, dss.getPropertySystem(), apartment, api};
     std::unique_ptr<dsConnector::Bus> connectorBus{makeConnectorBus(io, *conf, *streamClient, apartmentBusHook)};
     std::unique_ptr<dsModel::ApartmentApi> apartmentApi{
-        makeApartmentApi(*conf, *connectorBus, dss.getApartment(), dss.getEventInterpreter(), io)};
+        makeApartmentApi(*conf, *connectorBus, apartment, dss.getEventInterpreter(), io)};
     std::unique_ptr<dsApi::Service> apartmentApiService = dsModel::makeService(*apartmentApi);
 
     IoServiceObjects(DSS& dss) : dss(dss) {