code: public void import_admin_device(final DeviceProxy deviceProxy, final DbDevImportInfo info)
              throws DevFailed {
          checkIfTango(deviceProxy, "import_admin_device()");
          /*
           * if (deviceProxy.device==null && deviceProxy.devname!=null)
           * build_connection(deviceProxy);
           */
          // Get connection on administration device
          if (deviceProxy.getAdm_dev() == null) {
              if (DeviceProxyFactory.exists(info.name)) {
                  deviceProxy.setAdm_dev(DeviceProxyFactory.get(info.name));
              } else {
              // If not exists, create it with info
                  deviceProxy.setAdm_dev(new DeviceProxy(info));
              }
          }
      }
docs: ===================================================================