String authServerDeviceName = null;
// read the auth server attribute from DataRecorder device
DeviceProxy proxy = TangoDeviceHelper.getDeviceProxy(deviceName);
if (proxy != null) {
try {
DeviceAttribute deviceAttribute = proxy.read_attribute(AUTH_SERVER_DEVICE_ATTR);
authServerDeviceName = deviceAttribute.extractString();
} catch (DevFailed exception) {
AuthServerMessageManager.notifyReadAttributeErrorDetected(deviceName, AUTH_SERVER_DEVICE_ATTR,exception);
}
}