class CareSubsystem extends BaseSubsystem<CareSubsystemModel> {

   @Request(AcknowledgeRequest.NAME) 
   public MessageBody onAcknowledge( PlatformMessage message, SubsystemContext<CareSubsystemModel> context) {
      String source = message.getSource().getRepresentation();
      acknowledgeCareAlert(context,source);
      return AcknowledgeResponse.instance();
   }

}