AppLogService.debug( "appointmentDesk - Received strJson : " + strJson );

        List<Slot> listSlots;
        try
        {
            listSlots = mapper.readValue( strJson, new TypeReference<List<Slot>>( )
            {
            } );

        }
        catch( JsonProcessingException e )
        {

            AppLogService.error( PROPERTY_MESSAGE_ERROR_PARSING_JSON + e.getMessage( ), e );
            json.element( JSON_KEY_ERROR, I18nService.getLocalizedString( PROPERTY_MESSAGE_ERROR_PARSING_JSON, getLocale( ) ) );

            return json.toString( );
        }

        if ( !RBACService.isAuthorized( AppointmentFormDTO.RESOURCE_TYPE, Integer.toString( listSlots.get( 0 ).getIdForm( ) ),
                AppointmentResourceIdService.PERMISSION_MODIFY_ADVANCED_SETTING_FORM, (User) getUser( ) ) )
        {
            AppLogService.error( AppointmentResourceIdService.PERMISSION_MODIFY_ADVANCED_SETTING_FORM,
                    new AccessDeniedException( AppointmentResourceIdService.PERMISSION_MODIFY_ADVANCED_SETTING_FORM ) );
            json.element( JSON_KEY_ERROR, I18nService.getLocalizedString( PROPERTY_MESSAGE_ERROR_ACCESS_DENIED, getLocale( ) ) );

            return json.toString( );
        }

        AppointmentDeskService.closeAppointmentDesk( listSlots );