code: @Override
      public void handleServerEvent(ISFSEvent event) throws SFSException {
          User user = (User) event.getParameter(SFSEventParam.USER);
          boolean online = (Boolean)event.getParameter(SFSBuddyEventParam.BUDDY_IS_ONLINE);
          updateBuddyProperties((ApiBaseUser) user.getProperty(APIKey.USER), online);
          super.handleServerEvent(event);
      }
docs: /* (non-Javadoc)
  @see com.tvd12.ezyfox.sfs2x.serverhandler.UserZoneEventHandler#handleServerEvent(com.smartfoxserver.v2.core.ISFSEvent)