private static Process rProcess = null;
  
  public void init(ServletConfig config) throws ServletException
  {
    super.init(config);
    WeaveContextParams wcp = WeaveContextParams.getInstance(config.getServletContext());
    WeaveConfig.initWeaveConfig(wcp);
    docrootPath = wcp.getDocrootPath();
    uploadPath = wcp.getUploadPath();
    rServePath = wcp.getRServePath();
    startRServe();
  }