/** @return Peaks search engine locally accessible data file. */
  public File getDataFile() {
    PeaksParameter peaksOnlineParameter = parameters.get(SUBMIT_SEARCH_DATAFILE);

    if (peaksOnlineParameter != null) {
      return (File) peaksOnlineParameter.getParameterValue();
    }

    return null;
  }
  public String getTitle() {
    PeaksParameter peaksOnlineParameter = parameters.get(SUBMIT_SEARCH_TITLE);

    if (peaksOnlineParameter != null) {
      return peaksOnlineParameter.getParameterValue().toString();
    }

    return null;
  }
 public void setParameter(PeaksParameter peaksOnlineParameter) {
   parameters.put(peaksOnlineParameter.getParameterName(), peaksOnlineParameter);
 }