code: public String processMultiMetaDataRequest(final MultiMetaDataRequest request) {
      StringBuilder result = new StringBuilder();
      for (String code : request.getQuandlCodes()) {
        if (result.length() > 0) {
          result.append(",");
        }
        result.append(code);
      }
      return result.toString();
    }
docs: Process a multi-metadata request into a descriptive title string.
  @param request  the multi-metadata request
  @return the title string