code: public void processFile(String fileName, boolean failOnFileNotFound) throws Exception {
  
      boolean fileFound = false;
      InputStream f = null;
      try {
        String furl = null;
  
        File file = new File(fileName); // files in filesystem
        if (!file.exists()) {
          URL url = classLoadHelper.getResource(fileName);
          if (url != null) {
            try {
              furl = URLDecoder.decode(url.getPath(), "UTF-8");
            } catch (UnsupportedEncodingException e) {
              furl = url.getPath();
            }
            file = new File(furl);
            try {
              f = url.openStream();
            } catch (IOException ignor) {
              // Swallow the exception
            }
          }
        } else {
          try {
            f = new java.io.FileInputStream(file);
          } catch (FileNotFoundException e) {
            // ignore
          }
        }
  
        if (f == null) {
          fileFound = false;
        } else {
          fileFound = true;
        }
      } finally {
        try {
          if (f != null) {
            f.close();
          }
        } catch (IOException ioe) {
          logger.warn("Error closing jobs file " + fileName, ioe);
        }
      }
  
      if (!fileFound) {
        if (failOnFileNotFound) {
          throw new SchedulerException("File named '" + fileName + "' does not exist.");
        } else {
          logger.warn(
              "File named '"
                  + fileName
                  + "' does not exist. This is OK if you don't want to use an XML job config file.");
        }
      } else {
        processFile(fileName);
      }
    }
docs: Process the xml file in the given location, and schedule all of the jobs defined within it.
  
  @param fileName meta data file name.