docs: @Override
    public void run() {
      MultipleObjectsBundle data = generator.loadData();
      if(LOG.isVerbose()) {
        LOG.verbose("Writing output ...");
      }
      try {
        if(outputFile.exists() && LOG.isVerbose()) {
          LOG.verbose("The file " + outputFile + " already exists, " + "the generator result will be APPENDED.");
        }
  
        try (OutputStreamWriter outStream = new FileWriter(outputFile, true)) {
          writeClusters(outStream, data);
        }
      }
      catch(IOException e) {
        throw new AbortException("IO Error in data generator.", e);
      }
      if(LOG.isVerbose()) {
        LOG.verbose("Done.");
      }
    }