@Override
public void edit(Map<String, Object> parameters, HttpServletResponse response) throws IOException {
List<File> values = new RecursiveItemsList(MUSIC, Extension.mp3.toString()).values();
List<String> fileLines = new FileLinesList().values((String) parameters.get("edit"));
parameters.put("items", new FileMp3Converter().convert(values));
parameters.put("isChecked", new IsChecked(fileLines));
merge("playlist/edit.freemarker", parameters, response.getWriter());
}