private void updateLibrary() {
   libraryDeletionService.updateLibrary();
   libraryAdditionService.updateLibrary();
 }
 public void delete(Set<String> paths) throws ApplicationException {
   libraryDeletionService.delete(paths);
 }
 private void clearImport() {
   libraryAdditionService.clearImport();
   libraryDeletionService.clearImport();
 }