private File getFileWhileCleaningInProgress(String... path) {
        File file = getFile(path);
        File markerFile = getInProgressMarkerFile(file);
        if (markerFile.exists()) {
            deleteFileQuietly(file);
            deleteFileQuietly(markerFile);
        }
        return file;
    }

    @Override
    public LocallyAvailableResource add(final String path, final Action<File> addAction) {
        try {