return delegate.move(normalizePath(key), source);
    }

    protected String normalizePath(String path) {
        return path.replaceAll("[^\\d\\w\\./]", "_");
    }

    protected String normalizeSearchPath(String path) {
        return path.replaceAll("[^\\d\\w\\.\\*/]", "_");
    }

    @Override
    public LocallyAvailableResource add(String key, Action<File> addAction) {