if (dfsCredentials instanceof FilesystemDFSCredentials) {
            FilesystemDFSCredentials filesystemDFSCredentials = (FilesystemDFSCredentials) dfsCredentials;
            return new SimpleDatasafeServiceImpl(
                filesystemDFSCredentials.toBuilder().root(
                    filesystemDFSCredentials.getRoot() + "/" + subdirBelowRoot