class PropertiesLoader {

    public static String unwrapEncryptedValue(String encValue) {
        if (encValue == null) {
            return null;
        }

        String encryptedFormPrefix = "ENC(";
        if (encValue.startsWith(encryptedFormPrefix)) {
            return encValue.substring(encryptedFormPrefix.length(),
                                        encValue.length() - 1);
        } else {
            return null;
        }
    }

    public  PropertiesLoader(CryptoService cryptoService);
    public  PropertiesLoader();

}