private static boolean validateIpAddress(String string) {
        List<String> parts = Splitter.on('.').splitToList(string);
        if (parts.size() != 4) {
            return false;
        }
        for (String part : parts) {
            try {
                int num = Integer.parseInt(part);
                if (num < 0 || num > 255) {
                    return false;
                }
            } catch (NumberFormatException nfe) {
                return false;
            }
        }
        return true;
    }
Parse ISO 8601 timestamp into seconds since 1970.
src/main/java/org/gaul/s3proxy/S3ProxyHandler.java