/** * Deserializer function for IP packets. * * @return deserializer function */ public static Deserializer<? extends IP> deserializer() { return (data, offset, length) -> { final ByteBuffer bb = ByteBuffer.wrap(data, offset, length); byte version = (byte) (bb.get() >> 4 & 0xf); switch (version) { case 4: return IPv4.deserializer().deserialize(data, offset, length); case 6: return IPv6.deserializer().deserialize(data, offset, length); default: throw new DeserializationException("Invalid IP version"); } }; } }