/**
* Returns the result of applying XOR on this attribute's address, using the specified transaction
* ID when converting IPv6 addresses.
*
* @param transactionID the transaction ID to use in case this attribute is encapsulating an IPv6
* address.
* @return the XOR-ed address.
*/
public TransportAddress getAddress(byte[] transactionID) {
byte[] xorMask = new byte[16];
System.arraycopy(Message.MAGIC_COOKIE, 0, xorMask, 0, 4);
System.arraycopy(transactionID, 0, xorMask, 4, 12);
return applyXor(xorMask);
}
/**
* Applies a XOR mask to the specified address and then sets it as the value transported by this
* attribute.
*
* @param address the address that we should xor and then record in this attribute.
* @param transactionID the transaction identifier that we should use when creating the XOR mask.
*/
public void setAddress(TransportAddress address, byte[] transactionID) {
byte[] xorMask = new byte[16];
System.arraycopy(Message.MAGIC_COOKIE, 0, xorMask, 0, 4);
System.arraycopy(transactionID, 0, xorMask, 4, 12);
TransportAddress xorAddress = applyXor(address, xorMask);
super.setAddress(xorAddress);
}