@Override
protected byte[] getBytes() {
final List<Byte> byteList =
new ArrayList<>(Bytes.asList(COPSMsgParser.shortToBytes(protocol.getValue())));
byteList.add(tosOverwrite);
byteList.add(tosMask);
byteList.addAll(Bytes.asList(srcAddress.getAddress()));
byteList.addAll(Bytes.asList(dstAddress.getAddress()));
byteList.addAll(Bytes.asList(COPSMsgParser.shortToBytes(srcPort)));
byteList.addAll(Bytes.asList(COPSMsgParser.shortToBytes(dstPort)));
byteList.add(priority);
// reserved padding
byteList.addAll(Bytes.asList((byte) 0, (byte) 0, (byte) 0));
return Bytes.toArray(byteList);
}
/**
* Returns a Classifier object from a byte array
*
* @param data - the data to parse
* @return - the object or null if cannot be parsed TODO - make me more robust as exceptions can
* be swallowed here.
*/
public static Classifier parse(final byte[] data) {
final List<Byte> bytes = Bytes.asList(data);
try {
final byte[] srcAddrBytes = Bytes.toArray(bytes.subList(4, 8));
final byte[] dstAddrBytes = Bytes.toArray(bytes.subList(8, 12));
return new Classifier(
Protocol.valueOf(COPSMsgParser.bytesToShort(data[0], data[1])),
data[2],
data[3],
(Inet4Address) InetAddress.getByAddress(srcAddrBytes),
(Inet4Address) InetAddress.getByAddress(dstAddrBytes),
COPSMsgParser.bytesToShort(data[12], data[13]),
COPSMsgParser.bytesToShort(data[14], data[15]),
data[16]);
} catch (UnknownHostException e) {
return null;
}
}
