public ProtocolInitiation(MarkableDataInput in) throws IOException {
_protocolHeader = new byte[4];
in.read(_protocolHeader);
_protocolClass = in.readByte();
_protocolInstance = in.readByte();
_protocolMajor = in.readByte();
_protocolMinor = in.readByte();
}
/**
* @param in input buffer
* @return true if we have enough data to decode the PI frame fully, false if more data is
* required
* @throws IOException if there is an issue reading the input
*/
public boolean decodable(MarkableDataInput in) throws IOException {
return (in.available() >= 8);
}