if (core_transport instanceof TCPTransportImpl) {
TransportHelperFilter hfilter = ((TCPTransportImpl)core_transport).getFilter();
if (hfilter != null) {helper = hfilter.getHelper();}
else {
helper = new TCPTransportHelper(((TCPTransportImpl)(core_transport)).getSocketChannel());
}
} else if (core_transport instanceof UDPTransport) {
TransportHelperFilter hfilter = ((UDPTransport)core_transport).getFilter();
if (hfilter != null) {helper = hfilter.getHelper();}
else {