/**
* When we receive a Confirmable response, we acknowledge it and it also counts as acknowledgment
* for the request. If the response is a duplicate, we stop it here and do not forward it to the
* upper layer.
*/
@Override
public void receiveResponse(Exchange exchange, Response response) {
exchange.setFailedTransmissionCount(0);
exchange.getCurrentRequest().setAcknowledged(true);
LOGGER.finest("Cancel any retransmission");
exchange.setRetransmissionHandle(null);
if (response.getType() == Type.CON && !exchange.getRequest().isCanceled()) {
LOGGER.finer("Response is confirmable, send ACK");
EmptyMessage ack = EmptyMessage.newACK(response);
sendEmptyMessage(exchange, ack);
}
if (response.isDuplicate()) {
LOGGER.fine("Response is duplicate, ignore it");
} else {
super.receiveResponse(exchange, response);
}
}
