private void handleIncomingConfirmableCoapMessage(ChannelHandlerContext ctx, MessageEvent me) {
InetSocketAddress remoteEndpoint = (InetSocketAddress) me.getRemoteAddress();
CoapMessage coapMessage = (CoapMessage) me.getMessage();
// Empty CON messages can be used as application layer PING (is CoAP endpoints alive?)
if (coapMessage.getMessageCodeName() == MessageCode.Name.EMPTY)
writeReset(remoteEndpoint, coapMessage.getMessageID());
else if (MessageCode.isResponse(coapMessage.getMessageCode()))
handleIncomingConfirmableCoapResponse(ctx, me);
else if (MessageCode.isRequest(coapMessage.getMessageCode()))
handleIncomingConfirmableCoapRequest(ctx, me);
else
log.error("Incoming CoAP message is neither empty nor request nor response: ", coapMessage);
}
private String msg(MessageCode code, String msg) {
return code.getCode() + ":" + msg;
}