private void onMessageFromClient(AbstractMessage msg) throws Exception {
Container.logger().debug("<<< " + msg);
switch (msg.getMessageType()) {
case CONNECT:
ConnectMessage connect = (ConnectMessage) msg;
ConnAckMessage connAck = new ConnAckMessage();
if (session == null) {
session = new MQTTSession(vertx, config);
session.setPublishMessageHandler(this::sendMessageToClient);
session.setKeepaliveErrorHandler(
clientID -> {
String cinfo = clientID;
if (session != null) {
cinfo = session.getClientInfo();
}
Container.logger()
.info("keep alive exausted! closing connection for client[" + cinfo + "] ...");
closeConnection();
});
connAck.setSessionPresent(false);
} else {
Container.logger().warn("Session alredy allocated ...");
/*
The Server MUST process a second CONNECT Packet sent from a Client as a protocol violation and disconnect the Client
*/
// connAck.setSessionPresent(true);// TODO implement cleanSession=false
closeConnection();
break;
}
session.handleConnectMessage(
connect,
authenticated -> {
if (authenticated) {
connAck.setReturnCode(ConnAckMessage.CONNECTION_ACCEPTED);
sendMessageToClient(connAck);
} else {
Container.logger()
.error(
"Authentication failed! clientID= "
+ connect.getClientID()
+ " username="******"type of message not known: " + msg.getClass().getSimpleName());
break;
}
// TODO: forward mqtt message to backup server
}
