if(clientData.getTransport().equals("websocket")) {
String sessionId = clientData.getId();
// sessionId에 해당하는 Transport가 이미 있다면... Invalid
if(sessionId != null && manager.transport(sessionId) != null) {
log.debug("[Manager] Invalid websocket request. " + clientData.getPath());
ServerWebSocket socket = clientData.getSocket();
if(socket != null) {
socket.close();
}
if(request != null) {
request.response().setStatusCode(200);
request.response().end();
request.response().close();