@Override
protected boolean acceptWebSocket(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
if (!super.acceptWebSocket(req, resp)) {
return false;
} else {
resp.setHeader("upgrade", "websocket");
resp.setHeader("connection", "upgrade");
}
String key = req.getHeader("Sec-WebSocket-Key");
resp.setHeader("Sec-WebSocket-Accept", getWebSocketAccept(key));
WebApplication application = getApplication();
// Small hack until the Servlet API provides a way to do this.
TomcatWebSocketProcessor webSocketHandler = new TomcatWebSocketProcessor(req, application);
TomcatWebSocketProcessor.TomcatWebSocket tomcatWebSocket =
webSocketHandler.new TomcatWebSocket();
// the request can be a wrapper from application servlet filters
while (req instanceof HttpServletRequestWrapper) {
req = (HttpServletRequest) ((HttpServletRequestWrapper) req).getRequest();
}
((RequestFacade) req).doUpgrade(tomcatWebSocket);
return true;
}