long-polling

I have written my server side code for long polling. I want to write the client program in java. So as per long polling, the client sends a request which is help by the server and the server responds to the request when an event occurs and then client sends a new request. So the trouble I am facing is with the client side which is to be written in java. After I send the request, how to keep checking in the client side if the server has responded to it or not. At what intervals should I keep sending the request to the server. I am totally confused. I am quite a beginner to Web technologies. I

I was looking for a simple framework for implementing Comet for my GWT application. I looked on gwt-rocket which seems to be non active, then on gwt-comet which is not active, then on atmosphere-gwt-comet which was moved into the atmosphere project, and finally - tried to actually download the gwt sample from atmosphere and work with it. :| I added the atmosphere-gwt-server and atmosphere-gwt-client modules (version 0.8.6) to my project and tried to make the existing atmosphere sample to work. I'm getting connection terminated exceptions all the time, and no messages. It seems that example

Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 3 years ago . I would like to receive Server-Sent Events in my native iOS app however am not using webkit/Safari. From what I've found, NSURLConnection is poor fit as it chunks response . I've also looked at ZTWebSocket library (obviously nice, but I'm seeking SSE, not web sockets). Would CocoaAsyncSocket be appropriate? Or limited to pure TCP Socket communication? I have a sneaking suspicion that I am missing

I'm using http.Client for the client-side implementation of a long-poll: resp, err := client.Post(url, "application/json", bytes.NewBuffer(jsonPostBytes)) if err != nil { panic(err) } defer resp.Body.Close() var results []*ResponseMessage err = json.NewDecoder(resp.Body).Decode(&results) // code blocks here on long-poll Is there a standard way to pre-empt/cancel the request from the client-side? I imagine that calling resp.Body.Close() would do it, but I'd have to call that from another goroutine, as the client is normally already blocked in reading the response of the long-poll. I know that

I am trying to implement long polling in my Spring-MVC Web App but it freezes my browser and other request after 4-5 continues AJAX requests.I have no clue whats goin on here is my relevant code. The controller method:(Server Side):- @Asynchronous @RequestMapping("/notify") public @ResponseBody Events notifyEvent(HttpServletRequest request) { Events events = null; try { events = (Events) request.getSession(false).getServletContext().getAttribute("events"); System.out.println("Request Came from" + ((com.hcdc.coedp.safe.domain.User) request.getSession(false).getAttribute(Constants.KEY_LOGGED_IN

I'd like to use WebSocket with Java . Problem is, my server is separated from the client by a proxy that cannot be configured. I've been searching for implementations of WebSocket with fallbacks such as long-polling . I've found socket.io but don't know how the fallback works. Under which case does it replace WebSocket and how? Are there other libraries like socket.io with fallbacks implementations? I would like to find one in Java , but I only found Jetty . EDIT: does the fallback only depend on the browser's compatibility with WebSocket? What if the cause of failure is a proxy badly