Hi,
I have a web application running on a servlet container(2.3).
All the servlets inherit from one single servlet that inherit from HttpServlet and implements a service() method.
The service() method of the main page provides authentication mechanism and also a protection against 2x clicks and refresh from user's browser.
In order to avoid flooding the server with the execution of the same part of code, each call coming from the same client and calling the same servlet is entering a FIFO system that puts the servlets asleep until the previous one (for the same session finished execution. This works pretty well except that I would like to avoid execution of the servlet that wakes up if the client has closed the connection of the browser (pressed F5, stop or closed the browser) meanwhile.
How should I detect using the HttpResponse and HttpRequest if the socket is still open or not ?
You may need to know that the application first run several database queries before sending the response to the browser. The flush is only done at the end because the response in XML.
Thanks for any ideas,
Tom