Filter and applet communication

[Sharon whipple]

After long and frustrating retries to build working servlet front controller that will answer any user request , I managed to build filter servlet using tomcat's filter mapping

   <filter-mapping>
      <filter-name>FrontController</filter-name>
      <url-pattern>/*</url-pattern>
   </filter-mapping>

Its working great!
I am able to catch every user request!
My problem is that I am unable to communicate with user applets using streams , Example Filter:

public class MyFilter implements Filter {
public  void doFilter(ServletRequest sRequest, ServletResponse  sResponse, FilterChain chain)
    throws IOException, ServletException {
        try{
        String str=(String)receiveObject((HttpServletRequest)sRequest);
        System.out.println("String from applet : " + str);
        }catch(Exception ex){ex.printStackTrace();}
        ...
}

Anyone used this kind of communication?
Please feel free and post anything that can assist me .(links , examples ,etc)
Thank you all !
Sharon
[ August 11, 2003: Message edited by: sharon pl ]

[Cindy Glass]

Check out chapter 17
http://archive.coreservlets.com/

[Sharon whipple]

hi Cindy
I downloaded the 17 chapter pdf and read it,
I am able to communicate between applet and normal servlet using GET POST and byte streams,
My problem start when I am using j2ee Intercepting Filter pattern can be found here:
http://java.sun.com/blueprints/corej2eepatterns/Patterns/InterceptingFilter.html
I am unable to stream data between the applet and my filter servlet,
This filter extending the Filter class instead of the: HttpStrvlet class
And receiving ServletRequest and ServletResponse as parameters instead of:
HttpServletRequest and HttpServletResponse in normal servlet.

Thank you ,
Sharon.

[Tony Alicea]

Can't wait for 2nd edition:
http://www.amazon.com/exec/obidos/tg/detail/-/0130092290/002-1569969-5672855