Filter mapping for static files

[Maneesh Godbole]

I have a Tomcat hosted app. I wish to log the IPs of the clients.
I have a static index.html file which I have defined in my web.xml <welcome-file-list>

Now I wrote a simple tracker filter with the following doFilter

	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws IOException,
			ServletException {
		LOGGER.info("Connected from >>"+req.getRemoteAddr()+":"+req.getRemoteHost());
		chain.doFilter(req, resp);
	}

and modified my web.xml to

  <filter>
  	<filter-name>IPFilter</filter-name>
  	<filter-class>my.package.name.MyIPTracker</filter-class>
  </filter>
  
  <filter-mapping>
  	<filter-name>IPFilter</filter-name>
  	<url-pattern>/*</url-pattern>
  </filter-mapping>

I tried changing the url-pattern to /html /.html and /*html. I do not see the logged information.
What am I doing wrong?

[Maneesh Godbole]

Update: Though I am using Tomcat for dev, it is a Google App Engine project. GAE caches and serves static resources to enhance efficiency. I modified the appengine-web.xml to exclude the html file and I can see the IP in the log.
So essentially the url-pattern /* or even/Test.html is correct.