Based on the popular and very useful mod_rewrite for apache, UrlRewriteFilter is a Java Web Filter for any J2EE
compliant web application server (such as Resin or Tomcat), which allows you to rewrite URLs before they get to your
code.
Implements a regex like interface on top of WildcardMatcher, this is really just a convinience class
so that it's easier for us to program against regex and wildcard patterns.