Is it possible to use UrlRewriter outside servlet and filter in Java?

I have set up UrlRewriterFilter (Tuckey) with many rules and it is working very good for my servlet. But I want to use the same config to rewrite urls outside servlet - in code that generates e-mails with urls.

So, I need to somehow start UrlRewriter (or some kind of wrapper) to process outgoing url i.e. re开发者_StackOverflow社区write them with my outbound-rules already defined in config (urlrewrite.xml).

I would like to use it just like this:

String prettyUrl = urlRewriter.rewriteOutgoingUrl(uglyUrl);

Is this possible at all? How to achieve this goal?

It's open source. You could review it's source code (http://code.google.com/p/urlrewritefilter/source/browse/trunk/src/java/org/tuckey/web/filters/urlrewrite/UrlRewriteFilter.java) and see if the logic is available in standalone class(es) which don't rely on servlet request/response objects. If it is, just use it. Otherwise you can build it yourself based on the original source, reusing as much of the library as possible.

You probably just need to initialize UrlRewriteFilter. Since you have to add this in your web.xml file normally the UrlRewriteFilter config files probably get loaded once. I would try loading this in a static initializer in some wrapper class you define. To define a static initializer all you need to do is within a class have the following:

static {
   //Your initialization code goes here
}

This code will only be initialized once, during runtime. For more information please look here: http://java.sun.com/docs/books/tutorial/java/javaOO/initial.html