Hi All, I think I wrote something which may be of use to ServiceMix, but unfortunately I don't have time to integrate it myself - so I'm going to throw it out there for everyone :-)
I started a project called SXC - simple xml compiler - which creates optimized xml parsers for various things. There is one for JAXB. But, the one of probably the most interest to this crew is the XPath frontend. SXC can build a streaming xpath parser for you (at runtime). This means you can listen for XPath events as you scan over the document. This allows for very efficient XPath based routing. In my initial performance test it was about 100x faster than Jaxen for locating nodes (although thats a very rough benchmark, real numbers may vary!) We also integrated it with Drools so you can write XPath expressions right in your rules. Check out these links for more information: http://sxc.codehaus.org http://sxc.codehaus.org/XPath http://sxc.codehaus.org/Drools The one caveat is that we support only a limited subset of XPath expressions at the moment. But if you wanted to hack SXC, its easy enough to add more. I'm happy to help where I can or give guidance to anyone who wants to participate as well. Anyone up for hacking it into servicemix? :-) - Dan -- Dan Diephouse Envoi Solutions http://envoisolutions.com | http://netzooid.com/blog
