https://github.com/paulk-asert/groovy-rules
http://www.pleus.net/articles/grules/grules.pdf
<a href="http://www.slideshare.net/paulk_asert/groovy-rules">http://www.slideshare.net/paulk_asert/groovy-rules</a>
<a href="http://groovy-sandbox.kohsuke.org/">http://groovy-sandbox.kohsuke.org/</a>
<a href="http://www.cnblogs.com/jevo/archive/2013/04/08/2992445.html">http://www.cnblogs.com/jevo/archive/2013/04/08/2992445.html</a>
<a href="http://blog.573114.com/Ed2k/Html/Topic/87/86887.html">http://blog.573114.com/Ed2k/Html/Topic/87/86887.html</a>