[rules-users] Ws-Policy and drools rules

Hi, i'm Filippo Agazzi, from University of Parma, and i'm working on a thesis work, where i'm evaluating if Drools Expert(rule engine) can fit my needs. I'm trying to use drools engine in web services environment. My problem is that i have to translate in some way, Ws-Policy (xml format), containing for example a request for client to send x509 element, received in SOAP message, into drools rules, so i can use this policy as rules for Drools engine. Drools engine is used to lead a negotation exchange of SOAP message, containing ws-policy and credentials. Is there anyone that has an idea of how can i do this translation at runtime? Or how can i insert into drools engine, my policy element as rules? I can have also a java class Policy to use, if it can help inserting ws-policy as rules into drools. Thanks in advance. Regards, Filippo Agazzi