RE: [rules-users] Parsing XML using Drools

It is not clear how you want to use the XML? If the XML represents Facts then you could use a worker Fact and "FROM" to deserialise them and make them available to WM. For example:- rule "get some XML facts" when $w : Worker() Cheese( ) from $w.getCheesesFromXML(); then //Do something with cheese end Obviously the XML need not be true serialised objects (in a JAXB sense) but simply the properties that "getCheeseFromXML" rehydrates. Drools is not exposing any of the XML libraries; they are merely used by your code. The above would be (partially) equivalent to:- Worker w = new Worker(); List<Cheese> cheeses = w.getCheesesFromXML(); for(Cheese c : cheeses) { wm.insert(c); } rule "Cheese pre-loaded" when Cheese( ) then //Do something with cheese end Partially equivalent as you could retract Cheese( ) in the second way which would affect truth maintenance whereas the first way would (I believe) not. With kind regards, Mike ________________________________ From: rules-users-bounces(a)lists.jboss.org [mailto:rules-users-bounces@lists.jboss.org] On Behalf Of Gupta, Ankit (Ankit) Sent: 29 January 2009 07:22 To: rules-users(a)lists.jboss.org Subject: [rules-users] Parsing XML using Drools Hi All, How can we read and parse a XML file using drools ? Does Drools support the SAX or DOM parsing . Regards Ankit