[JBoss Rules with DSL] Unable to expand

[tom.collet]

Hi there,

I'm a newbie on Jboss and I try to use a basic DSL with a basic rule :

My DSL file called TctMyDSL.dsl :
---------------------------------------

[consequence][]print "{message}"=System.out.println("{message}");

My DRL file :
---------------

package tom
import java.util.Date;

expander TctMyDSL.dsl

rule "TctMyRule2"

 when

 then
 print : "TctMyRule2-->then"
end

To fire my rule, I use a servlet deployed on a jboss-4.0.5.GA server / Vista and using the java 1.5 version :

My Servlet :
--------------

imports ...


/**
 * Servlet implementation class for Servlet: TctMyServlet
 *
 */
 public class TctMyRulesServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
 static final long serialVersionUID = 20101986;
 protected static RuleEngine ruleEngine = RuleEngine.getInstance();
 private static Logger log = Logger.getLogger(TctMyRulesServlet.class);

 /* (non-Java-doc)
 * @see javax.servlet.http.HttpServlet#HttpServlet()
 */
 public TctMyRulesServlet() {
 super();
 }

 /* (non-Java-doc)
 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
 */

 protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

 Space space = Space.newInstance();
 space.write(EventI.SP_NOW, new Date());
 RuleSession mem = ruleEngine.createSession(null, "TctMyRuleBase");
 mem.addFact((Date)space.read(EventI.SP_NOW));

 try{
 mem.processFacts();
 }catch(Exception e){
 log.info("Tom say : "+e.getMessage());
 }
 }

 /* (non-Java-doc)
 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
 */
 protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
 this.doGet(request, response);
 }
}

And so I am getting the following error :

unknown:11:0 Unable to expand: print "TctMyRule2-->then". Due to Expression was not expandable: print "TctMyRule2-->then"

For the moment I don't use my fact to fire my rule (when block is empty) as i'm debugging but in the future I would have something like this :



My future DRL file :
----------------------

package tom
import java.util.Date;

expander TctMyDSL.dsl

rule "TctMyRule2"

 when
 now : Date()
 then
 print : "message"
end

Without DSL file my rules work fine.
Also I have made a lot of research but I get only solutions for punctuation problems like added spaces, missing expander ...

Thank you for your help and please accept my apologies for the bad English :-)

Tom.

[tom.collet]

Still having the same problem :

First rule :
-----------

package tom
import java.util.Date;

expander TctMyDSL.dsl

rule "TctMyRule"

 when
 now : Date()
 then
 Afficher "TctMyRulethen"
end

-> It works

Second rule :
-----------

package tom

expander TctMyDSL.dsl

rule "TctMyRuledeux"

 when
 s : String()

 then
 Afficher "TctMyRulethendeux"
end

-> unable to expand Afficher "TctMyRulethendeux"


Any help, please ?