[rules-users] Cant seem to fire a dynamically added rule

[samirsss]

Hi,

Here's the source code of the rule I am trying to add:

 public void testDynamicRules()
  {
	  //Create a rule dynamically and check if it fired from log statements
	  RuleBase ruleBase = wm.getRuleBase();
	  Package[] pkg = ruleBase.getPackages();
	  if(pkg[0] != null)
	  {
		  logger.warn("Package size before adding the rule :
"+pkg[0].getRules().length);
		  //Building a new package
		  final PackageDescr packageDescr = new PackageDescr(pkg[0].getName() );
		  
		  //Building ruleDescriptor
		  RuleDescr ruleDescr = null;
		  String consequence = "mediator.addedNewRule();\n";
		  //String consequence = "logger.warn(\"New rule just got fired\");";
	      ruleDescr = new RuleDescr( "Added new Rule");
	      AndDescr lhs = new AndDescr();
	      ruleDescr.setLhs( lhs );
	      
	      final PatternDescr pattern = new PatternDescr(
ApplicationEvent.class.getName(),
	              "newAppEvent");
	      lhs.addDescr( pattern );


	      final LiteralRestrictionDescr restrictionMessage = new
LiteralRestrictionDescr("==", "Test2", LiteralRestrictionDescr.TYPE_STRING);
	      final FieldConstraintDescr returnValue = new FieldConstraintDescr(
"messageId" );
	      returnValue.addRestriction(restrictionMessage);
	
	      pattern.addConstraint(returnValue);
	        
	      ruleDescr.setConsequence( consequence );
	      List attributes = new ArrayList<AttributeDescr>();
	      attributes.add(new AttributeDescr("salience", "98"));
	      attributes.add(new AttributeDescr("enabled", "true"));
	      ruleDescr.addAttribute( new AttributeDescr("dialect", "java") );
	      ruleDescr.setAttributes(attributes);

	      Package defaultPackage = pkg[0];
	      PackageBuilderConfiguration conf = new PackageBuilderConfiguration();
	      PackageBuilder builder = new PackageBuilder( defaultPackage, conf );
	     
	        //Adding rule to the package
	       packageDescr.addRule( ruleDescr );
	       builder.addPackage(packageDescr);
	       int errors = builder.getErrors().getErrors().length;
	       if(errors > 0)
	       {
	    	   //TODO remove the recently added rule or reload all the rules from
the DRL file
	    	   logger.warn("Error while adding a rule");
	    	   
	       }
	       else
	       {
	    	   Rule newRule = builder.getPackage().getRule(ruleDescr.getName());
	    	   //String ruleFlowName = newRule.getRuleFlowGroup()
	    	   //newRule.get
			  //Check is the rule got added
			  logger.warn("Package size after adding the rule :
"+pkg[0].getRules().length);
	       }
	  }
	  else
	  {
		  logger.warn("Error getting default package for adding rules");
	  }
	  
  }


 public void addedNewRule()
  {
	  //Just testing addition of new rules.
	  logger.warn("New rule just got fired");
  }

I cant seem to get the consequence to get fired. I have a similar rule in my
drl file where the messageID == "Test" and it works fine.

Any help is really helpful here cause I am stuck at this point and might
have to go to creating xml files for the rules and parsing that.

Thanks
Samir
  
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