RuleSetLoader ruleSetLoader = new RuleSetLoader();
ruleSetLoader.addFromUrl( PetStore.class.getResource( args[0] ) );
RuleBaseLoader ruleBaseLoader = new RuleBaseLoader();
ruleBaseLoader.addFromRuleSetLoader(ruleSetLoader);
RuleBase ruleBase = ruleBaseLoader.buildRuleBase();
Vector stock = new Vector( );
stock.add( new CartItem( "Gold Fish", 5 ) );
stock.add( new CartItem( "Fish Tank", 25 ) );