[rules-users] Cannot find the declaration of element 'rule-set'.

[Mark Proctor]

You are using Drools 2.x XML with JBoss Rules 3.0 - the two are very 
different, please see the wiki for more details.

Mark
shilpa.raghavendra at wipro.com wrote:
>
>  
>
> Main Class as follows
>
>  
>
> package com.sample;
>
>  
>
> import java.io.InputStreamReader;
>
> import java.io.Reader;
>
>  
>
> import org.drools.RuleBase;
>
> import org.drools.RuleBaseFactory;
>
> import org.drools.WorkingMemory;
>
> import org.drools.compiler.PackageBuilder;
>
> import org.drools.rule.Package;
>
>  
>
> /**
>
>  * This is a sample file to launch a rule package from a rule source file.
>
>  */
>
> public class DroolsTest1 {
>
>  
>
>     public static final void main(String[] args) {
>
>         try {
>
>            
>
>             //load up the rulebase
>
>             RuleBase ruleBase = readRule();
>
>             WorkingMemory workingMemory = ruleBase.newWorkingMemory();
>
>            
>
>             //go !
>
>             Message message = new Message();
>
>             message.setOp1(2);
>
>             message.setOp2(2);
>
>             workingMemory.assertObject( message );
>
>             workingMemory.fireAllRules();  
>
>            
>
>            
>
>         } catch (Throwable t) {
>
>             t.printStackTrace();
>
>         }
>
>     }
>
>  
>
>     /**
>
>      * Please note that this is the "low level" rule assembly API.
>
>      */
>
>       private static RuleBase readRule() throws Exception {
>
>             //read in the source
>
>             Reader source = new InputStreamReader( 
> DroolsTest1.class.getResourceAsStream( "/Sample1.drl" ) );
>
>            
>
>             //optionally read in the DSL (if you are using it).
>
>             //Reader dsl = new InputStreamReader( 
> DroolsTest.class.getResourceAsStream( "/mylang.dsl" ) );
>
>  
>
>             //Use package builder to build up a rule package.
>
>             //An alternative lower level class called "DrlParser" can 
> also be used...
>
>            
>
>             PackageBuilder builder = new PackageBuilder();
>
>  
>
>             //this wil parse and compile in one step
>
>             //NOTE: There are 2 methods here, the one argument one is 
> for normal DRL.
>
>             //builder.addPackageFromDrl( source );
>
>             builder.addPackageFromXml( source );
>
>  
>
>             //Use the following instead of above if you are using a DSL:
>
>             //builder.addPackageFromDrl( source, dsl );
>
>            
>
>             //get the compiled package (which is serializable)
>
>             Package pkg = builder.getPackage();
>
>            
>
>             //add the package to a rulebase (deploy the rule package).
>
>             RuleBase ruleBase = RuleBaseFactory.newRuleBase();
>
>             ruleBase.addPackage( pkg );
>
>             return ruleBase;
>
>       }
>
>      
>
>       public static class Message {
>
>             int op1 ;
>
>             int op2;
>
>             /**
>
>              * @return the op1
>
>              */
>
>             public int getOp1() {
>
>                   return op1;
>
>             }
>
>             /**
>
>              * @param op1 the op1 to set
>
>              */
>
>             public void setOp1(int op1) {
>
>                   this.op1 = op1;
>
>             }
>
>             /**
>
>              * @return the op2
>
>              */
>
>             public int getOp2() {
>
>                   return op2;
>
>             }
>
>             /**
>
>              * @param op2 the op2 to set
>
>              */
>
>             public void setOp2(int op2) {
>
>                   this.op2 = op2;
>
>             }
>
>            
>
>       }
>
>    
>
> }
>
>  
>
> It's in src/ java /com/ com.sample package
>
>  
>
> The sample1.drl file in src/ rules/Sample.drl is as follows
>
>  
>
> <?xml version="1.0"?>
>
> <rule-set name="BusinessRulesSample"
>
>           xmlns="http://drools.org/rules"
>
>           xmlns:java="http://drools.org/semantics/java"
>
>           xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
>
>           xs:schemaLocation="http://drools.org/rules rules.xsd
>
>                              http://drools.org/semantics/java java.xsd">
>
>  
>
>   <!-- Code for Drools Article (c)www.firstpartners.net 2005 -->
>
>  
>
>   <!-- Import the Java Objects that we refer to in our rules --> 
>
>   <java:import>java.lang.Object</java:import>
>
>   <java:import>java.lang.String</java:import>
>
>   <java:import>com.sample.DroolsTest1.*</java:import>
>
>  
>
>      
>
>   <java:functions>
>
>       public void printValues(int i, int j)
>
>       {
>
>             System.out.println("hi"+i+j);
>
>       }
>
>   </java:functions>
>
>  
>
>  
>
>   <!-- Check for XYZ Corp--> 
>
>   <rule name="XYZCorp" >
>
>  
>
>       <!-- Parameters we can pass into the business rule -->
>
>     <parameter identifier="message">
>
>       <class>com.sample.DroolsTest1.Message</class>
>
>     </parameter>
>
>  
>
>       <!-- Conditions or 'Left Hand Side' (LHS) that must be met for 
> business rule to fire -->
>
>      
>
>      
>
>       <java:condition>message.getOp1()==2</java:condition> 
>
>       !-- What happens when the business rule is activated -->
>
>     <java:consequence>
>
>         printValues(message.getOp1(),message.getOp2());
>
>     </java:consequence>
>
>   </rule>
>
>  
>
> </rule-set>
>
>  
>
>  
>
> When I run the program I will get the following error. If I change 
>  addPackageFromXml to addPackageFromDrl the error is same . So please 
> help me in this
>
>  
>
>  
>
> (null: 7, 74): cvc-elt.1: Cannot find the declaration of element 
> 'rule-set'.
>
> _org.drools.compiler.DroolsParserException_
>
>       at org.drools.compiler.PackageBuilder.addPackageFromXml(Unknown 
> Source)
>
>       at com.sample.DroolsTest1.readRule(_DroolsTest1.java:55_)
>
>       at com.sample.DroolsTest1.main(_DroolsTest1.java:21_)
>
>  
>
>  
>
> Thanks & Regards
>
> Shilpa
>
>
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