[rules-users] HELP - Problem creating package -validateUniqueRuleNames(PackageBuilder.java:830)

[Saleem Lakhani]

All my rules worked fine with Drools 3. NowI am trying to upgrade to
Drools 5.

I am using the following jar files to create binary (jar) files for my
rules from command line:

antlr-runtime.jar, drools-api.jar, drools-compiler.jar, drools-core.jar,
drools-decisiontables.jar, drools-jsr94.jar, drools-templates.jar,
janino-2.5.15.jar, joda-time.jar, jsr94.jar, jxl.jar, mvel2.jar,
xpp3.jar, xpp3_min.jar, xstream.jar,
org.eclipse.jdt.core_3.6.1.v_A68_R36x.jar


This is my DSLR:

package cit.coverage;
expander Coverage.dsl

rule "rrr"
	auto-focus true
	when
		He is nice
	then
		He is happy
end

This is my DSL Coverage.dsl:

[condition][]He is nice=eval(true)
[consequence][]He is happy=eval(System.out.println("HA HA"))


I am trying to create binary(jars) using the following code:

KnowledgeBuilderConfiguration kbc =
KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
kbc.setProperty("drools.dialect.java.compiler", "JANINO");
KnowledgeBuilder builder = null;
builder = KnowledgeBuilderFactory.newKnowledgeBuilder(kbc);

Reader drlSource = new
InputStreamReader(RVEngine.class.getResourceAsStream(ruleset.getDrlSourc
e()));  
//ruleset.getDrlSource() = com/cit/myDrl.dslr
Reader dslSource = new
InputStreamReader(RVEngine.class.getResourceAsStream(ruleset.getDslSourc
e()));

builder.add(ResourceFactory.newReaderResource(dslSource),
ResourceType.DSL);
builder.add(ResourceFactory.newReaderResource(drlSource),
ResourceType.DSLR);     <-- problem
 
 KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
 kbase.addKnowledgePackages(builder.getKnowledgePackages());


no matter what I type in my dslr (drl) file I get the following
exception on the highlighted line; 
I have 1 rule or 0 rule it still throws the same exception. Does it have
to do with any jar files?

Caused by: java.lang.NullPointerException
     at
org.drools.compiler.PackageBuilder.validateUniqueRuleNames(PackageBuilde
r.java:830)
     at
org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:555)
     at
org.drools.compiler.PackageBuilder.addPackageFromDslr(PackageBuilder.jav
a:355)
     at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.j
ava:461)
     at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.ja
va:28)


saleem

-----Original Message-----
From: rules-users-bounces at lists.jboss.org
[mailto:rules-users-bounces at lists.jboss.org] On Behalf Of Wolfgang Laun
Sent: Friday, March 04, 2011 2:14 AM
To: Rules Users List
Subject: Re: [rules-users] Problem creating package
-validateUniqueRuleNames(PackageBuilder.java:830)

It could be an error in the DSL file. Check for errors after *each*
builder.add(...).
-W


2011/3/4 Saleem Lakhani <Saleem.Lakhani at citizensfla.com>:
> Following is my code:
>
>
>
> KnowledgeBuilderConfiguration kbc =
> KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration();
>
> kbc.setProperty("drools.dialect.java.compiler", "JANINO");
>
> KnowledgeBuilder builder = null;
>
> builder = KnowledgeBuilderFactory.newKnowledgeBuilder(kbc);
>
>
>
> Reader drlSource = new
>
InputStreamReader(RVEngine.class.getResourceAsStream(ruleset.getDrlSourc
e()));
> //ruleset.getDrlSource() = com/cit/myDrl.dslr
>
> Reader dslSource = new
>
InputStreamReader(RVEngine.class.getResourceAsStream(ruleset.getDslSourc
e()));
>
>
>
> builder.add(ResourceFactory.newReaderResource(dslSource),
ResourceType.DSL);
>
> builder.add(ResourceFactory.newReaderResource(drlSource),
> ResourceType.DSLR);
>
>
>
>  KnowledgeBase kbase = KnowledgeBaseFactory.newKnowledgeBase();
>
>  kbase.addKnowledgePackages(builder.getKnowledgePackages());
>
>
>
>
>
> no matter what I type in my dslr (drl) file I get the following
exception on
> the highlighted line; ANY IDEA????
>
> I have 1 rule or No rule it still throws the same exception. Does it
have to
> do with any jar files?
>
>
>
> Caused by: java.lang.NullPointerException
>
>      at
>
org.drools.compiler.PackageBuilder.validateUniqueRuleNames(PackageBuilde
r.java:830)
>
>      at
> org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:555)
>
>      at
>
org.drools.compiler.PackageBuilder.addPackageFromDslr(PackageBuilder.jav
a:355)
>
>      at
>
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.j
ava:461)
>
>      at
>
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.ja
va:28)
>
>
>
>
>
> saleem
>
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>

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