[rules-users] unable to resolve Type Declaration class

[richarda]

Still trying to get this to work.
I have managed to create from a default (new) guvnor setup.

Steps I do..
1. Create fresh guvnor
2. In eclipse create  Message.java file in package com.sample, and create a
jar file
3. In guvnor import the model for the Message.jar file
4. In guvnor create a category
5. Create an import statement for  import com.sample.Message
6. Create a simple technical rule,  something like   when, Message(), then,
System.out.println(".");
7. Build the pkg
8. download the pkg

use the code from previous post to load the pkg...
it works fine..

now, goto guvnor advanced view and change the Configuration from:
import com.sample.Message

to:

import com.sample.Message;

declare Message
  @role( event )
end


build the pkg,
download the pkg,
run the test program...

I get:
org.drools.RuntimeDroolsException: unable to resolve Type Declaration class
'Message'
	at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:754)
	at
org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:515)
	at
org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)
	at com.sample.DroolsTest.readKnowledgeBase(DroolsTest.java:69)
	at com.sample.DroolsTest.main(DroolsTest.java:27)


richarda wrote:
> 
> So, my code is doing this:
>  
>  KnowledgeBaseConfiguration conf =
> KnowledgeBaseFactory.newKnowledgeBaseConfiguration();
>             conf.setOption(EventProcessingOption.STREAM);
>             KnowledgeBuilder builder =
> KnowledgeBuilderFactory.newKnowledgeBuilder();
>             try {
>                 File f = new File("/tmp/my.pkg");
>                 InputStream stream = new FileInputStream(f);
>                 if (stream == null) {
>                     jlog.fatal("Unable to find rule pkg");
>                 } else {
>                     jlog.info("adding pkg");
>                    
> builder.add(ResourceFactory.newInputStreamResource(stream),
> ResourceType.PKG);
>                 }
>             } catch (Exception e) {
>                 e.printStackTrace();
>             }
>             KnowledgeBase kbase =
> KnowledgeBaseFactory.newKnowledgeBase(conf);
>             kbase.addKnowledgePackages(builder.getKnowledgePackages());
>             jlog.info("setup creating knowledge session");
>             ksession = kbase.newStatefulKnowledgeSession();
>             jlog.info(" setup ksession created");
> 
> 
> The pkg was created from Guvnor.
> 
> If in the package declaration area in Guvnor,  (where you put the import
> statements)
> If I put
> declare Signature
>  @role ( event )
> end
> 
> then build the package, save it to disk /tmp/my.pkg
> on startup I get:
> 
> [#|2009-11-24T14:50:38.944+0000|WARNING|sun-appserver2.1|javax.enterprise.system.stream.err|_ThreadID=12;_ThreadName=pool-1-thread-3;_RequestID=7c35064d-757e-4519-b5eb-433db89e168d;|org.drools.RuntimeDroolsException:
> unable to resolve Type Declaration class 'Signature'
> 	at org.drools.compiler.PackageBuilder.addPackage(PackageBuilder.java:754)
> 	at
> org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:515)
> 	at
> org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:25)
> 
> 
> I need to declare 'Signature' as an 'event'
> Am I doing this wrong?
> 
> If I do this all in Eclipse and load the DRL files manually it all works.
> 

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