[rules-users] KnowledgeAgent ChangeSet failing to reload resources

[Jason Davidson]

Eric,

I've been fighting something similar to your problem as posted
here<http://lists.jboss.org/pipermail/rules-users/2010-November/017124.html>.


I'm interested in what your KnowledgeAgent setup because I can't get the
agent to detect changes to rule PKG files.  Are you using Spring?

Thanks!
Jason

On Thu, Nov 4, 2010 at 8:41 AM, Fink, Eric [USA] <fink_eric at bah.com> wrote:

> Greetings.  I am using Drools 5.1.1's KnowledgeAgent ChangeSet
> functionality and have come across an issue.
>
> here is the use case:
>
> Fire up the application with a valid DRL file. Works as designed.
> Update the DRL file. ChangeSet senses updated file, KnowledgeBase is
> updated with updated rules, yadda, yadda. Works as designed.
> Update the DRL file and introduce errors in the LHS of the rule. For
> example, I changed Sensor to Sccensor in the example below and $masterId is
> not defined. The following is reported as expected:
>
> KnowledgeAgent rebuilding KnowledgeBase using ChangeSet
> [2010:11:308 09:11:515:info] KnowledgeAgent performing an incremental build
> of the ChangeSet
> [2010:11:308 09:11:843:debug] KnowledgeAgent has KnowledgeBuilder errors
>  object=Unable to resolve ObjectType 'Sccensor' : [Rule name='18)
> sensorCount derived variable']
> Rule Compilation error : [Rule name='18) sensorCount derived variable']
>        bass/enrichment/Rule_18__sensorCount_derived_variable_0.java (7:590)
> : $masterID cannot be resolved
>        bass/enrichment/Rule_18__sensorCount_derived_variable_0.java (8:624)
> : $masterID cannot be resolved
>        bass/enrichment/Rule_18__sensorCount_derived_variable_0.java (9:769)
> : $masterID cannot be resolved
>
> Update the DRL file to the previously working version. The ChangeSet never
> senses that the file has been updated. It just runs along checking every x
> seconds.
>
> Has anyone experienced this? Is there a listener that should be firing
> somewhere?
>
> Thanks is advance.
>
> - Eric
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