[rules-users] Problem using KnowledgeAgent

[Mark Proctor]

Michael Neale wrote:
> So from the filesystem it won't pick up changes? (does it throw the
> same exception).
>   
I believe the exception  shown is a red herring, as the looping thread 
of the scanner is interrupted as part of the stop() process and we log 
that exception, incase the exception was caused by something else.

Mark
>
> On Thu, Feb 19, 2009 at 5:34 AM, Dan Seaver <dan.seaver at ge.com> wrote:
>   
>> Mark,
>> I have some more information for you. The exception occurs when I issue:
>>
>> agent.monitorResourceChangeEvents(true|false)
>>
>> If I comment out that code, I don't get the exception, but I don't get
>> changes either. I tried it with both the Guvnor repository and with a
>> deployed package on the file system.
>>
>> I won't have time to create the test you requested until the weekend. Let me
>> know if you still want it.
>>
>> Dan
>>
>>
>> Mark Proctor wrote:
>>     
>>> Dan Seaver wrote:
>>>       
>>>> I setup a KnowledgeAgent using the example code in the JavaDoc for
>>>> KnowledgeAgentFactory to access a compiled package in Guvnor. The package
>>>> runs fine, but changes to the package are not picked up. I believe this
>>>> is
>>>> due to the ChangeSet notification thread being interrupted. But why?
>>>>
>>>>         
>>> Hmm that's not good. I have the following unit test:
>>> http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-compiler/src/test/java/org/drools/agent/KnowledgeAgentTest.java
>>>
>>> Could you provide an update for new tests for detecting url changes?
>>> When making the test you might find it easier to look at the previous
>>> ruleagent tests:
>>> http://anonsvn.labs.jboss.com/labs/jbossrules/trunk/drools-core/src/test/java/org/drools/agent/URLScannerTest.java
>>>
>>> Mark
>>>       
>>>> Also, I'm getting some messages about failing to read schema document. I
>>>> think it is caused by the xml for the ChangeSet, but I'm using the
>>>> example
>>>> from the JavaDocs.
>>>>
>>>>         
>>> We haven't provided an XSD yet, so it'll provide schema validation
>>> issues, those can be ignored.
>>>       
>>>> Here's a snippet from the log:
>>>>
>>>> [2009:02:48 23:02:905:info] KnowledegAgent has started listening for
>>>> ChangeSet notifications
>>>> [2009:02:48 23:02:905:info] KnowledgAgent created, with configuration:
>>>> monitorChangeSetEvents=true scanResources=true scanDirectories=true
>>>> [2009:02:48 23:02:905:exception
>>>> java.lang.RuntimeException: KnowledgeAgent ChangeSet notification thread
>>>> has
>>>> been interrupted
>>>>      at
>>>> org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.run(KnowledgeAgentImpl.java:465)
>>>>      at java.lang.Thread.run(Unknown Source)
>>>> Caused by: java.lang.InterruptedException
>>>>      at
>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.reportInterruptAfterWait(Unknown
>>>> Source)
>>>>      at
>>>> java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(Unknown
>>>> Source)
>>>>      at java.util.concurrent.LinkedBlockingQueue.take(Unknown Source)
>>>>      at
>>>> org.drools.agent.impl.KnowledgeAgentImpl$ChangeSetNotificationDetector.run(KnowledgeAgentImpl.java:463)
>>>>      ... 1 more
>>>> [2009:02:48 23:02:937:info] KnowledegAgent has stopped listening for
>>>> ChangeSet notifications
>>>> (null: 1, 207): schema_reference.4: Failed to read schema document
>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>> the
>>>> document could not be read; 3) the root element of the document is not
>>>> <xsd:schema>.
>>>> (null: 1, 207): cvc-elt.1: Cannot find the declaration of element
>>>> 'change-set'.
>>>> (null: 1, 216): schema_reference.4: Failed to read schema document
>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>> the
>>>> document could not be read; 3) the root element of the document is not
>>>> <xsd:schema>.
>>>> (null: 1, 343): schema_reference.4: Failed to read schema document
>>>> 'drools-change-set-5.0.xsd', because 1) could not find the document; 2)
>>>> the
>>>> document could not be read; 3) the root element of the document is not
>>>> <xsd:schema>.
>>>> [2009:02:48 23:02:390:info] KnowledgAgent applying ChangeSet
>>>>
>>>>
>>>>         
>>> _______________________________________________
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>>> rules-users at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/rules-users
>>>
>>>
>>>       
>> --
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>>
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>>     
>
>
>
>   

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