[rules-users] no visitor implementation for : class org.drools.rule.TypeDeclaration
esteban.aliverti at gmail.com
esteban.aliverti at gmail.com
Fri Oct 29 07:44:25 EDT 2010
Honestly, I didn't have time to take a look at it :(
Could you please provide me a simple test project where I can see this
issue?
Best,
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com
2010/10/24 Tina Vießmann <tviessmann at stud.hs-bremen.de>
> Hi Esteban,
>
> #2 is still a problem for me. Have you found something out?
>
> Thank you.
> Tina
>
>
> Hi,
>
> #1 I'm not sure if I've understood it correct. Is the message displayed
> every time a resource containing declares is modified or does is it
> displayed if the declare statements are changed?
> The message will appear every time a resource containing a type definition
> is modified.
>
> #2 The following extract of my original log extract says that the LHS of
> two rules has been changed. But I haven't modified anything on them. I've
> just deleted a rule. So what does it mean? Or am I missunderstanding the
> messages? Because for the the first rule no changes have been detected (and
> that is what I would expect for all rules except the deleted on.)
> This is strange. This message should only appear if the LHS of a rule has
> changed. I will take a look to see if this is a bug.
>
>
> Best,
>
> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>
> Esteban Aliverti
> - Developer @ http://www.plugtree.com
> - Blog @ http://ilesteban.wordpress.com
>
>
> 2010/8/24 Tina Vießmann <tviessmann at stud.hs-bremen.de>
>
>> Thank you for the explanation, Esteban. :)
>> I'm sorry, but I have still some uncertainties about it.
>>
>> #1 I'm not sure if I've understood it correct. Is the message displayed
>> every time a resource containing declares is modified or does is it
>> displayed if the declare statements are changed?
>>
>> #2 The following extract of my original log extract says that the LHS of
>> two rules has been changed. But I haven't modified anything on them. I've
>> just deleted a rule. So what does it mean? Or am I missunderstanding the
>> messages? Because for the the first rule no changes have been detected (and
>> that is what I would expect for all rules except the deleted on.)
>>
>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: [Rule name=
>> *Warning threshold exceeded to many times*, agendaGroup=MAIN, salience=0,
>> no-loop=false] didn't change. Removing from diff package and adding it to
>> unmodified list.
>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: Comparing
>> [Rule name=*Insert Watcher Into Knowledge Base*, agendaGroup=MAIN,
>> salience=0, no-loop=false] against [Rule name=Insert Watcher Into Knowledge
>> Base, agendaGroup=MAIN, salience=0, no-loop=false]
>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: *The rules
>> have different LHS*
>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: Comparing
>> [Rule name=*Add Event to Watcher Set*, agendaGroup=MAIN, salience=0,
>> no-loop=false] against [Rule name=Add Event to Watcher Set,
>> agendaGroup=MAIN, salience=0, no-loop=false]
>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: *The rules
>> have different LHS*
>>
>> Thanks :)
>> Tina
>>
>>
>>
>> Am 23.08.2010 23:33, schrieb Esteban Aliverti:
>>
>> When working on incremental change-set processing mode, Knowledge Agent
>> performs a diff between the original and the modified resources. Modified
>> resources are compiled, and a visitor pattern is used to loop over knowledge
>> definitions (such as rules, functions, queries, etc.).
>> So if rule1 was modified in the new resource, it is removed from the
>> original kbase and replaced with the new implementation. The thing is that
>> kagent doesn't implement a visitor for TypeDeclaration (when you use *
>> declare* in your DRL to define your model) so it doesn't know how to
>> handle them.
>> I have recently fix a typo in the visitor implementation that prevented
>> you to receive a better message:
>>
>> "BinaryResourceDiffProducerImpl: Couldn't handle "+yourDefinitionName+".
>> We must leave it in the new Package."
>>
>> This means that kagent doesn't support modifications on declared types
>> yet.
>>
>> Best,
>>
>>
>> XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
>>
>> Esteban Aliverti
>> - Developer @ http://www.plugtree.com
>> - Blog @ http://ilesteban.wordpress.com
>>
>>
>> 2010/8/23 Tina Vießmann <tviessmann at stud.hs-bremen.de>
>>
>>> Hi,
>>>
>>> I'm getting a two red highlighted outputs in eclipse if I modify my rules
>>> file during run time. Besides that the modifications seem to work.
>>> What does it mean?
>>>
>>> The full output I get when the resource change is detected is listed
>>> below. The bold lines are the concerned ones.
>>>
>>> Thanks for any help! :)
>>> Tina
>>>
>>>
>>> [2010:08:235 21:08:296:debug] ResourceChangeScanner attempt to scan 1
>>> resources
>>> [2010:08:235 21:08:296:debug] ResourceChangeScanner modified
>>> resource=[ClassPathResource path='testRule.drl'] : 1282559206875 :
>>> 1282591705000
>>> [2010:08:235 21:08:296:debug] ResourceChangeNotification received
>>> ChangeSet notification
>>> [2010:08:235 21:08:296:debug] ResourceChangeScanner thread is waiting for
>>> 10 seconds.
>>> [2010:08:235 21:08:296:debug] ResourceChangeNotification processing
>>> ChangeSet
>>> [2010:08:235 21:08:296:debug] ResourceChangeNotification ChangeSet
>>> modified resource=[ClassPathResource path='testRule.drl'] for
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4
>>> [2010:08:235 21:08:296:debug] KnowledgeAgent received ChangeSet changed
>>> notification
>>> [2010:08:235 21:08:296:info] KnowledgeAgent applying ChangeSet
>>> [2010:08:235 21:08:296:debug] KnowledgeAgent removing mappings for
>>> resource=[ClassPathResource path='testRule.drl'] with unsubscribe=true
>>> [2010:08:235 21:08:296:debug] KnowledgeAgent notifier unsubscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:296:debug] ResourceChangeNotification unsubscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:296:debug] ResourceChangeScanner unsubcribing
>>> notifier=org.drools.io.impl.ResourceChangeNotifierImpl at 13576a2 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:296:debug] ResourceChangeScanner
>>> resource=[ClassPathResource path='testRule.drl'] now has no subscribers
>>> [2010:08:235 21:08:296:debug] KnowledgeAgent rebuilding KnowledgeBase
>>> using ChangeSet
>>> [2010:08:235 21:08:296:info] KnowledgeAgent performing an incremental
>>> build of the ChangeSet
>>> [2010:08:235 21:08:296:debug] ResourceChangeNotification thread is
>>> waiting for queue update
>>> [INFO ] 21:30:10,375 [main] "Event retracted." (DRL Logger)
>>> [2010:08:235 21:08:453:debug] KnowledgeAgent: Diffing: [ClassPathResource
>>> path='testRule.drl']
>>> [INFO ] 21:30:10,453 [main] "Event retracted." (DRL Logger)
>>> [2010:08:235 21:08:500:debug] BinaryResourceDiffProducerImpl: [Rule
>>> name=delete parameter values, agendaGroup=MAIN, salience=0, no-loop=false]
>>> is not present anymore. Adding to removed list.
>>> [2010:08:235 21:08:500:debug] BinaryResourceDiffProducerImpl:
>>> org.drools.rule.Function at 67fe80 did change. Marking as removed so it new
>>> version could be added later.
>>> [2010:08:235 21:08:500:debug] BinaryResourceDiffProducerImpl: Comparing
>>> [Rule name=Warning threshold exceeded to many times, agendaGroup=MAIN,
>>> salience=0, no-loop=false] against [Rule name=Warning threshold exceeded to
>>> many times, agendaGroup=MAIN, salience=0, no-loop=false]
>>> *no visitor implementation for : class org.drools.rule.TypeDeclaration :
>>> org.drools.rule.TypeDeclaration at 95f290
>>> no visitor implementation for : class org.drools.rule.TypeDeclaration :
>>> org.drools.rule.TypeDeclaration at bfd66a*
>>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: [Rule
>>> name=Warning threshold exceeded to many times, agendaGroup=MAIN, salience=0,
>>> no-loop=false] didn't change. Removing from diff package and adding it to
>>> unmodified list.
>>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: Comparing
>>> [Rule name=Insert Watcher Into Knowledge Base, agendaGroup=MAIN, salience=0,
>>> no-loop=false] against [Rule name=Insert Watcher Into Knowledge Base,
>>> agendaGroup=MAIN, salience=0, no-loop=false]
>>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: The rules
>>> have different LHS
>>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: Comparing
>>> [Rule name=Add Event to Watcher Set, agendaGroup=MAIN, salience=0,
>>> no-loop=false] against [Rule name=Add Event to Watcher Set,
>>> agendaGroup=MAIN, salience=0, no-loop=false]
>>> [2010:08:235 21:08:546:debug] BinaryResourceDiffProducerImpl: The rules
>>> have different LHS
>>> [2010:08:235 21:08:546:debug] KnowledgeAgent: Removing: [Rule name=delete
>>> parameter values, agendaGroup=MAIN, salience=0, no-loop=false]
>>> [2010:08:235 21:08:546:debug] KnowledgeAgent removing Rule=[Rule
>>> name=delete parameter values, agendaGroup=MAIN, salience=0, no-loop=false]
>>> from package=net.eads.astrium.aits.cep.rules
>>> [2010:08:235 21:08:546:debug] KnowledgeAgent: Removing:
>>> org.drools.rule.Function at 67fe80
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=[Rule name=Warning threshold exceeded to many times,
>>> agendaGroup=MAIN, salience=0, no-loop=false]
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent obtaining pkg
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=[Rule name=Insert Watcher Into Knowledge Base,
>>> agendaGroup=MAIN, salience=0, no-loop=false]
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent notifier subscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeNotification subscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeScanner subcribing
>>> notifier=org.drools.io.impl.ResourceChangeNotifierImpl at 13576a2 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=[Rule name=Add Event to Watcher Set, agendaGroup=MAIN,
>>> salience=0, no-loop=false]
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent notifier subscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeNotification subscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=org.drools.rule.TypeDeclaration at 17dff15
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent notifier subscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeNotification subscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=org.drools.rule.TypeDeclaration at f5cbda
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent notifier subscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeNotification subscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent mapping
>>> resource=[ClassPathResource path='testRule.drl'] to
>>> KnowledgeDefinition=org.drools.rule.Function at 11a59ce
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent notifier subscribing to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] ResourceChangeNotification subscribing
>>> listener=org.drools.agent.impl.KnowledgeAgentImpl at b40ec4 to
>>> resource=[ClassPathResource path='testRule.drl']
>>> [2010:08:235 21:08:562:debug] KnowledgeAgent adding
>>> KnowledgeDefinitionsPackage net.eads.astrium.aits.cep.rules
>>> [2010:08:235 21:08:578:info] KnowledgeAgent incremental build of
>>> KnowledgeBase finished and in use
>>> [2010:08:235 21:08:578:debug] KnowledgeAgent finished rebuilding
>>> KnowledgeBase using ChangeSet
>>>
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