[rules-users] no visitor implementation for : class org.drools.rule.TypeDeclaration

Thu Aug 26 14:04:29 EDT 2010

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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