[rules-users] no visitor implementation for : class org.drools.rule.TypeDeclaration
Tina Vießmann
tviessmann at stud.hs-bremen.de
Tue Aug 24 10:45:51 EDT 2010
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=/_I_nsert 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 <http://www.plugtree.com>
> - Blog @ http://ilesteban.wordpress.com
>
>
> 2010/8/23 Tina Vießmann <tviessmann at stud.hs-bremen.de
> <mailto: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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