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<div class="moz-cite-prefix">The bug was caused by one of the
InputStreams that was not closed properly which caused the
knowledgeAgent to block. <br>
I think my issues are solved now. <br>
<br>
Thanks for looking into this.<br>
Kind Regards,<br>
<br>
Op 31/07/2013 14:19, De Rooms Brecht schreef:<br>
</div>
<blockquote cite="mid:51F900C5.2000900@vub.ac.be" type="cite">
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<div class="moz-cite-prefix">Hello David and thanks for
responding.<br>
I know it supports these event listeners and I use them. In my
program, I have two knowledge agents and the first one
(preprocessing) will read the file, preprocess a DRL and then
write a second modified DRL file in a folder that is monitored
by the second one. When I modify the original DRL file <b>(1.</b>
in prints below<b>)</b> monitored by the preprocessing agent,
everything works fine and the rule is triggered<b> (</b><b>2.)</b>.
However, when I delete a file <b> (</b><b>3.)</b>, the
knowledgeAgent just blocks after AfterChangeSetAppliedEvent and
does not do anything anymore.. If I send new data in the
knowledgeAgent it does not react anymore. <br>
<br>
I would expect to get a stacktrace of what went wrong but I do
not get any info besides of the systemeventlistener or
knowledgeagentlistener. Is there any way I can get a stacktrace?<br>
Kind Regards,<br>
De Rooms Brecht<br>
<br>
<u><b>1. Resources Changed => Modified: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</b></u><br>
<small><i> eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED):
[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 1:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED):
[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 1:::
==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 1:::
==>[ResourceCompilationFailedEvent:
org.drools.builder.impl.KnowledgeBuilderImpl@70d0d127]</i><i><br>
</i><i> eventListener 1:::
==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@49669be]</i><i><br>
</i><i> eventListener 1:::
==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 2:::
==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 2:::
==>[BeforeResourceProcessedEvent(RESOURCE_REMOVED):
[FileResource
file='knowledge\packaged\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 2:::
==>[AfterResourceProcessedEvent(RESOURCE_REMOVED):
[FileResource
file='knowledge\packaged\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 2:::
==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 2:::
==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@11c834d1]</i></small><br>
<br>
<u><b>2. Rules are triggered when the PKG file its knowledge is
updated:</b></u><br>
<small><i> Changed This Rule::: Got Event: TestEvent(
number=5, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=4, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=2, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=1, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=2, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=1, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=2, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i> Changed This Rule::: Got Event: TestEvent(
number=1, message=doesDynamicEventTypeWork? )</i><i><br>
</i><i><br>
</i><i> eventListener 2:::
==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[], resourcesAdded=[],
resourcesModified=[[FileResource
file='knowledge\packaged\test.brules.testRule.drl']],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 1:::
==>[BeforeChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 1:::
==>[BeforeChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]</i></small><br>
<br>
<br>
<u><b>3. </b></u><u><b>Resources Changed => </b></u><u><b>
Removed: [[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</b></u><br>
<small><i> eventListener 1:::
==>[BeforeResourceProcessedEvent(RESOURCE_MODIFIED):
[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 1:::
==>[AfterResourceProcessedEvent(RESOURCE_MODIFIED):
[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']]</i><i><br>
</i><i> eventListener 1:::
==>[AfterChangeSetProcessedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]</i><i><br>
</i><i> eventListener 1:::
==>[KnowledgeBaseUpdatedEvent:
org.drools.impl.KnowledgeBaseImpl@49669be]</i><i><br>
</i><i> eventListener 1:::
==>[AfterChangeSetAppliedEvent:
ChangeSetImpl{resourcesRemoved=[[FileResource
file='knowledge\realtimeKnowledge\test.brules.testRule.drl']],
resourcesAdded=[], resourcesModified=[],
knowledgeDefinitionsRemoved=[]}]</i></small><br>
<br>
<font color="#cc0000"> .... and then it was quiet....</font><br>
<br>
Op 31/07/2013 09:42, Davide Sottara schreef:<br>
</div>
<blockquote cite="mid:51F8BFFD.1030207@gmail.com" type="cite">
<pre wrap="">The KA logs to a SystemEventListener, and supports a dedicated event
listener for
additions/updates/etc...
You can do:
kagent.setSystemEventListener( new PrintStreamSystemEventListener() );
kagent.addEventListener( new DebugKnowledgeAgentEventListener( ) );
On 07/30/2013 01:55 AM, De Rooms Brecht wrote:
</pre>
<blockquote type="cite">
<pre wrap="">Dear Drools users,
I have been testing with the KnowledgeAgent from version 5.4 and 5.5. It
monitors a changeset and is set to incrementally build the
knowledgebase. I noticed that it sometimes crashes but never throws out
errors. This happens for example when I define a type two times and when
I remove a file. Does anyone experience similar behaviour and has an
idea of how I could see the errors? I already tried to check the errors
by building it myself using a knowledgebuilder before I update the file
that the knowledgeAgent monitors but that's quite a dirty solution.
Kind Regards,
De Rooms Brecht
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