Yes, the exception occurs on both the filesystem and Guvnor, and it happens
whether I set the value to true or false.

Michael Neale wrote:

So from the filesystem it won't pick up changes? (does it throw the
same exception).

On Thu, Feb 19, 2009 at 5:34 AM, Dan Seaver <dan.seaver@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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Michael D Neale
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blog: michaelneale.blogspot.com
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