<change-set xmlns='http://drools.org/drools-5.0/change-set'

xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'

xs:schemaLocation='http://drools.org/drools-5.0/change-set http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd' >

<add>

<resource source="http://10.1.109.54:8080/drools-5.1.1-guvnor/org.drools.guvnor.Guvnor/package/com.cjs.jworks.rules.cases/LATEST"

type='PKG' basicAuthentication="enabled" username="admin" password="admin" />

</add>

</change-set>

At startup I see that the KnowledgeAgent registers a listener but never detects changes:

[2010:11:307 15:11:506:info] ResourceChangeScanner reconfigured with interval=60

[2010:11:307 15:11:506:info] ResourceChangeScanner created with default interval=60

[2010:11:307 15:11:506:info] ResourceChangeScanner reconfigured with interval=10

[2010:11:307 15:11:528:info] ResourceChangeNotification created

[2010:11:307 15:11:528:debug] ResourceChangeNotification monitor added monitor=org.drools.io.impl.ResourceChangeScannerImpl@616181be

[2010:11:307 15:11:529:debug] KnowledgeAgent building resource map

[2010:11:307 15:11:529:info] KnowledegAgent has started listening for ChangeSet notifications

[2010:11:307 15:11:529:info] KnowledgeAgent created, with configuration:

monitorChangeSetEvents=true scanResources=true scanDirectories=true newInstance=true

[2010:11:307 15:11:530:info] KnowledgeAgent applying ChangeSet

[2010:11:307 15:11:531:debug] KnowledgeAgent processing sub ChangeSet=[ClassPathResource path='drools-changeset.xml']

[2010:11:307 15:11:919:debug] KnowledgeAgent notifier subscribing to resource=[UrlResource path='http://10.1.109.54:8080/drools-5.1.1-guvnor/org.drools.guvnor.Guvnor/package/com.cjs.jworks.rules.cases/LATEST']

[2010:11:307 15:11:920:debug] ResourceChangeNotification subscribing listener=org.drools.agent.impl.KnowledgeAgentImpl@d2a7c1e to resource=[UrlResource path='http://10.1.109.54:8080/drools-5.1.1-guvnor/org.drools.guvnor.Guvnor/package/com.cjs.jworks.rules.cases/LATEST']

[2010:11:307 15:11:920:debug] ResourceChangeScanner subcribing notifier=org.drools.io.impl.ResourceChangeNotifierImpl@603a9c52 to resource=[UrlResource path='http://10.1.109.54:8080/drools-5.1.1-guvnor/org.drools.guvnor.Guvnor/package/com.cjs.jworks.rules.cases/LATEST']

[2010:11:307 15:11:920:debug] KnowledgeAgent rebuilding KnowledgeBase using ChangeSet

Thanks!

Jason

2010/9/23 Clandes Tino <clandestino_bgd@yahoo.co.uk>

Hi,

I've also faced the same problem.

Hope somebody could give a hint.

thanks & best,

milan

--- On Mon, 20/9/10, Graham Thomson <gthomson@fizzback.com> wrote:

From: Graham Thomson <gthomson@fizzback.com>
Subject: [rules-users] Starting resource change scanner and notifier in drools-server.
To: rules-users@lists.jboss.org
Date: Monday, 20 September, 2010, 15:24

Hi,

I would like to ask for help with setting up drools-server with Guvnor. I am using version 5.1.1 of both.

I am trying to set up an instance of drools-server in Tomcat that periodically loads new updates of packages published in Guvnor (both drools-server and Guvnor run in the same instance of Tomcat).

My change set definition is as follows:

<?xml version="1.0" encoding="UTF-8"?>
<change-set xmlns='http://drools.org/drools-5.0/change-set'
xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'
xs:schemaLocation='http://drools.org/drools-5.0/change-set
http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd'>
<add>
    <resource source='http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/<one of my packages>/LATEST'
      type='PKG' basicAuthentication="enabled" username="<username>" password="" />
    <resource source="http://localhost:8080/drools-guvnor/org.drools.guvnor.Guvnor/package/<another of my packages>/LATEST"
      type="PKG" basicAuthentication="enabled" username="<username>" password="" />
</add>
</change-set>

My knowledge-services.xml configuration is as follows (based on the unit test examples highlighted in http://article.gmane.org/gmane.comp.java.drools.user/20992/match=drools+spring):

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:drools="http://drools.org/schema/drools-spring"
       xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
                           http://drools.org/schema/drools-spring http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-container/drools-spring/src/main/resources/org/drools/container/spring/drools-spring-1.0.0.xsd">

<drools:resource-change-scanner id="s1" interval="5" />

<drools:execution-node id="node1" />

<drools:ksession id="ksession1" type="stateless" kbase="kbase1" node="node1"/>

<drools:kbase id="kbase1" node="node1" />

<drools:kagent id="kagent1" kbase="kbase1">
    <drools:resources>
      <drools:resource type="CHANGE_SET" source="classpath:changeset.xml" />
    </drools:resources>
</drools:kagent>

</beans>

On loading drools-server, the resources listed in the change set are loaded and available.

The problem is that when a new package built and published in Guvnor, drools-server does not detect this and update itself. The effect is the same as if a KnowledgeAgent were used locally and

ResourceFactory.getResourceChangeNotifierService().start();
ResourceFactory.getResourceChangeScannerService().start();

were not called. This leads me to the assumption that drools-server does not start these services by default.

My question is then can/how do I configure drools-server to start these services such that it will update new changes from Guvnor automatically?

Thanks a lot for any help you can offer,

Cheers,

Graham.

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