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<div class="moz-cite-prefix">The ResourceChangeScanner will consider
a resource modified if last modification > last read.<br>
If your resource is a URL resource pointing to a file, the
implementation (version 5.6, at least)<br>
will delegate to File.lastModified().<br>
Make sure that whenever you (re)deploy your PKGs, the
lastModified() timestamp is updated<br>
<br>
On 03/13/2014 12:47 PM, Peach Wyss wrote:<br>
</div>
<blockquote
cite="mid:1394711239.34011.YahooMailNeo@web141102.mail.bf1.yahoo.com"
type="cite">
<div style="color:#000; background-color:#fff;
font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial,
Lucida Grande, sans-serif;font-size:10pt">Hy all<br>
<br>
We're having the following situation in our application:<br>
<br>
ChangeSet:<br>
<change-set xmlns='<a class="moz-txt-link-freetext" href="http://drools.org/drools-5.0/change-set">http://drools.org/drools-5.0/change-set</a>'
xmlns:xs='<a class="moz-txt-link-freetext" href="http://www.w3.org/2001/XMLSchema-instance">http://www.w3.org/2001/XMLSchema-instance</a>'<br>
xs:schemaLocation='<a class="moz-txt-link-freetext" href="http://drools.org/drools-5.0/change-set">http://drools.org/drools-5.0/change-set</a>
<a class="moz-txt-link-freetext" href="http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd">http://anonsvn.jboss.org/repos/labs/labs/jbossrules/trunk/drools-api/src/main/resources/change-set-1.0.0.xsd</a>'><br>
<add><br>
<resource source='<a class="moz-txt-link-freetext" href="file:rules/rules.pkg">file:rules/rules.pkg</a>' type='PKG' /><br>
</add><br>
</change-set><br>
<br>
<br>
Code:<br>
...<br>
// Build initial KnowledgeBase<br>
KnowledgeBuilderConfiguration kbuilderConfig =
KnowledgeBuilderFactory.newKnowledgeBuilderConfiguration(null,
classloaders);<br>
knowledgeBuilder =
KnowledgeBuilderFactory.newKnowledgeBuilder(kbuilderConfig);<br>
knowledgeBuilder.add(resource, resourceType); //Resource:
URL-Resource (Patch to ChangeSet), ResourceType: ChangeSet<br>
Collection<KnowledgePackage> knowledgePackages =
knowledgeBuilder.getKnowledgePackages();<br>
knowledgeBase.addKnowledgePackages(knowledgePackages);<br>
<br>
// Create and configure Knowledge Agent<br>
KnowledgeAgentConfiguration knowledgeAgentConfig =
KnowledgeAgentFactory.newKnowledgeAgentConfiguration();<br>
knowledgeAgentConfig.setProperty("drools.agent.useKBaseClassLoaderForCompiling",
"true");<br>
knowledgeAgentConfig.setProperty("drools.agent.newInstance",
"false");<br>
knowledgeAgent =
KnowledgeAgentFactory.newKnowledgeAgent("MyAgent",
knowledgeBase, knowledgeAgentConfig);<br>
knowledgeAgent.addEventListener(new
KnowledgeAgentEventListener() {...} // Just for debugging
purposes<br>
knowledgeAgent.monitorResourceChangeEvents(true);<br>
knowledgeAgent.applyChangeSet(resource);<br>
<br>
// Configure Notification and Scanner<br>
ResourceChangeScannerConfiguration resourceChangeScannerConfig =
ResourceFactory<br>
.getResourceChangeScannerService().newResourceChangeScannerConfiguration();<br>
resourceChangeScannerConfig.setProperty("drools.resource.scanner.interval",
"10");<br>
ResourceFactory.getResourceChangeScannerService().configure(resourceChangeScannerConfig);<br>
ResourceFactory.getResourceChangeNotifierService().start();<br>
ResourceFactory.getResourceChangeScannerService().start();<br>
<br>
// Get KnowledgeBase from Agent<br>
knowledgeBase = knowledgeAgent.getKnowledgeBase();<br>
...<br>
<br>
<br>
When i replace the rules.pkg with a new package (exported from
guvnor with a newer "Date Modified"), the Knowledge-Base is
newly generated. When I replace the pkg with the Package from
the previous Version (older "Date modified"), nothing happens
(despite the pkg has changed).<br>
<br>
Question:<br>
Does the agent only updates the Knowledge-Base, when the
replaced pkg-File has a newer "Date Modified"?<br>
In our scenario, the expected behaviour would be that the Agent
updates the Knowledge-Base everytime the pkg-file changes, so
that we can switch between newer and older versions of the
pkg-file. Any idea how to achieve this?<br>
<br>
Thanks for your help.<br>
<br>
Kind regards,<br>
Peter<br>
</div>
<br>
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</blockquote>
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