[rules-users] KnowledgeAgent Changeset problems

[Esteban Aliverti]

Could you append the log output of the Knowledge Agent?

Best Regards,

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Esteban Aliverti
- Developer @ http://www.plugtree.com
- Blog @ http://ilesteban.wordpress.com


On Wed, Apr 4, 2012 at 4:12 PM, albertorugnone
<arugnonechemical at gmail.com>wrote:

> Thank you every body for your answer, unfortunately I was't able to reply
> to
> you until now because other stuff overwhelmed me literally at work.
> Anyway I was going ahead using KnowledgeAgent, following your comments and
> other suggestion. Now I am able to load rules applying change set with
> KnowledgeAgent (thank you!!!), but honestly this is a poor success because,
> even if when I change the rule KnowledgeAgent says "incremental build of
> KnowledgeBase finished and in use" nothing changes.
> It seems that changes at rules have no effect and it is pretty weird. I
> made
> a maven project with eclipse to explain you better my problem. Is a simple
> main. I am working for a better junit test. Anyway if you change the rule
> in
> the folder knowledge you can test the problem by yourself.
> Briefly I will explain the project:
>
> Here the code:
>
>                _l.warn("START");
>                 String xml = "";
>                xml += "<change-set xmlns='
> http://drools.org/drools-5.0/change-set'&quot;;
>                xml += &quot;
> xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'&quot;;
>                xml += &quot;
> xs:schemaLocation='http://drools.org/drools-5.0/change-set
> drools-change-set-5.0.xsd' >";
>                xml += "    <add> ";
>                 xml += "        <resource
> source='Z:/EXP/drools-test/knowledge/test.drl'
> type='DRL' />";
>                xml += "    </add> ";
>                xml += "</change-set>";
>                FileManager fileManager = new FileManager();
>                File fxml = fileManager.newFile("changeset.xml");
>                 Writer output = new BufferedWriter(new FileWriter(fxml));
>                output.write(xml);
>                output.close();
>                 // build a KnowledgeAgent
>                 ResourceFactory.getResourceChangeNotifierService()
>                                                .start();
>                ResourceFactory.getResourceChangeScannerService()
>                                                .start();
>
>                final ResourceChangeScannerConfiguration sconf =
> ResourceFactory.getResourceChangeScannerService()
>
>
>  .newResourceChangeScannerConfiguration();
>                sconf.setProperty("drools.resource.scanner.interval", "2");
>                ResourceFactory.getResourceChangeScannerService()
>                                                .configure(sconf);
>
>                final KnowledgeAgentConfiguration aconf =
> KnowledgeAgentFactory.newKnowledgeAgentConfiguration();
>                aconf.setProperty("drools.agent.scanDirectories", "true");
>                aconf.setProperty("drools.agent.scanResources", "true");
>                 /*
>                 * important newInstance has to be false in order to update
> the
>                 * knowledge base and not rebuild a new one
>                 */
>                aconf.setProperty("drools.agent.newInstance", "false");
>                final KnowledgeAgent agent =
> KnowledgeAgentFactory.newKnowledgeAgent("pch.sel.knowledge.agent", aconf);
>                 // if (_l.isDebugEnabled()) {
>                /* we need some log every time */
>                agent.setSystemEventListener(new
> PrintStreamSystemEventListener());
>
>
> agent.applyChangeSet(ResourceFactory.newClassPathResource("pch.sel.kwset.xml"));
>                // fire rules
>                StatefulKnowledgeSession session =
> agent.getKnowledgeBase().newStatefulKnowledgeSession();
>                session.fireAllRules();
>                _l.warn("END");
>
>
> and here the rule
>
>
> package it.ipiu.drools.KnowledgeAgent.test
>
> rule "test rule" timer(int: 0s 2s)
>    when
>        eval(true);
>    then
>            System.out.println("ciao");
> end
>
>
>
> If I try to change timer from 2s to 2m nothing changes even if
> KnowledgeAgent seems to reload all.
>
> *Please help!!! I googled the problem everywhere without solution!!!*
>
>
>
> --
> View this message in context:
> http://drools.46999.n3.nabble.com/KnowledgeAgent-Changeset-problems-tp3787165p3884201.html
> Sent from the Drools: User forum mailing list archive at Nabble.com.
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>
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