[rules-users] Drools server link to Guvnor repository

Esteban Aliverti esteban.aliverti at gmail.com
Tue Mar 15 07:59:07 EDT 2011


I suspect that the ksession defined in spring is created BEFORE the agent
processes the resource. And even after the agent processes the resource, it
will create a new kbase (because you are not using newInstance="false"), so
the defined ksession will remain attached to an empty kbase.
I can think in 2 solutions:
   1.- Remove the ksession definition from the spring context file and
create a new ksession using the kagent:
kagent.newStatelessKnowledgeSession();
   2.- Configure ksession's kagent from spring (this only works for
stateless ksessions): <drools:ksession id="ksession" type="stateless"
knowledgeAgent="kagent1">

By the way, the subject of this email says you re linking drools-server to
Guvnor, but your changeset is not using any Guvnor's URL. Are you manually
downloading the changeset.xml and putting it in your classpath?

Best Regards,

XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

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


2011/3/15 Sébastien Raickman <sebastien.raickman at gmail.com>

> Hi all,
>
> I would like to connect to drools-server with HTTPClient with the following
>
> config:
>
> <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:execution-node id="node1" />&nbsp; &nbsp; &nbsp; &nbsp; <drools:kbase id="kbase1" node="node1"/>&nbsp; &nbsp; &nbsp; &nbsp;
>
>
>
> &nbsp; &nbsp; &nbsp; &nbsp; <drools:kagent id="kagent1" kbase="kbase1">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <drools:resources>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <drools:resource type="CHANGE_SET" source="classpath:changeset.xml" />&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; </drools:resources>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
>
>
>
> &nbsp; &nbsp; &nbsp; &nbsp; </drools:kagent>&nbsp; &nbsp; &nbsp; &nbsp;
> &nbsp; &nbsp; &nbsp; &nbsp; <drools:ksession id="ksession1" type="stateless" kbase="kbase1" node="node1"/>&nbsp; &nbsp; &nbsp; &nbsp;
>
>
>
> </beans>
>
>
> where my changeset.xml is adding a snapshot deployed with Guvnor.
>
> But I am not able to trig the rule with the following client:
>
> BatchExecutionCommandImpl command = new BatchExecutionCommandImpl();
> command.setLookup("ksession1");
> InsertObjectCommand insertObjectCommand = new InsertObjectCommand("TEST");
> FireAllRulesCommand fireAllRulesCommand = new FireAllRulesCommand();
> command.getCommands().add(insertObjectCommand);
> command.getCommands().add(fireAllRulesCommand);
>
> String xml = BatchExecutionHelper.newXStreamMarshaller().toXML(command);
>
> HttpClient httpClient = new HttpClient();
> httpClient.getHostConfiguration().setHost("host", 8080);
>
> PostMethod postMethod = new
> PostMethod("/drools-5.1.1-server/kservice/rest/execute");
> postMethod.setRequestEntity(new StringRequestEntity(xml, null, null));
>
>
> try {
>
>        httpClient.executeMethod(postMethod);
>        int code = postMethod.getStatusCode();
>        System.out.println(code);
>        String rep = postMethod.getResponseBodyAsString();
>        System.out.println(rep);
>
> } catch(Exception e) {...}
>
> Do someone have any idea how to achieve this?
>
> Thanks
>
> Sebastien
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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