问题
I have a project setup in KIE Workbench, version 6.5.0 and a KIE execution server 6.5.0 running, all on the same local Wildfly 10. It is working fine. I have a simple rule that is being executed in a stateless KieSession, no process or whatsoever. I expect the rule to validate basic information and to add information about the fired validations to a global variable. In the example I am testing I just modify a global variable to see if it works, but for some reason I never get a result from the service, which I expect to have at least something.
This is the JAXB request I send:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<batch-execution lookup="kieSessionStateless">
<insert disconnected="false" entry-point="DEFAULT" return-object="false" out-identifier="myorganization.myproject.bom.MyObject">
<object xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="myObject">
<myDescription>description</myDescription>
<myID>0</myID>
</object>
</insert>
<set-global out-identifier="globalList" identifier="globalList">
<object xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="jaxbListWrapper">
<type>LIST</type>
</object>
</set-global>
<get-objects out-identifier="globalList"/>
<fire-all-rules max="-1"/>
</batch-execution>
The rule that is executed is quite simple:
rule "MY FIRST RULE"
when
myorganization.myproject.bom.MyObject( myID == 0 )
then
myorganization.myproject.bom.GlobalResponses globalResponses = new myorganization.myproject.bom.GlobalResponses();
globalResponses.setRuleName("MY FIRST RULE");
globalResponses.setRuleResponse("MY ID IS 0");
globalList.add(globalResponses);
System.out.println("MY ID IS 0");
end
And in the Wildfly console I see the line printed without any additional information (like a stacktrace of an error), so I conclude all is working well:
13:04:36,315 INFO [stdout] (default task-39) MY ID IS 0
But I always get the same response: it indicates that the "process" has terminated correctly (so it seems at first sight) and therefore I am expecting that Result has something (an empty xml response, an xml response with some data in it, ...):
System.out.println("Message: "+response.getMsg());
System.out.println("Result: "+response.getResult());
System.out.println("Type: "+response.getType());
Message: Container KieContainer successfully called.
Result: null
Type: SUCCESS
Response: ServiceResponse[SUCCESS, msg='Container KieContainer successfully called.']
The client is called with KieServicesClient:
KieServicesConfiguration config = KieServicesFactory.
newRestConfiguration(urlKieServer,
name,
password);
config.setMarshallingFormat(MarshallingFormat.JAXB);
KieServicesClient client = KieServicesFactory.newKieServicesClient(config);
JAXBContext jaxbContext = DroolsJaxbHelperProviderImpl.createDroolsJaxbContext(classNames, null);
Marshaller marshaller = jaxbContext.createMarshaller();
StringWriter xml = new StringWriter();
marshaller.setProperty(Marshaller.JAXB_FORMATTED_OUTPUT, true);
marshaller.marshal(command, System.out);
marshaller.marshal(command, xml);
ServiceResponse<String> response = client.executeCommands("instances/"+containerName, xml.toString());
I am missing something but I really do not know what.
All the related projects are on GitHub. Since I cannot post more than two links, I will add the direct links in a comment.
This question is also on: Drools User group
回答1:
I was able to complete the life cycle and send a valid request and obtain a valid answer. Part of my problem was the code used to construct the XML. The best way to construct a valid JAXB request is by using the API provided by KIE, an example can be found here.
Anyway interested in establishing connection to a KIE Server 6.5.0 with a generic client project can consult the code on my GitHub.
来源:https://stackoverflow.com/questions/45504210/serviceresponse-result-is-always-null-jaxb-kie-workbench-kie-server-6-5-0