[rules-users] Multiple threads for KieBuilder

[RichardAmbridge]

Hi,

  We have over 20000 rules in our drools implementation. In drools 5 we
could build multiple packages in different threads and then create a
Knowledge base joining all those packages together.
e.g.
Thread:
        knowledgeB = KnowledgeBuilderFactory.newKnowledgeBuilder();
        knowledgeB.add(ResourceFactory.newReaderResource(new
StringReader(sb.toString())), ResourceType.DRL);

Then in the main compiler, once all threads have finished
            KnowledgeBase knowledgeBase =
KnowledgeBaseFactory.newKnowledgeBase(conf);
            for each thread:
               
knowledgeBase.addKnowledgePackages(thrds[t].getKnowledgeB().getKnowledgePackages());


I can't seem to find anyway to do that with the new KIE implementation.

What I would like to do is something like:

Thread:
        Create sb to have lots of rules
        KieServices kieServices = KieServices.Factory.get();

        KieFileSystem kfs = kieServices.newKieFileSystem();
        kfs.write("src/main/resources/rules.drl", sb.toString());

        KieBuilder kieBuilder = kieServices.newKieBuilder(kfs);
        kieBuilder.buildAll();
..check errors
        KieContainer kieContainer =
kieServices.newKieContainer(kieBuilder.getKieModule().getReleaseId());
        KieBase kieBase = kieContainer.newKieBase(kieBaseConfiguration);

In main compiling, create multiple threads, each with its own rule set.

Then when all threads completed, take all the kieBase objects and merge into
one base.
then KieSession ksession=mergedKieBase.newKieSession();

We compile our rules offline and then load into our running servers. The
compile server is a multicore server, but buildAll is single threaded.

Is this possible?

Many thanks for the support,
Ric


        



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