Deploy process in runtime

[mando87]

Hi!

I'm using the jBPM engine (v6.1) embedded in my java server. The documentation only explain how to deploy processes in the application startup, is it possible deploy process in runtime? After create the RuntimeManager?

Thanks and Regards,

Armando Rodrigues

[jayzay212]

Hey!

I'm running jBPM 6.2 snapshot in an osgi environment and i also would like to know if it's possible to deploy processes in runtime. Hopefully without re-initiating the RuntimeManager.

Regards,

Sebastian Ganser

[mando87]

I found a solution using reflection. We create the RuntimeEnvironmentBuilder, use reflection to get the KnowledgeBuilderImpl and use this object to build and get the Process. After that use the knowledgeBase to deploy de process in runtime.

RuntimeEnvironmentBuilder builder;
builder = RuntimeEnvironmentBuilder.Factory.get()
                .newDefaultBuilder()
                .entityManagerFactory(emf)
                .userGroupCallback(new ScaUserGroupCallbackImpl());//my implementation of UserGroupCallback

//create RuntimeEngine with builder
...

//use reflection to get the kbuilder(KnowledgeBuilderImpl)
Field f = null;
        SimpleRuntimeEnvironment simpleRuntimeEnvironment = (SimpleRuntimeEnvironment) builder.get();
        try {
            f = SimpleRuntimeEnvironment.class.getDeclaredField("kbuilder");
            f.setAccessible(true);
            kbuilder = (KnowledgeBuilderImpl) f.get(simpleRuntimeEnvironment);
        } catch (NoSuchFieldException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        }

//to deploy in runtime:
KnowledgeBaseImpl knowledgeBase = (KnowledgeBaseImpl) ksession.getKieBase();
Resource processResource = ResourceFactory.newClassPathResource("test2.bpmn2");
builder.addAsset(resource, ResourceType.BPMN2);
Process process = kbuilder.newKnowledgeBase().getProcess("test2");
knowledgeBase.addProcess(process);