Examples with DeploymentDescriptorMerger org.jbpm.runtime.manager.impl.deploy.DeploymentDescriptorMerger used on opensource projects

Example 1 with DeploymentDescriptorMerger

use of org.jbpm.runtime.manager.impl.deploy.DeploymentDescriptorMerger in project jbpm by kiegroup.

the class RuntimeEnvironmentBuilder method getDefault.

/**
 * Provides default configuration of <code>RuntimeEnvironmentBuilder</code> that is based on:
 * <ul>
 * 	<li>DefaultRuntimeEnvironment</li>
 * </ul>
 * This one is tailored to works smoothly with kjars as the notion of kbase and ksessions
 * @param releaseId <code>ReleaseId</code> that described the kjar
 * @param kbaseName name of the kbase defined in kmodule.xml stored in kjar
 * @param ksessionName name of the ksession define in kmodule.xml stored in kjar
 * @return new instance of <code>RuntimeEnvironmentBuilder</code> that is already preconfigured with defaults
 *
 * @see DefaultRuntimeEnvironment
 */
public static RuntimeEnvironmentBuilder getDefault(ReleaseId releaseId, String kbaseName, String ksessionName) {
    KieMavenRepository repository = KieMavenRepository.getKieMavenRepository();
    repository.resolveArtifact(releaseId.toExternalForm());
    KieServices ks = KieServices.Factory.get();
    KieContainer kieContainer = ks.newKieContainer(releaseId);
    DeploymentDescriptorManager descriptorManager = new DeploymentDescriptorManager();
    List<DeploymentDescriptor> descriptorHierarchy = descriptorManager.getDeploymentDescriptorHierarchy(kieContainer);
    DeploymentDescriptorMerger merger = new DeploymentDescriptorMerger();
    DeploymentDescriptor descriptor = merger.merge(descriptorHierarchy, MergeMode.MERGE_COLLECTIONS);
    if (StringUtils.isEmpty(kbaseName)) {
        KieBaseModel defaultKBaseModel = ((KieContainerImpl) kieContainer).getKieProject().getDefaultKieBaseModel();
        if (defaultKBaseModel != null) {
            kbaseName = defaultKBaseModel.getName();
        } else {
            kbaseName = DEFAULT_KBASE_NAME;
        }
    }
    InternalKieModule module = (InternalKieModule) ((KieContainerImpl) kieContainer).getKieModuleForKBase(kbaseName);
    if (module == null) {
        throw new IllegalStateException("Cannot find kbase, either it does not exist or there are multiple default kbases in kmodule.xml");
    }
    KieBase kbase = kieContainer.getKieBase(kbaseName);
    RuntimeEnvironmentBuilder builder = null;
    if (descriptor.getPersistenceMode() == PersistenceMode.NONE) {
        builder = getDefaultInMemory();
    } else {
        builder = getDefault();
    }
    Map<String, Object> contaxtParams = new HashMap<String, Object>();
    contaxtParams.put("classLoader", kieContainer.getClassLoader());
    // populate various properties of the builder
    if (descriptor.getPersistenceUnit() != null) {
        EntityManagerFactory emf = EntityManagerFactoryManager.get().getOrCreate(descriptor.getPersistenceUnit());
        builder.entityManagerFactory(emf);
        contaxtParams.put("entityManagerFactory", emf);
    }
    // process object models that are globally configured (environment entries, session configuration)
    for (NamedObjectModel model : descriptor.getEnvironmentEntries()) {
        Object entry = getInstanceFromModel(model, kieContainer, contaxtParams);
        builder.addEnvironmentEntry(model.getName(), entry);
    }
    for (NamedObjectModel model : descriptor.getConfiguration()) {
        Object entry = getInstanceFromModel(model, kieContainer, contaxtParams);
        builder.addConfiguration(model.getName(), (String) entry);
    }
    ObjectMarshallingStrategy[] mStrategies = new ObjectMarshallingStrategy[descriptor.getMarshallingStrategies().size() + 1];
    int index = 0;
    for (ObjectModel model : descriptor.getMarshallingStrategies()) {
        Object strategy = getInstanceFromModel(model, kieContainer, contaxtParams);
        mStrategies[index] = (ObjectMarshallingStrategy) strategy;
        index++;
    }
    // lastly add the main default strategy
    mStrategies[index] = new SerializablePlaceholderResolverStrategy(ClassObjectMarshallingStrategyAcceptor.DEFAULT);
    builder.addEnvironmentEntry(EnvironmentName.OBJECT_MARSHALLING_STRATEGIES, mStrategies);
    builder.addEnvironmentEntry("KieDeploymentDescriptor", descriptor).knowledgeBase(kbase).classLoader(kieContainer.getClassLoader()).registerableItemsFactory(new KModuleRegisterableItemsFactory(kieContainer, ksessionName));
    return builder;
}