/**
* This creates and fills a {@link RuntimeEnvironmentBuilder} instance, which is later used when
* creating services. A lot of the logic here is used to process the information in the {@link
* DeploymentDescriptor} instance, which is part of the {@link DeploymentUnit}.
*
* @param deploymentUnit The {@link KModuleDeploymentUnit}, which is filled by the method
* @param deployedUnit The {@link DeployedUnit}, which is also filled by the method
* @param kieContainer The {@link KieContainer}, which contains information needed to fill the
* above two arguments
* @param mode The {@link MergeMode} used to resolve conflicts in the {@link
* DeploymentDescriptor}.
* @return A {@link RuntimeEnvironmentBuilder} instance ready for use
*/
protected RuntimeEnvironmentBuilder boostrapRuntimeEnvironmentBuilder(
KModuleDeploymentUnit deploymentUnit,
DeployedUnit deployedUnit,
KieContainer kieContainer,
MergeMode mode) {
DeploymentDescriptor descriptor = deploymentUnit.getDeploymentDescriptor();
if (descriptor == null
|| ((DeploymentDescriptorImpl) descriptor)
.isEmpty()) { // skip empty descriptors as its default can override settings
DeploymentDescriptorManager descriptorManager =
new DeploymentDescriptorManager("org.jbpm.domain");
List<DeploymentDescriptor> descriptorHierarchy =
descriptorManager.getDeploymentDescriptorHierarchy(kieContainer);
descriptor = merger.merge(descriptorHierarchy, mode);
deploymentUnit.setDeploymentDescriptor(descriptor);
} else if (descriptor != null && !deploymentUnit.isDeployed()) {
DeploymentDescriptorManager descriptorManager =
new DeploymentDescriptorManager("org.jbpm.domain");
List<DeploymentDescriptor> descriptorHierarchy =
descriptorManager.getDeploymentDescriptorHierarchy(kieContainer);
descriptorHierarchy.add(0, descriptor);
descriptor = merger.merge(descriptorHierarchy, mode);
deploymentUnit.setDeploymentDescriptor(descriptor);
}
// first set on unit the strategy
deploymentUnit.setStrategy(descriptor.getRuntimeStrategy());
// setting up runtime environment via builder
RuntimeEnvironmentBuilder builder = null;
if (descriptor.getPersistenceMode() == PersistenceMode.NONE) {
builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultInMemoryBuilder();
} else {
builder = RuntimeEnvironmentBuilder.Factory.get().newDefaultBuilder();
}
// populate various properties of the builder
EntityManagerFactory emf =
EntityManagerFactoryManager.get().getOrCreate(descriptor.getPersistenceUnit());
builder.entityManagerFactory(emf);
Map<String, Object> contaxtParams = new HashMap<String, Object>();
contaxtParams.put("entityManagerFactory", emf);
contaxtParams.put("classLoader", kieContainer.getClassLoader());
// 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);
builder.addEnvironmentEntry("KieContainer", kieContainer);
if (executorService != null) {
builder.addEnvironmentEntry("ExecutorService", executorService);
}
// populate all assets with roles for this deployment unit
List<String> requiredRoles = descriptor.getRequiredRoles(DeploymentDescriptor.TYPE_VIEW);
if (requiredRoles != null && !requiredRoles.isEmpty()) {
for (DeployedAsset desc : deployedUnit.getDeployedAssets()) {
if (desc instanceof ProcessAssetDesc) {
((ProcessAssetDesc) desc).setRoles(requiredRoles);
}
}
}
// Classes 3: classes added from descriptor
List<String> remoteableClasses = descriptor.getClasses();
if (remoteableClasses != null && !remoteableClasses.isEmpty()) {
for (String className : remoteableClasses) {
Class descriptorClass = null;
try {
descriptorClass = kieContainer.getClassLoader().loadClass(className);
logger.debug(
"Loaded {} into the classpath from deployment descriptor {}",
className,
kieContainer.getReleaseId().toExternalForm());
} catch (ClassNotFoundException cnfe) {
throw new IllegalArgumentException("Class " + className + " not found in the project");
} catch (NoClassDefFoundError e) {
throw new IllegalArgumentException("Class " + className + " not found in the project");
}
addClassToDeployedUnit(descriptorClass, (DeployedUnitImpl) deployedUnit);
}
}
return builder;
}
public void onInit() {
EntityManagerFactoryManager.get().addEntityManagerFactory("org.jbpm.domain", getEmf());
}