public synchronized void setKieContainer(KieContainer kieContainer) {
if (this.kieContainer != null) {
throw new RuntimeException("Cannot change KieContainer on an already initialized KieScanner");
}
this.kieContainer = (InternalKieContainer) kieContainer;
ReleaseId containerReleaseId = this.kieContainer.getContainerReleaseId();
if (containerReleaseId == null) {
throw new RuntimeException(
"The KieContainer's ReleaseId cannot be null. Are you using a KieClasspathContainer?");
}
artifactResolver = getResolverFor(kieContainer.getReleaseId(), true);
if (!isFixedVersion(containerReleaseId.getVersion())) {
usedDependencies.put(
containerReleaseId,
new DependencyDescriptor(
this.kieContainer.getReleaseId(), this.kieContainer.getCreationTimestamp()));
}
indexAtifacts();
KieScannersRegistry.register(this);
status = Status.STOPPED;
if (MBeanUtils.isMBeanEnabled()) {
mbean = new KieScannerMBeanImpl(this);
}
}
/**
* 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;
}
@Override
public void deploy(DeploymentUnit unit) {
try {
super.deploy(unit);
if (!(unit instanceof KModuleDeploymentUnit)) {
throw new IllegalArgumentException(
"Invalid deployment unit provided - " + unit.getClass().getName());
}
KModuleDeploymentUnit kmoduleUnit = (KModuleDeploymentUnit) unit;
DeployedUnitImpl deployedUnit = new DeployedUnitImpl(unit);
// Create the release id
KieContainer kieContainer = kmoduleUnit.getKieContainer();
ReleaseId releaseId = null;
if (kieContainer == null) {
KieServices ks = KieServices.Factory.get();
releaseId =
ks.newReleaseId(
kmoduleUnit.getGroupId(), kmoduleUnit.getArtifactId(), kmoduleUnit.getVersion());
MavenRepository repository = getMavenRepository();
repository.resolveArtifact(releaseId.toExternalForm());
kieContainer = ks.newKieContainer(releaseId);
kmoduleUnit.setKieContainer(kieContainer);
}
releaseId = kieContainer.getReleaseId();
// retrieve the kbase name
String kbaseName = kmoduleUnit.getKbaseName();
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);
Map<String, ProcessDescriptor> processDescriptors = new HashMap<String, ProcessDescriptor>();
for (org.kie.api.definition.process.Process process : kbase.getProcesses()) {
processDescriptors.put(
process.getId(), (ProcessDescriptor) process.getMetaData().get("ProcessDescriptor"));
}
// TODO: add forms data?
Collection<String> files = module.getFileNames();
processResources(
module, files, kieContainer, kmoduleUnit, deployedUnit, releaseId, processDescriptors);
// process the files in the deployment
if (module.getKieDependencies() != null) {
Collection<InternalKieModule> dependencies = module.getKieDependencies().values();
for (InternalKieModule depModule : dependencies) {
logger.debug("Processing dependency module " + depModule.getReleaseId());
files = depModule.getFileNames();
processResources(
depModule,
files,
kieContainer,
kmoduleUnit,
deployedUnit,
depModule.getReleaseId(),
processDescriptors);
}
}
Collection<ReleaseId> dependencies =
module.getJarDependencies(new DependencyFilter.ExcludeScopeFilter("test", "provided"));
// process deployment dependencies
if (dependencies != null && !dependencies.isEmpty()) {
// Classes 2: classes added from project and dependencies added
processClassloader(kieContainer, deployedUnit);
}
AuditEventBuilder auditLoggerBuilder =
setupAuditLogger(identityProvider, unit.getIdentifier());
RuntimeEnvironmentBuilder builder =
boostrapRuntimeEnvironmentBuilder(
kmoduleUnit, deployedUnit, kieContainer, kmoduleUnit.getMergeMode())
.knowledgeBase(kbase)
.classLoader(kieContainer.getClassLoader());
builder.registerableItemsFactory(
getRegisterableItemsFactory(auditLoggerBuilder, kieContainer, kmoduleUnit));
commonDeploy(unit, deployedUnit, builder.get(), kieContainer);
kmoduleUnit.setDeployed(true);
} catch (Throwable e) {
logger.warn("Unexpected error while deploying unit {}", unit.getIdentifier(), e);
// catch all possible errors to be able to report them to caller as RuntimeException
throw new RuntimeException(e);
}
}
