private Instance createInstance(ThreadContext callContext, BeanContext beanContext)
throws ApplicationException {
try {
initializeDependencies(beanContext);
final InstanceContext context = beanContext.newInstance();
if (context.getBean() instanceof SessionBean) {
final Operation originalOperation = callContext.getCurrentOperation();
try {
callContext.setCurrentOperation(Operation.CREATE);
final Method create = beanContext.getCreateMethod();
final InterceptorStack ejbCreate =
new InterceptorStack(
context.getBean(),
create,
Operation.CREATE,
new ArrayList<InterceptorData>(),
new HashMap());
ejbCreate.invoke();
} finally {
callContext.setCurrentOperation(originalOperation);
}
}
ReadWriteLock lock;
if (beanContext.isBeanManagedConcurrency()) {
// Bean-Managed Concurrency
lock = new BeanManagedLock();
} else {
// Container-Managed Concurrency
lock = new ReentrantReadWriteLock();
}
return new Instance(
context.getBean(), context.getInterceptors(), context.getCreationalContext(), lock);
} catch (Throwable e) {
if (e instanceof java.lang.reflect.InvocationTargetException) {
e = ((java.lang.reflect.InvocationTargetException) e).getTargetException();
}
String t =
"The bean instance " + beanContext.getDeploymentID() + " threw a system exception:" + e;
logger.error(t, e);
throw new ApplicationException(
new NoSuchEJBException("Singleton failed to initialize").initCause(e));
}
}
public void freeInstance(ThreadContext callContext) {
BeanContext beanContext = callContext.getBeanContext();
Data data = (Data) beanContext.getContainerData();
Future<Instance> instanceFuture = data.singleton.get();
// Possible the instance was never created
if (instanceFuture == null) return;
Instance instance;
try {
instance = instanceFuture.get();
} catch (InterruptedException e) {
Thread.interrupted();
logger.error(
"Singleton shutdown failed because the thread was interrupted: "
+ beanContext.getDeploymentID(),
e);
return;
} catch (ExecutionException e) {
// Instance was never initialized
return;
}
try {
callContext.setCurrentOperation(Operation.PRE_DESTROY);
callContext.setCurrentAllowedStates(null);
Method remove = instance.bean instanceof SessionBean ? beanContext.getCreateMethod() : null;
List<InterceptorData> callbackInterceptors = beanContext.getCallbackInterceptors();
InterceptorStack interceptorStack =
new InterceptorStack(
instance.bean,
remove,
Operation.PRE_DESTROY,
callbackInterceptors,
instance.interceptors);
// Transaction Demarcation for Singleton PostConstruct method
TransactionType transactionType;
if (beanContext.getComponentType() == BeanType.SINGLETON) {
Set<Method> callbacks =
callbackInterceptors.get(callbackInterceptors.size() - 1).getPreDestroy();
if (callbacks.isEmpty()) {
transactionType = TransactionType.RequiresNew;
} else {
transactionType = beanContext.getTransactionType(callbacks.iterator().next());
if (transactionType == TransactionType.Required) {
transactionType = TransactionType.RequiresNew;
}
}
} else {
transactionType =
beanContext.isBeanManagedTransaction()
? TransactionType.BeanManaged
: TransactionType.NotSupported;
}
TransactionPolicy transactionPolicy =
EjbTransactionUtil.createTransactionPolicy(transactionType, callContext);
try {
// Call the chain
interceptorStack.invoke();
if (instance.creationalContext != null) {
instance.creationalContext.release();
}
} catch (Throwable e) {
// RollBack Transaction
EjbTransactionUtil.handleSystemException(transactionPolicy, e, callContext);
} finally {
EjbTransactionUtil.afterInvoke(transactionPolicy, callContext);
}
} catch (Throwable re) {
logger.error("Singleton shutdown failed: " + beanContext.getDeploymentID(), re);
}
}