private void releaseInstance(Instance instance) {
// Don't pool if the bean has been undeployed
if (instance.beanContext.isDestroyed()) return;
// verify the instance is not associated with a bean-managed transaction
if (instance.getBeanTransaction() != null) {
new IllegalStateException("Instance has an active bean-managed transaction");
}
// no longer in use
instance.setInUse(false);
if (instance.getTransaction() == null) {
// return to cache
cache.checkIn(instance.primaryKey);
// no longer checked out
checkedOutInstances.remove(instance.primaryKey);
}
}
protected Object businessMethod(
BeanContext beanContext,
Object primKey,
Class callInterface,
Method callMethod,
Object[] args,
InterfaceType interfaceType)
throws OpenEJBException {
ThreadContext callContext = new ThreadContext(beanContext, primKey);
ThreadContext oldCallContext = ThreadContext.enter(callContext);
try {
// Security check
checkAuthorization(callMethod, interfaceType);
// Start transaction
TransactionPolicy txPolicy =
createTransactionPolicy(
callContext.getBeanContext().getTransactionType(callMethod, interfaceType),
callContext);
Object returnValue = null;
Instance instance = null;
try {
// Obtain instance
instance = obtainInstance(primKey, callContext);
// Resume previous Bean transaction if there was one
if (txPolicy instanceof BeanTransactionPolicy) {
SuspendedTransaction suspendedTransaction = instance.getBeanTransaction();
if (suspendedTransaction != null) {
instance.setBeanTransaction(null);
BeanTransactionPolicy beanTxEnv = (BeanTransactionPolicy) txPolicy;
beanTxEnv.resumeUserTransaction(suspendedTransaction);
}
}
// Register the entity managers
registerEntityManagers(instance, callContext);
// Register for synchronization callbacks
registerSessionSynchronization(instance, callContext);
// Setup for business invocation
callContext.setCurrentOperation(Operation.BUSINESS);
callContext.setCurrentAllowedStates(null);
callContext.setInvokedInterface(callInterface);
Method runMethod = beanContext.getMatchingBeanMethod(callMethod);
callContext.set(Method.class, runMethod);
// Initialize interceptor stack
List<InterceptorData> interceptors = beanContext.getMethodInterceptors(runMethod);
InterceptorStack interceptorStack =
new InterceptorStack(
instance.bean, runMethod, Operation.BUSINESS, interceptors, instance.interceptors);
// Invoke
returnValue = interceptorStack.invoke(args);
} catch (Throwable e) {
handleException(callContext, txPolicy, e);
} finally {
// Commit transaction
afterInvoke(callContext, txPolicy, instance);
}
return returnValue;
} finally {
ThreadContext.exit(oldCallContext);
}
}
protected Object removeEJBObject(
BeanContext beanContext,
Object primKey,
Class callInterface,
Method callMethod,
Object[] args,
InterfaceType interfaceType)
throws OpenEJBException {
if (primKey == null) throw new NullPointerException("primKey is null");
ThreadContext callContext = new ThreadContext(beanContext, primKey);
ThreadContext oldCallContext = ThreadContext.enter(callContext);
try {
// Security check
checkAuthorization(callMethod, interfaceType);
// If a bean managed transaction is active, the bean can not be removed
if (interfaceType.isComponent()) {
Instance instance = checkedOutInstances.get(primKey);
/**
* According to EJB 3.0 "4.4.4 Restrictions for Transactions" any remove methods from home
* or component interfaces must not be allowed if the bean instance is in a transaction.
* Unfortunately, the Java EE 5 TCK has tests that ignore the restrictions in 4.4.4 and
* expect beans in transactions can be removed via their home or component interface. The
* test to see if the bean instance implements javax.ejb.SessionBean is a workaround for
* passing the TCK while the tests in question can be challenged or the spec can be
* changed/updated.
*/
if (instance != null && instance.bean instanceof javax.ejb.SessionBean) {
throw new ApplicationException(
new RemoveException("A stateful EJB enrolled in a transaction can not be removed"));
}
}
// Start transaction
TransactionPolicy txPolicy =
createTransactionPolicy(
callContext.getBeanContext().getTransactionType(callMethod, interfaceType),
callContext);
Object returnValue = null;
boolean retain = false;
Instance instance = null;
Method runMethod = null;
try {
// Obtain instance
instance = obtainInstance(primKey, callContext);
// Resume previous Bean transaction if there was one
if (txPolicy instanceof BeanTransactionPolicy) {
// Resume previous Bean transaction if there was one
SuspendedTransaction suspendedTransaction = instance.getBeanTransaction();
if (suspendedTransaction != null) {
instance.setBeanTransaction(null);
BeanTransactionPolicy beanTxEnv = (BeanTransactionPolicy) txPolicy;
beanTxEnv.resumeUserTransaction(suspendedTransaction);
}
}
// Register the entity managers
registerEntityManagers(instance, callContext);
// Register for synchronization callbacks
registerSessionSynchronization(instance, callContext);
// Setup for remove invocation
callContext.setCurrentOperation(Operation.REMOVE);
callContext.setCurrentAllowedStates(null);
callContext.setInvokedInterface(callInterface);
runMethod = beanContext.getMatchingBeanMethod(callMethod);
callContext.set(Method.class, runMethod);
// Do not pass arguments on home.remove(remote) calls
Class<?> declaringClass = callMethod.getDeclaringClass();
if (declaringClass.equals(EJBHome.class) || declaringClass.equals(EJBLocalHome.class)) {
args = new Object[] {};
}
// Initialize interceptor stack
List<InterceptorData> interceptors = beanContext.getMethodInterceptors(runMethod);
InterceptorStack interceptorStack =
new InterceptorStack(
instance.bean, runMethod, Operation.REMOVE, interceptors, instance.interceptors);
// Invoke
if (args == null) {
returnValue = interceptorStack.invoke();
} else {
returnValue = interceptorStack.invoke(args);
}
} catch (InvalidateReferenceException e) {
throw e;
} catch (Throwable e) {
if (interfaceType.isBusiness()) {
retain = beanContext.retainIfExeption(runMethod);
handleException(callContext, txPolicy, e);
} else {
try {
handleException(callContext, txPolicy, e);
} catch (ApplicationException ae) {
// Don't throw application exceptions for non-business interface removes
}
}
} finally {
if (!retain) {
try {
callContext.setCurrentOperation(Operation.PRE_DESTROY);
List<InterceptorData> callbackInterceptors = beanContext.getCallbackInterceptors();
InterceptorStack interceptorStack =
new InterceptorStack(
instance.bean,
null,
Operation.PRE_DESTROY,
callbackInterceptors,
instance.interceptors);
interceptorStack.invoke();
} catch (Throwable callbackException) {
String logMessage =
"An unexpected exception occured while invoking the preDestroy method on the removed Stateful SessionBean instance; "
+ callbackException.getClass().getName()
+ " "
+ callbackException.getMessage();
/* [1] Log the exception or error */
logger.error(logMessage);
} finally {
callContext.setCurrentOperation(Operation.REMOVE);
}
// todo destroy extended persistence contexts
discardInstance(callContext);
}
// Commit transaction
afterInvoke(callContext, txPolicy, instance);
}
return returnValue;
} finally {
ThreadContext.exit(oldCallContext);
}
}
