@Override
public <T> T get(Contextual<T> bean, CreationalContext<T> creationalContext) {
if (creationalContext == null) {
return null;
}
checkActive();
if (passivatingScope) {
if (!(bean instanceof PassivationCapable)) {
throw new IllegalStateException(
bean.toString() + " doesn't implement " + PassivationCapable.class.getName());
}
}
ContextualStorage storage = getContextualStorage(bean, true);
Map<Object, ContextualInstanceInfo<?>> contextMap = storage.getStorage();
ContextualInstanceInfo<?> contextualInstanceInfo = contextMap.get(storage.getBeanKey(bean));
if (contextualInstanceInfo != null) {
@SuppressWarnings("unchecked")
final T instance = (T) contextualInstanceInfo.getContextualInstance();
if (instance != null) {
return instance;
}
}
return storage.createContextualInstance(bean, creationalContext);
}
/**
* Destroys all the Contextual Instances in the specified ContextualStorage. This is a static
* method to allow various holder objects to cleanup properly in @PreDestroy.
*/
public static Map<Object, ContextualInstanceInfo<?>> destroyAllActive(ContextualStorage storage) {
// drop all entries in the storage before starting with destroying the original entries
Map<Object, ContextualInstanceInfo<?>> contextMap =
new HashMap<Object, ContextualInstanceInfo<?>>(storage.getStorage());
storage.getStorage().clear();
for (Map.Entry<Object, ContextualInstanceInfo<?>> entry : contextMap.entrySet()) {
Contextual bean = storage.getBean(entry.getKey());
ContextualInstanceInfo<?> contextualInstanceInfo = entry.getValue();
destroyBean(bean, contextualInstanceInfo);
}
return contextMap;
}
@Override
public <T> T get(Contextual<T> bean) {
checkActive();
ContextualStorage storage = getContextualStorage(bean, false);
if (storage == null) {
return null;
}
Map<Object, ContextualInstanceInfo<?>> contextMap = storage.getStorage();
ContextualInstanceInfo<?> contextualInstanceInfo = contextMap.get(storage.getBeanKey(bean));
if (contextualInstanceInfo == null) {
return null;
}
return (T) contextualInstanceInfo.getContextualInstance();
}
/**
* Destroy the Contextual Instance of the given Bean.
*
* @param bean dictates which bean shall get cleaned up
* @return <code>true</code> if the bean was destroyed, <code>false</code> if there was no such
* bean.
*/
public boolean destroy(Contextual bean) {
ContextualStorage storage = getContextualStorage(bean, false);
if (storage == null) {
return false;
}
ContextualInstanceInfo<?> contextualInstanceInfo =
storage.getStorage().remove(storage.getBeanKey(bean));
if (contextualInstanceInfo == null) {
return false;
}
destroyBean(bean, contextualInstanceInfo);
return true;
}