public function attach($instance, $sessionId = null)
{
// load the object manager
$objectManager = $this->getApplication()->search(ObjectManagerInterface::IDENTIFIER);
// load the bean descriptor
$descriptor = $objectManager->getObjectDescriptors()->get(get_class($instance));
// query if we've stateful session bean
if ($descriptor instanceof StatefulSessionBeanDescriptorInterface) {
// check if we've a session-ID available
if ($sessionId == null) {
throw new \Exception('Can\'t find a session-ID to attach stateful session bean');
}
// load the lifetime from the session bean settings
$lifetime = $this->getManagerSettings()->getLifetime();
// we've to check for pre-attach callbacks
foreach ($descriptor->getPreAttachCallbacks() as $preAttachCallback) {
$instance->{$preAttachCallback}();
}
// create a unique SFSB identifier
$identifier = SessionBeanUtil::createIdentifier($sessionId, $descriptor->getClassName());
// load the map with the SFSBs
$sessionBeans = $this->getStatefulSessionBeans();
// add the stateful session bean to the map
$sessionBeans->add($identifier, $instance, $lifetime);
// stop processing here
return;
}
// query if we've stateless session or message bean
if ($descriptor instanceof StatelessSessionBeanDescriptorInterface || $descriptor instanceof MessageDrivenBeanDescriptorInterface) {
// simply destroy the instance
$this->destroyBeanInstance($instance);
// stop processing here
return;
}
// query if we've singleton session bean
if ($descriptor instanceof SingletonSessionBeanDescriptorInterface) {
// we've to check for pre-attach callbacks
foreach ($descriptor->getPreAttachCallbacks() as $preAttachCallback) {
$instance->{$preAttachCallback}();
}
// stop processing here
return;
}
// we've an unknown bean type => throw an exception
throw new InvalidBeanTypeException('Tried to attach invalid bean type');
}
