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<?php
/*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Event;
use Doctrine\Common\EventArgs;
use Doctrine\ORM\EntityManagerInterface;
use Doctrine\ORM\Mapping\ClassMetadata;
/**
* A method invoker based on entity lifecycle.
*
* @author Fabio B. Silva <fabio.bat.silva@gmail.com>
* @since 2.4
*/
class ListenersInvoker
{
const INVOKE_NONE = 0;
const INVOKE_LISTENERS = 1;
const INVOKE_CALLBACKS = 2;
const INVOKE_MANAGER = 4;
/**
* @var \Doctrine\ORM\Mapping\EntityListenerResolver The Entity listener resolver.
*/
private $resolver;
/**
* The EventManager used for dispatching events.
*
* @var \Doctrine\Common\EventManager
*/
private $eventManager;
/**
* Initializes a new ListenersInvoker instance.
*
* @param EntityManagerInterface $em
*/
public function __construct(EntityManagerInterface $em)
{
$this->eventManager = $em->getEventManager();
$this->resolver = $em->getConfiguration()->getEntityListenerResolver();
}
/**
* Get the subscribed event systems
*
* @param \Doctrine\ORM\Mapping\ClassMetadata $metadata The entity metadata.
* @param string $eventName The entity lifecycle event.
*
* @return integer Bitmask of subscribed event systems.
*/
public function getSubscribedSystems(ClassMetadata $metadata, $eventName)
{
$invoke = self::INVOKE_NONE;
if (isset($metadata->lifecycleCallbacks[$eventName])) {
$invoke |= self::INVOKE_CALLBACKS;
}
if (isset($metadata->entityListeners[$eventName])) {
$invoke |= self::INVOKE_LISTENERS;
}
if ($this->eventManager->hasListeners($eventName)) {
$invoke |= self::INVOKE_MANAGER;
}
return $invoke;
}
/**
* Dispatches the lifecycle event of the given entity.
*
* @param \Doctrine\ORM\Mapping\ClassMetadata $metadata The entity metadata.
* @param string $eventName The entity lifecycle event.
* @param object $entity The Entity on which the event occurred.
* @param \Doctrine\Common\EventArgs $event The Event args.
* @param integer $invoke Bitmask to invoke listeners.
*/
public function invoke(ClassMetadata $metadata, $eventName, $entity, EventArgs $event, $invoke)
{
if ($invoke & self::INVOKE_CALLBACKS) {
foreach ($metadata->lifecycleCallbacks[$eventName] as $callback) {
$entity->$callback($event);
}
}
if ($invoke & self::INVOKE_LISTENERS) {
foreach ($metadata->entityListeners[$eventName] as $listener) {
$class = $listener['class'];
$method = $listener['method'];
$instance = $this->resolver->resolve($class);
$instance->$method($entity, $event);
}
}
if ($invoke & self::INVOKE_MANAGER) {
$this->eventManager->dispatchEvent($eventName, $event);
}
}
}
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