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<?php |
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/** |
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* This file is part of the Cubiche package. |
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* |
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* Copyright (c) Cubiche |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Cubiche\Domain\EventSourcing; |
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use Cubiche\Domain\EventPublisher\DomainEventPublisher; |
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use Cubiche\Domain\EventSourcing\Event\PostPersistEvent; |
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use Cubiche\Domain\EventSourcing\Event\PostRemoveEvent; |
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use Cubiche\Domain\EventSourcing\Event\PrePersistEvent; |
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use Cubiche\Domain\EventSourcing\Event\PreRemoveEvent; |
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use Cubiche\Domain\EventSourcing\EventStore\EventStoreInterface; |
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use Cubiche\Domain\EventSourcing\EventStore\EventStream; |
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use Cubiche\Domain\EventSourcing\Utils\NameResolver; |
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use Cubiche\Domain\Model\IdInterface; |
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use Cubiche\Domain\Repository\RepositoryInterface; |
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/** |
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* AggregateRepository class. |
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* |
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* @author Ivannis Suárez Jerez <[email protected]> |
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*/ |
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class AggregateRepository implements RepositoryInterface |
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{ |
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/** |
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* @var EventStoreInterface |
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*/ |
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protected $eventStore; |
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/** |
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* @var string |
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*/ |
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protected $aggregateClassName; |
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/** |
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* AggregateRepository constructor. |
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* |
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* @param EventStoreInterface $eventStore |
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* @param string $aggregateClassName |
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*/ |
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public function __construct(EventStoreInterface $eventStore, $aggregateClassName) |
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{ |
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$this->eventStore = $eventStore; |
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$this->aggregateClassName = $aggregateClassName; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get(IdInterface $id) |
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{ |
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$eventStream = $this->loadHistory($id); |
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if ($eventStream !== null) { |
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return call_user_func( |
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array($this->aggregateClassName, 'loadFromHistory'), |
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$eventStream |
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); |
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} |
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return; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function persist($element) |
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{ |
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View Code Duplication |
if (!$element instanceof EventSourcedAggregateRootInterface) { |
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throw new \InvalidArgumentException(sprintf( |
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'The object must be an instance of %s. Instance of %s given', |
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EventSourcedAggregateRootInterface::class, |
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is_object($element) ? get_class($element) : gettype($element) |
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)); |
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} |
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$this->saveHistory($element); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function persistAll($elements) |
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{ |
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foreach ($elements as $element) { |
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$this->persist($element); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function remove($element) |
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{ |
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View Code Duplication |
if (!$element instanceof EventSourcedAggregateRootInterface) { |
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throw new \InvalidArgumentException(sprintf( |
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'The object must be an instance of %s. Instance of %s given', |
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EventSourcedAggregateRootInterface::class, |
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is_object($element) ? get_class($element) : gettype($element) |
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)); |
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} |
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DomainEventPublisher::publish(new PreRemoveEvent($element)); |
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// remove the event stream |
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$this->eventStore->remove($this->streamName($element->id())); |
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DomainEventPublisher::publish(new PostRemoveEvent($element)); |
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} |
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/** |
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* Load a aggregate history from the storage. |
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* |
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* @param IdInterface $id |
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* |
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* @return EventStream|null |
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*/ |
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protected function loadHistory(IdInterface $id) |
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{ |
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return $this->eventStore->load($this->streamName($id)); |
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} |
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/** |
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* Save the aggregate history. |
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* |
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* @param EventSourcedAggregateRootInterface $aggregateRoot |
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*/ |
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protected function saveHistory(EventSourcedAggregateRootInterface $aggregateRoot) |
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{ |
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$recordedEvents = $aggregateRoot->recordedEvents(); |
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if (count($recordedEvents) > 0) { |
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DomainEventPublisher::publish(new PrePersistEvent($aggregateRoot)); |
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// clear events |
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$aggregateRoot->clearEvents(); |
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// create the eventStream and persist it |
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$eventStream = new EventStream( |
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$this->streamName($aggregateRoot->id()), |
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$aggregateRoot->id(), |
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$recordedEvents |
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); |
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$this->eventStore->persist($eventStream); |
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DomainEventPublisher::publish(new PostPersistEvent($aggregateRoot, $eventStream)); |
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} |
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} |
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/** |
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* @param IdInterface $id |
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* |
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* @return string |
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*/ |
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protected function streamName(IdInterface $id) |
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{ |
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return NameResolver::resolve($this->aggregateClassName, $id); |
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} |
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} |
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cubiche /
event-sourcing
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.