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<?php namespace SmoothPhp\EventSourcing; |
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use SmoothPhp\Contracts\EventSourcing\Event; |
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use SmoothPhp\Contracts\EventSourcing\AggregateRoot as AggregateRootContract; |
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/** |
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* Abstract class Entity |
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* |
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* @author jrdn hannah <[email protected]> |
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*/ |
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abstract class Entity implements \SmoothPhp\Contracts\EventSourcing\Entity |
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{ |
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/** @var AggregateRootContract */ |
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private $aggregateRoot; |
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/** @var \SmoothPhp\Contracts\EventSourcing\Entity[] */ |
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private $children = []; |
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/** |
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* @param Event $event |
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* @throws Exception\AggregateRootAlreadyRegistered |
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*/ |
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public function handleRecursively(Event $event) |
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{ |
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$this->handle($event); |
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foreach ($this->children as $entity) { |
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$entity->registerAggregateRoot($this->aggregateRoot); |
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$entity->handleRecursively($event); |
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} |
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} |
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/** |
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* @param AggregateRootContract $aggregateRoot |
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* @throws Exception\AggregateRootAlreadyRegistered |
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*/ |
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public function registerAggregateRoot(AggregateRootContract $aggregateRoot) |
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{ |
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if (null !== $this->aggregateRoot && $this->aggregateRoot !== $aggregateRoot) { |
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throw new Exception\AggregateRootAlreadyRegistered; |
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} |
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$this->aggregateRoot = $aggregateRoot; |
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} |
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/** |
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* @param \SmoothPhp\Contracts\EventSourcing\Entity $entity |
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*/ |
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public function addChildEntity(\SmoothPhp\Contracts\EventSourcing\Entity $entity) |
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{ |
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$this->children[] = $entity; |
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} |
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/** |
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* @param Event $event |
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* @throws Exception\NoAggregateRootRegistered |
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*/ |
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protected function apply(Event $event) |
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{ |
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if (!$this->aggregateRoot) { |
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throw new Exception\NoAggregateRootRegistered; |
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} |
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$this->aggregateRoot->apply($event); |
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} |
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/** |
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* Handles event if capable. |
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* |
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* @param $event |
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*/ |
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6 |
View Code Duplication |
protected function handle(Event $event) |
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{ |
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$method = $this->getApplyMethod($event); |
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if (!method_exists($this, $method)) { |
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return; |
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} |
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$this->$method($event); |
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} |
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/** |
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* @param Event $event |
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* @return string |
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*/ |
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private function getApplyMethod(Event $event) |
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{ |
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$classParts = explode('\\', get_class($event)); |
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return 'apply' . end($classParts); |
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} |
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} |
SmoothPhp /
CQRS-ES-Framework
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.