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<?php |
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/* |
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* This file is part of the Kreta package. |
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* |
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* (c) Beñat Espiña <[email protected]> |
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* (c) Gorka Laucirica <[email protected]> |
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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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declare(strict_types=1); |
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namespace Kreta\SharedKernel\Infrastructure\Persistence\InMemory\EventStore; |
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use Kreta\SharedKernel\Domain\Model\AggregateDoesNotExistException; |
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use Kreta\SharedKernel\Domain\Model\DomainEvent; |
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use Kreta\SharedKernel\Domain\Model\DomainEventCollection; |
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use Kreta\SharedKernel\Event\EventStore; |
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use Kreta\SharedKernel\Event\Stream; |
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use Kreta\SharedKernel\Event\StreamName; |
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class InMemoryEventStore implements EventStore |
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{ |
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private $store; |
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public function __construct() |
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{ |
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$this->store = []; |
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} |
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public function append(Stream $stream) : void |
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{ |
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foreach ($stream->events() as $event) { |
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$content = []; |
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$eventReflection = new \ReflectionClass($event); |
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foreach ($eventReflection->getProperties() as $property) { |
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$property->setAccessible(true); |
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$content[$property->getName()] = $property->getValue($event); |
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} |
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$this->store[] = [ |
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'stream_name' => $stream->name()->name(), |
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'type' => get_class($event), |
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'content' => json_encode($content), |
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]; |
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} |
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} |
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public function streamOfName(StreamName $name) : Stream |
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{ |
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$events = new DomainEventCollection(); |
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foreach ($this->store as $event) { |
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if ($event['stream_name'] === $name->name()) { |
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$events->add($this->buildEvent($event)); |
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} |
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} |
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if (0 === $events->count()) { |
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throw new AggregateDoesNotExistException($name->aggregateId()->id()); |
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} |
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return new Stream($name, $events); |
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} |
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public function eventsSince(?\DateTimeInterface $since, int $offset = 0, int $limit = -1) : array |
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{ |
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$since = $since instanceof \DateTimeInterface ? $since->getTimestamp() : 0; |
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$events = array_map(function (array $event) use ($since) { |
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$domainEvent = $this->buildEvent($event); |
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if ($domainEvent->occurredOn()->getTimestamp() >= $since) { |
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$evenContent = json_decode($event['content'], true); |
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$evenContent['occurredOn'] = $domainEvent->occurredOn()->getTimestamp(); |
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return [ |
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'stream_name' => $event['stream_name'], |
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'type' => $event['type'], |
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'content' => $evenContent, |
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]; |
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} |
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}, $this->store); |
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return array_slice($events, $offset); |
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} |
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private function buildEvent(array $event) : DomainEvent |
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{ |
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$eventData = json_decode($event['content']); |
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$eventReflection = new \ReflectionClass($event['type']); |
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$parameters = $eventReflection->getConstructor()->getParameters(); |
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$arguments = []; |
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foreach ($parameters as $parameter) { |
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foreach ($eventData as $key => $data) { |
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if ($key === $parameter->getName()) { |
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$arguments[] = $data; |
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} |
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} |
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} |
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return new $event['type'](...$arguments); |
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} |
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} |
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