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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\Redis\EventStore; |
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use Kreta\SharedKernel\Domain\Model\AggregateDoesNotExistException; |
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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\StoredEvent; |
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use Kreta\SharedKernel\Event\Stream; |
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use Kreta\SharedKernel\Event\StreamName; |
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use Kreta\SharedKernel\Serialization\Serializer; |
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use Predis\Client; |
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final class RedisEventStore implements EventStore |
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{ |
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private $predis; |
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private $serializer; |
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public function __construct(Client $predis, Serializer $serializer) |
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{ |
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$this->predis = $predis; |
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$this->serializer = $serializer; |
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} |
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public function append(Stream $stream) : void |
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{ |
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$order = $this->countStoredEventsOfStream($stream) + 1; |
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foreach ($stream->events() as $event) { |
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$event = new StoredEvent( |
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$order, |
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$stream->name(), |
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$event |
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); |
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$this->predis->rpush( |
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$stream->name()->name(), |
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$this->serializer->serialize($event) |
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); |
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} |
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} |
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public function streamOfName(StreamName $name) : Stream |
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{ |
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if (!$this->predis->exists($name->name())) { |
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throw new AggregateDoesNotExistException($name->aggregateId()->id()); |
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} |
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$serializedEvents = $this->predis->lrange($name->name(), 0, -1); |
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$events = new DomainEventCollection(); |
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foreach ($serializedEvents as $serializedEvent) { |
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$events->add( |
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$this->serializer->deserialize($serializedEvent) |
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); |
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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 = null === $since ? 0 : $since->getTimestamp(); |
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$keys = $this->predis->keys('*'); |
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$events = array_filter(call_user_func_array('array_merge', array_map(function ($key) use ($since) { |
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return array_map(function (string $serializedEvent) { |
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return json_decode($serializedEvent, true); |
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}, $this->predis->lrange($key, 0, -1)); |
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}, $keys)), function (array $event) use ($since) { |
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return $event['occurred_on'] >= $since; |
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}); |
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return array_slice($events, $offset, $limit); |
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} |
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private function countStoredEventsOfStream(Stream $stream) : int |
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{ |
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return count($this->predis->lrange($stream->name()->name(), 0, -1)); |
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} |
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} |
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kreta /
Kreta
