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<?php |
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declare(strict_types=1); |
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namespace Blixit\EventSourcing\Store\InMemory; |
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use Blixit\EventSourcing\Event\EventInterface; |
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use Blixit\EventSourcing\Store\Matcher\EventMatcherInterface; |
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use Blixit\EventSourcing\Store\Persistence\EventPersisterInterface; |
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use Blixit\EventSourcing\Stream\StreamName; |
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use function array_filter; |
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use function end; |
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class InMemoryEventPersister implements EventPersisterInterface |
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{ |
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/** @var EventInterface[] $events */ |
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private $events = []; |
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/** |
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* @return EventInterface[] |
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*/ |
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public function getByStream(StreamName $streamName, ?int $fromSequence = 0) : array |
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{ |
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return array_filter($this->events, static function (EventInterface $event) use ( |
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$streamName, |
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$fromSequence |
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) { |
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return $event->getStreamName() === (string) $streamName && $event->getSequence() > $fromSequence; |
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}); |
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} |
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/** |
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* Returns the last event stored into the stream |
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*/ |
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public function getLastEvent(StreamName $streamName) : ?EventInterface |
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{ |
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return empty($this->events) ? null : end($this->events); |
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} |
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public function persist(EventInterface $event) : EventInterface |
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{ |
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$this->events[] = $event; |
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return $event; |
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} |
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/** |
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* @return EventInterface[] |
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*/ |
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public function find(EventMatcherInterface $eventMatcher) : array |
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{ |
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return array_filter($this->events, static function (EventInterface $event) use ($eventMatcher) { |
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$aggregateId = $eventMatcher->getAggregateId(); |
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$aggregateClass = $eventMatcher->getAggregateClass(); |
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$fromSequence = $eventMatcher->getSequence(); |
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$streamName = $eventMatcher->getStreamName(); |
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$timestamp = $eventMatcher->getTimestamp(); |
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$condition = true; |
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if (! empty($aggregateId)) { |
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$condition = $condition && ($event->getAggregateId() === $aggregateId); |
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} |
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if (! empty($aggregateClass)) { |
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$condition = $condition && ($event->getAggregateClass() === (string) $aggregateClass); |
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} |
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if (! empty($fromSequence)) { |
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$condition = $condition && ($event->getSequence() > $fromSequence); |
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} |
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if (! empty($streamName)) { |
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$condition = $condition && ($event->getStreamName() === (string) $streamName); |
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} |
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if (! empty($timestamp)) { |
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$condition = $condition && ($event->getTimestamp() > $timestamp); |
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} |
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return $condition; |
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}); |
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} |
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} |
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blixit /
event-sourcing
