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<?php |
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/****************************************************************************** |
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* Copyright (c) 2016 Constantin Galbenu <[email protected]> * |
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******************************************************************************/ |
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namespace Gica\Cqrs\Aggregate; |
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use Gica\Cqrs\Event\EventsApplier\EventsApplierOnAggregate; |
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use Gica\Cqrs\Event\EventWithMetaData; |
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use Gica\Cqrs\EventStore; |
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use Gica\Cqrs\EventStore\AggregateEventStream; |
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class AggregateRepository |
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{ |
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/** |
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* @var EventStore |
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*/ |
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private $eventStore; |
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/** |
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* @var EventsApplierOnAggregate |
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*/ |
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private $eventsApplier; |
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/** |
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* @var \SplObjectStorage |
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*/ |
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private $aggregateToEventStreamMap; |
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public function __construct( |
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EventStore $eventStore, |
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EventsApplierOnAggregate $eventsApplier |
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) |
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{ |
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$this->eventStore = $eventStore; |
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$this->eventsApplier = $eventsApplier; |
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$this->aggregateToEventStreamMap = new \SplObjectStorage(); |
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} |
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public function loadAggregate(string $aggregateClass, $aggregateId) |
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{ |
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$aggregate = new $aggregateClass; |
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$priorEvents = $this->eventStore->loadEventsForAggregate($aggregateClass, $aggregateId); |
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$this->aggregateToEventStreamMap[$aggregate] = $priorEvents; |
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/** @var EventWithMetaData[] $priorEvents */ |
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$this->eventsApplier->applyEventsOnAggregate($aggregate, $priorEvents); |
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return $aggregate; |
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} |
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/** |
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* @param $aggregateId |
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* @param $aggregate |
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* @param EventWithMetaData[] $newEventsWithMeta |
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* @return EventWithMetaData[] decorated events with sequence and index |
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*/ |
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public function saveAggregate($aggregateId, $aggregate, $newEventsWithMeta) |
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{ |
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/** @var AggregateEventStream $priorEvents */ |
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$priorEvents = $this->aggregateToEventStreamMap[$aggregate]; |
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$this->eventStore->appendEventsForAggregate( |
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$aggregateId, get_class($aggregate), $newEventsWithMeta, $priorEvents->getVersion(), $priorEvents->getSequence()); |
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$decoratedEvents = []; |
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foreach ($newEventsWithMeta as $index => $eventWithMetaData) { |
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$decoratedEvents[] = $eventWithMetaData->withSequenceAndIndex($priorEvents->getSequence(), $index); |
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} |
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return $decoratedEvents; |
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} |
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} |
xprt64 /
cqrs-es
