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<?php |
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/* |
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* This file is part of the Shared Kernel library. |
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* |
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* Copyright (c) 2016-present LIN3S <[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 LIN3S\SharedKernel\Infrastructure\Application\Tactician\Middlewares; |
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use League\Tactician\Middleware; |
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use LIN3S\SharedKernel\Domain\Event\CollectInMemoryDomainEventsSubscriber; |
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use LIN3S\SharedKernel\Domain\Event\DomainEventPublisher; |
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use LIN3S\SharedKernel\Domain\Model\DomainEventCollection; |
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use LIN3S\SharedKernel\Event\AggregateId; |
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use LIN3S\SharedKernel\Event\EventStore; |
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use LIN3S\SharedKernel\Event\Stream; |
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use LIN3S\SharedKernel\Event\StreamName; |
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use LIN3S\SharedKernel\Event\StreamVersion; |
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/** |
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* @author Beñat Espiña <[email protected]> |
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*/ |
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class DomainEventsPublicationMiddleware implements Middleware |
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{ |
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private $eventStore; |
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public function __construct(EventStore $eventStore) |
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{ |
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$this->eventStore = $eventStore; |
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} |
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public function execute($command, callable $next) |
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{ |
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$domainEventPublisher = DomainEventPublisher::instance(); |
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$collectDomainEventsSubscriber = new CollectInMemoryDomainEventsSubscriber(); |
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$domainEventPublisher->subscribe($collectDomainEventsSubscriber); |
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$returnValue = $next($command); |
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$eventsPerAggregate = $collectDomainEventsSubscriber->events(); |
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foreach ($eventsPerAggregate as $name => $aggregate) { |
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foreach ($aggregate as $aggregateId => $domainEvents) { |
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$this->eventStore->append( |
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new Stream( |
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new StreamName(AggregateId::generate($aggregateId), $name), |
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$this->streamVersion(), |
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new DomainEventCollection($domainEvents) |
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) |
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); |
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} |
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} |
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return $returnValue; |
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} |
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private function streamVersion() : StreamVersion |
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{ |
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return new StreamVersion(1); // TODO: This value is hardcoded for now. |
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} |
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} |
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LIN3S /
SharedKernel
