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<?php declare(strict_types=1); |
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/** |
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* This file is part of the daikon-cqrs/event-sourcing project. |
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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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namespace Daikon\EventSourcing\Aggregate\Command; |
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use Daikon\EventSourcing\Aggregate\AggregateIdInterface; |
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use Daikon\EventSourcing\Aggregate\AggregateRevision; |
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use Daikon\EventSourcing\Aggregate\AggregateRootInterface; |
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use Daikon\EventSourcing\EventStore\UnitOfWorkInterface; |
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use Daikon\Interop\RuntimeException; |
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use Daikon\MessageBus\Channel\Subscription\MessageHandler\MessageHandlerInterface; |
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use Daikon\MessageBus\EnvelopeInterface; |
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use Daikon\MessageBus\MessageBusInterface; |
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use Daikon\Metadata\MetadataInterface; |
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use ReflectionClass; |
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abstract class CommandHandler implements MessageHandlerInterface |
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{ |
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private const COMMITS_CHANNEL = 'commits'; |
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private MessageBusInterface $messageBus; |
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private UnitOfWorkInterface $unitOfWork; |
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public function __construct(UnitOfWorkInterface $unitOfWork, MessageBusInterface $messageBus) |
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{ |
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$this->messageBus = $messageBus; |
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$this->unitOfWork = $unitOfWork; |
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} |
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public function handle(EnvelopeInterface $envelope): void |
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{ |
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$commandMessage = $envelope->getMessage(); |
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$handlerName = (new ReflectionClass($commandMessage))->getShortName(); |
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$handlerMethod = 'handle'.ucfirst($handlerName); |
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$handler = [$this, $handlerMethod]; |
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if (!is_callable($handler)) { |
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throw new RuntimeException( |
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sprintf("Handler '%s' is not callable on '%s'.", $handlerMethod, static::class) |
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); |
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} |
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$this->commit(...$handler($commandMessage, $envelope->getMetadata())); |
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} |
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protected function commit(AggregateRootInterface $aggregateRoot, MetadataInterface $metadata): void |
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{ |
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$newCommits = $this->unitOfWork->commit($aggregateRoot, $metadata); |
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foreach ($newCommits as $newCommit) { |
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$this->messageBus->publish($newCommit, self::COMMITS_CHANNEL, $metadata); |
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} |
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} |
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protected function checkout( |
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AggregateIdInterface $aggregateId, |
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AggregateRevision $knownAggregateRevision |
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): AggregateRootInterface { |
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return $this->unitOfWork->checkout($aggregateId, $knownAggregateRevision); |
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} |
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} |
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daikon-cqrs /
event-sourcing
This check compares calls to functions or methods with their respective definitions. If the call has less arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.