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<?php |
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/* |
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* This file is part of the ICanBoogie package. |
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* |
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* (c) Olivier Laviale <[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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namespace ICanBoogie\MessageBus\Symfony; |
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use ICanBoogie\MessageBus\HandlerProvider; |
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use ICanBoogie\MessageBus\PSR\ContainerHandlerProvider; |
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use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface; |
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use Symfony\Component\DependencyInjection\Compiler\ServiceLocatorTagPass; |
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use Symfony\Component\DependencyInjection\ContainerBuilder; |
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; |
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use Symfony\Component\DependencyInjection\Exception\LogicException; |
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use Symfony\Component\DependencyInjection\TypedReference; |
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use function is_string; |
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/** |
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* Collect message handlers and register their provider. |
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*/ |
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class HandlerProviderPass implements CompilerPassInterface |
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{ |
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public const DEFAULT_SERVICE_ID = HandlerProvider::class; |
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public const DEFAULT_HANDLER_TAG = 'message_dispatcher.handler'; |
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public const DEFAULT_MESSAGE_PROPERTY = 'message'; |
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public const DEFAULT_PROVIDER_CLASS = ContainerHandlerProvider::class; |
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public function __construct( |
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private string $serviceId = self::DEFAULT_SERVICE_ID, |
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private string $handlerTag = self::DEFAULT_HANDLER_TAG, |
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private string $messageProperty = self::DEFAULT_MESSAGE_PROPERTY, |
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private string $providerClass = self::DEFAULT_PROVIDER_CLASS |
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) { |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function process(ContainerBuilder $container): void |
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{ |
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[ $mapping, $refMap ] = $this->collectHandlers($container); |
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$container |
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->register($this->serviceId, $this->providerClass) |
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->setArguments([ |
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ServiceLocatorTagPass::register($container, $refMap), |
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$mapping |
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]); |
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} |
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/** |
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* @return array{0: array<string, string>, 1: array<string, TypedReference>} |
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*/ |
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private function collectHandlers(ContainerBuilder $container): array |
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{ |
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$handlers = $container->findTaggedServiceIds($this->handlerTag, true); |
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$messageProperty = $this->messageProperty; |
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$mapping = []; |
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$refMap = []; |
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foreach ($handlers as $id => $tags) { |
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assert(is_string($id)); |
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$command = $tags[0][$messageProperty] |
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?? throw new InvalidArgumentException( |
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"The `$messageProperty` property is required for service `$id`." |
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); |
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assert(is_string($command)); |
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if (isset($mapping[$command])) { |
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throw new LogicException( |
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"The command `$command` already has an handler: `{$mapping[$command]}`." |
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); |
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} |
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$class = $container->getDefinition($id)->getClass(); |
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if (!$class) { |
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throw new LogicException("Unable to get class of service `$id`."); |
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} |
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$mapping[$command] = $id; |
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$refMap[$id] = new TypedReference($id, $class); |
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} |
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return [ $mapping, $refMap ]; |
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} |
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} |
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ICanBoogie /
MessageBus
