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<?php |
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declare(strict_types=1); |
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namespace EventSauce\EventSourcing\Serialization; |
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use EventSauce\EventSourcing\AggregateRootId; |
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use EventSauce\EventSourcing\ClassNameInflector; |
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use EventSauce\EventSourcing\DotSeparatedSnakeCaseInflector; |
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use EventSauce\EventSourcing\Header; |
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use EventSauce\EventSourcing\Message; |
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final class ConstructingMessageSerializer implements MessageSerializer |
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{ |
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private ClassNameInflector $classNameInflector; |
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private PayloadSerializer $payloadSerializer; |
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public function __construct( |
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ClassNameInflector $classNameInflector = null, |
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PayloadSerializer $payloadSerializer = null |
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) { |
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$this->classNameInflector = $classNameInflector ?: new DotSeparatedSnakeCaseInflector(); |
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$this->payloadSerializer = $payloadSerializer ?: new ConstructingPayloadSerializer(); |
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} |
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public function serializeMessage(Message $message): array |
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{ |
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$event = $message->event(); |
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$payload = $this->payloadSerializer->serializePayload($event); |
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$headers = $message->headers(); |
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$aggregateRootId = $headers[Header::AGGREGATE_ROOT_ID] ?? null; |
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if ($aggregateRootId instanceof AggregateRootId) { |
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$headers[Header::AGGREGATE_ROOT_ID_TYPE] = $this->classNameInflector->instanceToType($aggregateRootId); |
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$headers[Header::AGGREGATE_ROOT_ID] = $aggregateRootId->toString(); |
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} |
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return [ |
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'headers' => $headers, |
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'payload' => $payload, |
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]; |
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} |
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public function unserializePayload(array $payload): Message |
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{ |
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if (isset($payload['headers'][Header::AGGREGATE_ROOT_ID], $payload['headers'][Header::AGGREGATE_ROOT_ID_TYPE])) { |
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/** @var AggregateRootId $aggregateRootIdClassName */ |
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$aggregateRootIdClassName = $this->classNameInflector->typeToClassName($payload['headers'][Header::AGGREGATE_ROOT_ID_TYPE]); |
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$payload['headers'][Header::AGGREGATE_ROOT_ID] = $aggregateRootIdClassName::fromString($payload['headers'][Header::AGGREGATE_ROOT_ID]); |
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} |
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$className = $this->classNameInflector->typeToClassName($payload['headers'][Header::EVENT_TYPE]); |
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$event = $this->payloadSerializer->unserializePayload($className, $payload['payload']); |
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return new Message($event, $payload['headers']); |
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} |
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} |
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EventSaucePHP /
EventSauce
