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1 | <?php |
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2 | |||
3 | declare(strict_types=1); |
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4 | |||
5 | namespace EventSauce\EventSourcing\Serialization; |
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6 | |||
7 | use EventSauce\EventSourcing\AggregateRootId; |
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8 | use EventSauce\EventSourcing\ClassNameInflector; |
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9 | use EventSauce\EventSourcing\DotSeparatedSnakeCaseInflector; |
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10 | use EventSauce\EventSourcing\Event; |
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11 | use EventSauce\EventSourcing\Header; |
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12 | use EventSauce\EventSourcing\Message; |
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13 | use Generator; |
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14 | |||
15 | final class ConstructingMessageSerializer implements MessageSerializer |
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16 | { |
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17 | /** |
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18 | * @var ClassNameInflector |
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19 | */ |
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20 | private $classNameInflector; |
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21 | |||
22 | 14 | public function __construct(ClassNameInflector $classNameInflector = null) |
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23 | { |
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24 | 14 | $this->classNameInflector = $classNameInflector ?: new DotSeparatedSnakeCaseInflector(); |
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25 | 14 | } |
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26 | |||
27 | 6 | public function serializeMessage(Message $message): array |
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28 | { |
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29 | 6 | $event = $message->event(); |
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30 | 6 | $payload = $event->toPayload(); |
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31 | 6 | $headers = $message->headers(); |
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32 | |||
33 | 6 | if (isset($headers[Header::AGGREGATE_ROOT_ID]) && $headers[Header::AGGREGATE_ROOT_ID] instanceof AggregateRootId) { |
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34 | 5 | $headers[Header::AGGREGATE_ROOT_ID_TYPE] = $this->classNameInflector->instanceToType($headers[Header::AGGREGATE_ROOT_ID]); |
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35 | 5 | $headers[Header::AGGREGATE_ROOT_ID] = $headers[Header::AGGREGATE_ROOT_ID]->toString(); |
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36 | } |
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37 | |||
38 | return [ |
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39 | 6 | 'headers' => $headers, |
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40 | 6 | 'payload' => $payload, |
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41 | ]; |
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42 | } |
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43 | |||
44 | 7 | public function unserializePayload(array $payload): Generator |
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45 | { |
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46 | 7 | if (isset($payload['headers'][Header::AGGREGATE_ROOT_ID], $payload['headers'][Header::AGGREGATE_ROOT_ID_TYPE])) { |
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47 | /** @var AggregateRootId $aggregateRootIdClassName */ |
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48 | 5 | $aggregateRootIdClassName = $this->classNameInflector->typeToClassName($payload['headers'][Header::AGGREGATE_ROOT_ID_TYPE]); |
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49 | 5 | $payload['headers'][Header::AGGREGATE_ROOT_ID] = $aggregateRootIdClassName::fromString($payload['headers'][Header::AGGREGATE_ROOT_ID]); |
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50 | } |
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51 | |||
52 | /** @var Event $className */ |
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53 | 7 | $className = $this->classNameInflector->typeToClassName($payload['headers'][Header::EVENT_TYPE]); |
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54 | 7 | $event = $className::fromPayload($payload['payload']); |
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55 | |||
56 | 7 | yield new Message($event, $payload['headers']); |
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57 | 7 | } |
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58 | } |
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59 |
Methods can only be called on objects. This check looks for methods being called on variables that have been inferred to never be objects.