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<?php |
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namespace PSB\Core\Serialization\Pipeline; |
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use PSB\Core\Exception\MessageDeserializationException; |
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use PSB\Core\HeaderTypeEnum; |
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use PSB\Core\Pipeline\Incoming\IncomingContextFactory; |
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use PSB\Core\Pipeline\Incoming\IncomingLogicalMessage; |
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use PSB\Core\Pipeline\Incoming\IncomingLogicalMessageFactory; |
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use PSB\Core\Pipeline\Incoming\StageContext\IncomingLogicalMessageContext; |
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use PSB\Core\Pipeline\Incoming\StageContext\IncomingPhysicalMessageContext; |
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use PSB\Core\Pipeline\StageConnectorInterface; |
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use PSB\Core\Serialization\MessageDeserializerResolver; |
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use PSB\Core\Transport\IncomingPhysicalMessage; |
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class DeserializeLogicalMessageConnector implements StageConnectorInterface |
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{ |
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/** |
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* @var MessageDeserializerResolver |
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*/ |
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private $deserializerResolver; |
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/** |
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* @var IncomingLogicalMessageFactory |
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*/ |
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private $logicalMessageFactory; |
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/** |
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* @var IncomingContextFactory |
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*/ |
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private $incomingContextFactory; |
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/** |
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* @param MessageDeserializerResolver $deserializerResolver |
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* @param IncomingLogicalMessageFactory $logicalMessageFactory |
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* @param IncomingContextFactory $incomingContextFactory |
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*/ |
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public function __construct( |
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MessageDeserializerResolver $deserializerResolver, |
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IncomingLogicalMessageFactory $logicalMessageFactory, |
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IncomingContextFactory $incomingContextFactory |
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) { |
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$this->deserializerResolver = $deserializerResolver; |
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$this->logicalMessageFactory = $logicalMessageFactory; |
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$this->incomingContextFactory = $incomingContextFactory; |
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} |
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/** |
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* @param IncomingPhysicalMessageContext $context |
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* @param callable $next |
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*/ |
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public function invoke($context, callable $next) |
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{ |
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$physicalMessage = $context->getMessage(); |
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$logicalMessage = $this->extractWithExceptionHandling($physicalMessage); |
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if (!$logicalMessage) { |
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throw new MessageDeserializationException($physicalMessage->getMessageId()); |
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} |
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$next($this->incomingContextFactory->createLogicalMessageContext($logicalMessage, $context)); |
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} |
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/** |
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* @param IncomingPhysicalMessage $physicalMessage |
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* |
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* @return IncomingLogicalMessage|null |
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*/ |
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private function extractWithExceptionHandling(IncomingPhysicalMessage $physicalMessage) |
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{ |
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try { |
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return $this->extractMessage($physicalMessage); |
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} catch (\Throwable $t) { |
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throw new MessageDeserializationException($physicalMessage->getMessageId(), $t); |
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} |
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} |
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/** |
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* @param IncomingPhysicalMessage $physicalMessage |
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* |
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* @return IncomingLogicalMessage|null |
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*/ |
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private function extractMessage(IncomingPhysicalMessage $physicalMessage) |
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{ |
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$body = $physicalMessage->getBody(); |
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if ($body === null || $body === '') { |
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return null; |
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} |
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if (!isset($physicalMessage->getHeaders()[HeaderTypeEnum::ENCLOSED_CLASS])) { |
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return null; |
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} |
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$messageClass = $physicalMessage->getHeaders()[HeaderTypeEnum::ENCLOSED_CLASS]; |
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$serializer = $this->deserializerResolver->resolve($physicalMessage->getHeaders()); |
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$instanceMessage = $serializer->deserialize($body, $messageClass); |
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return $this->logicalMessageFactory->createFromObject($instanceMessage); |
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} |
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/** |
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* @return string |
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*/ |
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public static function getStageContextClass() |
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{ |
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return IncomingPhysicalMessageContext::class; |
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} |
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/** |
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* @return string |
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*/ |
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public static function getNextStageContextClass() |
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{ |
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return IncomingLogicalMessageContext::class; |
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} |
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} |
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phpservicebus /
core
