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<?php |
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namespace Ozean12\GooglePubSubBundle\Service\Publisher; |
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use Google\Cloud\Exception\ConflictException; |
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use Google\Cloud\PubSub\PubSubClient; |
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use Google\Cloud\PubSub\Topic; |
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use JMS\Serializer\Serializer; |
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use Ozean12\GooglePubSubBundle\DTO\MessageDataDTOInterface; |
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use Ozean12\GooglePubSubBundle\DTO\PublishMessageResultDTO; |
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use Ozean12\GooglePubSubBundle\Service\AbstractClient; |
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/** |
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* Class Publisher |
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*/ |
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class Publisher extends AbstractClient |
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{ |
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/** |
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* @var Topic |
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*/ |
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private $topic; |
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/** |
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* @var string |
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*/ |
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private $topicName; |
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/** |
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* Publisher constructor. |
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* |
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* @param string $topic |
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* @param PubSubClient $client |
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* @param Serializer $serializer |
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*/ |
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public function __construct($topic, PubSubClient $client, Serializer $serializer) |
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{ |
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parent::__construct($client, $serializer); |
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$this->topicName = $topic; |
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} |
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/** |
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* @param MessageDataDTOInterface $data |
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* @param array $attributes |
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* @param array $options |
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* @return PublishMessageResultDTO |
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*/ |
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public function publish(MessageDataDTOInterface $data, array $attributes = [], $options = []) |
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{ |
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$this->setupTopic(); |
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$message = [ |
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'data' => $this->serializer->serialize($data, 'json'), |
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]; |
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if (!empty($attributes)) { |
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$message['attributes'] = $attributes; |
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} |
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$result = $this->topic->publish($message, $options); |
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/** @var PublishMessageResultDTO $resultDTO */ |
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$resultDTO = $this->serializer->fromArray($result, PublishMessageResultDTO::class); |
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$this->logInfo('Message(s) {messages} submitted to topic {topic}', [ |
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'messages' => join(', ', $resultDTO->getMessageIds()), |
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'topic' => $this->topicName, |
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]); |
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return $resultDTO; |
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} |
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/** |
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* Create or fetch topic |
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*/ |
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private function setupTopic() |
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{ |
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if ($this->topic instanceof Topic) { |
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return; |
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} |
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try { |
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$this->topic = $this->client->createTopic($this->topicName); |
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$this->logInfo('New topic {topic} created', ['topic' => $this->topicName]); |
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} catch (ConflictException $exception) { // topic already exists |
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$this->topic = $this->client->topic($this->topicName); |
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} |
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} |
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} |
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ozean12 /
GooglePubSubBundle
