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<?php |
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namespace Zenstruck\Queue\Driver; |
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use Zenstruck\Queue\Driver; |
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use Zenstruck\Queue\Job; |
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use Zenstruck\Queue\Payload; |
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/** |
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* @author Kevin Bond <[email protected]> |
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*/ |
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abstract class BaseRedisDriver implements Driver |
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{ |
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private $queueName; |
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/** |
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* @param string $queueName |
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*/ |
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public function __construct($queueName) |
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{ |
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$this->queueName = $queueName; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function push(Payload $payload) |
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{ |
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$this->rPush($this->queueName, $this->encodePayload($payload)); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function pop() |
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{ |
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$rawPayload = $this->lPop($this->queueName); |
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if (null === $rawPayload) { |
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// empty queue |
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return null; |
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} |
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if (null === $job = $this->decodePayload($rawPayload)) { |
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// can't handle, requeue |
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$this->rPush($this->queueName, $rawPayload); |
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return null; |
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} |
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return $job; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function release(Job $job) |
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{ |
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$this->rPush($this->queueName, $this->encodePayload($job->payload(), $job->attempts())); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function delete(Job $job) |
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{ |
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// noop - job is deleted during pop |
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} |
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/** |
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* @param Payload $payload |
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* @param int $attempts |
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* |
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* @return string |
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*/ |
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private function encodePayload(Payload $payload, $attempts = 0) |
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{ |
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return json_encode([ |
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'payload' => $payload, |
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'attempts' => $attempts, |
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]); |
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} |
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/** |
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* @param string $rawPayload |
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* |
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* @return Job|null |
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*/ |
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private function decodePayload($rawPayload) |
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{ |
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$decodedPayload = json_decode($rawPayload, true); |
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if (JSON_ERROR_NONE !== json_last_error()) { |
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return null; |
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} |
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if (!is_array($decodedPayload)) { |
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return null; |
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} |
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if (!isset($decodedPayload['payload']) || !isset($decodedPayload['attempts'])) { |
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return null; |
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} |
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if (!is_array($decodedPayload['payload'])) { |
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return null; |
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} |
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if (null === $payload = Payload::fromArray($decodedPayload['payload'])) { |
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return null; |
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} |
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return new Job($payload, $decodedPayload['attempts'] + 1); |
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} |
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/** |
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* @param string $queueName |
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* @param string $payload |
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*/ |
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abstract protected function rPush($queueName, $payload); |
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/** |
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* @param string $queueName |
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* |
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* @return string|null |
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*/ |
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abstract protected function lPop($queueName); |
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} |
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|
kbond /
php-queue
