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<?php |
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declare(strict_types=1); |
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namespace Genkgo\Mail\Queue; |
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use Genkgo\Mail\Exception\EmptyQueueException; |
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use Genkgo\Mail\Exception\QueueStoreException; |
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use Genkgo\Mail\GenericMessage; |
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use Genkgo\Mail\MessageInterface; |
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use Predis\ClientInterface; |
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use Predis\Connection\ConnectionException; |
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final class RedisQueue implements QueueInterface, \Countable |
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{ |
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/** |
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* @var ClientInterface |
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*/ |
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private $client; |
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/** |
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* @var string |
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*/ |
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private $key; |
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/** |
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* RedisQueue constructor. |
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* @param ClientInterface $client |
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* @param string $key |
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*/ |
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public function __construct(ClientInterface $client, string $key) |
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{ |
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$this->client = $client; |
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$this->key = $key; |
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} |
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/** |
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* @param MessageInterface $message |
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* @throws QueueStoreException |
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*/ |
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public function store(MessageInterface $message): void |
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{ |
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try { |
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$this->client->rpush($this->key, (string)$message); |
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} catch (ConnectionException $e) { |
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throw new QueueStoreException('Cannot add message to redis queue: ' . $e->getMessage()); |
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} |
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} |
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/** |
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* @return MessageInterface |
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* @throws EmptyQueueException |
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* @throws QueueStoreException |
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*/ |
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public function fetch(): MessageInterface |
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{ |
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try { |
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$message = $this->client->lpop($this->key); |
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if ($message) { |
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return GenericMessage::fromString($message); |
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} |
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throw new EmptyQueueException(); |
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} catch (ConnectionException $e) { |
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throw new QueueStoreException('Cannot add message to redis queue ' . $e->getMessage()); |
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} |
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} |
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/** |
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* @return int |
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* @throws QueueStoreException |
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*/ |
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public function count(): int |
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{ |
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try { |
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return $this->client->llen($this->key); |
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} catch (ConnectionException $e) { |
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throw new QueueStoreException('Cannot get messages from redis queue ' . $e->getMessage()); |
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} |
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} |
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} |