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<?php |
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namespace Cmp\Queues\Infrastructure\AWS\v20121105\Queue; |
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use Aws\Sqs\SqsClient; |
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use Cmp\Queues\Domain\Queue\Exception\ReaderException; |
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use Cmp\Queues\Domain\Queue\QueueReader as DomainQueueReader; |
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use Exception; |
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use Psr\Log\LoggerInterface; |
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class QueueReader implements DomainQueueReader |
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{ |
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/** |
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* @var SqsClient |
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*/ |
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protected $client; |
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/** |
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* @var string |
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*/ |
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protected $queueUrl; |
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/** |
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* @var string |
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*/ |
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protected $queueName; |
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/** |
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* @var MessageHandler |
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*/ |
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protected $messageHandler; |
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/** |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* @param SqsClient $client |
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* @param string $queueName |
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* @param MessageHandler $messageHandler |
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* @param LoggerInterface $logger |
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*/ |
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public function __construct(SqsClient $client, $queueName, MessageHandler $messageHandler, LoggerInterface $logger) |
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{ |
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$this->client = $client; |
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$this->queueName = $queueName; |
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$this->logger = $logger; |
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$this->messageHandler = $messageHandler; |
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} |
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/** |
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* @param callable $callback |
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* @param int $timeout |
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* |
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* @throws ReaderException |
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*/ |
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public function read(callable $callback, $timeout=0) |
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{ |
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$this->initialize(); |
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$this->messageHandler->setCallback($callback); |
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try { |
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$this->consume($timeout); |
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} catch(\Exception $e) { |
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throw new ReaderException("Error occurred while reading", 0, $e); |
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} |
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} |
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/** |
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* Deletes all messages from the queue |
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*/ |
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public function purge() |
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{ |
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$this->client->purgeQueue($this->queueUrl); |
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} |
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/** |
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* @param int $timeout |
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*/ |
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protected function consume($timeout) |
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{ |
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$result = $this->client->receiveMessage([ |
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'QueueUrl' => $this->queueUrl, |
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'MessageAttributeNames' => ['All'], |
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'MaxNumberOfMessages' => 10, |
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'WaitTimeSeconds' => $timeout, |
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]); |
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$messages = isset($result['Messages']) ? $result['Messages'] : []; |
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foreach ($messages as $message) { |
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$this->messageHandler->handleMessage($message); |
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$this->client->deleteMessage(['QueueUrl' => $this->queueUrl, 'ReceiptHandle' => $message['ReceiptHandle']]); |
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} |
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} |
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/** |
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* @throws ReaderException |
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*/ |
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protected function initialize() |
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{ |
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try { |
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$this->createQueue(); |
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} catch (Exception $e) { |
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$this->logger->error('Error trying to create queue', ['exception' => $e]); |
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throw new ReaderException('Error initializing queue reader', 0, $e); |
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} |
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} |
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/** |
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* Creates the queue in SQS, nothing will happen if the queue already exists |
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*/ |
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protected function createQueue() |
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{ |
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if (!isset($this->queueUrl)) { |
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$result = $this->client->createQueue(array('QueueName' => $this->queueName)); |
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$this->queueUrl = $result['QueueUrl']; |
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} |
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} |
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} |
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CMProductions /
queues
It seems like the type of the argument is not accepted by the function/method which you are calling.
In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug.
We suggest to add an explicit type cast like in the following example: