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<?php |
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namespace Simplario\Quedis; |
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use Simplario\Quedis\Interfaces\IteratorInterface; |
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use Simplario\Quedis\Interfaces\MessageInterface; |
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use Simplario\Quedis\Interfaces\QueueInterface; |
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/** |
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* Class Iterator |
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* |
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* @package Simplario\Quedis |
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*/ |
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class Iterator implements IteratorInterface |
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{ |
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/** |
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* @var QueueInterface |
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*/ |
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protected $queue; |
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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 string |
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*/ |
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protected $strategy; |
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/** |
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* @var int |
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*/ |
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protected $timeout; |
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/** |
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* @var int |
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*/ |
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protected $index = 0; |
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/** |
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* @var MessageInterface |
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*/ |
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protected $lastMessage; |
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/** |
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* Iterator constructor. |
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* |
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* @param QueueInterface $queue |
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* @param string $queueName |
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* @param string $strategy |
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* @param int $timeout |
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*/ |
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public function __construct(QueueInterface $queue, $queueName, $strategy = 'pop', $timeout = 0) |
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{ |
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$this |
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->setQueue($queue) |
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->setQueueName($queueName) |
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->setStrategy($strategy) |
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->setTimeout($timeout); |
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} |
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/** |
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* @param QueueInterface $queue |
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* |
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* @return $this |
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*/ |
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public function setQueue(QueueInterface $queue) |
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{ |
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$this->queue = $queue; |
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return $this; |
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} |
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/** |
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* @param $queueName |
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* |
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* @return $this |
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*/ |
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public function setQueueName($queueName) |
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{ |
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$this->queueName = $queueName; |
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return $this; |
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} |
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/** |
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* @param $strategy |
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* |
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* @return $this |
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*/ |
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public function setStrategy($strategy) |
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{ |
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$this->strategy = in_array($strategy, ['pop', 'reserve']) ? $strategy : 'pop'; |
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return $this; |
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} |
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/** |
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* @param $timeout |
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* |
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* @return $this |
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*/ |
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public function setTimeout($timeout) |
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{ |
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$this->timeout = $timeout; |
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return $this; |
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} |
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/** |
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* @return null|MessageInterface |
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*/ |
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protected function getMessage() |
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{ |
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return $this->queue->{$this->strategy}($this->queueName, $this->timeout); |
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} |
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// implement \Iterator methods ============================================== |
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/** |
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* @return MessageInterface |
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*/ |
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public function current() |
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{ |
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return $this->lastMessage; |
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} |
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/** |
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* @return int |
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*/ |
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public function key() |
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{ |
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return $this->index; |
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} |
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/** |
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* @return bool |
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*/ |
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public function valid() |
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{ |
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$this->lastMessage = $this->getMessage(); |
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return $this->lastMessage instanceof MessageInterface; |
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} |
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/** |
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* @return void |
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*/ |
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public function rewind() |
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{ |
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$this->index = 0; |
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} |
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/** |
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* @return void |
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*/ |
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3 |
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public function next() |
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{ |
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$this->index++; |
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} |
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} |
simplario /
quedis
