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<?php
namespace SimpleQueue\Adapter;
use DateTime;
use Exception;
use SimpleQueue\Exception\NotSupportedException;
use SimpleQueue\QueueAdapterInterface;
use SimpleQueue\Job;
use SplQueue;
/**
* Class MemoryAdapter
*
* @package SimpleQueue\Adapter
*/
class MemoryQueueAdapter implements QueueAdapterInterface
{
/**
* @var SplQueue
*/
protected $queue;
/**
* MemoryAdapter constructor.
*/
public function __construct()
{
$this->queue = new SplQueue();
}
/**
* Send a job
*
* @access public
* @param Job $job
* @return $this
*/
public function push(Job $job)
{
$this->queue->enqueue($job->serialize());
return $this;
}
/**
* Schedule a job in the future
*
* @access public
* @param Job $job
* @param DateTime $dateTime
* @return bool
* @throws NotSupportedException
*/
public function schedule(Job $job, DateTime $dateTime)
{
throw new NotSupportedException('Job delay is not supported by MemoryQueue');
}
/**
* Wait and get job from a queue
*
* @access public
* @return Job|null
*/
public function pull()
{
try {
$job = new Job();
$payload = $this->queue->dequeue();
return $job->unserialize($payload);
} catch (Exception $e) {
return null;
}
}
/**
* Acknowledge a job
*
* @access public
* @param Job $job
* @return $this
*/
public function completed(Job $job)
{
return $this;
}
/**
* Mark a job as failed
*
* @access public
* @param Job $job
* @return $this
*/
public function failed(Job $job)
{
$this->queue->enqueue($job->serialize());
return $this;
}
}
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