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<?php
namespace Illuminate\Queue;
use Illuminate\Support\Str;
use Illuminate\Queue\Jobs\RedisJob;
use Illuminate\Contracts\Redis\Factory as Redis;
use Illuminate\Contracts\Queue\Queue as QueueContract;
class RedisQueue extends Queue implements QueueContract
{
/**
* The Redis factory implementation.
*
* @var \Illuminate\Contracts\Redis\Factory
*/
protected $redis;
/**
* The connection name.
*
* @var string
*/
protected $connection;
/**
* The name of the default queue.
*
* @var string
*/
protected $default;
/**
* The expiration time of a job.
*
* @var int|null
*/
protected $retryAfter = 60;
/**
* The maximum number of seconds to block for a job.
*
* @var int|null
*/
protected $blockFor = null;
/**
* Create a new Redis queue instance.
*
* @param \Illuminate\Contracts\Redis\Factory $redis
* @param string $default
* @param string|null $connection
* @param int $retryAfter
* @param int|null $blockFor
* @return void
*/
public function __construct(Redis $redis, $default = 'default', $connection = null, $retryAfter = 60, $blockFor = null)
{
$this->redis = $redis;
$this->default = $default;
$this->blockFor = $blockFor;
$this->connection = $connection;
$this->retryAfter = $retryAfter;
}
/**
* Get the size of the queue.
*
* @param string|null $queue
* @return int
*/
public function size($queue = null)
{
$queue = $this->getQueue($queue);
return $this->getConnection()->eval(
LuaScripts::size(), 3, $queue, $queue.':delayed', $queue.':reserved'
);
}
/**
* Push a new job onto the queue.
*
* @param object|string $job
* @param mixed $data
* @param string|null $queue
* @return mixed
*/
public function push($job, $data = '', $queue = null)
{
return $this->pushRaw($this->createPayload($job, $this->getQueue($queue), $data), $queue);
}
/**
* Push a raw payload onto the queue.
*
* @param string $payload
* @param string|null $queue
* @param array $options
* @return mixed
*/
public function pushRaw($payload, $queue = null, array $options = [])
{
$this->getConnection()->eval(
LuaScripts::push(), 2, $this->getQueue($queue),
$this->getQueue($queue).':notify', $payload
);
return json_decode($payload, true)['id'] ?? null;
}
/**
* Push a new job onto the queue after a delay.
*
* @param \DateTimeInterface|\DateInterval|int $delay
* @param object|string $job
* @param mixed $data
* @param string|null $queue
* @return mixed
*/
public function later($delay, $job, $data = '', $queue = null)
{
return $this->laterRaw($delay, $this->createPayload($job, $this->getQueue($queue), $data), $queue);
}
/**
* Push a raw job onto the queue after a delay.
*
* @param \DateTimeInterface|\DateInterval|int $delay
* @param string $payload
* @param string|null $queue
* @return mixed
*/
protected function laterRaw($delay, $payload, $queue = null)
{
$this->getConnection()->zadd(
$this->getQueue($queue).':delayed', $this->availableAt($delay), $payload
);
return json_decode($payload, true)['id'] ?? null;
}
/**
* Create a payload string from the given job and data.
*
* @param string $job
* @param string $queue
* @param mixed $data
* @return string
*/
protected function createPayloadArray($job, $queue, $data = '')
{
return array_merge(parent::createPayloadArray($job, $queue, $data), [
'id' => $this->getRandomId(),
'attempts' => 0,
]);
}
/**
* Pop the next job off of the queue.
*
* @param string|null $queue
* @return \Illuminate\Contracts\Queue\Job|null
*/
public function pop($queue = null)
{
$this->migrate($prefixed = $this->getQueue($queue));
if (empty($nextJob = $this->retrieveNextJob($prefixed))) {
return;
}
[$job, $reserved] = $nextJob;
if ($reserved) {
return new RedisJob(
$this->container, $this, $job,
$reserved, $this->connectionName, $queue ?: $this->default
);
}
}
/**
* Migrate any delayed or expired jobs onto the primary queue.
*
* @param string $queue
* @return void
*/
protected function migrate($queue)
{
$this->migrateExpiredJobs($queue.':delayed', $queue);
if (! is_null($this->retryAfter)) {
$this->migrateExpiredJobs($queue.':reserved', $queue);
}
}
/**
* Migrate the delayed jobs that are ready to the regular queue.
*
* @param string $from
* @param string $to
* @return array
*/
public function migrateExpiredJobs($from, $to)
{
return $this->getConnection()->eval(
LuaScripts::migrateExpiredJobs(), 3, $from, $to, $to.':notify', $this->currentTime()
);
}
/**
* Retrieve the next job from the queue.
*
* @param string $queue
* @param bool $block
* @return array
*/
protected function retrieveNextJob($queue, $block = true)
{
$nextJob = $this->getConnection()->eval(
LuaScripts::pop(), 3, $queue, $queue.':reserved', $queue.':notify',
$this->availableAt($this->retryAfter)
);
if (empty($nextJob)) {
return [null, null];
}
[$job, $reserved] = $nextJob;
if (! $job && ! is_null($this->blockFor) && $block &&
$this->getConnection()->blpop([$queue.':notify'], $this->blockFor)) {
return $this->retrieveNextJob($queue, false);
}
return [$job, $reserved];
}
/**
* Delete a reserved job from the queue.
*
* @param string $queue
* @param \Illuminate\Queue\Jobs\RedisJob $job
* @return void
*/
public function deleteReserved($queue, $job)
{
$this->getConnection()->zrem($this->getQueue($queue).':reserved', $job->getReservedJob());
}
/**
* Delete a reserved job from the reserved queue and release it.
*
* @param string $queue
* @param \Illuminate\Queue\Jobs\RedisJob $job
* @param int $delay
* @return void
*/
public function deleteAndRelease($queue, $job, $delay)
{
$queue = $this->getQueue($queue);
$this->getConnection()->eval(
LuaScripts::release(), 2, $queue.':delayed', $queue.':reserved',
$job->getReservedJob(), $this->availableAt($delay)
);
}
/**
* Get a random ID string.
*
* @return string
*/
protected function getRandomId()
{
return Str::random(32);
}
/**
* Get the queue or return the default.
*
* @param string|null $queue
* @return string
*/
public function getQueue($queue)
{
return 'queues:'.($queue ?: $this->default);
}
/**
* Get the connection for the queue.
*
* @return \Illuminate\Redis\Connections\Connection
*/
protected function getConnection()
{
return $this->redis->connection($this->connection);
}
/**
* Get the underlying Redis instance.
*
* @return \Illuminate\Contracts\Redis\Factory
*/
public function getRedis()
{
return $this->redis;
}
}