<?php
namespace Illuminate\Redis\Limiters;
use Illuminate\Contracts\Redis\LimiterTimeoutException;
use Illuminate\Support\InteractsWithTime;
class ConcurrencyLimiterBuilder
{
use InteractsWithTime;
/**
* The Redis connection.
*
* @var \Illuminate\Redis\Connections\Connection
*/
public $connection;
/**
* The name of the lock.
*
* @var string
*/
public $name;
/**
* The maximum number of entities that can hold the lock at the same time.
*
* @var int
*/
public $maxLocks;
/**
* The number of seconds to maintain the lock until it is automatically released.
*
* @var int
*/
public $releaseAfter = 60;
/**
* The amount of time to block until a lock is available.
*
* @var int
*/
public $timeout = 3;
/**
* Create a new builder instance.
*
* @param \Illuminate\Redis\Connections\Connection $connection
* @param string $name
* @return void
*/
public function __construct($connection, $name)
{
$this->name = $name;
$this->connection = $connection;
}
/**
* Set the maximum number of locks that can be obtained per time window.
*
* @param int $maxLocks
* @return $this
*/
public function limit($maxLocks)
{
$this->maxLocks = $maxLocks;
return $this;
}
/**
* Set the number of seconds until the lock will be released.
*
* @param int $releaseAfter
* @return $this
*/
public function releaseAfter($releaseAfter)
{
$this->releaseAfter = $this->secondsUntil($releaseAfter);
return $this;
}
/**
* Set the amount of time to block until a lock is available.
*
* @param int $timeout
* @return $this
*/
public function block($timeout)
{
$this->timeout = $timeout;
return $this;
}
/**
* Execute the given callback if a lock is obtained, otherwise call the failure callback.
*
* @param callable $callback
* @param callable|null $failure
* @return mixed
*
* @throws \Illuminate\Contracts\Redis\LimiterTimeoutException
*/
public function then(callable $callback, callable $failure = null)
{
try {
return (new ConcurrencyLimiter(
$this->connection, $this->name, $this->maxLocks, $this->releaseAfter
))->block($this->timeout, $callback);
} catch (LimiterTimeoutException $e) {
if ($failure) {
return $failure($e);
}
throw $e;
}
}
}