wiki-grav/plugins/email/vendor/symfony/messenger/Retry/MultiplierRetryStrategy.php

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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Messenger\Retry;
use Symfony\Component\Messenger\Envelope;
use Symfony\Component\Messenger\Exception\InvalidArgumentException;
use Symfony\Component\Messenger\Stamp\RedeliveryStamp;
/**
* A retry strategy with a constant or exponential retry delay.
*
* For example, if $delayMilliseconds=10000 & $multiplier=1 (default),
* each retry will wait exactly 10 seconds.
*
* But if $delayMilliseconds=10000 & $multiplier=2:
* * Retry 1: 10 second delay
* * Retry 2: 20 second delay (10000 * 2 = 20000)
* * Retry 3: 40 second delay (20000 * 2 = 40000)
*
* @author Ryan Weaver <ryan@symfonycasts.com>
*
* @final
*/
class MultiplierRetryStrategy implements RetryStrategyInterface
{
private $maxRetries;
private $delayMilliseconds;
private $multiplier;
private $maxDelayMilliseconds;
/**
* @param int $maxRetries The maximum number of times to retry
* @param int $delayMilliseconds Amount of time to delay (or the initial value when multiplier is used)
* @param float $multiplier Multiplier to apply to the delay each time a retry occurs
* @param int $maxDelayMilliseconds Maximum delay to allow (0 means no maximum)
*/
public function __construct(int $maxRetries = 3, int $delayMilliseconds = 1000, float $multiplier = 1, int $maxDelayMilliseconds = 0)
{
$this->maxRetries = $maxRetries;
if ($delayMilliseconds < 0) {
throw new InvalidArgumentException(sprintf('Delay must be greater than or equal to zero: "%s" given.', $delayMilliseconds));
}
$this->delayMilliseconds = $delayMilliseconds;
if ($multiplier < 1) {
throw new InvalidArgumentException(sprintf('Multiplier must be greater than zero: "%s" given.', $multiplier));
}
$this->multiplier = $multiplier;
if ($maxDelayMilliseconds < 0) {
throw new InvalidArgumentException(sprintf('Max delay must be greater than or equal to zero: "%s" given.', $maxDelayMilliseconds));
}
$this->maxDelayMilliseconds = $maxDelayMilliseconds;
}
/**
* @param \Throwable|null $throwable The cause of the failed handling
*/
public function isRetryable(Envelope $message, \Throwable $throwable = null): bool
{
$retries = RedeliveryStamp::getRetryCountFromEnvelope($message);
return $retries < $this->maxRetries;
}
/**
* @param \Throwable|null $throwable The cause of the failed handling
*/
public function getWaitingTime(Envelope $message, \Throwable $throwable = null): int
{
$retries = RedeliveryStamp::getRetryCountFromEnvelope($message);
$delay = $this->delayMilliseconds * $this->multiplier ** $retries;
if ($delay > $this->maxDelayMilliseconds && 0 !== $this->maxDelayMilliseconds) {
return $this->maxDelayMilliseconds;
}
return (int) ceil($delay);
}
}