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<?php |
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declare(strict_types=1); |
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namespace RemotelyLiving\PHPQueryBus\DTO\Cache; |
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use RemotelyLiving\PHPQueryBus\AbstractResult; |
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use RemotelyLiving\PHPQueryBus\Exceptions\UnserializationFailure; |
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use RemotelyLiving\PHPQueryBus\Interfaces; |
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use RemotelyLiving\PHPQueryBus\Traits; |
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final class ResultWrapper implements \Serializable |
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{ |
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use Traits\TimeBoundary; |
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private Interfaces\Result $result; |
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private float $recomputeSeconds; |
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private int $ttl; |
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private float $storedTimestamp; |
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private function __construct() |
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{ |
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} |
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public static function wrap(Interfaces\Result $result, float $recomputeSeconds, int $ttl): self |
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{ |
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$self = new self(); |
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$self->result = $result; |
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$self->recomputeSeconds = $recomputeSeconds; |
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$self->ttl = $ttl; |
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return $self; |
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} |
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public function serialize(): string |
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{ |
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return \serialize([ |
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'result' => $this->result, |
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'recomputeSeconds' => $this->recomputeSeconds, |
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'ttl' => $this->ttl, |
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'storedTimestamp' => $this->getTimeStamp(), |
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]); |
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} |
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/** |
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* @psalm-suppress PropertyTypeCoercion |
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* @phpstan-ignore-next-line |
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*/ |
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public function unserialize($serialized, array $options = null): void |
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{ |
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$unserialized = (!$options) ? \unserialize($serialized) : \unserialize($serialized, $options); |
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$this->result = (is_object($unserialized['result']) && $unserialized['result'] instanceof Interfaces\Result) |
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? $unserialized['result'] |
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: AbstractResult::withErrors(new UnserializationFailure('Result object failed to unserialize properly')); |
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$this->recomputeSeconds = $unserialized['recomputeSeconds']; |
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$this->ttl = $unserialized['ttl']; |
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$this->storedTimestamp = $unserialized['storedTimestamp']; |
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} |
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public function getResult(): Interfaces\Result |
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{ |
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return $this->result; |
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} |
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public function willProbablyExpireSoon(): bool |
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{ |
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return ($this->getTimeStamp() - $this->recomputeSeconds * 1 * log(mt_rand() / mt_getrandmax()) |
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> $this->expiresAfterTimestamp()); |
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} |
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private function expiresAfterTimestamp(): int |
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{ |
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return (int) (($this->storedTimestamp ?? $this->getTimeStamp()) + $this->ttl); |
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} |
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} |
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remotelyliving /
php-query-bus
