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<?php
/*
* This file is part of the Sonata Project package.
*
* (c) Thomas Rabaix <thomas.rabaix@sonata-project.org>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Sonata\Cache;
final class CacheElement implements CacheElementInterface
{
const MINUTE = 60;
const HOUR = 3600;
const DAY = 86400;
const WEEK = 604800;
const MONTH = 2.63e+6;
/**
* @var int
*/
private $ttl;
/**
* @var array
*/
private $keys = [];
/**
* @var mixed
*/
private $data;
/**
* @var \DateTime
*/
private $createdAt;
/**
* @var array
*/
private $contextualKeys = [];
/**
* Constructor.
*
* @param array $keys An array of keys
* @param mixed $data Data
* @param int $ttl A time to live, default 86400 seconds (CacheElement::DAY)
* @param array $contextualKeys An array of contextual keys
*/
public function __construct(array $keys, $data, int $ttl = self::DAY, array $contextualKeys = [])
{
$this->createdAt = new \DateTime();
$this->keys = $keys;
$this->ttl = $ttl;
$this->data = $data;
$this->contextualKeys = $contextualKeys;
}
/**
* {@inheritdoc}
*/
public function getKeys(): array
{
return $this->keys;
}
/**
* {@inheritdoc}
*/
public function getTtl(): int
{
return $this->ttl;
}
/**
* {@inheritdoc}
*/
public function getData()
{
return $this->data;
}
/**
* {@inheritdoc}
*/
public function isExpired(): bool
{
return strtotime('now') > ($this->createdAt->format('U') + $this->ttl);
}
/**
* {@inheritdoc}
*/
public function getExpirationDate(): \DateTimeInterface
{
if ($this->isExpired()) {
return new \DateTime();
}
$date = clone $this->createdAt;
$date = $date->add(new \DateInterval(sprintf('PT%sS', $this->ttl)));
return $date;
}
/**
* {@inheritdoc}
*/
public function getContextualKeys(): array
{
return $this->contextualKeys;
}
}
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