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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\Cache;
- use Psr\Log\LoggerInterface;
- use Symfony\Component\Cache\Exception\InvalidArgumentException;
- use Symfony\Component\Cache\Exception\LogicException;
- use Symfony\Contracts\Cache\ItemInterface;
- /**
- * @author Nicolas Grekas <p@tchwork.com>
- */
- final class CacheItem implements ItemInterface
- {
- private const METADATA_EXPIRY_OFFSET = 1527506807;
- protected $key;
- protected $value;
- protected $isHit = false;
- protected $expiry;
- protected $defaultLifetime;
- protected $metadata = [];
- protected $newMetadata = [];
- protected $innerItem;
- protected $poolHash;
- protected $isTaggable = false;
- /**
- * {@inheritdoc}
- */
- public function getKey(): string
- {
- return $this->key;
- }
- /**
- * {@inheritdoc}
- */
- public function get()
- {
- return $this->value;
- }
- /**
- * {@inheritdoc}
- */
- public function isHit(): bool
- {
- return $this->isHit;
- }
- /**
- * {@inheritdoc}
- *
- * @return $this
- */
- public function set($value): self
- {
- $this->value = $value;
- return $this;
- }
- /**
- * {@inheritdoc}
- *
- * @return $this
- */
- public function expiresAt($expiration): self
- {
- if (null === $expiration) {
- $this->expiry = $this->defaultLifetime > 0 ? microtime(true) + $this->defaultLifetime : null;
- } elseif ($expiration instanceof \DateTimeInterface) {
- $this->expiry = (float) $expiration->format('U.u');
- } else {
- throw new InvalidArgumentException(sprintf('Expiration date must implement DateTimeInterface or be null, "%s" given.', \is_object($expiration) ? \get_class($expiration) : \gettype($expiration)));
- }
- return $this;
- }
- /**
- * {@inheritdoc}
- *
- * @return $this
- */
- public function expiresAfter($time): self
- {
- if (null === $time) {
- $this->expiry = $this->defaultLifetime > 0 ? microtime(true) + $this->defaultLifetime : null;
- } elseif ($time instanceof \DateInterval) {
- $this->expiry = microtime(true) + \DateTime::createFromFormat('U', 0)->add($time)->format('U.u');
- } elseif (\is_int($time)) {
- $this->expiry = $time + microtime(true);
- } else {
- throw new InvalidArgumentException(sprintf('Expiration date must be an integer, a DateInterval or null, "%s" given.', \is_object($time) ? \get_class($time) : \gettype($time)));
- }
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function tag($tags): ItemInterface
- {
- if (!$this->isTaggable) {
- throw new LogicException(sprintf('Cache item "%s" comes from a non tag-aware pool: you cannot tag it.', $this->key));
- }
- if (!is_iterable($tags)) {
- $tags = [$tags];
- }
- foreach ($tags as $tag) {
- if (!\is_string($tag)) {
- throw new InvalidArgumentException(sprintf('Cache tag must be string, "%s" given.', \is_object($tag) ? \get_class($tag) : \gettype($tag)));
- }
- if (isset($this->newMetadata[self::METADATA_TAGS][$tag])) {
- continue;
- }
- if ('' === $tag) {
- throw new InvalidArgumentException('Cache tag length must be greater than zero.');
- }
- if (false !== strpbrk($tag, self::RESERVED_CHARACTERS)) {
- throw new InvalidArgumentException(sprintf('Cache tag "%s" contains reserved characters "%s".', $tag, self::RESERVED_CHARACTERS));
- }
- $this->newMetadata[self::METADATA_TAGS][$tag] = $tag;
- }
- return $this;
- }
- /**
- * {@inheritdoc}
- */
- public function getMetadata(): array
- {
- return $this->metadata;
- }
- /**
- * Returns the list of tags bound to the value coming from the pool storage if any.
- *
- * @deprecated since Symfony 4.2, use the "getMetadata()" method instead.
- */
- public function getPreviousTags(): array
- {
- @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.2, use the "getMetadata()" method instead.', __METHOD__), E_USER_DEPRECATED);
- return $this->metadata[self::METADATA_TAGS] ?? [];
- }
- /**
- * Validates a cache key according to PSR-6.
- *
- * @param string $key The key to validate
- *
- * @throws InvalidArgumentException When $key is not valid
- */
- public static function validateKey($key): string
- {
- if (!\is_string($key)) {
- throw new InvalidArgumentException(sprintf('Cache key must be string, "%s" given.', \is_object($key) ? \get_class($key) : \gettype($key)));
- }
- if ('' === $key) {
- throw new InvalidArgumentException('Cache key length must be greater than zero.');
- }
- if (false !== strpbrk($key, self::RESERVED_CHARACTERS)) {
- throw new InvalidArgumentException(sprintf('Cache key "%s" contains reserved characters "%s".', $key, self::RESERVED_CHARACTERS));
- }
- return $key;
- }
- /**
- * Internal logging helper.
- *
- * @internal
- */
- public static function log(?LoggerInterface $logger, string $message, array $context = [])
- {
- if ($logger) {
- $logger->warning($message, $context);
- } else {
- $replace = [];
- foreach ($context as $k => $v) {
- if (is_scalar($v)) {
- $replace['{'.$k.'}'] = $v;
- }
- }
- @trigger_error(strtr($message, $replace), E_USER_WARNING);
- }
- }
- }
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