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symfony/src/Symfony/Component/PropertyInfo/PropertyInfoCacheExtractor.php
Nicolas Grekas 4036357150 Merge branch '4.4'
* 4.4:
  some backports from master
  Add return types to internal|final|private methods
  [HttpFoundation] Precalculate session expiry timestamp
2019-08-20 18:53:57 +02:00

125 lines
3.5 KiB
PHP

<?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\PropertyInfo;
use Psr\Cache\CacheItemPoolInterface;
/**
* Adds a PSR-6 cache layer on top of an extractor.
*
* @author Kévin Dunglas <dunglas@gmail.com>
*
* @final
*/
class PropertyInfoCacheExtractor implements PropertyInfoExtractorInterface, PropertyInitializableExtractorInterface
{
private $propertyInfoExtractor;
private $cacheItemPool;
private $arrayCache = [];
public function __construct(PropertyInfoExtractorInterface $propertyInfoExtractor, CacheItemPoolInterface $cacheItemPool)
{
$this->propertyInfoExtractor = $propertyInfoExtractor;
$this->cacheItemPool = $cacheItemPool;
}
/**
* {@inheritdoc}
*/
public function isReadable(string $class, string $property, array $context = []): ?bool
{
return $this->extract('isReadable', [$class, $property, $context]);
}
/**
* {@inheritdoc}
*/
public function isWritable(string $class, string $property, array $context = []): ?bool
{
return $this->extract('isWritable', [$class, $property, $context]);
}
/**
* {@inheritdoc}
*/
public function getShortDescription(string $class, string $property, array $context = []): ?string
{
return $this->extract('getShortDescription', [$class, $property, $context]);
}
/**
* {@inheritdoc}
*/
public function getLongDescription(string $class, string $property, array $context = []): ?string
{
return $this->extract('getLongDescription', [$class, $property, $context]);
}
/**
* {@inheritdoc}
*/
public function getProperties(string $class, array $context = []): ?array
{
return $this->extract('getProperties', [$class, $context]);
}
/**
* {@inheritdoc}
*/
public function getTypes(string $class, string $property, array $context = []): ?array
{
return $this->extract('getTypes', [$class, $property, $context]);
}
/**
* {@inheritdoc}
*/
public function isInitializable(string $class, string $property, array $context = []): ?bool
{
return $this->extract('isInitializable', [$class, $property, $context]);
}
/**
* Retrieves the cached data if applicable or delegates to the decorated extractor.
*
* @return mixed
*/
private function extract(string $method, array $arguments)
{
try {
$serializedArguments = serialize($arguments);
} catch (\Exception $exception) {
// If arguments are not serializable, skip the cache
return $this->propertyInfoExtractor->{$method}(...$arguments);
}
// Calling rawurlencode escapes special characters not allowed in PSR-6's keys
$key = rawurlencode($method.'.'.$serializedArguments);
if (\array_key_exists($key, $this->arrayCache)) {
return $this->arrayCache[$key];
}
$item = $this->cacheItemPool->getItem($key);
if ($item->isHit()) {
return $this->arrayCache[$key] = $item->get();
}
$value = $this->propertyInfoExtractor->{$method}(...$arguments);
$item->set($value);
$this->cacheItemPool->save($item);
return $this->arrayCache[$key] = $value;
}
}