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<?php |
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/** |
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* File containing the CacheServiceDecorator class. |
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* |
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* @copyright Copyright (C) eZ Systems AS. All rights reserved. |
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* @license For full copyright and license information view LICENSE file distributed with this source code. |
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*/ |
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namespace eZ\Publish\Core\Persistence\Cache; |
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use Stash\Interfaces\PoolInterface; |
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/** |
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* Class CacheServiceDecorator. |
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* |
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* Wraps the Cache Service for Spi cache to apply key prefix for the cache |
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*/ |
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class CacheServiceDecorator |
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{ |
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const SPI_CACHE_KEY_PREFIX = 'ez_spi'; |
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/** |
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* @var \Stash\Interfaces\PoolInterface |
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*/ |
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protected $cachePool; |
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/** |
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* Constructs the cache service decorator. |
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* |
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* @param \Stash\Interfaces\PoolInterface $cachePool |
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*/ |
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public function __construct(PoolInterface $cachePool) |
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{ |
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$this->cachePool = $cachePool; |
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} |
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/** |
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* Prepend key with prefix and support array format Stash supported before. |
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* |
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* {@see \Psr\Cache\CacheItemPoolInterface} |
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* |
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* @internal param array|string $key , $key, $key... |
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* |
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* @return \Stash\Interfaces\ItemInterface |
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*/ |
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public function getItem() |
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{ |
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$args = func_get_args(); |
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if (empty($args)) { |
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return $this->cachePool->getItem(self::SPI_CACHE_KEY_PREFIX); |
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} |
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// Upstream seems to no longer support array, so we flatten it |
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if (!isset($args[1]) && is_array($args[0])) { |
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$key = implode('/', array_map([$this, 'washKey'], $args[0])); |
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} else { |
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$key = '' . implode('/', array_map([$this, 'washKey'], $args)); |
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} |
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$key = $key === '' ? self::SPI_CACHE_KEY_PREFIX : self::SPI_CACHE_KEY_PREFIX . '/' . $key; |
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return $this->cachePool->getItem($key); |
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} |
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/** |
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* Prepend keys with prefix. |
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* |
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* {@see \Psr\Cache\CacheItemPoolInterface} |
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* |
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* @param array $keys |
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* @return \Stash\Interfaces\ItemInterface[] |
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*/ |
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public function getItems(array $keys = array()) |
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{ |
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$prefix = self::SPI_CACHE_KEY_PREFIX; |
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$keys = array_map( |
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function ($key) use ($prefix) { |
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$key = $this->washKey($key); |
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return $key === '' ? $prefix : $prefix . '/' . $key; |
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}, |
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$keys |
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); |
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return $this->cachePool->getItems($keys); |
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} |
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/** |
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* Remove slashes from start and end of keys, and for content replace it with _ to avoid issues for Stash. |
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* |
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* @param string $key |
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* @return string |
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*/ |
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private function washKey($key) |
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{ |
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return str_replace('/', '_', trim($key, '/')); |
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} |
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/** |
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* Clears the cache for the key, or if none is specified clears the entire cache. The key can be either |
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* a series of string arguments, or an array. |
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* |
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* @internal param array|null|string $key , $key, $key... |
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*/ |
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public function clear() |
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{ |
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$item = call_user_func_array(array($this, 'getItem'), func_get_args()); |
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return $item->clear(); |
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} |
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} |
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ezsystems /
ezpublish-kernel
