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<?php |
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namespace Bavix\Flow; |
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use Psr\Cache\CacheItemPoolInterface; |
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class Cache |
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{ |
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/** |
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* @var CacheItemPoolInterface |
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*/ |
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protected static $pool; |
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/** |
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* @var array |
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*/ |
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protected static $cache = []; |
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/** |
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* @var array |
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*/ |
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protected static $names = []; |
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/** |
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* @return CacheItemPoolInterface |
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*/ |
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protected static function getPool() |
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{ |
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return static::$pool; |
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} |
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/** |
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* @param CacheItemPoolInterface $pool |
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*/ |
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public static function setPool($pool) |
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{ |
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static::$pool = $pool; |
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} |
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/** |
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* @param string $key |
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* |
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* @return string |
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*/ |
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protected static function name(string $key): string |
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{ |
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if (!isset(static::$names[$key])) |
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{ |
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static::$names[$key] = Flow::VERSION . \sha1($key); |
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} |
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return static::$names[$key]; |
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} |
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/** |
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* @param string $key |
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* |
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* @return null|\Psr\Cache\CacheItemInterface |
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* @throws \Psr\Cache\InvalidArgumentException |
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*/ |
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public static function getItem(string $key) |
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{ |
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if (static::getPool()) |
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{ |
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return static::$pool->getItem(static::name($key)); |
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} |
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return null; |
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} |
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/** |
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* @param string $key |
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* @param callable $callback |
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* |
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* @return mixed |
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*/ |
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protected static function syncCache(string $key, callable $callback) |
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{ |
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if (!isset(static::$cache[$key])) |
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{ |
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static::$cache[static::name($key)] = $callback(); |
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} |
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return static::$cache[static::name($key)]; |
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} |
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/** |
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* @param string $key |
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* |
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* @return mixed |
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*/ |
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protected static function getCache(string $key) |
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{ |
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return static::$cache[static::name($key)] ?? null; |
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} |
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/** |
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* @param string $key |
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* @param callable $callback |
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* |
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* @return mixed |
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*/ |
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public static function get(string $key, callable $callback) |
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{ |
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$item = static::getItem($key); |
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if (!$item) |
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{ |
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return static::syncCache($key, $callback); |
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} |
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if (!$item->isHit()) |
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{ |
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$item->set( |
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static::syncCache($key, $callback) |
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); |
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static::getPool()->save($item); |
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} |
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$cache = static::getCache($key); |
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if ($cache) |
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{ |
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return $cache; |
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} |
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return $item->get(); |
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} |
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} |
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bavix /
flow
