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<?php |
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namespace Silviooosilva\CacheerPhp\CacheStore; |
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use Silviooosilva\CacheerPhp\Utils\CacheLogger; |
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use Silviooosilva\CacheerPhp\Interface\CacheerInterface; |
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/** |
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* Class ArrayCacheStore |
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* @author Sílvio Silva <https://github.com/silviooosilva> |
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* @package Silviooosilva\CacheerPhp |
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*/ |
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class ArrayCacheStore implements CacheerInterface |
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{ |
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/** |
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* @param array $arrayStore |
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*/ |
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private array $arrayStore = []; |
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/** |
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* @param boolean |
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*/ |
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private bool $success = false; |
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/** |
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* @param string |
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*/ |
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private string $message = ''; |
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/** |
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* @var CacheLogger |
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*/ |
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private $logger = null; |
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/** |
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* ArrayCacheStore constructor. |
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* |
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* @param string $logPath |
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*/ |
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public function __construct(string $logPath) |
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{ |
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$this->logger = new CacheLogger($logPath); |
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} |
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/** |
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* Appends data to an existing cache item. |
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* |
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* @param string $cacheKey |
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* @param mixed $cacheData |
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* @param string $namespace |
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* @return bool |
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*/ |
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public function appendCache(string $cacheKey, mixed $cacheData, string $namespace = '') |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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if (!$this->has($cacheKey, $namespace)) { |
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$this->setMessage("cacheData can't be appended, because doesn't exist or expired", false); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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return false; |
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} |
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$this->arrayStore[$arrayStoreKey]['cacheData'] = serialize($cacheData); |
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$this->setMessage("Cache appended successfully", true); |
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return true; |
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} |
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/** |
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* Builds a unique key for the array store. |
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* |
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* @param string $cacheKey |
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* @param string $namespace |
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* @return string |
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*/ |
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private function buildArrayKey(string $cacheKey, string $namespace = '') |
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{ |
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return !empty($namespace) ? ($namespace . ':' . $cacheKey) : $cacheKey; |
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} |
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/** |
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* Clears a specific cache item. |
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* |
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* @param string $cacheKey |
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* @param string $namespace |
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* @return void |
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*/ |
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public function clearCache(string $cacheKey, string $namespace = '') |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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unset($this->arrayStore[$arrayStoreKey]); |
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$this->setMessage("Cache cleared successfully", true); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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} |
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/** |
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* Decrements a cache item by a specified amount. |
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* |
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* @param string $cacheKey |
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* @param int $amount |
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* @param string $namespace |
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* @return bool |
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*/ |
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public function decrement(string $cacheKey, int $amount = 1, string $namespace = '') |
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{ |
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return $this->increment($cacheKey, ($amount * -1), $namespace); |
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} |
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/** |
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* Flushes all cache items. |
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* |
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* @return void |
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*/ |
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public function flushCache() |
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{ |
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unset($this->arrayStore); |
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$this->arrayStore = []; |
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$this->setMessage("Cache flushed successfully", true); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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} |
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/** |
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* Stores a cache item permanently. |
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* |
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* @param string $cacheKey |
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* @param mixed $cacheData |
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* @param string $namespace |
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* @param int|string $ttl |
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* @return void |
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*/ |
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public function forever(string $cacheKey, mixed $cacheData) |
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{ |
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$this->putCache($cacheKey, $cacheData, ttl: 31536000 * 1000); |
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$this->setMessage($this->getMessage(), $this->isSuccess()); |
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} |
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/** |
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* Retrieves a single cache item. |
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* |
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* @param string $cacheKey |
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* @param string $namespace |
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* @param int|string $ttl |
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* @return mixed |
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*/ |
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public function getCache(string $cacheKey, string $namespace = '', string|int $ttl = 3600) |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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if (!$this->has($cacheKey, $namespace)) { |
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$this->handleCacheNotFound(); |
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return false; |
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} |
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$cacheData = $this->arrayStore[$arrayStoreKey]; |
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if ($this->isExpired($cacheData)) { |
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$this->handleCacheExpired($arrayStoreKey); |
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return false; |
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} |
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$this->setMessage("Cache retrieved successfully", true); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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return $this->serialize($cacheData['cacheData'], false); |
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} |
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/** |
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* Verify if the cache is expired. |
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* |
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* @param array $cacheData |
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* @return bool |
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*/ |
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private function isExpired(array $cacheData): bool |
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{ |
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$expirationTime = $cacheData['expirationTime'] ?? 0; |
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$now = time(); |
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return $expirationTime !== 0 && $now >= $expirationTime; |
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} |
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/** |
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* Handles the case when cache data is not found. |
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* |
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* @return void |
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*/ |
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private function handleCacheNotFound() |
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{ |
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$this->setMessage("cacheData not found, does not exists or expired", false); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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} |
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/** |
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* Handles the case when cache data has expired. |
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* |
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* @param string $arrayStoreKey |
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* @return void |
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*/ |
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private function handleCacheExpired(string $arrayStoreKey) |
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{ |
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$parts = explode(':', $arrayStoreKey, 2); |
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if (count($parts) === 2) { |
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list($np, $key) = $parts; |
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} else { |
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$np = ''; |
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$key = $arrayStoreKey; |
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} |
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$this->clearCache($key, $np); |
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$this->setMessage("cacheKey: {$key} has expired.", false); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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} |
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/** |
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* Gets all items in a specific namespace. |
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* @param string $namespace |
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* @return array |
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*/ |
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public function getAll(string $namespace = '') |
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{ |
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$results = []; |
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foreach ($this->arrayStore as $key => $data) { |
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if (strpos($key, $namespace . ':') === 0 || empty($namespace)) { |
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$results[$key] = $this->serialize($data['cacheData'], false); |
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} |
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} |
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return $results; |
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} |
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/** |
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* Retrieves multiple cache items by their keys. |
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* |
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* @param array $cacheKeys |
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* @param string $namespace |
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* @param string|int $ttl |
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* @return array |
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*/ |
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public function getMany(array $cacheKeys, string $namespace = '', string|int $ttl = 3600) |
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{ |
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$results = []; |
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foreach ($cacheKeys as $cacheKey) { |
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$results[$cacheKey] = $this->getCache($cacheKey, $namespace, $ttl); |
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} |
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return $results; |
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} |
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/** |
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* Checks if a cache item exists. |
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* |
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* @param string $cacheKey |
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* @param string $namespace |
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* @return bool |
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*/ |
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public function has(string $cacheKey, string $namespace = '') |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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return isset($this->arrayStore[$arrayStoreKey]) && time() < $this->arrayStore[$arrayStoreKey]['expirationTime']; |
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} |
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/** |
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* Increments a cache item by a specified amount. |
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* |
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* @param string $cacheKey |
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* @param int $amount |
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* @param string $namespace |
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* @return bool |
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*/ |
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public function increment(string $cacheKey, int $amount = 1, string $namespace = '') |
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{ |
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$cacheData = $this->getCache($cacheKey, $namespace); |
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if(!empty($cacheData) && is_numeric($cacheData)) { |
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$this->putCache($cacheKey, (int)($cacheData + $amount), $namespace); |
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$this->setMessage($this->getMessage(), $this->isSuccess()); |
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return true; |
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} |
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return false; |
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} |
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/** |
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* Checks if the operation was successful. |
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* |
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* @return boolean |
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*/ |
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public function isSuccess() |
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{ |
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return $this->success; |
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} |
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/** |
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* Gets the last message. |
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* |
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* @return string |
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*/ |
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public function getMessage() |
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{ |
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return $this->message; |
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} |
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/** |
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* Stores an item in the cache with a specific TTL. |
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* |
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* @param string $cacheKey |
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* @param mixed $cacheData |
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* @param string $namespace |
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* @param int|string $ttl |
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* @return bool |
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*/ |
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public function putCache(string $cacheKey, mixed $cacheData, string $namespace = '', int|string $ttl = 3600) |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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$this->arrayStore[$arrayStoreKey] = [ |
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'cacheData' => serialize($cacheData), |
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'expirationTime' => time() + $ttl |
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]; |
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$this->setMessage("Cache stored successfully", true); |
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$this->logger->debug("{$this->getMessage()} from Array driver."); |
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return true; |
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} |
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/** |
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* Stores multiple items in the cache in batches. |
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* |
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* @param array $items |
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* @param string $namespace |
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* @param int $batchSize |
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* @return void |
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*/ |
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public function putMany(array $items, string $namespace = '', int $batchSize = 100) |
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{ |
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$chunks = array_chunk($items, $batchSize, true); |
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foreach ($chunks as $chunk) { |
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foreach ($chunk as $key => $data) { |
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$this->putCache($data['cacheKey'], $data['cacheData'], $namespace); |
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} |
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} |
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$this->setMessage("{$this->getMessage()}", $this->isSuccess()); |
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$this->logger->debug("{$this->getMessage()} from Array driver."); |
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} |
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/** |
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* Renews the expiration time of a cache item. |
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* |
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* @param string $cacheKey |
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* @param string|int $ttl |
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* @param string $namespace |
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* @return void |
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*/ |
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public function renewCache(string $cacheKey, int|string $ttl = 3600, string $namespace = '') |
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{ |
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$arrayStoreKey = $this->buildArrayKey($cacheKey, $namespace); |
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if (isset($this->arrayStore[$arrayStoreKey])) { |
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$ttlSeconds = is_numeric($ttl) ? (int) $ttl : strtotime($ttl) - time(); |
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$this->arrayStore[$arrayStoreKey]['expirationTime'] = time() + $ttlSeconds; |
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$this->setMessage("cacheKey: {$cacheKey} renewed successfully", true); |
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$this->logger->debug("{$this->getMessage()} from array driver."); |
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} |
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} |
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/** |
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* Sets a message and its success status. |
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* |
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* @param string $message |
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* @param boolean $success |
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* @return void |
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*/ |
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private function setMessage(string $message, bool $success) |
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{ |
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$this->message = $message; |
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$this->success = $success; |
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} |
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/** |
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* Serializes or unserializes data based on the flag. |
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* |
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* @param mixed $data |
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* @param bool $serialize |
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* @return mixed |
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*/ |
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private function serialize(mixed $data, bool $serialize = true) |
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{ |
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return $serialize ? serialize($data) : unserialize($data); |
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} |
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} |
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