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<?php |
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/** |
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* Author: Nil Portugués Calderó <[email protected]> |
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* Date: 4/3/15 |
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* Time: 1:17 PM |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace NilPortugues\Cache\Adapter; |
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use NilPortugues\Cache\CacheAdapter; |
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/** |
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* Class Adapter |
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* @package NilPortugues\Cache\Adapter |
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*/ |
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abstract class Adapter implements CacheAdapter |
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{ |
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/** |
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* @var bool |
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*/ |
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protected $hit = false; |
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/** |
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* @var null|int |
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*/ |
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protected $ttl; |
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/** |
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* @var CacheAdapter|null |
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*/ |
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protected $nextAdapter; |
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/** |
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* Check if value was found in the cache or not. |
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* |
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* @return bool |
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*/ |
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public function isHit() |
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{ |
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return $this->hit; |
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} |
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/** |
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* Allows to set a default ttl value if none is provided for set() |
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* |
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* @param int $ttl |
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* |
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* @throws \InvalidArgumentException |
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* @return bool|mixed |
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*/ |
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public function defaultTtl($ttl) |
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{ |
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if (false === \is_numeric($ttl) || $ttl<0) { |
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throw new \InvalidArgumentException('A TTL value must be a positive integer value'); |
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} |
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$this->ttl = (int)$ttl; |
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} |
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/** |
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* @param $ttl |
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* |
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* @return int|null |
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*/ |
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protected function fromDefaultTtl($ttl) |
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{ |
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$ttl = (int) $ttl; |
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if (0 == $ttl && null !== $this->ttl) { |
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$ttl = $this->ttl; |
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} |
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return $ttl; |
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} |
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/** |
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* @param $value |
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* |
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* @return string |
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*/ |
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protected function storageDataStructure($value) |
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{ |
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return \serialize($value); |
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} |
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/** |
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* @param $value |
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* |
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* @return mixed |
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*/ |
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protected function restoreDataStructure($value) |
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{ |
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return \unserialize($value); |
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} |
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/** |
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* |
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*/ |
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protected function clearChain() |
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{ |
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InMemoryAdapter::getInstance()->clear(); |
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if (null !== $this->nextAdapter) { |
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$this->nextAdapter->clear(); |
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} |
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} |
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/** |
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* @param $key |
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* @param $value |
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* @param $ttl |
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*/ |
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protected function setChain($key, $value, $ttl) |
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{ |
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InMemoryAdapter::getInstance()->set($key, $value, $ttl); |
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if (null !== $this->nextAdapter) { |
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$this->nextAdapter->set($key, $value, $ttl); |
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} |
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} |
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/** |
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* |
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*/ |
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protected function dropChain() |
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{ |
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InMemoryAdapter::getInstance()->drop(); |
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if (null !== $this->nextAdapter) { |
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$this->nextAdapter->drop(); |
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} |
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} |
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/** |
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* @param $key |
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*/ |
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protected function deleteChain($key) |
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{ |
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InMemoryAdapter::getInstance()->delete($key); |
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if (null !== $this->nextAdapter) { |
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$this->nextAdapter->delete($key); |
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} |
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} |
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} |
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nilportugues /
cache
