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<?php |
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namespace ByJG\Cache\Psr16; |
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use Psr\Log\NullLogger; |
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class RedisCacheEngine extends BaseCacheEngine |
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{ |
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/** |
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* |
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* @var \Redis |
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*/ |
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protected $redis = null; |
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protected $logger = null; |
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protected $server = null; |
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protected $password = null; |
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View Code Duplication |
public function __construct($server = null, $password = null, $logger = null) |
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{ |
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$this->server = $server; |
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if (is_null($server)) { |
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$this->server = '127.0.0.1:6379'; |
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} |
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$this->password = $password; |
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$this->logger = $logger; |
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if (is_null($logger)) { |
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$this->logger = new NullLogger(); |
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} |
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} |
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protected function lazyLoadRedisServer() |
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{ |
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if (is_null($this->redis)) { |
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$this->redis = new \Redis(); |
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$data = explode(":", $this->server); |
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$this->redis->connect($data[0], isset($data[1]) ? $data[1] : 6379); |
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if (!empty($this->password)) { |
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$this->redis->auth($this->password); |
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} |
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$this->redis->setOption(\Redis::OPT_SERIALIZER, \Redis::SERIALIZER_NONE); |
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$this->redis->info('redis_version'); |
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} |
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} |
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protected function fixKey($key) { |
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return "cache:$key"; |
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} |
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/** |
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* @param string $key The object KEY |
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* @param int $default IGNORED IN MEMCACHED. |
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* @return mixed Description |
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*/ |
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View Code Duplication |
public function get($key, $default = null) |
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{ |
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$this->lazyLoadRedisServer(); |
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$value = $this->redis->get($this->fixKey($key)); |
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$this->logger->info("[Redis Cache] Get '$key' result "); |
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return ($value === false ? $default : unserialize($value)); |
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} |
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/** |
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* @param string $key The object Key |
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* @param object $value The object to be cached |
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* @param int $ttl The time to live in seconds of this objects |
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* @return bool If the object is successfully posted |
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*/ |
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View Code Duplication |
public function set($key, $value, $ttl = null) |
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{ |
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$this->lazyLoadRedisServer(); |
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$this->redis->set($this->fixKey($key), serialize($value), $ttl); |
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$this->logger->info("[Redis Cache] Set '$key' result "); |
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return true; |
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} |
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public function delete($key) |
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{ |
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$this->lazyLoadRedisServer(); |
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$this->redis->delete($this->fixKey($key)); |
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return true; |
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} |
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public function clear() |
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{ |
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$keys = $this->redis->keys('cache:*'); |
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foreach ((array)$keys as $key) { |
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if (preg_match('/^cache\:(?<key>.*)/', $key, $matches)) { |
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$this->delete($matches['key']); |
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} |
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} |
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} |
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public function has($key) |
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{ |
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return $this->redis->exists($this->fixKey($key)); |
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} |
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public function isAvailable() |
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{ |
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if (!class_exists('\Redis')) { |
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return false; |
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} |
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try { |
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$this->lazyLoadRedisServer(); |
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return true; |
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} catch (\Exception $ex) { |
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return false; |
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} |
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} |
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} |
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Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.