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<?php |
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namespace WebStream\Cache\Driver; |
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use WebStream\DI\Injector; |
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use WebStream\Container\Container; |
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/** |
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* Redis |
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* @author Ryuichi Tanaka |
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* @since 2015/07/09 |
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* @version 0.7 |
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*/ |
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class Redis implements ICache |
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{ |
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use injector; |
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/** |
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* @var Container キャッシュ依存コンテナ |
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*/ |
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private $cacheContainer; |
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/** |
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* @var string キャッシュ接頭辞 |
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*/ |
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private $cachePrefix; |
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/** |
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* {@inheritdoc} |
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*/ |
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public function __construct(Container $cacheContainer) |
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{ |
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$this->cacheContainer = $cacheContainer; |
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$this->cachePrefix = $this->cacheContainer->cachePrefix . '.' . $this->cacheContainer->classPrefix . '.'; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function add($key, $value, $ttl = 0, $overwrite = false): bool |
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{ |
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if (!$this->isAvailableCacheLibrary()) { |
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return false; |
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} |
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if (is_array($value)) { |
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$value = json_encode($value); |
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} |
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$result = false; |
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if ($ttl > 0) { |
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if ($overwrite) { |
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$result = $this->cacheContainer->driver->setEx($key, $ttl, $value); |
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} else { |
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$result = $this->cacheContainer->driver->set($key, $value, ['nx', 'ex' => $ttl]); |
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} |
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} else { |
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if ($overwrite) { |
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$result = $this->cacheContainer->driver->set($key, $value); |
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} else { |
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$result = $this->cacheContainer->driver->setNx($key, $value); |
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} |
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} |
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$this->logger->info("Execute cache save: " . $key); |
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return $result; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function get($key) |
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{ |
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if (!$this->isAvailableCacheLibrary()) { |
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return null; |
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} |
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$result = $this->cacheContainer->driver->get($key); |
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$this->logger->info("Execute cache read: " . $key); |
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if ($result !== false) { |
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$this->logger->info("Execute cache read: " . $key); |
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} else { |
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$this->logger->warn("Failed to read cache: " . $key); |
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$result = null; |
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} |
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return $result; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function delete($key): bool |
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{ |
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if (!$this->isAvailableCacheLibrary()) { |
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return false; |
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} |
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if ($this->cacheContainer->driver->delete($key) > 0) { |
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$this->logger->info("Execute cache cleared: " . $key); |
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return true; |
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} else { |
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$this->logger->warn("Failed to clear cache: " . $key); |
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return false; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function clear(): bool |
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{ |
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if (!$this->isAvailableCacheLibrary()) { |
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return false; |
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} |
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$it = null; |
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$result = 1; |
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$this->cacheContainer->driver->setOption($this->cacheContainer->redisOptPrefix, ""); |
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while ($keys = $this->cacheContainer->driver->scan($it, "*")) { |
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$result *= $this->cacheContainer->driver->delete($keys); |
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} |
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$this->cacheContainer->driver->setOption($this->cacheContainer->redisOptPrefix, $this->cachePrefix); |
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if ($result > 0) { |
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$this->logger->info("Execute all cache cleared: " . $this->cachePrefix . "*"); |
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return true; |
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} else { |
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$this->logger->warn("Failed to clear all cache: " . $this->cachePrefix . "*"); |
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return false; |
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} |
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} |
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/** |
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* キャッシュライブラリが使用可能か検査する |
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* @return bool 使用可能でtrue |
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*/ |
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private function isAvailableCacheLibrary(): bool |
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{ |
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if ($this->cacheContainer->available) { |
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return true; |
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} |
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$this->logger->warn("Redis cache library is unavailable."); |
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return false; |
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} |
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} |
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webstream-framework /
WebStream
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