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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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* Apcu |
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* @author Ryuichi Tanaka |
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* @since 2015/07/05 |
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* @version 0.7 |
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*/ |
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class Apcu 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 = $this->cacheContainer->cachePrefix . '.'; |
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if (!empty($this->cacheContainer->classPrefix)) { |
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$this->cachePrefix .= $this->cacheContainer->classPrefix . '.'; |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function add($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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$key = $this->cachePrefix . $key; |
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$result = $overwrite ? $this->cacheContainer->driver->delegate("apcu_store", [$key, $value, $ttl]) : |
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$this->cacheContainer->driver->delegate("apcu_add", [$key, $value, $ttl]); |
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$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 (!$this->isAvailableCacheLibrary()) { |
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return null; |
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} |
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$key = $this->cachePrefix . $key; |
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$value = $this->cacheContainer->driver->delegate("apcu_fetch", [$key]); |
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if ($value !== false) { |
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$this->logger->info("Execute cache read: " . $key); |
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} else { |
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$this->logger->warn("Failed to read cache: " . $key); |
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$value = null; |
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} |
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return $value; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function delete($key): bool |
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{ |
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1 |
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if (!$this->isAvailableCacheLibrary()) { |
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return false; |
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} |
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$key = $this->cachePrefix . $key; |
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if ($this->cacheContainer->driver->delegate("apcu_delete", [$key])) { |
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$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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1 |
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if (class_exists('\APCUIterator')) { |
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$obj = new \APCUIterator('/^' . $this->cachePrefix . '/', APC_ITER_KEY); |
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if ($this->cacheContainer->driver->delegate("apcu_delete", [$obj])) { |
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$this->logger->info("Execute all cache cleared: " . $this->cachePrefix . "*"); |
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return true; |
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} |
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} elseif ($this->cacheContainer->driver->delegate("apcu_clear_cache")) { |
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$this->logger->info("Execute all cache cleared: " . $this->cachePrefix . "*"); |
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return true; |
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} |
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$this->logger->warn("Failed to clear all cache: " . $this->cachePrefix . "*"); |
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return false; |
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} |
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/** |
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* キャッシュライブラリが使用可能か検査する |
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* @return bool 使用可能でtrue |
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*/ |
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4 |
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private function isAvailableCacheLibrary(): bool |
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{ |
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4 |
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if ($this->cacheContainer->available) { |
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return true; |
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} |
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$this->logger->warn("APCu cache library is unavailable."); |
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return false; |
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} |
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} |
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webstream-framework /
Cache
