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<?php namespace CMSFactory\Services\Cache; |
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use Doctrine\Common\Cache\Cache; |
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use Memcache; |
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use Memcached; |
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use Symfony\Component\DependencyInjection\ContainerAwareTrait; |
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use Symfony\Component\DependencyInjection\Exception\InvalidArgumentException; |
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use Symfony\Component\DependencyInjection\Exception\ServiceCircularReferenceException; |
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use Symfony\Component\DependencyInjection\Exception\ServiceNotFoundException; |
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class CacheFactory |
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{ |
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use ContainerAwareTrait; |
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/** |
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* @return Cache |
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* @throws ServiceNotFoundException |
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* @throws InvalidArgumentException |
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* @throws ServiceCircularReferenceException |
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*/ |
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public function createCacheProvider() { |
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foreach ($this->container->getParameter('cache.provider.priority') as $provider) { |
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if ($this->checkRequirements($provider)) { |
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return $this->container->get($provider); |
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} |
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} |
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} |
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/** |
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* @param string $provider |
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* @return bool |
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* @throws ServiceNotFoundException |
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* @throws ServiceCircularReferenceException |
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* @throws InvalidArgumentException |
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*/ |
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private function checkRequirements($provider) { |
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switch ($provider) { |
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case 'cache.provider.memcache': |
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return $this->checkMemcache(); |
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case 'cache.provider.memcached': |
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return $this->checkMemcached(); |
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case 'cache.provider.filesystem': |
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return $this->checkFilesystem(); |
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case 'cache.provider.apc': |
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return $this->checkApc(); |
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default: |
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return false; |
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} |
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} |
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/** |
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* @return bool |
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*/ |
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private function checkApc() { |
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return extension_loaded('apc') && ini_get('apc.enabled'); |
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} |
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/** |
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* @return bool |
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* @throws ServiceNotFoundException |
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* @throws InvalidArgumentException |
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* @throws ServiceCircularReferenceException |
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*/ |
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private function checkMemcache() { |
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/** @var Memcache $memcache */ |
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$memcache = $this->container->get('memcache'); |
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$host = $this->container->getParameter('memcached.host'); |
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return extension_loaded('memcache') && class_exists('Memcache') && $memcache->getserverstatus($host) !== 0; |
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} |
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/** |
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* @return bool |
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* @throws ServiceNotFoundException |
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* @throws ServiceCircularReferenceException |
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* @throws InvalidArgumentException |
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*/ |
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private function checkMemcached() { |
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/** @var Memcached $memcached */ |
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$memcached = $this->container->get('memcached'); |
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$host = $this->container->getParameter('memcached.host'); |
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$port = $this->container->getParameter('memcached.port'); |
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$server = "{$host}:{$port}"; |
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$stats = $memcached->getStats(); |
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$connected = array_key_exists($server, $stats) && $stats[$server]['pid'] > 0; |
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return extension_loaded('memcached') && class_exists('Memcached') && $connected; |
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} |
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/** |
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* @return bool |
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* @throws InvalidArgumentException |
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99
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*/ |
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private function checkFilesystem() { |
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$cacheDirectory = $this->container->getParameter('cache.directory'); |
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return file_exists($cacheDirectory) && is_writable($cacheDirectory); |
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105
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} |
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107
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} |
imagecms /
ImageCMS
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