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<?php |
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namespace Ez\DbLinker\Driver; |
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use Ez\DbLinker\Driver\Connection\MasterSlavesConnection; |
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use Cache\Adapter\Apcu\ApcuCachePool; |
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use Ez\DbLinker\Cache; |
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trait MasterSlavesDriver |
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{ |
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private $cache; |
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private $cacheDefaultTtl = 60; |
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/** |
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* Attempts to create a connection with the database. |
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* |
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* @param array $params All connection parameters passed by the user. |
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* @param string|null $username The username to use when connecting. |
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* @param string|null $password The password to use when connecting. |
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* @param array $driverOptions The driver options to use when connecting. |
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* |
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* @return \Doctrine\DBAL\Driver\Connection The database connection. |
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*/ |
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public function connect(array $params, $username = null, $password = null, array $driverOptions = []) { |
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$cacheDriver = array_key_exists("config_cache", $driverOptions) ? $driverOptions["config_cache"] : null; |
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$configParams = array_intersect_key($params, array_flip(["master", "slaves"])); |
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$key = "dblinker.master-slave-config.".hash("sha256", serialize($configParams)); |
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$config = null; |
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// default cache, disable it with $cache = false |
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$cache = new Cache($cacheDriver); |
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if ($cache->hasCache()) { |
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$config = $cache->getCacheItem($key); |
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} |
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if ($config === null) { |
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$config = $this->config($configParams, $driverOptions); |
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} |
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if ($cache->hasCache()) { |
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$cache->setCacheItem($key, $config, 60); |
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} |
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return new MasterSlavesConnection($config["master"], $config["slaves"], $cache); |
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} |
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private function config(array $params, array $driverOptions) |
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{ |
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$driverKey = array_key_exists('driverClass', $params['master']) ? 'driverClass' : 'driver'; |
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$driverValue = $params['master'][$driverKey]; |
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$slaves = []; |
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foreach ($params['slaves'] as $slaveParams) { |
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$slaveParams[$driverKey] = $driverValue; |
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$slaves[] = $slaveParams; |
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} |
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$config = [ |
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"master" => $params["master"], |
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"slaves" => $slaves, |
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]; |
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if (!array_key_exists("config_transform", $driverOptions)) { |
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return $config; |
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} |
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assert(is_callable($driverOptions["config_transform"])); |
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return $driverOptions["config_transform"]($config); |
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} |
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} |
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ezweb /
dblinker
