/**
* Create a new Closure that resolves to a PDO instance with a specific host or an array of hosts.
*
* @param array $config
* @return \Closure
*/
protected function createPdoResolverWithHosts(array $config)
{
return function () use($config) {
$hosts = is_array($config['host']) ? $config['host'] : [$config['host']];
if (empty($hosts)) {
throw new InvalidArgumentException('Database hosts array is empty.');
}
foreach (Arr::shuffle($hosts) as $key => $host) {
$config['host'] = $host;
try {
return $this->createConnector($config)->connect($config);
} catch (PDOException $e) {
if (count($hosts) - 1 === $key) {
$this->container->make(ExceptionHandler::class)->report($e);
}
}
}
throw $e;
};
}
