php-cache / adapter-bundle

        $dsn = $this->getDsn();

        if (empty($dsn)) {

            if (false === $client->connect($config['host'], $config['port'])) {

                throw new ConnectException(sprintf('Could not connect to Redis database on "%s:%s".', $config['host'], $config['port']));

            }

        } else {

            if (false === $client->connect($dsn->getFirstHost(), $dsn->getFirstPort())) {

                throw new ConnectException(sprintf('Could not connect to Redis database on "%s:%s".', $dsn->getFirstHost(), $dsn->getFirstPort()));

            $config['database'] = $dsn->getDatabase();

        }

        if (null !== $config['database'] && false === $client->select($config['database'])) {

            throw new ConnectException(sprintf('Could not select Redis database with index "%s".', $config['database']));

        }

        $pool = new RedisCachePool($client);