/**
* {@inheritDoc}
*/
public function setDriver(DriverInterface $driver, $fallback = true)
{
// ping first
if ($driver->ping()) {
$this->driver = $driver;
return;
}
// fallback
if ($fallback) {
// set to fallback driver
$this->driver = $driver->getFallback();
// issue warning
trigger_error(Message::get(Message::CACHE_FALLBACK_DRIVER, get_class($driver), get_class($this->driver)), E_USER_WARNING);
} else {
throw new InvalidArgumentException(Message::get(Message::CACHE_FAIL_DRIVER, get_class($driver)), Message::CACHE_FAIL_DRIVER);
}
}
/**
* Construct with configs/settings
*
* @param DriverInterface $frontDriver
* @param DriverInterface $backDriver
* @param array $configs object configs
* @access public
*/
public function __construct(DriverInterface $frontDriver, DriverInterface $backDriver, array $configs = [])
{
// set configs
parent::__construct($configs);
// front driver, may use fallback
if ($frontDriver->ping()) {
$this->front = $frontDriver;
} else {
// set error
$this->setError($frontDriver->getError(), $frontDriver->getErrorCode());
$this->front = $frontDriver->getFallback();
}
// back driver, may use fallback
if ($backDriver->ping()) {
$this->back = $backDriver;
} else {
// set error
$this->setError($backDriver->getError(), $backDriver->getErrorCode());
$this->back = $backDriver->getFallback();
}
// default tester, will write item to both front/back cache
if (!is_callable($this->tester)) {
$this->tester = function () {
return true;
};
}
}
