/**
* {@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);
}
}
/**
* One end ping ok is ok
*
* {@inheritDoc}
*/
public function ping()
{
return $this->front->ping() || $this->back->ping();
}
