/**
* OpeС‚s and creates XML DOM tree.
*
* Sets error for YMLParser if cannot open file or xml is invalid
*
* @param string $filename Path to file
*
* @throws \Exception Throws exception if file doesn't exist or its size = 0
*
* @return bool
*/
public function open($filename)
{
if (file_exists($filename) === false || filesize($filename) === 0) {
throw new \Exception("File: {$filename} does not exist or empty.");
}
return $this->driver->open($filename);
}
/**
* @param array $parameters
* @throws Exception\InvalidArgumentException
* @return Platform\PlatformInterface
*/
protected function createPlatform($parameters)
{
if (isset($parameters['platform'])) {
$platformName = $parameters['platform'];
} elseif ($this->driver instanceof Driver\DriverInterface) {
$platformName = $this->driver->getDatabasePlatformName(Driver\DriverInterface::NAME_FORMAT_CAMELCASE);
} else {
throw new Exception\InvalidArgumentException('A platform could not be determined from the provided configuration');
}
$options = isset($parameters['platform_options']) ? $parameters['platform_options'] : array();
switch ($platformName) {
case 'Mysql':
return new Platform\Mysql($options);
default:
return new Platform\Sql92($options);
}
}