/**
* @param string $file
* @return array
*/
protected function loadFile($file)
{
if (!class_exists('Symfony\\Component\\Yaml\\Parser')) {
throw new \RuntimeException('Unable to load YAML config files as the Symfony Yaml Component is not installed.');
}
if (!stream_is_local($file)) {
throw new \InvalidArgumentException(sprintf('This is not a local file "%s".', $file));
}
if (!file_exists($file)) {
throw new \InvalidArgumentException(sprintf('The service file "%s" is not valid.', $file));
}
if (null === $this->yamlParser) {
$this->yamlParser = new Parser();
}
try {
$config = $this->yamlParser->parse(file_get_contents($file));
if (!is_array($config)) {
throw new \InvalidArgumentException(sprintf('The contents of the file "%s" is not an array.', $file));
}
} catch (ParseException $e) {
throw new \InvalidArgumentException(sprintf('The file "%s" does not contain valid YAML.', $file), 0, $e);
}
$this->app->parseParameters($config);
return $config;
}
