/**
* Helper for service initialization. Usually called via getters
*
* @param string $service Name of service to load
*/
private function load_provider($provider)
{
$interface_file = self::get_component_path('midgardmvc_core') . "/providers/{$provider}.php";
if (!file_exists($interface_file)) {
throw new InvalidArgumentException("Provider {$provider} not installed");
}
if (!$this->configuration->exists("providers_{$provider}")) {
throw new Exception("No implementation defined for provider {$provider}");
}
$provider_implementation = $this->configuration->get("providers_{$provider}");
if (strpos($provider_implementation, '_') === false) {
// Built-in provider implementation called using the shorthand notation
$provider_implementation = "midgardmvc_core_providers_{$provider}_{$provider_implementation}";
}
$this->{$provider} = new $provider_implementation();
}
