const DataType *ConfigKey::get_data_type() const
{
	const struct sr_config_info *info = sr_config_info_get(id);
	if (!info)
		throw Error(SR_ERR_NA);
	return DataType::get(info->datatype);
}

string ConfigKey::get_identifier() const
{
	const struct sr_config_info *info = sr_config_info_get(id);
	if (!info)
		throw Error(SR_ERR_NA);
	return valid_string(info->id);
}

string ConfigKey::get_description() const
{
	const struct sr_config_info *info = sr_config_info_get(id);
	if (!info)
		throw Error(SR_ERR_NA);
	return valid_string(info->name);
}

const ConfigKey *ConfigKey::get(string identifier)
{
	const struct sr_config_info *info = sr_config_info_name_get(identifier.c_str());
	if (!info)
		throw Error(SR_ERR_ARG);
	return get(info->key);
}

Glib::VariantBase ConfigKey::parse_string(string value) const
{
	GVariant *variant;
	uint64_t p, q;

	switch (get_data_type()->get_id())
	{
		case SR_T_UINT64:
			check(sr_parse_sizestring(value.c_str(), &p));
			variant = g_variant_new_uint64(p);
			break;
		case SR_T_STRING:
			variant = g_variant_new_string(value.c_str());
			break;
		case SR_T_BOOL:
			variant = g_variant_new_boolean(sr_parse_boolstring(value.c_str()));
			break;
		case SR_T_FLOAT:
			variant = g_variant_new_double(stod(value));
			break;
		case SR_T_RATIONAL_PERIOD:
			check(sr_parse_period(value.c_str(), &p, &q));
			variant = g_variant_new("(tt)", p, q);
			break;
		case SR_T_RATIONAL_VOLT:
			check(sr_parse_voltage(value.c_str(), &p, &q));
			variant = g_variant_new("(tt)", p, q);
			break;
		case SR_T_INT32:
			variant = g_variant_new_int32(stoi(value));
			break;
		default:
			throw Error(SR_ERR_BUG);
	}

	return Glib::VariantBase(variant, true);
}