func ReadMetrics(r io.Reader) (*Metrics, error) {
	data, err := ioutil.ReadAll(r)
	if err != nil {
		return nil, err
	}
	var metrics Metrics
	if err := goyaml.Unmarshal(data, &metrics); err != nil {
		return nil, err
	}
	if metrics.Metrics == nil {
		return &metrics, nil
	}
	for name, metric := range metrics.Metrics {
		if IsBuiltinMetric(name) {
			if metric.Type != MetricType("") || metric.Description != "" {
				return nil, fmt.Errorf("metric %q is using a prefix reserved for built-in metrics: it should not have type or description specification", name)
			}
			continue
		}
		switch metric.Type {
		case MetricTypeGauge, MetricTypeAbsolute:
		default:
			return nil, fmt.Errorf("invalid metrics declaration: metric %q has unknown type %q", name, metric.Type)
		}
		if metric.Description == "" {
			return nil, fmt.Errorf("invalid metrics declaration: metric %q lacks description", name)
		}
	}
	return &metrics, nil
}
// ReadMetrics reads a MetricsDeclaration in YAML format.
ReadMetrics reads a MetricsDeclaration in YAML format.
// ReadMetrics reads a MetricsDeclaration in YAML format .
func ReadMetrics(r io.Reader) (*Metrics, error) {
	data, err := ioutil.ReadAll(r)
	if err != nil {
		return nil, err
	}
	var metrics Metrics
	if err := goyaml.Unmarshal(data, &metrics); err != nil {
		return nil, err
	}
	if metrics.Metrics == nil {
		return &metrics, nil
	}
	for name, metric := range metrics.Metrics {
		if IsBuiltinMetric(name) {
			if metric.Type != MetricType("") || metric.Description != "" {
				return nil, fmt.Errorf("metric %q is using a prefix reserved for built-in metrics: it should not have type or description specification", name)
			}
			continue
		}
		switch metric.Type {
		case MetricTypeGauge, MetricTypeAbsolute:
		default:
			return nil, fmt.Errorf("invalid metrics declaration: metric %q has unknown type %q", name, metric.Type)
		}
		if metric.Description == "" {
			return nil, fmt.Errorf("invalid metrics declaration: metric %q lacks description", name)
		}
	}
	return &metrics, nil
}
func ReadMetrics ( r io . Reader ) ( * Metrics , error ) { data , err := ioutil . ReadAll ( r ) if err != nil { return nil , err } var metrics Metrics if err := goyaml . Unmarshal ( data , & metrics ) ; err != nil { return nil , err } if metrics . Metrics == nil { return & metrics , nil } for name , metric := range metrics . Metrics { if IsBuiltinMetric ( name ) { if metric . Type != MetricType ( " " ) || metric . Description != " " { return nil , fmt . Errorf ( " " , name ) } continue } switch metric . Type { case MetricTypeGauge , MetricTypeAbsolute : default : return nil , fmt . Errorf ( " " , name , metric . Type ) } if metric . Description == " " { return nil , fmt . Errorf ( " " , name ) } } return & metrics , nil }
ReadMetrics reads a MetricsDeclaration in YAML format.
ReadMetrics reads a MetricsDeclaration in YAML format .