// encode encodes db value from index.
func encode(idx *models.Index) []byte {
// Value format is Stamp:Score:Average
score := util.ToFixed(idx.Score, 5)
average := util.ToFixed(idx.Average, 5)
s := fmt.Sprintf("%d:%s:%s", idx.Stamp, score, average)
return []byte(s)
}
// BuildRepr sets the rule's string repr.
func (rule *Rule) BuildRepr() {
// Lock if shared.
rule.Lock()
defer rule.Unlock()
// Repr
var parts []string
if rule.TrendUp && rule.ThresholdMax == 0 {
parts = append(parts, "trend ↑")
}
if rule.TrendUp && rule.ThresholdMax != 0 {
s := fmt.Sprintf("(trend ↑ && value >= %s)", util.ToFixed(rule.ThresholdMax, 3))
parts = append(parts, s)
}
if !rule.TrendUp && rule.ThresholdMax != 0 {
s := fmt.Sprintf("value >= %s", util.ToFixed(rule.ThresholdMax, 3))
parts = append(parts, s)
}
if rule.TrendDown && rule.ThresholdMin == 0 {
parts = append(parts, "trend ↓")
}
if rule.TrendDown && rule.ThresholdMin != 0 {
s := fmt.Sprintf("(trend ↓ && value <= %s)", util.ToFixed(rule.ThresholdMin, 3))
parts = append(parts, s)
}
if !rule.TrendDown && rule.ThresholdMin != 0 {
s := fmt.Sprintf("value <= %s", util.ToFixed(rule.ThresholdMin, 3))
parts = append(parts, s)
}
rule.Repr = strings.Join(parts, " || ")
}
// encodeValue encodes state value.
func (db *DB) encodeValue(s *models.State) []byte {
// Value format is Average:StdDev:Count
average := util.ToFixed(s.Average, 5)
stddev := util.ToFixed(s.StdDev, 5)
value := fmt.Sprintf("%s:%s:%d", average, stddev, s.Count)
return []byte(value)
}
// encodeValue encodes db value from metric.
func encodeValue(m *models.Metric) []byte {
// Value format is Value:Score:Average.
value := util.ToFixed(m.Value, 5)
score := util.ToFixed(m.Score, 5)
average := util.ToFixed(m.Average, 5)
s := fmt.Sprintf("%s:%s:%s", value, score, average)
return []byte(s)
}