influxdb/notification/status.go

104 lines
2.1 KiB
Go

package notification
import (
"encoding/json"
"strings"
"github.com/influxdata/influxdb"
)
// StatusRule includes parametes of status rules.
type StatusRule struct {
CurrentLevel LevelRule `json:"currentLevel"`
PreviousLevel *LevelRule `json:"previousLevel"`
// Alert when >= Count per Period
Count int `json:"count"`
Period influxdb.Duration `json:"period"`
}
// LevelRule is a pair of level + operation.
type LevelRule struct {
CheckLevel CheckLevel `json:"level"`
Operation StatusOperation `json:"operation"`
}
// StatusOperation is either equal or notequal
type StatusOperation bool
// MarshalJSON implements json.Marshaler interface.
func (op StatusOperation) MarshalJSON() ([]byte, error) {
if op {
return json.Marshal("equal")
}
return json.Marshal("notequal")
}
// UnmarshalJSON implements json.Unmarshaler interface.
func (op *StatusOperation) UnmarshalJSON(b []byte) error {
var ss string
if err := json.Unmarshal(b, &ss); err != nil {
return err
}
*op = (ss == "equal")
return nil
}
// CheckLevel is the enum value of status levels.
type CheckLevel int
// consts of CheckStatusLevel
const (
Unknown CheckLevel = iota
Ok
Info
Warn
Critical
)
var checkLevels = []string{
"UNKNOWN",
"OK",
"INFO",
"WARN",
"CRIT",
}
var checkLevelMaps = map[string]CheckLevel{
"UNKNOWN": Unknown,
"OK": Ok,
"INFO": Info,
"WARN": Warn,
"CRIT": Critical,
}
// MarshalJSON implements json.Marshaller.
func (cl CheckLevel) MarshalJSON() ([]byte, error) {
return json.Marshal(cl.String())
}
// UnmarshalJSON implements json.Unmarshaller.
func (cl *CheckLevel) UnmarshalJSON(b []byte) error {
var ss string
if err := json.Unmarshal(b, &ss); err != nil {
return err
}
*cl = ParseCheckLevel(strings.ToUpper(ss))
return nil
}
// String returns the string value, invalid CheckLevel will return Unknown.
func (cl CheckLevel) String() string {
if cl < Unknown || cl > Critical {
cl = Unknown
}
return checkLevels[cl]
}
// ParseCheckLevel will parse the string to checkLevel
func ParseCheckLevel(s string) CheckLevel {
if cl, ok := checkLevelMaps[s]; ok {
return cl
}
return Unknown
}