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package level
import (
"encoding/json"
"strings"
)
//go:generate stringer -type=Level -linecomment
var (
_ json.Marshaler = Level(0)
_ json.Unmarshaler = (*Level)(nil)
)
// Level log.
type Level uint32
// available log levels.
const (
Emergency Level = iota // emergency
Alert // alert
Critical // critical
Error // error
Warning // warning
Notice // notice
Info // info
Debug // debug
)
func (l Level) MarshalJSON() ([]byte, error) {
return json.Marshal(l.String())
}
func (l Level) Is(level Level) bool {
return level == l
}
func (l Level) Enabled(level Level) bool {
return l <= level
}
func (l *Level) UnmarshalJSON(in []byte) error {
var v string
if err := json.Unmarshal(in, &v); err != nil {
return err
}
lvl := Parse(v)
*l = lvl
return nil
}
func Parse(lvl string) Level {
switch strings.ToLower(lvl) {
case "debug", "Debug", "DEBUG":
return Debug
case "info", "Info", "INFO":
return Info
case "notice", "Notice", "NOTICE":
return Notice
case "warning", "Warning", "WARNING":
return Warning
case "error", "Error", "ERROR":
return Error
case "critical", "Critical", "CRITICAL":
return Critical
case "alert", "Alert", "ALERT":
return Alert
default:
return Emergency
}
}