forked from xjasonlyu/tun2socks
/
level.go
72 lines (63 loc) · 1.19 KB
/
level.go
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package log
import (
"encoding/json"
"fmt"
"strings"
)
type Level uint32
const (
SilentLevel Level = iota
ErrorLevel
WarnLevel
InfoLevel
DebugLevel
)
// UnmarshalJSON deserialize Level with json
func (level *Level) UnmarshalJSON(data []byte) error {
var lvl string
if err := json.Unmarshal(data, &lvl); err != nil {
return err
}
l, err := ParseLevel(lvl)
if err != nil {
return err
}
*level = l
return nil
}
// MarshalJSON serialize Level with json
func (level Level) MarshalJSON() ([]byte, error) {
return json.Marshal(level.String())
}
func (level Level) String() string {
switch level {
case DebugLevel:
return "debug"
case InfoLevel:
return "info"
case WarnLevel:
return "warning"
case ErrorLevel:
return "error"
case SilentLevel:
return "silent"
default:
return fmt.Sprintf("not a valid level %d", level)
}
}
func ParseLevel(lvl string) (Level, error) {
switch strings.ToLower(lvl) {
case "silent":
return SilentLevel, nil
case "error":
return ErrorLevel, nil
case "warning":
return WarnLevel, nil
case "info":
return InfoLevel, nil
case "debug":
return DebugLevel, nil
default:
return Level(0), fmt.Errorf("not a valid logrus Level: %q", lvl)
}
}