func (format Format) unmarshalTime(field string) func([]byte) (time.Time, error) {
switch format {
case "json":
return func(msg []byte) (time.Time, error) {
m := make(map[string]interface{})
if err := json.Unmarshal(msg, &m); err != nil {
return time.Time{}, err
}
timeField, _ := m[field].(string)
return parseTime(timeField)
}
case "url":
return func(msg []byte) (time.Time, error) {
values, err := url.ParseQuery(string(msg))
if err != nil {
return time.Time{}, err
}
return parseTime(values.Get(field))
}
case "msgpack":
return func(msg []byte) (time.Time, error) {
m := make(map[string]interface{})
if err := msgpack.Unmarshal(msg, &m); err != nil {
return time.Time{}, err
}
m = hexid.Restore(m).(map[string]interface{})
return parseTime(m[field])
}
}
return nil
}
func (format Format) Sprint(value []byte) (string, error) {
switch format {
case MsgPackFormat:
m := make(map[string]interface{})
if err := msgpack.Unmarshal(value, &m); err != nil {
break
}
buf, err := json.Marshal(hexid.Restore(m))
if err != nil {
return "", fmt.Errorf("fail to marshal %#v: %s", m, err.Error())
}
return string(buf), nil
}
return string(value), nil
}
