go-ceph/cephfs/admin/timestamp.go
John Mulligan ed23d71ff8 cephfs admin: add TimeStamp type for JSON unmarshaling
The date & time format used by ceph differs from the default used by Go
for time.Time types. Define a new type, embedding time.Time, that can
parse and expressing date+time strings the ceph way.

Signed-off-by: John Mulligan <jmulligan@redhat.com>
2020-09-28 13:16:34 -04:00

40 lines
876 B
Go

// +build !luminous,!mimic
package admin
import (
"encoding/json"
"time"
)
// golang's date parsing approach is rather bizarre
var cephTSLayout = "2006-01-02 15:04:05"
// TimeStamp abstracts some of the details about date+time stamps
// returned by ceph via JSON.
type TimeStamp struct {
time.Time
}
// String returns a string representing the date+time as presented
// by ceph.
func (ts TimeStamp) String() string {
return ts.Format(cephTSLayout)
}
// UnmarshalJSON implements the json Unmarshaler interface.
func (ts *TimeStamp) UnmarshalJSON(b []byte) error {
var raw string
if err := json.Unmarshal(b, &raw); err != nil {
return err
}
// AFAICT, ceph always returns the time in UTC so Parse, as opposed to
// ParseInLocation, is appropriate here.
t, err := time.Parse(cephTSLayout, raw)
if err != nil {
return err
}
*ts = TimeStamp{t}
return nil
}