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60 lines
1.5 KiB
Go
60 lines
1.5 KiB
Go
package common
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import (
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"encoding/binary"
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"encoding/json"
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"errors"
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"hash"
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"time"
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)
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// TsLayout is the layout to be used in the timestamp marshaling/unmarshaling everywhere.
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// The timezone must always be UTC.
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const TsLayout = "2006-01-02T15:04:05.000Z"
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// Time is an abstraction for the time.Time type
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type Time time.Time
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// MarshalJSON implements json.Marshaler interface.
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// The time is a quoted string in the JsTsLayout format.
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func (t Time) MarshalJSON() ([]byte, error) {
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return json.Marshal(time.Time(t).UTC().Format(TsLayout))
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}
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// UnmarshalJSON implements js.Unmarshaler interface.
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// The time is expected to be a quoted string in TsLayout
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// format.
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func (t *Time) UnmarshalJSON(data []byte) (err error) {
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if data[0] != []byte(`"`)[0] || data[len(data)-1] != []byte(`"`)[0] {
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return errors.New("Not quoted")
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}
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*t, err = ParseTime(string(data[1 : len(data)-1]))
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return
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}
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func (t Time) Hash32(h hash.Hash32) error {
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err := binary.Write(h, binary.LittleEndian, time.Time(t).UnixNano())
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return err
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}
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// ParseTime parses a time in the TsLayout format.
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func ParseTime(timespec string) (Time, error) {
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t, err := time.Parse(TsLayout, timespec)
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return Time(t), err
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}
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func (t Time) String() string {
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return time.Time(t).Format(TsLayout)
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}
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// MustParseTime is a convenience equivalent of the ParseTime function
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// that panics in case of errors.
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func MustParseTime(timespec string) Time {
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ts, err := ParseTime(timespec)
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if err != nil {
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panic(err)
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}
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return ts
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}
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