76 lines
2.2 KiB
Go
76 lines
2.2 KiB
Go
// Licensed to Elasticsearch B.V. under one or more contributor
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// license agreements. See the NOTICE file distributed with
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// this work for additional information regarding copyright
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// ownership. Elasticsearch B.V. licenses this file to you under
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// the Apache License, Version 2.0 (the "License"); you may
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// not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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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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