/
timestamp.go
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/
timestamp.go
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// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package apigee
import (
"fmt"
"strconv"
"strings"
"time"
)
// Timestamp represents a time that can be unmarshalled from a JSON string
// formatted as "java time" = milliseconds-since-unix-epoch.
type Timestamp struct {
time.Time
}
// MarshalJSON creates a JSON representation of this Timestamp
func (t Timestamp) MarshalJSON() ([]byte, error) {
ms := t.Time.UnixNano() / 1000000
stamp := fmt.Sprintf("%d", ms)
return []byte(stamp), nil
}
// UnmarshalJSON implements the json.Unmarshaler interface.
// Time is expected in RFC3339 or Unix format.
func (t *Timestamp) UnmarshalJSON(b []byte) error {
ms, err := strconv.ParseInt(strings.TrimSuffix(strings.TrimPrefix(string(b), "\""), "\""), 10, 64)
if err != nil {
return err
}
t.Time = time.Unix(int64(ms/1000), (ms-int64(ms/1000)*1000)*1000000)
return nil
}
func (t Timestamp) String() string {
return fmt.Sprintf("%d", int64(t.Time.UnixNano())/1000000)
}
// Equal reports whether t and u are equal based on time.Equal
func (t Timestamp) Equal(u Timestamp) bool {
return t.Time.Equal(u.Time)
}