mirror of https://github.com/hashicorp/consul
81 lines
2.0 KiB
Go
81 lines
2.0 KiB
Go
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package util
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import (
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"fmt"
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"strconv"
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"time"
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)
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// GetISO8601TimeStamp gets timestamp string in ISO8601 format
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func GetISO8601TimeStamp(ts time.Time) string {
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t := ts.UTC()
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return fmt.Sprintf("%04d-%02d-%02dT%02d:%02d:%02dZ", t.Year(), t.Month(), t.Day(), t.Hour(), t.Minute(), t.Second())
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}
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const formatISO8601 = "2006-01-02T15:04:05Z"
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const jsonFormatISO8601 = `"` + formatISO8601 + `"`
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const formatISO8601withoutSeconds = "2006-01-02T15:04Z"
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const jsonFormatISO8601withoutSeconds = `"` + formatISO8601withoutSeconds + `"`
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// A ISO6801Time represents a time in ISO8601 format
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type ISO6801Time time.Time
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// New constructs a new iso8601.Time instance from an existing
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// time.Time instance. This causes the nanosecond field to be set to
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// 0, and its time zone set to a fixed zone with no offset from UTC
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// (but it is *not* UTC itself).
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func NewISO6801Time(t time.Time) ISO6801Time {
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return ISO6801Time(time.Date(
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t.Year(),
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t.Month(),
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t.Day(),
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t.Hour(),
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t.Minute(),
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t.Second(),
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0,
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time.UTC,
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))
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}
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// IsDefault checks if the time is default
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func (it *ISO6801Time) IsDefault() bool {
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return *it == ISO6801Time{}
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}
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// MarshalJSON serializes the ISO6801Time into JSON string
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func (it ISO6801Time) MarshalJSON() ([]byte, error) {
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return []byte(time.Time(it).Format(jsonFormatISO8601)), nil
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}
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// UnmarshalJSON deserializes the ISO6801Time from JSON string
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func (it *ISO6801Time) UnmarshalJSON(data []byte) error {
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str := string(data)
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if str == "\"\"" || len(data) == 0 {
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return nil
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}
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var t time.Time
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var err error
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if str[0] == '"' {
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t, err = time.ParseInLocation(jsonFormatISO8601, str, time.UTC)
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if err != nil {
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t, err = time.ParseInLocation(jsonFormatISO8601withoutSeconds, str, time.UTC)
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}
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} else {
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var i int64
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i, err = strconv.ParseInt(str, 10, 64)
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if err == nil {
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t = time.Unix(i/1000, i%1000)
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}
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}
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if err == nil {
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*it = ISO6801Time(t)
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}
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return err
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}
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// String returns the time in ISO6801Time format
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func (it ISO6801Time) String() string {
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return time.Time(it).Format(formatISO8601)
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}
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