-
Notifications
You must be signed in to change notification settings - Fork 66
Expand file tree
/
Copy pathtime.go
More file actions
321 lines (270 loc) · 9.66 KB
/
time.go
File metadata and controls
321 lines (270 loc) · 9.66 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
// Copyright 2015 go-swagger maintainers
//
// 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 strfmt
import (
"database/sql/driver"
"encoding/binary"
"encoding/json"
"errors"
"fmt"
"regexp"
"strings"
"time"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/bson/bsontype"
)
var (
// UnixZero sets the zero unix timestamp we want to compare against.
// Unix 0 for an EST timezone is not equivalent to a UTC timezone.
UnixZero = time.Unix(0, 0).UTC()
)
func init() {
dt := DateTime{}
Default.Add("datetime", &dt, IsDateTime)
}
// IsDateTime returns true when the string is a valid date-time
func IsDateTime(str string) bool {
if len(str) < 4 {
return false
}
s := strings.Split(strings.ToLower(str), "t")
if len(s) < 2 || !IsDate(s[0]) {
return false
}
matches := rxDateTime.FindAllStringSubmatch(s[1], -1)
if len(matches) == 0 || len(matches[0]) == 0 {
return false
}
m := matches[0]
res := m[1] <= "23" && m[2] <= "59" && m[3] <= "59"
return res
}
const (
// RFC3339Millis represents a ISO8601 format to millis instead of to nanos
RFC3339Millis = "2006-01-02T15:04:05.000Z07:00"
// RFC3339MillisNoColon represents a ISO8601 format to millis instead of to nanos
RFC3339MillisNoColon = "2006-01-02T15:04:05.000Z0700"
// RFC3339Micro represents a ISO8601 format to micro instead of to nano
RFC3339Micro = "2006-01-02T15:04:05.000000Z07:00"
// RFC3339MicroNoColon represents a ISO8601 format to micro instead of to nano
RFC3339MicroNoColon = "2006-01-02T15:04:05.000000Z0700"
// ISO8601LocalTime represents a ISO8601 format to ISO8601 in local time (no timezone)
ISO8601LocalTime = "2006-01-02T15:04:05"
// ISO8601TimeWithReducedPrecision represents a ISO8601 format with reduced precision (dropped secs)
ISO8601TimeWithReducedPrecision = "2006-01-02T15:04Z"
// ISO8601TimeWithReducedPrecisionLocaltime represents a ISO8601 format with reduced precision and no timezone (dropped seconds + no timezone)
ISO8601TimeWithReducedPrecisionLocaltime = "2006-01-02T15:04"
// ISO8601TimeUniversalSortableDateTimePattern represents a ISO8601 universal sortable date time pattern.
ISO8601TimeUniversalSortableDateTimePattern = "2006-01-02 15:04:05"
// short form of ISO8601TimeUniversalSortableDateTimePattern
ISO8601TimeUniversalSortableDateTimePatternShortForm = "2006-01-02"
// DateTimePattern pattern to match for the date-time format from http://tools.ietf.org/html/rfc3339#section-5.6
DateTimePattern = `^([0-9]{2}):([0-9]{2}):([0-9]{2})(.[0-9]+)?(z|([+-][0-9]{2}:[0-9]{2}))$`
)
var (
rxDateTime = regexp.MustCompile(DateTimePattern)
// DateTimeFormats is the collection of formats used by ParseDateTime()
DateTimeFormats = []string{RFC3339Micro, RFC3339MicroNoColon, RFC3339Millis, RFC3339MillisNoColon, time.RFC3339, time.RFC3339Nano, ISO8601LocalTime, ISO8601TimeWithReducedPrecision, ISO8601TimeWithReducedPrecisionLocaltime, ISO8601TimeUniversalSortableDateTimePattern, ISO8601TimeUniversalSortableDateTimePatternShortForm}
// MarshalFormat sets the time resolution format used for marshaling time (set to milliseconds)
MarshalFormat = RFC3339Millis
// NormalizeTimeForMarshal provides a normalization function on time befeore marshalling (e.g. time.UTC).
// By default, the time value is not changed.
NormalizeTimeForMarshal = func(t time.Time) time.Time { return t }
// DefaultTimeLocation provides a location for a time when the time zone is not encoded in the string (ex: ISO8601 Local variants).
DefaultTimeLocation = time.UTC
)
// ParseDateTime parses a string that represents an ISO8601 time or a unix epoch
func ParseDateTime(data string) (DateTime, error) {
if data == "" {
return NewDateTime(), nil
}
var lastError error
for _, layout := range DateTimeFormats {
dd, err := time.ParseInLocation(layout, data, DefaultTimeLocation)
if err != nil {
lastError = err
continue
}
return DateTime(dd), nil
}
return DateTime{}, lastError
}
// DateTime is a time but it serializes to ISO8601 format with millis
// It knows how to read 3 different variations of a RFC3339 date time.
// Most APIs we encounter want either millisecond or second precision times.
// This just tries to make it worry-free.
//
// swagger:strfmt date-time
type DateTime time.Time
// NewDateTime is a representation of zero value for DateTime type
func NewDateTime() DateTime {
return DateTime(time.Unix(0, 0).UTC())
}
// String converts this time to a string
func (t DateTime) String() string {
return NormalizeTimeForMarshal(time.Time(t)).Format(MarshalFormat)
}
// IsZero returns whether the date time is a zero value
func (t *DateTime) IsZero() bool {
if t == nil {
return true
}
return time.Time(*t).IsZero()
}
// IsUnixZerom returns whether the date time is equivalent to time.Unix(0, 0).UTC().
func (t *DateTime) IsUnixZero() bool {
if t == nil {
return true
}
return time.Time(*t).Equal(UnixZero)
}
// MarshalText implements the text marshaller interface
func (t DateTime) MarshalText() ([]byte, error) {
return []byte(t.String()), nil
}
// UnmarshalText implements the text unmarshaller interface
func (t *DateTime) UnmarshalText(text []byte) error {
tt, err := ParseDateTime(string(text))
if err != nil {
return err
}
*t = tt
return nil
}
// Scan scans a DateTime value from database driver type.
func (t *DateTime) Scan(raw interface{}) error {
// TODO: case int64: and case float64: ?
switch v := raw.(type) {
case []byte:
return t.UnmarshalText(v)
case string:
return t.UnmarshalText([]byte(v))
case time.Time:
*t = DateTime(v)
case nil:
*t = DateTime{}
default:
return fmt.Errorf("cannot sql.Scan() strfmt.DateTime from: %#v", v)
}
return nil
}
// Value converts DateTime to a primitive value ready to written to a database.
func (t DateTime) Value() (driver.Value, error) {
return driver.Value(t.String()), nil
}
// MarshalJSON returns the DateTime as JSON
func (t DateTime) MarshalJSON() ([]byte, error) {
return json.Marshal(NormalizeTimeForMarshal(time.Time(t)).Format(MarshalFormat))
}
// UnmarshalJSON sets the DateTime from JSON
func (t *DateTime) UnmarshalJSON(data []byte) error {
if string(data) == jsonNull {
return nil
}
var tstr string
if err := json.Unmarshal(data, &tstr); err != nil {
return err
}
tt, err := ParseDateTime(tstr)
if err != nil {
return err
}
*t = tt
return nil
}
// MarshalBSON renders the DateTime as a BSON document
func (t DateTime) MarshalBSON() ([]byte, error) {
return bson.Marshal(bson.M{"data": t})
}
// UnmarshalBSON reads the DateTime from a BSON document
func (t *DateTime) UnmarshalBSON(data []byte) error {
var obj struct {
Data DateTime
}
if err := bson.Unmarshal(data, &obj); err != nil {
return err
}
*t = obj.Data
return nil
}
// MarshalBSONValue is an interface implemented by types that can marshal themselves
// into a BSON document represented as bytes. The bytes returned must be a valid
// BSON document if the error is nil.
// Marshals a DateTime as a bsontype.DateTime, an int64 representing
// milliseconds since epoch.
func (t DateTime) MarshalBSONValue() (bsontype.Type, []byte, error) {
// UnixNano cannot be used directly, the result of calling UnixNano on the zero
// Time is undefined. Thats why we use time.Nanosecond() instead.
tNorm := NormalizeTimeForMarshal(time.Time(t))
i64 := tNorm.Unix()*1000 + int64(tNorm.Nanosecond())/1e6
buf := make([]byte, 8)
binary.LittleEndian.PutUint64(buf, uint64(i64))
return bson.TypeDateTime, buf, nil
}
// UnmarshalBSONValue is an interface implemented by types that can unmarshal a
// BSON value representation of themselves. The BSON bytes and type can be
// assumed to be valid. UnmarshalBSONValue must copy the BSON value bytes if it
// wishes to retain the data after returning.
func (t *DateTime) UnmarshalBSONValue(tpe bsontype.Type, data []byte) error {
if tpe == bson.TypeNull {
*t = DateTime{}
return nil
}
if len(data) != 8 {
return errors.New("bson date field length not exactly 8 bytes")
}
i64 := int64(binary.LittleEndian.Uint64(data))
// TODO: Use bsonprim.DateTime.Time() method
*t = DateTime(time.Unix(i64/1000, i64%1000*1000000))
return nil
}
// DeepCopyInto copies the receiver and writes its value into out.
func (t *DateTime) DeepCopyInto(out *DateTime) {
*out = *t
}
// DeepCopy copies the receiver into a new DateTime.
func (t *DateTime) DeepCopy() *DateTime {
if t == nil {
return nil
}
out := new(DateTime)
t.DeepCopyInto(out)
return out
}
// GobEncode implements the gob.GobEncoder interface.
func (t DateTime) GobEncode() ([]byte, error) {
return t.MarshalBinary()
}
// GobDecode implements the gob.GobDecoder interface.
func (t *DateTime) GobDecode(data []byte) error {
return t.UnmarshalBinary(data)
}
// MarshalBinary implements the encoding.BinaryMarshaler interface.
func (t DateTime) MarshalBinary() ([]byte, error) {
return NormalizeTimeForMarshal(time.Time(t)).MarshalBinary()
}
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
func (t *DateTime) UnmarshalBinary(data []byte) error {
var original time.Time
err := original.UnmarshalBinary(data)
if err != nil {
return err
}
*t = DateTime(original)
return nil
}
// Equal checks if two DateTime instances are equal using time.Time's Equal method
func (t DateTime) Equal(t2 DateTime) bool {
return time.Time(t).Equal(time.Time(t2))
}