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gitea/vendor/github.com/go-openapi/strfmt/ulid.go

222 lines
4.9 KiB

package strfmt
import (
cryptorand "crypto/rand"
"database/sql/driver"
"encoding/json"
"errors"
"fmt"
"io"
"sync"
"github.com/oklog/ulid"
"go.mongodb.org/mongo-driver/bson"
)
// ULID represents a ulid string format
// ref:
// https://github.com/ulid/spec
// impl:
// https://github.com/oklog/ulid
//
// swagger:strfmt ulid
type ULID struct {
ulid.ULID
}
var (
ulidEntropyPool = sync.Pool{
New: func() interface{} {
return cryptorand.Reader
},
}
ULIDScanDefaultFunc = func(raw interface{}) (ULID, error) {
var u ULID = NewULIDZero()
switch x := raw.(type) {
case nil:
// zerp ulid
return u, nil
case string:
if x == "" {
// zero ulid
return u, nil
}
return u, u.UnmarshalText([]byte(x))
case []byte:
return u, u.UnmarshalText(x)
}
return u, fmt.Errorf("cannot sql.Scan() strfmt.ULID from: %#v: %w", raw, ulid.ErrScanValue)
}
// ULIDScanOverrideFunc allows you to override the Scan method of the ULID type
ULIDScanOverrideFunc = ULIDScanDefaultFunc
ULIDValueDefaultFunc = func(u ULID) (driver.Value, error) {
return driver.Value(u.String()), nil
}
// ULIDValueOverrideFunc allows you to override the Value method of the ULID type
ULIDValueOverrideFunc = ULIDValueDefaultFunc
)
func init() {
// register formats in the default registry:
// - ulid
ulid := ULID{}
Default.Add("ulid", &ulid, IsULID)
}
// IsULID checks if provided string is ULID format
// Be noticed that this function considers overflowed ULID as non-ulid.
// For more details see https://github.com/ulid/spec
func IsULID(str string) bool {
_, err := ulid.ParseStrict(str)
return err == nil
}
// ParseULID parses a string that represents an valid ULID
func ParseULID(str string) (ULID, error) {
var u ULID
return u, u.UnmarshalText([]byte(str))
}
// NewULIDZero returns a zero valued ULID type
func NewULIDZero() ULID {
return ULID{}
}
// NewULID generates new unique ULID value and a error if any
func NewULID() (u ULID, err error) {
entropy := ulidEntropyPool.Get().(io.Reader)
id, err := ulid.New(ulid.Now(), entropy)
if err != nil {
return u, err
}
ulidEntropyPool.Put(entropy)
u.ULID = id
return u, nil
}
// GetULID returns underlying instance of ULID
func (u *ULID) GetULID() interface{} {
return u.ULID
}
// MarshalText returns this instance into text
func (u ULID) MarshalText() ([]byte, error) {
return u.ULID.MarshalText()
}
// UnmarshalText hydrates this instance from text
func (u *ULID) UnmarshalText(data []byte) error { // validation is performed later on
return u.ULID.UnmarshalText(data)
}
// Scan reads a value from a database driver
func (u *ULID) Scan(raw interface{}) error {
ul, err := ULIDScanOverrideFunc(raw)
if err == nil {
*u = ul
}
return err
}
// Value converts a value to a database driver value
func (u ULID) Value() (driver.Value, error) {
return ULIDValueOverrideFunc(u)
}
func (u ULID) String() string {
return u.ULID.String()
}
// MarshalJSON returns the ULID as JSON
func (u ULID) MarshalJSON() ([]byte, error) {
return json.Marshal(u.String())
}
// UnmarshalJSON sets the ULID from JSON
func (u *ULID) UnmarshalJSON(data []byte) error {
if string(data) == jsonNull {
return nil
}
var ustr string
if err := json.Unmarshal(data, &ustr); err != nil {
return err
}
id, err := ulid.ParseStrict(ustr)
if err != nil {
return fmt.Errorf("couldn't parse JSON value as ULID: %w", err)
}
u.ULID = id
return nil
}
// MarshalBSON document from this value
func (u ULID) MarshalBSON() ([]byte, error) {
return bson.Marshal(bson.M{"data": u.String()})
}
// UnmarshalBSON document into this value
func (u *ULID) UnmarshalBSON(data []byte) error {
var m bson.M
if err := bson.Unmarshal(data, &m); err != nil {
return err
}
if ud, ok := m["data"].(string); ok {
id, err := ulid.ParseStrict(ud)
if err != nil {
return fmt.Errorf("couldn't parse bson bytes as ULID: %w", err)
}
u.ULID = id
return nil
}
return errors.New("couldn't unmarshal bson bytes as ULID")
}
// DeepCopyInto copies the receiver and writes its value into out.
func (u *ULID) DeepCopyInto(out *ULID) {
*out = *u
}
// DeepCopy copies the receiver into a new ULID.
func (u *ULID) DeepCopy() *ULID {
if u == nil {
return nil
}
out := new(ULID)
u.DeepCopyInto(out)
return out
}
// GobEncode implements the gob.GobEncoder interface.
func (u ULID) GobEncode() ([]byte, error) {
return u.ULID.MarshalBinary()
}
// GobDecode implements the gob.GobDecoder interface.
func (u *ULID) GobDecode(data []byte) error {
return u.ULID.UnmarshalBinary(data)
}
// MarshalBinary implements the encoding.BinaryMarshaler interface.
func (u ULID) MarshalBinary() ([]byte, error) {
return u.ULID.MarshalBinary()
}
// UnmarshalBinary implements the encoding.BinaryUnmarshaler interface.
func (u *ULID) UnmarshalBinary(data []byte) error {
return u.ULID.UnmarshalBinary(data)
}
// Equal checks if two ULID instances are equal by their underlying type
func (u ULID) Equal(other ULID) bool {
return u.ULID == other.ULID
}