1 // Copyright (c) 2020-2025 Uber Technologies, Inc.
2 //
3 // Permission is hereby granted, free of charge, to any person obtaining a copy
4 // of this software and associated documentation files (the "Software"), to deal
5 // in the Software without restriction, including without limitation the rights
6 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 // copies of the Software, and to permit persons to whom the Software is
8 // furnished to do so, subject to the following conditions:
9 //
10 // The above copyright notice and this permission notice shall be included in
11 // all copies or substantial portions of the Software.
12 //
13 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 // THE SOFTWARE.
20 21 package atomic
22 23 import (
24 "encoding/base64"
25 "encoding/json"
26 )
27 28 // MarshalJSON encodes the wrapped []byte as a base64 string.
29 //
30 // This makes it encodable as JSON.
31 func (b *Bytes) MarshalJSON() ([]byte, error) {
32 data := b.Load()
33 if data == nil {
34 return []byte("null"), nil
35 }
36 encoded := base64.StdEncoding.EncodeToString(data)
37 return json.Marshal(encoded)
38 }
39 40 // UnmarshalJSON decodes a base64 string and replaces the wrapped []byte with it.
41 //
42 // This makes it decodable from JSON.
43 func (b *Bytes) UnmarshalJSON(text []byte) error {
44 var encoded string
45 if err := json.Unmarshal(text, &encoded); err != nil {
46 return err
47 }
48 49 decoded, err := base64.StdEncoding.DecodeString(encoded)
50 if err != nil {
51 return err
52 }
53 54 b.Store(decoded)
55 return nil
56 }
57