Godeps/_workspace/src/github.com/pborman/uuid/json.go


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

// Copyright 2014 Google Inc.  All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package uuid

import "errors"

func (u UUID) MarshalJSON() ([]byte, error) {
    if len(u) == 0 {
        return []byte(`""`), nil
    }
    return []byte(`"` + u.String() + `"`), nil
}

func (u *UUID) UnmarshalJSON(data []byte) error {
    if len(data) == 0 || string(data) == `""` {
        return nil
    }
    if len(data) < 2 || data[0] != '"' || data[len(data)-1] != '"' {
        return errors.New("invalid UUID format")
    }
    data = data[1 : len(data)-1]
    uu := Parse(string(data))
    if uu == nil {
        return errors.New("invalid UUID format")
    }
    *u = uu
    return nil
}