forked from sjwhitworth/golearn
-
Notifications
You must be signed in to change notification settings - Fork 0
/
binary.go
93 lines (80 loc) · 2.05 KB
/
binary.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
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
package base
import (
"encoding/json"
"fmt"
"strconv"
)
// BinaryAttributes can only represent 1 or 0.
type BinaryAttribute struct {
Name string
}
// MarshalJSON returns a JSON version of this BinaryAttribute for serialisation.
func (b *BinaryAttribute) MarshalJSON() ([]byte, error) {
return json.Marshal(map[string]interface{}{
"type": "binary",
"name": b.Name,
})
}
// UnmarshalJSON unpacks a BinaryAttribute from serialisation.
// Usually, there's nothing to deserialize.
func (b *BinaryAttribute) UnmarshalJSON(data []byte) error {
return nil
}
// NewBinaryAttribute creates a BinaryAttribute with the given name
func NewBinaryAttribute(name string) *BinaryAttribute {
return &BinaryAttribute{
name,
}
}
// GetName returns the name of this Attribute.
func (b *BinaryAttribute) GetName() string {
return b.Name
}
// SetName sets the name of this Attribute.
func (b *BinaryAttribute) SetName(name string) {
b.Name = name
}
// GetType returns BinaryType.
func (b *BinaryAttribute) GetType() int {
return BinaryType
}
// GetSysValFromString returns either 1 or 0 in a single byte.
func (b *BinaryAttribute) GetSysValFromString(userVal string) []byte {
f, err := strconv.ParseFloat(userVal, 64)
if err != nil {
panic(err)
}
ret := make([]byte, 1)
if f > 0 {
ret[0] = 1
}
return ret
}
// GetStringFromSysVal returns either 1 or 0.
func (b *BinaryAttribute) GetStringFromSysVal(val []byte) string {
if val[0] > 0 {
return "1"
}
return "0"
}
// Equals checks for equality with another BinaryAttribute.
func (b *BinaryAttribute) Equals(other Attribute) bool {
if a, ok := other.(*BinaryAttribute); !ok {
return false
} else {
return a.Name == b.Name
}
}
// Compatible checks whether this Attribute can be represented
// in the same pond as another.
func (b *BinaryAttribute) Compatible(other Attribute) bool {
if _, ok := other.(*BinaryAttribute); !ok {
return false
} else {
return true
}
}
// String returns a human-redable representation.
func (b *BinaryAttribute) String() string {
return fmt.Sprintf("BinaryAttribute(%s)", b.Name)
}