forked from minio/minio
-
Notifications
You must be signed in to change notification settings - Fork 0
/
numericgreaterfunc.go
153 lines (126 loc) · 4.29 KB
/
numericgreaterfunc.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
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
/*
* MinIO Cloud Storage, (C) 2020 MinIO, Inc.
*
* 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 condition
import (
"fmt"
"net/http"
"strconv"
)
func toNumericGreaterThanFuncString(n name, key Key, value int) string {
return fmt.Sprintf("%v:%v:%v", n, key, value)
}
// numericGreaterThanFunc - String equals function. It checks whether value by Key in given
// values map is in condition values.
// For example,
// - if values = ["mybucket/foo"], at evaluate() it returns whether string
// in value map for Key is in values.
type numericGreaterThanFunc struct {
k Key
value int
}
// evaluate() - evaluates to check whether value by Key in given values is in
// condition values.
func (f numericGreaterThanFunc) evaluate(values map[string][]string) bool {
requestValue, ok := values[http.CanonicalHeaderKey(f.k.Name())]
if !ok {
requestValue = values[f.k.Name()]
}
if len(requestValue) == 0 {
return false
}
rvInt, err := strconv.Atoi(requestValue[0])
if err != nil {
return false
}
return rvInt > f.value
}
// key() - returns condition key which is used by this condition function.
func (f numericGreaterThanFunc) key() Key {
return f.k
}
// name() - returns "NumericGreaterThan" condition name.
func (f numericGreaterThanFunc) name() name {
return numericGreaterThan
}
func (f numericGreaterThanFunc) String() string {
return toNumericGreaterThanFuncString(numericGreaterThan, f.k, f.value)
}
// toMap - returns map representation of this function.
func (f numericGreaterThanFunc) toMap() map[Key]ValueSet {
if !f.k.IsValid() {
return nil
}
values := NewValueSet()
values.Add(NewIntValue(f.value))
return map[Key]ValueSet{
f.k: values,
}
}
// numericGreaterThanEqualsFunc - String not equals function. It checks whether value by Key in
// given values is NOT in condition values.
// For example,
// - if values = ["mybucket/foo"], at evaluate() it returns whether string
// in value map for Key is NOT in values.
type numericGreaterThanEqualsFunc struct {
numericGreaterThanFunc
}
// evaluate() - evaluates to check whether value by Key in given values is NOT in
// condition values.
func (f numericGreaterThanEqualsFunc) evaluate(values map[string][]string) bool {
requestValue, ok := values[http.CanonicalHeaderKey(f.k.Name())]
if !ok {
requestValue = values[f.k.Name()]
}
if len(requestValue) == 0 {
return false
}
rvInt, err := strconv.Atoi(requestValue[0])
if err != nil {
return false
}
return rvInt >= f.value
}
// name() - returns "NumericGreaterThanEquals" condition name.
func (f numericGreaterThanEqualsFunc) name() name {
return numericGreaterThanEquals
}
func (f numericGreaterThanEqualsFunc) String() string {
return toNumericGreaterThanFuncString(numericGreaterThanEquals, f.numericGreaterThanFunc.k, f.numericGreaterThanFunc.value)
}
// newNumericGreaterThanFunc - returns new NumericGreaterThan function.
func newNumericGreaterThanFunc(key Key, values ValueSet) (Function, error) {
v, err := valueToInt(numericGreaterThan, values)
if err != nil {
return nil, err
}
return NewNumericGreaterThanFunc(key, v)
}
// NewNumericGreaterThanFunc - returns new NumericGreaterThan function.
func NewNumericGreaterThanFunc(key Key, value int) (Function, error) {
return &numericGreaterThanFunc{key, value}, nil
}
// newNumericGreaterThanEqualsFunc - returns new NumericGreaterThanEquals function.
func newNumericGreaterThanEqualsFunc(key Key, values ValueSet) (Function, error) {
v, err := valueToInt(numericGreaterThanEquals, values)
if err != nil {
return nil, err
}
return NewNumericGreaterThanEqualsFunc(key, v)
}
// NewNumericGreaterThanEqualsFunc - returns new NumericGreaterThanEquals function.
func NewNumericGreaterThanEqualsFunc(key Key, value int) (Function, error) {
return &numericGreaterThanEqualsFunc{numericGreaterThanFunc{key, value}}, nil
}