Matteo Scandolo | a428586 | 2020-12-01 18:10:10 -0800 | [diff] [blame^] | 1 | /* |
| 2 | Copyright 2018 The Kubernetes Authors. |
| 3 | |
| 4 | Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | you may not use this file except in compliance with the License. |
| 6 | You may obtain a copy of the License at |
| 7 | |
| 8 | http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | |
| 10 | Unless required by applicable law or agreed to in writing, software |
| 11 | distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | See the License for the specific language governing permissions and |
| 14 | limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package value |
| 18 | |
| 19 | import ( |
| 20 | "fmt" |
| 21 | ) |
| 22 | |
| 23 | // NewValueInterface creates a Value backed by an "interface{}" type, |
| 24 | // typically an unstructured object in Kubernetes world. |
| 25 | // interface{} must be one of: map[string]interface{}, map[interface{}]interface{}, []interface{}, int types, float types, |
| 26 | // string or boolean. Nested interface{} must also be one of these types. |
| 27 | func NewValueInterface(v interface{}) Value { |
| 28 | return Value(HeapAllocator.allocValueUnstructured().reuse(v)) |
| 29 | } |
| 30 | |
| 31 | type valueUnstructured struct { |
| 32 | Value interface{} |
| 33 | } |
| 34 | |
| 35 | // reuse replaces the value of the valueUnstructured. |
| 36 | func (vi *valueUnstructured) reuse(value interface{}) Value { |
| 37 | vi.Value = value |
| 38 | return vi |
| 39 | } |
| 40 | |
| 41 | func (v valueUnstructured) IsMap() bool { |
| 42 | if _, ok := v.Value.(map[string]interface{}); ok { |
| 43 | return true |
| 44 | } |
| 45 | if _, ok := v.Value.(map[interface{}]interface{}); ok { |
| 46 | return true |
| 47 | } |
| 48 | return false |
| 49 | } |
| 50 | |
| 51 | func (v valueUnstructured) AsMap() Map { |
| 52 | return v.AsMapUsing(HeapAllocator) |
| 53 | } |
| 54 | |
| 55 | func (v valueUnstructured) AsMapUsing(_ Allocator) Map { |
| 56 | if v.Value == nil { |
| 57 | panic("invalid nil") |
| 58 | } |
| 59 | switch t := v.Value.(type) { |
| 60 | case map[string]interface{}: |
| 61 | return mapUnstructuredString(t) |
| 62 | case map[interface{}]interface{}: |
| 63 | return mapUnstructuredInterface(t) |
| 64 | } |
| 65 | panic(fmt.Errorf("not a map: %#v", v)) |
| 66 | } |
| 67 | |
| 68 | func (v valueUnstructured) IsList() bool { |
| 69 | if v.Value == nil { |
| 70 | return false |
| 71 | } |
| 72 | _, ok := v.Value.([]interface{}) |
| 73 | return ok |
| 74 | } |
| 75 | |
| 76 | func (v valueUnstructured) AsList() List { |
| 77 | return v.AsListUsing(HeapAllocator) |
| 78 | } |
| 79 | |
| 80 | func (v valueUnstructured) AsListUsing(_ Allocator) List { |
| 81 | return listUnstructured(v.Value.([]interface{})) |
| 82 | } |
| 83 | |
| 84 | func (v valueUnstructured) IsFloat() bool { |
| 85 | if v.Value == nil { |
| 86 | return false |
| 87 | } else if _, ok := v.Value.(float64); ok { |
| 88 | return true |
| 89 | } else if _, ok := v.Value.(float32); ok { |
| 90 | return true |
| 91 | } |
| 92 | return false |
| 93 | } |
| 94 | |
| 95 | func (v valueUnstructured) AsFloat() float64 { |
| 96 | if f, ok := v.Value.(float32); ok { |
| 97 | return float64(f) |
| 98 | } |
| 99 | return v.Value.(float64) |
| 100 | } |
| 101 | |
| 102 | func (v valueUnstructured) IsInt() bool { |
| 103 | if v.Value == nil { |
| 104 | return false |
| 105 | } else if _, ok := v.Value.(int); ok { |
| 106 | return true |
| 107 | } else if _, ok := v.Value.(int8); ok { |
| 108 | return true |
| 109 | } else if _, ok := v.Value.(int16); ok { |
| 110 | return true |
| 111 | } else if _, ok := v.Value.(int32); ok { |
| 112 | return true |
| 113 | } else if _, ok := v.Value.(int64); ok { |
| 114 | return true |
| 115 | } else if _, ok := v.Value.(uint); ok { |
| 116 | return true |
| 117 | } else if _, ok := v.Value.(uint8); ok { |
| 118 | return true |
| 119 | } else if _, ok := v.Value.(uint16); ok { |
| 120 | return true |
| 121 | } else if _, ok := v.Value.(uint32); ok { |
| 122 | return true |
| 123 | } |
| 124 | return false |
| 125 | } |
| 126 | |
| 127 | func (v valueUnstructured) AsInt() int64 { |
| 128 | if i, ok := v.Value.(int); ok { |
| 129 | return int64(i) |
| 130 | } else if i, ok := v.Value.(int8); ok { |
| 131 | return int64(i) |
| 132 | } else if i, ok := v.Value.(int16); ok { |
| 133 | return int64(i) |
| 134 | } else if i, ok := v.Value.(int32); ok { |
| 135 | return int64(i) |
| 136 | } else if i, ok := v.Value.(uint); ok { |
| 137 | return int64(i) |
| 138 | } else if i, ok := v.Value.(uint8); ok { |
| 139 | return int64(i) |
| 140 | } else if i, ok := v.Value.(uint16); ok { |
| 141 | return int64(i) |
| 142 | } else if i, ok := v.Value.(uint32); ok { |
| 143 | return int64(i) |
| 144 | } |
| 145 | return v.Value.(int64) |
| 146 | } |
| 147 | |
| 148 | func (v valueUnstructured) IsString() bool { |
| 149 | if v.Value == nil { |
| 150 | return false |
| 151 | } |
| 152 | _, ok := v.Value.(string) |
| 153 | return ok |
| 154 | } |
| 155 | |
| 156 | func (v valueUnstructured) AsString() string { |
| 157 | return v.Value.(string) |
| 158 | } |
| 159 | |
| 160 | func (v valueUnstructured) IsBool() bool { |
| 161 | if v.Value == nil { |
| 162 | return false |
| 163 | } |
| 164 | _, ok := v.Value.(bool) |
| 165 | return ok |
| 166 | } |
| 167 | |
| 168 | func (v valueUnstructured) AsBool() bool { |
| 169 | return v.Value.(bool) |
| 170 | } |
| 171 | |
| 172 | func (v valueUnstructured) IsNull() bool { |
| 173 | return v.Value == nil |
| 174 | } |
| 175 | |
| 176 | func (v valueUnstructured) Unstructured() interface{} { |
| 177 | return v.Value |
| 178 | } |