70 lines
1.8 KiB
Go
70 lines
1.8 KiB
Go
// Copyright 2020 beego-dev
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package common
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// KV is common structure to store key-value data.
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// when you need something like Pair, you can use this
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type KV struct {
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Key interface{}
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Value interface{}
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}
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// KVs will store KV collection as map
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type KVs struct {
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kvs map[interface{}]interface{}
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}
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// GetValueOr check whether this contains the key,
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// if the key not found, the default value will be return
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func (kvs *KVs) GetValueOr(key interface{}, defValue interface{}) interface{} {
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v, ok := kvs.kvs[key]
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if ok {
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return v
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}
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return defValue
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}
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// Contains will check whether contains the key
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func (kvs *KVs) Contains(key interface{}) bool {
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_, ok := kvs.kvs[key]
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return ok
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}
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// IfContains is a functional API that if the key is in KVs, the action will be invoked
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func (kvs *KVs) IfContains(key interface{}, action func(value interface{})) *KVs {
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v, ok := kvs.kvs[key]
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if ok {
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action(v)
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}
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return kvs
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}
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// Put store the value
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func (kvs *KVs) Put(key interface{}, value interface{}) *KVs {
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kvs.kvs[key] = value
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return kvs
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}
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// NewKVs will create the *KVs instance
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func NewKVs(kvs ...KV) *KVs {
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res := &KVs{
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kvs: make(map[interface{}]interface{}, len(kvs)),
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}
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for _, kv := range kvs {
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res.kvs[kv.Key] = kv.Value
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}
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return res
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}
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