110 lines
3.1 KiB
Go
110 lines
3.1 KiB
Go
/*
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Copyright 2016 The Kubernetes Authors All rights reserved.
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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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http://www.apache.org/licenses/LICENSE-2.0
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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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*/
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package util
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import (
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"fmt"
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"strings"
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)
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// ExtraOption is an extra option
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type ExtraOption struct {
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Component string
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Key string
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Value string
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}
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func (e *ExtraOption) String() string {
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return fmt.Sprintf("%s.%s=%s", e.Component, e.Key, e.Value)
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}
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// ExtraOptionSlice is a slice of ExtraOption
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type ExtraOptionSlice []ExtraOption
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// ComponentExtraOptionMap maps components to their extra opts, which is a map of keys to values
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type ComponentExtraOptionMap map[string]map[string]string
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// Set parses the string value into a slice
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func (es *ExtraOptionSlice) Set(value string) error {
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// The component is the value before the first dot.
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componentSplit := strings.SplitN(value, ".", 2)
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if len(componentSplit) < 2 {
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return fmt.Errorf("invalid value: must contain at least one period: %q", value)
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}
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remainder := strings.Join(componentSplit[1:], "")
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keySplit := strings.SplitN(remainder, "=", 2)
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if len(keySplit) != 2 {
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return fmt.Errorf("invalid value: must contain one equal sign: %q", value)
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}
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e := ExtraOption{
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Component: componentSplit[0],
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Key: keySplit[0],
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Value: keySplit[1],
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}
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*es = append(*es, e)
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return nil
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}
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// String converts the slice to a string value
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func (es *ExtraOptionSlice) String() string {
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s := []string{}
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for _, e := range *es {
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s = append(s, e.String())
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}
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return strings.Join(s, " ")
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}
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// Get finds and returns the value of an argument with the specified key and component (optional) or an empty string
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// if not found. If component contains more than one value, the value for the first component found is returned. If
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// component is not specified, all of the components are used.
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func (es *ExtraOptionSlice) Get(key string, component ...string) string {
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for _, opt := range *es {
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if component == nil || ContainsString(component, opt.Component) {
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if opt.Key == key {
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return opt.Value
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}
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}
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}
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return ""
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}
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// AsMap converts the slice to a map of components to a map of keys and values.
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func (es *ExtraOptionSlice) AsMap() ComponentExtraOptionMap {
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ret := ComponentExtraOptionMap{}
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for _, opt := range *es {
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if _, ok := ret[opt.Component]; !ok {
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ret[opt.Component] = map[string]string{opt.Key: opt.Value}
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} else {
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ret[opt.Component][opt.Key] = opt.Value
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}
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}
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return ret
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}
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// Type returns the type
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func (es *ExtraOptionSlice) Type() string {
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return "ExtraOption"
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}
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// Get returns the extra option map of keys to values for the specified component
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func (cm ComponentExtraOptionMap) Get(component string) map[string]string {
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return cm[component]
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}
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