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koord-manager: refactor config validation by github.com/go-playground #1233
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,89 @@ | ||
| /* | ||
| Copyright 2022 The Koordinator Authors. | ||
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| 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 | ||
|
|
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| 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 sloconfig | ||
|
|
||
| import ( | ||
| "sync" | ||
|
|
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| "github.com/go-playground/locales/en" | ||
| "github.com/go-playground/locales/zh" | ||
| ut "github.com/go-playground/universal-translator" | ||
| "github.com/go-playground/validator/v10" | ||
| transen "github.com/go-playground/validator/v10/translations/en" | ||
| transzh "github.com/go-playground/validator/v10/translations/zh" | ||
| ) | ||
|
|
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| var validatorInstance = &DefaultValidator{} | ||
|
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| type DefaultValidator struct { | ||
| once sync.Once | ||
| validator *validator.Validate | ||
| trans *ut.Translator | ||
| } | ||
|
|
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| // StructWithTrans support en or zh translator | ||
| func (v *DefaultValidator) StructWithTrans(config interface{}) (validator.ValidationErrorsTranslations, error) { | ||
| err := v.validator.Struct(config) | ||
| switch err.(type) { | ||
| case validator.ValidationErrors: | ||
| if v.trans != nil { | ||
| return err.(validator.ValidationErrors).Translate(*v.trans), nil | ||
| } | ||
| default: | ||
| } | ||
| return nil, err | ||
| } | ||
|
|
||
| func GetValidatorInstance() *DefaultValidator { | ||
| validatorInstance.once.Do(func() { | ||
| validatorInstance.validator, validatorInstance.trans = createValidator() | ||
| }) | ||
| return validatorInstance | ||
| } | ||
|
|
||
| func createValidator() (*validator.Validate, *ut.Translator) { | ||
| instance := validator.New() | ||
| switch DefaultTranslator { | ||
| case Zh: | ||
| return instance, registerZhTranslator(instance) | ||
| case En: | ||
| return instance, registerEnTranslator(instance) | ||
| default: | ||
| return instance, registerEnTranslator(instance) | ||
| } | ||
| } | ||
|
|
||
| func registerEnTranslator(instance *validator.Validate) *ut.Translator { | ||
| locale := en.New() | ||
| uni := ut.New(locale, locale) | ||
| trans, _ := uni.GetTranslator(En) | ||
| err := transen.RegisterDefaultTranslations(instance, trans) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| return &trans | ||
| } | ||
|
|
||
| func registerZhTranslator(instance *validator.Validate) *ut.Translator { | ||
| locale := zh.New() | ||
| uni := ut.New(locale, locale) | ||
| trans, _ := uni.GetTranslator(Zh) | ||
| err := transzh.RegisterDefaultTranslations(instance, trans) | ||
| if err != nil { | ||
| return nil | ||
| } | ||
| return &trans | ||
| } | ||
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