/
validators_string.go
81 lines (71 loc) · 2.18 KB
/
validators_string.go
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// Copyright 2019 Yunion
//
// 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 validators
import (
"yunion.io/x/jsonutils"
)
type ValidatorStringLen struct {
Validator
Value string
minLen int
maxLen int
}
func NewStringLenRangeValidator(key string, minLen, maxLen int) *ValidatorStringLen {
v := &ValidatorStringLen{
Validator: Validator{Key: key},
minLen: minLen,
maxLen: maxLen,
}
v.SetParent(v)
return v
}
func NewMinStringLenValidator(key string, minLen int) *ValidatorStringLen {
return NewStringLenRangeValidator(key, minLen, -1)
}
func NewMaxStringLenValidator(key string, maxLen int) *ValidatorStringLen {
return NewStringLenRangeValidator(key, -1, maxLen)
}
func NewStringNonEmptyValidator(key string) *ValidatorStringLen {
return NewMinStringLenValidator(key, 1)
}
func (v *ValidatorStringLen) Default(s string) IValidator {
if v.minLen >= 0 && len(s) < v.minLen {
panic("invalid default string: shorter than validator requirement")
}
if v.maxLen >= 0 && len(s) > v.maxLen {
panic("invalid default string: shorter than validator requirement")
}
return v.Validator.Default(s)
}
func (v *ValidatorStringLen) getValue() interface{} {
return v.Value
}
func (v *ValidatorStringLen) Validate(data *jsonutils.JSONDict) error {
if err, isSet := v.Validator.validateEx(data); err != nil || !isSet {
return err
}
s, err := v.value.GetString()
if err != nil {
return newGeneralError(v.Key, err)
}
if v.minLen >= 0 && len(s) < v.minLen {
return newStringTooShortError(v.Key, len(s), v.minLen)
}
if v.maxLen >= 0 && len(s) > v.maxLen {
return newStringTooLongError(v.Key, len(s), v.maxLen)
}
data.Set(v.Key, jsonutils.NewString(s))
v.Value = s
return nil
}