103 lines
2.5 KiB
Go
103 lines
2.5 KiB
Go
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/*
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Copyright 2015 The Kubernetes Authors.
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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 parser
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import (
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"errors"
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"fmt"
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"strconv"
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"k8s.io/kubernetes/pkg/apis/extensions"
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)
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var (
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// ErrMissingAnnotations is returned when the ingress rule
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// does not contains annotations related with rate limit
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ErrMissingAnnotations = errors.New("Ingress rule without annotations")
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// ErrInvalidName ...
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ErrInvalidName = errors.New("invalid annotation name")
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)
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type ingAnnotations map[string]string
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func (a ingAnnotations) parseBool(name string) (bool, error) {
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val, ok := a[name]
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if ok {
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if b, err := strconv.ParseBool(val); err == nil {
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return b, nil
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}
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}
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return false, ErrMissingAnnotations
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}
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func (a ingAnnotations) parseString(name string) (string, error) {
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val, ok := a[name]
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if ok {
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return val, nil
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}
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return "", ErrMissingAnnotations
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}
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func (a ingAnnotations) parseInt(name string) (int, error) {
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val, ok := a[name]
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if ok {
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i, err := strconv.Atoi(val)
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if err != nil {
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return 0, fmt.Errorf("invalid annotations value: %v", err)
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}
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return i, nil
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}
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return 0, ErrMissingAnnotations
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}
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// GetBoolAnnotation ...
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func GetBoolAnnotation(name string, ing *extensions.Ingress) (bool, error) {
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if ing == nil || ing.GetAnnotations() == nil {
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return false, ErrMissingAnnotations
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}
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if name == "" {
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return false, ErrInvalidName
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}
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return ingAnnotations(ing.GetAnnotations()).parseBool(name)
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}
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// GetStringAnnotation ...
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func GetStringAnnotation(name string, ing *extensions.Ingress) (string, error) {
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if ing == nil || ing.GetAnnotations() == nil {
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return "", ErrMissingAnnotations
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}
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if name == "" {
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return "", ErrInvalidName
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}
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return ingAnnotations(ing.GetAnnotations()).parseString(name)
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}
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// GetIntAnnotation ...
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func GetIntAnnotation(name string, ing *extensions.Ingress) (int, error) {
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if ing == nil || ing.GetAnnotations() == nil {
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return 0, ErrMissingAnnotations
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}
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if name == "" {
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return 0, ErrInvalidName
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}
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return ingAnnotations(ing.GetAnnotations()).parseInt(name)
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}
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