77 lines
1.6 KiB
Go
77 lines
1.6 KiB
Go
/*
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Copyright 2018 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 unstructpath
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import (
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"sort"
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p "k8s.io/kubectl/pkg/framework/predicates"
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)
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// This is a Map-to-Value filter.
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type mapFilter interface {
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SelectFrom(...map[string]interface{}) []interface{}
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}
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func filterMap(ms MapS, mf mapFilter) ValueS {
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return &valueS{
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vf: &valueMapFilter{
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ms: ms,
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mf: mf,
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},
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}
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}
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type mapFieldPFilter struct {
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sp p.String
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}
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func (f mapFieldPFilter) SelectFrom(maps ...map[string]interface{}) []interface{} {
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values := []interface{}{}
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for _, m := range maps {
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for _, field := range sortedKeys(m) {
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if !f.sp.Match(field) {
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continue
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}
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values = append(values, m[field])
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}
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}
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return values
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}
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type mapAllFilter struct{}
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func (mapAllFilter) SelectFrom(maps ...map[string]interface{}) []interface{} {
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values := []interface{}{}
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for _, m := range maps {
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for _, field := range sortedKeys(m) {
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values = append(values, All().SelectFrom(m[field])...)
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}
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}
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return values
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}
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func sortedKeys(m map[string]interface{}) []string {
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keys := []string{}
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for key := range m {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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return keys
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}
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