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0299a2403f
- Add DetectConflictor interface on Element level. Implemented it for particular elements. - If Options.FailOnConflict is enabled, Merge will detect conflict by invoking doConflictDecect for particular element, returning ConflictError with details. - Add tests, including use case examples and illustration. For example: list, map, and complicated combination.
87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
/*
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Copyright 2017 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 apply
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// MapElement contains the recorded, local and remote values for a field
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// of type map
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type MapElement struct {
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// FieldMetaImpl contains metadata about the field from openapi
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FieldMetaImpl
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// MapElementData contains the value a field was set to
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MapElementData
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// Values contains the combined recorded-local-remote value of each item in the map
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// Values contains the values in mapElement. Element must contain
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// a Name matching its key in Values
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Values map[string]Element
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}
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// Merge implements Element.Merge
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func (e MapElement) Merge(v Strategy) (Result, error) {
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return v.MergeMap(e)
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}
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// GetValues implements Element.GetValues
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func (e MapElement) GetValues() map[string]Element {
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return e.Values
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}
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var _ Element = &MapElement{}
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// MapElementData contains the recorded, local and remote data for a map or type
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type MapElementData struct {
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RawElementData
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}
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// GetRecordedMap returns the Recorded value as a map
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func (e MapElementData) GetRecordedMap() map[string]interface{} {
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return mapCast(e.recorded)
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}
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// GetLocalMap returns the Local value as a map
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func (e MapElementData) GetLocalMap() map[string]interface{} {
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return mapCast(e.local)
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}
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// GetRemoteMap returns the Remote value as a map
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func (e MapElementData) GetRemoteMap() map[string]interface{} {
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return mapCast(e.remote)
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}
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// mapCast casts i to a map if it is non-nil, otherwise returns nil
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func mapCast(i interface{}) map[string]interface{} {
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if i == nil {
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return nil
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}
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return i.(map[string]interface{})
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}
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// HasConflict returns ConflictError if some elements in map conflict.
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func (e MapElement) HasConflict() error {
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for _, item := range e.GetValues() {
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if item, ok := item.(ConflictDetector); ok {
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if err := item.HasConflict(); err != nil {
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return err
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}
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}
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}
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return nil
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}
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var _ ConflictDetector = &MapElement{}
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