mirror of
https://github.com/kubernetes-sigs/node-feature-discovery.git
synced 2025-03-06 16:57:10 +00:00
b907d07d7e
Flatten the data structure that stores features, dropping the "domain" level from the data model. That extra level of hierarchy brought little benefit but just caused some extra complexity, instead. The new structure nicely matches what we have in the NodeFeatureRule object (the matchFeatures field of uses the same flat structure with the "feature" field having a value <domain>.<feature>, e.g. "kernel.version"). This is pre-work for introducing a new "node feature" CRD that contains the raw feature data. It makes the life of both users and developers easier when both CRDs, plus our internal code, handle feature data in a similar flat structure.
84 lines
2.5 KiB
Go
84 lines
2.5 KiB
Go
/*
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Copyright 2021 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 v1alpha1
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// NewFeatures creates a new instance of Features, initializing all feature
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// types (flags, attributes and instances) to empty values.
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func NewFeatures() *Features {
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return &Features{
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Flags: make(map[string]FlagFeatureSet),
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Attributes: make(map[string]AttributeFeatureSet),
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Instances: make(map[string]InstanceFeatureSet)}
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}
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// NewFlagFeatures creates a new instance of KeyFeatureSet.
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func NewFlagFeatures(keys ...string) FlagFeatureSet {
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e := make(map[string]Nil, len(keys))
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for _, k := range keys {
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e[k] = Nil{}
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}
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return FlagFeatureSet{Elements: e}
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}
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// NewAttributeFeatures creates a new instance of ValueFeatureSet.
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func NewAttributeFeatures(values map[string]string) AttributeFeatureSet {
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if values == nil {
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values = make(map[string]string)
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}
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return AttributeFeatureSet{Elements: values}
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}
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// NewInstanceFeatures creates a new instance of InstanceFeatureSet.
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func NewInstanceFeatures(instances []InstanceFeature) InstanceFeatureSet {
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return InstanceFeatureSet{Elements: instances}
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}
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// NewInstanceFeature creates a new InstanceFeature instance.
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func NewInstanceFeature(attrs map[string]string) *InstanceFeature {
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if attrs == nil {
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attrs = make(map[string]string)
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}
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return &InstanceFeature{Attributes: attrs}
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}
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// InsertAttributeFeatures inserts new values into a specific feature.
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func (f *Features) InsertAttributeFeatures(domain, feature string, values map[string]string) {
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key := domain + "." + feature
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if _, ok := f.Attributes[key]; !ok {
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f.Attributes[key] = NewAttributeFeatures(values)
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return
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}
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for k, v := range values {
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f.Attributes[key].Elements[k] = v
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}
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}
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// Exists returns a non-empty string if a feature exists. The return value is
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// the type of the feautre, i.e. "flag", "attribute" or "instance".
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func (f *Features) Exists(name string) string {
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if _, ok := f.Flags[name]; ok {
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return "flag"
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}
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if _, ok := f.Attributes[name]; ok {
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return "attribute"
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}
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if _, ok := f.Instances[name]; ok {
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return "instance"
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}
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return ""
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}
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