mirror of https://github.com/k3s-io/k3s
76 lines
2.4 KiB
Go
76 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 apps
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import (
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"fmt"
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"k8s.io/apimachinery/pkg/runtime/schema"
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)
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// KindVisitor is used with GroupKindElement to call a particular function depending on the
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// Kind of a schema.GroupKind
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type KindVisitor interface {
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VisitDaemonSet(kind GroupKindElement)
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VisitDeployment(kind GroupKindElement)
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VisitJob(kind GroupKindElement)
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VisitPod(kind GroupKindElement)
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VisitReplicaSet(kind GroupKindElement)
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VisitReplicationController(kind GroupKindElement)
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VisitStatefulSet(kind GroupKindElement)
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VisitCronJob(kind GroupKindElement)
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}
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// GroupKindElement defines a Kubernetes API group elem
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type GroupKindElement schema.GroupKind
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// Accept calls the Visit method on visitor that corresponds to elem's Kind
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func (elem GroupKindElement) Accept(visitor KindVisitor) error {
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switch {
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case elem.GroupMatch("apps", "extensions") && elem.Kind == "DaemonSet":
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visitor.VisitDaemonSet(elem)
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case elem.GroupMatch("apps", "extensions") && elem.Kind == "Deployment":
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visitor.VisitDeployment(elem)
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case elem.GroupMatch("batch") && elem.Kind == "Job":
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visitor.VisitJob(elem)
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case elem.GroupMatch("", "core") && elem.Kind == "Pod":
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visitor.VisitPod(elem)
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case elem.GroupMatch("apps", "extensions") && elem.Kind == "ReplicaSet":
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visitor.VisitReplicaSet(elem)
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case elem.GroupMatch("", "core") && elem.Kind == "ReplicationController":
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visitor.VisitReplicationController(elem)
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case elem.GroupMatch("apps") && elem.Kind == "StatefulSet":
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visitor.VisitStatefulSet(elem)
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case elem.GroupMatch("batch") && elem.Kind == "CronJob":
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visitor.VisitCronJob(elem)
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default:
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return fmt.Errorf("no visitor method exists for %v", elem)
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}
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return nil
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}
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// GroupMatch returns true if and only if elem's group matches one
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// of the group arguments
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func (elem GroupKindElement) GroupMatch(groups ...string) bool {
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for _, g := range groups {
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if elem.Group == g {
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return true
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}
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}
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return false
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}
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