add snapshotclass

Signed-off-by: f10atin9 <f10atin9@kubesphere.io>

pkg/models/resources/v1alpha3/volumesnapshotclass/volumesnapshotclass.go

@@ -0,0 +1,88 @@
+/*
+Copyright 2021 The KubeSphere Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package volumesnapshotclass
+
+import (
+	"strings"
+
+	v1 "github.com/kubernetes-csi/external-snapshotter/client/v4/apis/volumesnapshot/v1"
+	"github.com/kubernetes-csi/external-snapshotter/client/v4/informers/externalversions"
+	"k8s.io/apimachinery/pkg/runtime"
+
+	"kubesphere.io/kubesphere/pkg/api"
+	"kubesphere.io/kubesphere/pkg/apiserver/query"
+	"kubesphere.io/kubesphere/pkg/models/resources/v1alpha3"
+)
+
+const (
+	deletionPolicy = "deletionPolicy"
+	driver         = "driver"
+)
+
+type volumeSnapshotClassGetter struct {
+	informers externalversions.SharedInformerFactory
+}
+
+func New(informer externalversions.SharedInformerFactory) v1alpha3.Interface {
+	return &volumeSnapshotClassGetter{informers: informer}
+}
+
+func (v *volumeSnapshotClassGetter) Get(namespace, name string) (runtime.Object, error) {
+	return v.informers.Snapshot().V1().VolumeSnapshotClasses().Lister().Get(name)
+}
+
+func (v *volumeSnapshotClassGetter) List(namespace string, query *query.Query) (*api.ListResult, error) {
+	all, err := v.informers.Snapshot().V1().VolumeSnapshotClasses().Lister().List(query.Selector())
+	if err != nil {
+		return nil, err
+	}
+
+	var result []runtime.Object
+	for _, snapshotClass := range all {
+		result = append(result, snapshotClass)
+	}
+
+	return v1alpha3.DefaultList(result, query, v.compare, v.filter), nil
+}
+
+func (v *volumeSnapshotClassGetter) compare(left, right runtime.Object, field query.Field) bool {
+	leftSnapshotClass, ok := left.(*v1.VolumeSnapshotClass)
+	if !ok {
+		return false
+	}
+	rightSnapshotClass, ok := right.(*v1.VolumeSnapshotClass)
+	if !ok {
+		return false
+	}
+	return v1alpha3.DefaultObjectMetaCompare(leftSnapshotClass.ObjectMeta, rightSnapshotClass.ObjectMeta, field)
+}
+
+func (v *volumeSnapshotClassGetter) filter(object runtime.Object, filter query.Filter) bool {
+	snapshotClass, ok := object.(*v1.VolumeSnapshotClass)
+	if !ok {
+		return false
+	}
+
+	switch filter.Field {
+	case deletionPolicy:
+		return strings.EqualFold(string(snapshotClass.DeletionPolicy), string(filter.Value))
+	case driver:
+		return strings.EqualFold(snapshotClass.Driver, string(filter.Value))
+	default:
+		return v1alpha3.DefaultObjectMetaFilter(snapshotClass.ObjectMeta, filter)
+	}
+}