Initial commit

pkg/models/resources/storageclasses.go

@@ -0,0 +1,121 @@
+/*
+
+ Copyright 2019 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 resources
+
+import (
+	"sort"
+	"strings"
+
+	"k8s.io/api/storage/v1"
+	"k8s.io/apimachinery/pkg/labels"
+	lister "k8s.io/client-go/listers/storage/v1"
+)
+
+type storageClassesSearcher struct {
+	storageClassesLister lister.StorageClassLister
+}
+
+// exactly match
+func (*storageClassesSearcher) match(match map[string]string, item *v1.StorageClass) bool {
+	for k, v := range match {
+		switch k {
+		case name:
+			if item.Name != v && item.Labels[displayName] != v {
+				return false
+			}
+		default:
+			return false
+		}
+	}
+	return true
+}
+
+// fuzzy searchInNamespace
+func (*storageClassesSearcher) fuzzy(fuzzy map[string]string, item *v1.StorageClass) bool {
+	for k, v := range fuzzy {
+		switch k {
+		case name:
+			if !strings.Contains(item.Name, v) && !strings.Contains(item.Labels[displayName], v) {
+				return false
+			}
+		case label:
+			if !searchFuzzy(item.Labels, "", v) {
+				return false
+			}
+		case annotation:
+			if !searchFuzzy(item.Annotations, "", v) {
+				return false
+			}
+			return false
+		case keyword:
+			if !strings.Contains(item.Name, v) && !searchFuzzy(item.Labels, "", v) && !searchFuzzy(item.Annotations, "", v) {
+				return false
+			}
+		default:
+			if !searchFuzzy(item.Labels, k, v) && !searchFuzzy(item.Annotations, k, v) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+func (*storageClassesSearcher) compare(a, b *v1.StorageClass, orderBy string) bool {
+	switch orderBy {
+	case createTime:
+		return a.CreationTimestamp.Time.After(b.CreationTimestamp.Time)
+	case name:
+		fallthrough
+	default:
+		return strings.Compare(a.Name, b.Name) <= 0
+	}
+}
+
+func (s *storageClassesSearcher) search(conditions *conditions, orderBy string, reverse bool) ([]interface{}, error) {
+	storageClasses, err := s.storageClassesLister.List(labels.Everything())
+
+	if err != nil {
+		return nil, err
+	}
+
+	result := make([]*v1.StorageClass, 0)
+
+	if len(conditions.match) == 0 && len(conditions.fuzzy) == 0 {
+		result = storageClasses
+	} else {
+		for _, item := range storageClasses {
+			if s.match(conditions.match, item) && s.fuzzy(conditions.fuzzy, item) {
+				result = append(result, item)
+			}
+		}
+	}
+	sort.Slice(result, func(i, j int) bool {
+		if reverse {
+			tmp := i
+			i = j
+			j = tmp
+		}
+		return s.compare(result[i], result[j], orderBy)
+	})
+
+	r := make([]interface{}, 0)
+	for _, i := range result {
+		r = append(r, i)
+	}
+	return r, nil
+}