复制项目

pkg/common/servererrs/relation.go

@@ -0,0 +1,58 @@
+// Copyright © 2023 OpenIM. All rights reserved.
+//
+// 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 servererrs
+
+import "github.com/openimsdk/tools/errs"
+
+var Relation = &relation{m: make(map[int]map[int]struct{})}
+
+func init() {
+	Relation.Add(errs.RecordNotFoundError, UserIDNotFoundError)
+	Relation.Add(errs.RecordNotFoundError, GroupIDNotFoundError)
+	Relation.Add(errs.DuplicateKeyError, GroupIDExisted)
+}
+
+type relation struct {
+	m map[int]map[int]struct{}
+}
+
+func (r *relation) Add(codes ...int) {
+	if len(codes) < 2 {
+		panic("codes length must be greater than 2")
+	}
+	for i := 1; i < len(codes); i++ {
+		parent := codes[i-1]
+		s, ok := r.m[parent]
+		if !ok {
+			s = make(map[int]struct{})
+			r.m[parent] = s
+		}
+		for _, code := range codes[i:] {
+			s[code] = struct{}{}
+		}
+	}
+}
+
+func (r *relation) Is(parent, child int) bool {
+	if parent == child {
+		return true
+	}
+	s, ok := r.m[parent]
+	if !ok {
+		return false
+	}
+	_, ok = s[child]
+	return ok
+}