| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 stringutil |
| |
| import ( |
| "sort" |
| "strings" |
| ) |
| |
| const ( |
| // LabelNone is the format string when the map is none |
| LabelNone = "none" |
| ) |
| |
| //FormatMap format map to string |
| func FormatMap(m map[string]string) string { |
| if len(m) == 0 { |
| return LabelNone |
| } |
| sb := strings.Builder{} |
| s := make([]string, 0, len(m)) |
| for k := range m { |
| s = append(s, k) |
| } |
| sort.Strings(s) |
| for i, k := range s { |
| sb.WriteString(k) |
| sb.WriteString("=") |
| sb.WriteString(m[k]) |
| if i != (len(s) - 1) { |
| sb.WriteString("::") |
| } |
| } |
| return sb.String() |
| } |