1/* 2 * Copyright (c) 2023-2025 Huawei Device Co., Ltd. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17export class GlobalContext { 18 private constructor() { 19 } 20 21 private static instance: GlobalContext; 22 private _objects = new Map<string, Object>(); 23 24 public static getContext(): GlobalContext { 25 if (!GlobalContext.instance) { 26 GlobalContext.instance = new GlobalContext(); 27 } 28 return GlobalContext.instance; 29 } 30 31 getValue(value: string): Object { 32 let result = this._objects.get(value); 33 if (!result) { 34 throw new Error("this value undefined"); 35 } 36 return result; 37 } 38 39 setValue(key: string, objectClass: Object): void { 40 this._objects.set(key, objectClass); 41 } 42}