src/common/service-provider.ts

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 class ServicesProvider {
   6
   7     private static instance: ServicesProvider;
   8
   9     private services;
  10
  11     private constructor() {}
  12
  13     public static getInstance(): ServicesProvider {
  14         if (!ServicesProvider.instance) {
  15             ServicesProvider.instance = new ServicesProvider();
  16         }
  17
  18         return ServicesProvider.instance;
  19     }
  20
  21     public setServices(newServices): void {
  22         if (!this.services) {
  23             this.services = newServices;
  24         }
  25     }
  26
  27     public getServices() {
  28         if (!this.services) {
  29             throw "Please check if services have been set in the index.ts before the app is initiated"; // eslint-disable-line no-throw-literal
  30         }
  31         return this.services;
  32     }
  33 }
  34
  35 export default ServicesProvider.getInstance();