src/services/ancestors-service/ancestors-service.ts

   1 // Copyright (C) The Arvados Authors. All rights reserved.
   2 //
   3 // SPDX-License-Identifier: AGPL-3.0
   4
   5 import { GroupsService } from "services/groups-service/groups-service";
   6 import { UserService } from '../user-service/user-service';
   7 import { GroupResource } from 'models/group';
   8 import { UserResource } from 'models/user';
   9 import { extractUuidObjectType, ResourceObjectType } from "models/resource";
  10
  11 export class AncestorService {
  12     constructor(
  13         private groupsService: GroupsService,
  14         private userService: UserService
  15     ) { }
  16
  17     async ancestors(startUuid: string, endUuid: string): Promise<Array<UserResource | GroupResource>> {
  18         return this._ancestors(startUuid, endUuid);
  19     }
  20
  21     private async _ancestors(startUuid: string, endUuid: string, previousUuid = ''): Promise<Array<UserResource | GroupResource>> {
  22
  23         if (startUuid === previousUuid) {
  24             return [];
  25         }
  26
  27         const service = this.getService(extractUuidObjectType(startUuid));
  28         if (service) {
  29             try {
  30                 const resource = await service.get(startUuid, false);
  31                 if (startUuid === endUuid) {
  32                     return [resource];
  33                 } else {
  34                     return [
  35                         ...await this._ancestors(resource.ownerUuid, endUuid, startUuid),
  36                         resource
  37                     ];
  38                 }
  39             } catch (e) {
  40                 return [];
  41             }
  42         }
  43         return [];
  44     }
  45
  46     private getService = (objectType?: string) => {
  47         switch (objectType) {
  48             case ResourceObjectType.GROUP:
  49                 return this.groupsService;
  50             case ResourceObjectType.USER:
  51                 return this.userService;
  52             default:
  53                 return undefined;
  54         }
  55     }
  56 }