| 1 | import Constants from '../Constants'; |
| 2 | import { DBType } from '../../types/Storage'; |
| 3 | import { MongoClient } from 'mongodb'; |
| 4 | import Statistics from '../../types/Statistics'; |
| 5 | import { Storage } from './Storage'; |
| 6 | |
| 7 | export class MongoDBStorage extends Storage { |
| 8 | private client: MongoClient; |
| 9 | private connected: boolean; |
| 10 | |
| 11 | constructor(storageURI: string, logPrefix: string) { |
| 12 | super(storageURI, logPrefix); |
| 13 | this.client = new MongoClient(this.storageURI.toString()); |
| 14 | this.connected = false; |
| 15 | this.dbName = this.storageURI.pathname.replace(/(?:^\/)|(?:\/$)/g, '') ?? Constants.DEFAULT_PERFORMANCE_RECORDS_DB_NAME; |
| 16 | } |
| 17 | |
| 18 | public async storePerformanceStatistics(performanceStatistics: Statistics): Promise<void> { |
| 19 | try { |
| 20 | this.checkDBConnection(); |
| 21 | await this.client.db(this.dbName).collection<Statistics>(Constants.PERFORMANCE_RECORDS_TABLE).insertOne(performanceStatistics); |
| 22 | } catch (error) { |
| 23 | this.handleDBError(DBType.MONGO_DB, error, Constants.PERFORMANCE_RECORDS_TABLE); |
| 24 | } |
| 25 | } |
| 26 | |
| 27 | public async open(): Promise<void> { |
| 28 | try { |
| 29 | if (!this.connected) { |
| 30 | await this.client.connect(); |
| 31 | this.connected = true; |
| 32 | } |
| 33 | } catch (error) { |
| 34 | this.handleDBError(DBType.MONGO_DB, error); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | public async close(): Promise<void> { |
| 39 | try { |
| 40 | if (this.connected) { |
| 41 | await this.client.close(); |
| 42 | this.connected = false; |
| 43 | } |
| 44 | } catch (error) { |
| 45 | this.handleDBError(DBType.MONGO_DB, error); |
| 46 | } |
| 47 | } |
| 48 | |
| 49 | private checkDBConnection() { |
| 50 | if (!this.connected) { |
| 51 | throw new Error(`${this.logPrefix} ${DBType.MONGO_DB} connection not opened while trying to issue a request`); |
| 52 | } |
| 53 | } |
| 54 | } |