src/performance/storage/MongoDBStorage.ts

   1 // Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
   2
   3 import { MongoClient } from 'mongodb'
   4
   5 import { Storage } from './Storage.js'
   6 import { BaseError } from '../../exception/index.js'
   7 import { type Statistics, StorageType } from '../../types/index.js'
   8 import { Constants } from '../../utils/index.js'
   9
  10 export class MongoDBStorage extends Storage {
  11   private readonly client?: MongoClient
  12   private connected: boolean
  13
  14   constructor (storageUri: string, logPrefix: string) {
  15     super(storageUri, logPrefix)
  16     this.client = new MongoClient(this.storageUri.toString())
  17     this.connected = false
  18     this.dbName =
  19       this.storageUri.pathname.replace(/(?:^\/)|(?:\/$)/g, '') ??
  20       Constants.DEFAULT_PERFORMANCE_RECORDS_DB_NAME
  21   }
  22
  23   public async storePerformanceStatistics (performanceStatistics: Statistics): Promise<void> {
  24     try {
  25       this.checkDBConnection()
  26       await this.client
  27         ?.db(this.dbName)
  28         .collection<Statistics>(Constants.PERFORMANCE_RECORDS_TABLE)
  29         .replaceOne({ id: performanceStatistics.id }, performanceStatistics, { upsert: true })
  30     } catch (error) {
  31       this.handleDBError(StorageType.MONGO_DB, error as Error, Constants.PERFORMANCE_RECORDS_TABLE)
  32     }
  33   }
  34
  35   public async open (): Promise<void> {
  36     try {
  37       if (!this.connected && this?.client != null) {
  38         await this.client.connect()
  39         this.connected = true
  40       }
  41     } catch (error) {
  42       this.handleDBError(StorageType.MONGO_DB, error as Error)
  43     }
  44   }
  45
  46   public async close (): Promise<void> {
  47     try {
  48       if (this.connected && this?.client != null) {
  49         await this.client.close()
  50         this.connected = false
  51       }
  52     } catch (error) {
  53       this.handleDBError(StorageType.MONGO_DB, error as Error)
  54     }
  55   }
  56
  57   private checkDBConnection (): void {
  58     if (this?.client == null) {
  59       throw new BaseError(
  60         `${this.logPrefix} ${this.getDBNameFromStorageType(
  61           StorageType.MONGO_DB
  62         )} client initialization failed while trying to issue a request`
  63       )
  64     }
  65     if (!this.connected) {
  66       throw new BaseError(
  67         `${this.logPrefix} ${this.getDBNameFromStorageType(
  68           StorageType.MONGO_DB
  69         )} connection not opened while trying to issue a request`
  70       )
  71     }
  72   }
  73 }