src/performance/storage/MongoDBStorage.ts

   1 // Copyright Jerome Benoit. 2021-2024. 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 = this.storageUri.pathname.replace(/(?:^\/)|(?:\/$)/g, '')
  19   }
  20
  21   public async storePerformanceStatistics (performanceStatistics: Statistics): Promise<void> {
  22     try {
  23       this.setPerformanceStatistics(performanceStatistics)
  24       this.checkDBConnection()
  25       await this.client
  26         ?.db(this.dbName)
  27         .collection<Statistics>(Constants.PERFORMANCE_RECORDS_TABLE)
  28         .replaceOne({ id: performanceStatistics.id }, performanceStatistics, { upsert: true })
  29     } catch (error) {
  30       this.handleDBError(StorageType.MONGO_DB, error as Error, Constants.PERFORMANCE_RECORDS_TABLE)
  31     }
  32   }
  33
  34   public async open (): Promise<void> {
  35     try {
  36       if (!this.connected && this.client != null) {
  37         await this.client.connect()
  38         this.connected = true
  39       }
  40     } catch (error) {
  41       this.handleDBError(StorageType.MONGO_DB, error as Error)
  42     }
  43   }
  44
  45   public async close (): Promise<void> {
  46     this.clearPerformanceStatistics()
  47     try {
  48       if (this.connected && this.client != null) {
  49         await this.client.close()
  50         this.connected = false
  51       }
  52     } catch (error) {
  53       this.handleDBError(StorageType.MONGO_DB, error as Error)
  54     }
  55   }
  56
  57   private checkDBConnection (): void {
  58     if (this.client == null) {
  59       throw new BaseError(
  60         `${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 }