src/performance/storage/MongoDBStorage.ts

   1 // Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
   2
   3 import { MongoClient } from 'mongodb'
   4
   5 import { BaseError } from '../../exception/index.js'
   6 import { type Statistics, StorageType } from '../../types/index.js'
   7 import { Constants } from '../../utils/index.js'
   8 import { Storage } from './Storage.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(/(?:^\/)|(?:\/$)/g, '')
  19   }
  20
  21   public async storePerformanceStatistics (performanceStatistics: Statistics): Promise<void> {
  22     try {
  23       this.setPerformanceStatistics(performanceStatistics)
  24       this.checkDBConnection()
  25       await this.client
  26         ?.db(this.dbName)
  27         .collection<Statistics>(Constants.PERFORMANCE_RECORDS_TABLE)
  28         .replaceOne({ id: performanceStatistics.id }, performanceStatistics, {
  29           upsert: true
  30         })
  31     } catch (error) {
  32       this.handleDBStorageError(
  33         StorageType.MONGO_DB,
  34         error as Error,
  35         Constants.PERFORMANCE_RECORDS_TABLE
  36       )
  37     }
  38   }
  39
  40   public async open (): Promise<void> {
  41     try {
  42       if (!this.connected && this.client != null) {
  43         await this.client.connect()
  44         this.connected = true
  45       }
  46     } catch (error) {
  47       this.handleDBStorageError(StorageType.MONGO_DB, error as Error)
  48     }
  49   }
  50
  51   public async close (): Promise<void> {
  52     this.clearPerformanceStatistics()
  53     try {
  54       if (this.connected && this.client != null) {
  55         await this.client.close()
  56         this.connected = false
  57       }
  58     } catch (error) {
  59       this.handleDBStorageError(StorageType.MONGO_DB, error as Error)
  60     }
  61   }
  62
  63   private checkDBConnection (): void {
  64     if (this.client == null) {
  65       throw new BaseError(
  66         `${this.logPrefix} ${this.getDBNameFromStorageType(
  67           StorageType.MONGO_DB
  68         )} client initialization failed while trying to issue a request`
  69       )
  70     }
  71     if (!this.connected) {
  72       throw new BaseError(
  73         `${this.logPrefix} ${this.getDBNameFromStorageType(
  74           StorageType.MONGO_DB
  75         )} connection not opened while trying to issue a request`
  76       )
  77     }
  78   }
  79 }