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2a370053 | 1 | import { ChargingStationWorkerData, WorkerMessage, WorkerMessageEvents } from '../types/Worker'; |
81797102 | 2 | |
ded13d97 | 3 | import Configuration from '../utils/Configuration'; |
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4 | import { Storage } from '../utils/performance-storage/Storage'; |
5 | import { StorageFactory } from '../utils/performance-storage/StorageFactory'; | |
ded13d97 | 6 | import Utils from '../utils/Utils'; |
fd1fdf1b | 7 | import WorkerAbstract from '../worker/WorkerAbstract'; |
ded13d97 | 8 | import WorkerFactory from '../worker/WorkerFactory'; |
8eac9a09 | 9 | import chalk from 'chalk'; |
ded13d97 | 10 | import { isMainThread } from 'worker_threads'; |
bf1866b2 | 11 | import path from 'path'; |
84e52c2c | 12 | import { version } from '../../package.json'; |
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13 | |
14 | export default class Bootstrap { | |
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15 | private static instance: Bootstrap | null = null; |
16 | private static workerImplementation: WorkerAbstract | null = null; | |
81797102 | 17 | private static storage: Storage; |
aef1b33a | 18 | private version: string = version; |
eb87fe87 | 19 | private started: boolean; |
ded13d97 | 20 | private workerScript: string; |
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21 | |
22 | private constructor() { | |
eb87fe87 | 23 | this.started = false; |
07f35004 | 24 | this.workerScript = path.join(path.resolve(__dirname, '../'), 'charging-station', 'ChargingStationWorker.js'); |
8df3f0a9 | 25 | this.initWorkerImplementation(); |
81797102 | 26 | Bootstrap.storage = StorageFactory.getStorage(Configuration.getPerformanceStorage().type, Configuration.getPerformanceStorage().URI, this.logPrefix()); |
7874b0b1 | 27 | Configuration.setConfigurationChangeCallback(async () => Bootstrap.getInstance().restart()); |
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28 | } |
29 | ||
30 | public static getInstance(): Bootstrap { | |
31 | if (!Bootstrap.instance) { | |
32 | Bootstrap.instance = new Bootstrap(); | |
33 | } | |
34 | return Bootstrap.instance; | |
35 | } | |
36 | ||
37 | public async start(): Promise<void> { | |
eb87fe87 | 38 | if (isMainThread && !this.started) { |
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39 | try { |
40 | let numStationsTotal = 0; | |
2a370053 | 41 | await Bootstrap.storage.open(); |
535aaa27 | 42 | await Bootstrap.workerImplementation.start(); |
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43 | // Start ChargingStation object in worker thread |
44 | if (Configuration.getStationTemplateURLs()) { | |
45 | for (const stationURL of Configuration.getStationTemplateURLs()) { | |
46 | try { | |
47 | const nbStations = stationURL.numberOfStations ? stationURL.numberOfStations : 0; | |
48 | for (let index = 1; index <= nbStations; index++) { | |
07f35004 | 49 | const workerData: ChargingStationWorkerData = { |
ded13d97 | 50 | index, |
bf1866b2 | 51 | templateFile: path.join(path.resolve(__dirname, '../'), 'assets', 'station-templates', path.basename(stationURL.file)) |
ded13d97 | 52 | }; |
535aaa27 | 53 | await Bootstrap.workerImplementation.addElement(workerData); |
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54 | numStationsTotal++; |
55 | } | |
56 | } catch (error) { | |
8eac9a09 | 57 | console.error(chalk.red('Charging station start with template file ' + stationURL.file + ' error '), error); |
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58 | } |
59 | } | |
60 | } else { | |
8eac9a09 | 61 | console.warn(chalk.yellow('No stationTemplateURLs defined in configuration, exiting')); |
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62 | } |
63 | if (numStationsTotal === 0) { | |
8eac9a09 | 64 | console.warn(chalk.yellow('No charging station template enabled in configuration, exiting')); |
ded13d97 | 65 | } else { |
8eac9a09 | 66 | console.log(chalk.green(`Charging station simulator ${this.version} started with ${numStationsTotal.toString()} charging station(s) and ${Utils.workerDynamicPoolInUse() ? `${Configuration.getWorkerPoolMinSize().toString()}/` : ''}${Bootstrap.workerImplementation.size}${Utils.workerPoolInUse() ? `/${Configuration.getWorkerPoolMaxSize().toString()}` : ''} worker(s) concurrently running in '${Configuration.getWorkerProcess()}' mode${Bootstrap.workerImplementation.maxElementsPerWorker ? ` (${Bootstrap.workerImplementation.maxElementsPerWorker} charging station(s) per worker)` : ''}`)); |
ded13d97 | 67 | } |
eb87fe87 | 68 | this.started = true; |
ded13d97 | 69 | } catch (error) { |
8eac9a09 | 70 | console.error(chalk.red('Bootstrap start error '), error); |
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71 | } |
72 | } | |
73 | } | |
74 | ||
75 | public async stop(): Promise<void> { | |
eb87fe87 | 76 | if (isMainThread && this.started) { |
535aaa27 | 77 | await Bootstrap.workerImplementation.stop(); |
2a370053 | 78 | await Bootstrap.storage.close(); |
ded13d97 | 79 | } |
eb87fe87 | 80 | this.started = false; |
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81 | } |
82 | ||
83 | public async restart(): Promise<void> { | |
84 | await this.stop(); | |
535aaa27 | 85 | this.initWorkerImplementation(); |
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86 | await this.start(); |
87 | } | |
88 | ||
2a370053 | 89 | private initWorkerImplementation(): void { |
07f35004 | 90 | Bootstrap.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(this.workerScript, Configuration.getWorkerProcess(), |
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91 | { |
92 | startDelay: Configuration.getWorkerStartDelay(), | |
93 | poolMaxSize: Configuration.getWorkerPoolMaxSize(), | |
94 | poolMinSize: Configuration.getWorkerPoolMinSize(), | |
95 | elementsPerWorker: Configuration.getChargingStationsPerWorker(), | |
96 | poolOptions: { | |
97 | workerChoiceStrategy: Configuration.getWorkerPoolStrategy() | |
98 | } | |
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99 | // eslint-disable-next-line @typescript-eslint/no-misused-promises |
100 | }, async (msg: WorkerMessage) => { | |
101 | if (msg.id === WorkerMessageEvents.PERFORMANCE_STATISTICS) { | |
102 | await Bootstrap.storage.storePerformanceStatistics(msg.data); | |
81797102 | 103 | } |
535aaa27 | 104 | }); |
ded13d97 | 105 | } |
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106 | |
107 | private logPrefix(): string { | |
689dca78 | 108 | return Utils.logPrefix(' Bootstrap |'); |
81797102 | 109 | } |
ded13d97 | 110 | } |