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1 | // Partial Copyright Jerome Benoit. 2021. All Rights Reserved. |
2 | ||
8114d10e JB |
3 | import path from 'path'; |
4 | import { fileURLToPath } from 'url'; | |
5 | import { isMainThread } from 'worker_threads'; | |
6 | ||
7 | import chalk from 'chalk'; | |
8 | ||
9 | import { version } from '../../package.json'; | |
10 | import { Storage } from '../performance/storage/Storage'; | |
11 | import { StorageFactory } from '../performance/storage/StorageFactory'; | |
e7aeea18 JB |
12 | import { |
13 | ChargingStationWorkerData, | |
14 | ChargingStationWorkerMessage, | |
15 | ChargingStationWorkerMessageEvents, | |
16 | } from '../types/ChargingStationWorker'; | |
717c1e56 | 17 | import { StationTemplateUrl } from '../types/ConfigurationData'; |
c3ee95af | 18 | import Statistics from '../types/Statistics'; |
8114d10e JB |
19 | import { ApplicationProtocol } from '../types/UIProtocol'; |
20 | import Configuration from '../utils/Configuration'; | |
ded13d97 | 21 | import Utils from '../utils/Utils'; |
fd1fdf1b | 22 | import WorkerAbstract from '../worker/WorkerAbstract'; |
ded13d97 | 23 | import WorkerFactory from '../worker/WorkerFactory'; |
8114d10e JB |
24 | import { ChargingStationUtils } from './ChargingStationUtils'; |
25 | import { AbstractUIServer } from './ui-server/AbstractUIServer'; | |
26 | import { UIServiceUtils } from './ui-server/ui-services/UIServiceUtils'; | |
27 | import UIServerFactory from './ui-server/UIServerFactory'; | |
ded13d97 JB |
28 | |
29 | export default class Bootstrap { | |
535aaa27 | 30 | private static instance: Bootstrap | null = null; |
c3ee95af | 31 | private workerImplementation: WorkerAbstract<ChargingStationWorkerData> | null = null; |
fe94fce0 | 32 | private readonly uiServer!: AbstractUIServer; |
6a49ad23 | 33 | private readonly storage!: Storage; |
7c72977b JB |
34 | private numberOfChargingStationTemplates!: number; |
35 | private numberOfChargingStations!: number; | |
9e23580d | 36 | private readonly version: string = version; |
eb87fe87 | 37 | private started: boolean; |
9e23580d | 38 | private readonly workerScript: string; |
ded13d97 JB |
39 | |
40 | private constructor() { | |
eb87fe87 | 41 | this.started = false; |
e7aeea18 | 42 | this.workerScript = path.join( |
0d8140bd | 43 | path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'), |
e7aeea18 | 44 | 'charging-station', |
44a95b7f | 45 | 'ChargingStationWorker' + path.extname(fileURLToPath(import.meta.url)) |
e7aeea18 | 46 | ); |
7c72977b | 47 | this.initialize(); |
675fa8e3 | 48 | Configuration.getUIServer().enabled && |
fe94fce0 | 49 | (this.uiServer = UIServerFactory.getUIServerImplementation(ApplicationProtocol.WS, { |
675fa8e3 | 50 | ...Configuration.getUIServer().options, |
e7aeea18 JB |
51 | handleProtocols: UIServiceUtils.handleProtocols, |
52 | })); | |
53 | Configuration.getPerformanceStorage().enabled && | |
54 | (this.storage = StorageFactory.getStorage( | |
55 | Configuration.getPerformanceStorage().type, | |
56 | Configuration.getPerformanceStorage().uri, | |
57 | this.logPrefix() | |
58 | )); | |
7874b0b1 | 59 | Configuration.setConfigurationChangeCallback(async () => Bootstrap.getInstance().restart()); |
ded13d97 JB |
60 | } |
61 | ||
62 | public static getInstance(): Bootstrap { | |
63 | if (!Bootstrap.instance) { | |
64 | Bootstrap.instance = new Bootstrap(); | |
65 | } | |
66 | return Bootstrap.instance; | |
67 | } | |
68 | ||
69 | public async start(): Promise<void> { | |
eb87fe87 | 70 | if (isMainThread && !this.started) { |
ded13d97 | 71 | try { |
7c72977b | 72 | this.initialize(); |
6a49ad23 | 73 | await this.storage?.open(); |
a4bc2942 | 74 | await this.workerImplementation.start(); |
675fa8e3 | 75 | this.uiServer?.start(); |
1f5df42a | 76 | const stationTemplateUrls = Configuration.getStationTemplateUrls(); |
7c72977b | 77 | this.numberOfChargingStationTemplates = stationTemplateUrls.length; |
ded13d97 | 78 | // Start ChargingStation object in worker thread |
45bd0627 | 79 | if (!Utils.isEmptyArray(stationTemplateUrls)) { |
1f5df42a | 80 | for (const stationTemplateUrl of stationTemplateUrls) { |
ded13d97 | 81 | try { |
1f5df42a | 82 | const nbStations = stationTemplateUrl.numberOfStations ?? 0; |
ded13d97 | 83 | for (let index = 1; index <= nbStations; index++) { |
717c1e56 | 84 | await this.startChargingStation(index, stationTemplateUrl); |
ded13d97 JB |
85 | } |
86 | } catch (error) { | |
e7aeea18 JB |
87 | console.error( |
88 | chalk.red( | |
3d25cc86 JB |
89 | 'Error at starting charging station with template file ' + |
90 | stationTemplateUrl.file + | |
91 | ': ' | |
e7aeea18 JB |
92 | ), |
93 | error | |
94 | ); | |
ded13d97 JB |
95 | } |
96 | } | |
97 | } else { | |
45bd0627 JB |
98 | console.warn( |
99 | chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting") | |
100 | ); | |
ded13d97 | 101 | } |
a4bc2942 | 102 | if (this.numberOfChargingStations === 0) { |
e7aeea18 JB |
103 | console.warn( |
104 | chalk.yellow('No charging station template enabled in configuration, exiting') | |
105 | ); | |
ded13d97 | 106 | } else { |
e7aeea18 JB |
107 | console.log( |
108 | chalk.green( | |
109 | `Charging stations simulator ${ | |
110 | this.version | |
7c72977b | 111 | } started with ${this.numberOfChargingStations.toString()} charging station(s) from ${this.numberOfChargingStationTemplates.toString()} configured charging station template(s) and ${ |
17ac262c | 112 | ChargingStationUtils.workerDynamicPoolInUse() |
cf2a5d9b | 113 | ? `${Configuration.getWorker().poolMinSize.toString()}/` |
e7aeea18 JB |
114 | : '' |
115 | }${this.workerImplementation.size}${ | |
17ac262c | 116 | ChargingStationUtils.workerPoolInUse() |
cf2a5d9b | 117 | ? `/${Configuration.getWorker().poolMaxSize.toString()}` |
17ac262c | 118 | : '' |
cf2a5d9b | 119 | } worker(s) concurrently running in '${Configuration.getWorker().processType}' mode${ |
e7aeea18 JB |
120 | this.workerImplementation.maxElementsPerWorker |
121 | ? ` (${this.workerImplementation.maxElementsPerWorker} charging station(s) per worker)` | |
122 | : '' | |
123 | }` | |
124 | ) | |
125 | ); | |
ded13d97 | 126 | } |
eb87fe87 | 127 | this.started = true; |
ded13d97 | 128 | } catch (error) { |
8eac9a09 | 129 | console.error(chalk.red('Bootstrap start error '), error); |
ded13d97 | 130 | } |
b322b8b4 JB |
131 | } else { |
132 | console.error(chalk.red('Cannot start an already started charging stations simulator')); | |
ded13d97 JB |
133 | } |
134 | } | |
135 | ||
136 | public async stop(): Promise<void> { | |
eb87fe87 | 137 | if (isMainThread && this.started) { |
a4bc2942 | 138 | await this.workerImplementation.stop(); |
b19021e2 | 139 | this.workerImplementation = null; |
675fa8e3 | 140 | this.uiServer?.stop(); |
6a49ad23 | 141 | await this.storage?.close(); |
b322b8b4 JB |
142 | } else { |
143 | console.error(chalk.red('Trying to stop the charging stations simulator while not started')); | |
ded13d97 | 144 | } |
eb87fe87 | 145 | this.started = false; |
ded13d97 JB |
146 | } |
147 | ||
148 | public async restart(): Promise<void> { | |
149 | await this.stop(); | |
7c72977b | 150 | this.initialize(); |
ded13d97 JB |
151 | await this.start(); |
152 | } | |
153 | ||
ec7f4dce JB |
154 | private initializeWorkerImplementation(): void { |
155 | !this.workerImplementation && | |
156 | (this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>( | |
157 | this.workerScript, | |
cf2a5d9b | 158 | Configuration.getWorker().processType, |
ec7f4dce | 159 | { |
cf2a5d9b JB |
160 | workerStartDelay: Configuration.getWorker().startDelay, |
161 | elementStartDelay: Configuration.getWorker().elementStartDelay, | |
162 | poolMaxSize: Configuration.getWorker().poolMaxSize, | |
163 | poolMinSize: Configuration.getWorker().poolMinSize, | |
164 | elementsPerWorker: Configuration.getWorker().elementsPerWorker, | |
ec7f4dce | 165 | poolOptions: { |
cf2a5d9b | 166 | workerChoiceStrategy: Configuration.getWorker().poolStrategy, |
ec7f4dce JB |
167 | }, |
168 | messageHandler: async (msg: ChargingStationWorkerMessage) => { | |
169 | if (msg.id === ChargingStationWorkerMessageEvents.STARTED) { | |
170 | this.uiServer.chargingStations.add(msg.data.id as string); | |
171 | } else if (msg.id === ChargingStationWorkerMessageEvents.STOPPED) { | |
172 | this.uiServer.chargingStations.delete(msg.data.id as string); | |
173 | } else if (msg.id === ChargingStationWorkerMessageEvents.PERFORMANCE_STATISTICS) { | |
174 | await this.storage.storePerformanceStatistics(msg.data as unknown as Statistics); | |
175 | } | |
176 | }, | |
177 | } | |
178 | )); | |
ded13d97 | 179 | } |
81797102 | 180 | |
7c72977b JB |
181 | private initialize() { |
182 | this.numberOfChargingStations = 0; | |
183 | this.numberOfChargingStationTemplates = 0; | |
ec7f4dce | 184 | this.initializeWorkerImplementation(); |
7c72977b JB |
185 | } |
186 | ||
e7aeea18 JB |
187 | private async startChargingStation( |
188 | index: number, | |
189 | stationTemplateUrl: StationTemplateUrl | |
190 | ): Promise<void> { | |
717c1e56 JB |
191 | const workerData: ChargingStationWorkerData = { |
192 | index, | |
e7aeea18 | 193 | templateFile: path.join( |
0d8140bd | 194 | path.resolve(path.dirname(fileURLToPath(import.meta.url)), '../'), |
e7aeea18 JB |
195 | 'assets', |
196 | 'station-templates', | |
ee5f26a2 | 197 | stationTemplateUrl.file |
e7aeea18 | 198 | ), |
717c1e56 JB |
199 | }; |
200 | await this.workerImplementation.addElement(workerData); | |
201 | this.numberOfChargingStations++; | |
202 | } | |
203 | ||
81797102 | 204 | private logPrefix(): string { |
689dca78 | 205 | return Utils.logPrefix(' Bootstrap |'); |
81797102 | 206 | } |
ded13d97 | 207 | } |