Commit | Line | Data |
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edd13439 | 1 | // Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved. |
b4d34251 | 2 | |
f130b8e6 | 3 | import { EventEmitter } from 'node:events'; |
d972af76 | 4 | import { dirname, extname, join } from 'node:path'; |
36adaf06 | 5 | import process, { exit } from 'node:process'; |
130783a7 | 6 | import { fileURLToPath } from 'node:url'; |
8114d10e JB |
7 | |
8 | import chalk from 'chalk'; | |
8603c1ca | 9 | import { availableParallelism } from 'poolifier'; |
8114d10e | 10 | |
08b58f00 | 11 | import { waitChargingStationEvents } from './Helpers'; |
4c3c0d59 JB |
12 | import type { AbstractUIServer } from './ui-server/AbstractUIServer'; |
13 | import { UIServerFactory } from './ui-server/UIServerFactory'; | |
44ebef4c | 14 | import { version } from '../../package.json'; |
268a74bb | 15 | import { BaseError } from '../exception'; |
17bc43d7 | 16 | import { type Storage, StorageFactory } from '../performance'; |
e7aeea18 | 17 | import { |
bbe10d5f JB |
18 | type ChargingStationData, |
19 | type ChargingStationWorkerData, | |
20 | type ChargingStationWorkerMessage, | |
21 | type ChargingStationWorkerMessageData, | |
e7aeea18 | 22 | ChargingStationWorkerMessageEvents, |
5d049829 | 23 | ConfigurationSection, |
6bd808fd | 24 | ProcedureName, |
268a74bb JB |
25 | type StationTemplateUrl, |
26 | type Statistics, | |
5d049829 JB |
27 | type StorageConfiguration, |
28 | type UIServerConfiguration, | |
29 | type WorkerConfiguration, | |
268a74bb | 30 | } from '../types'; |
fa5995d6 JB |
31 | import { |
32 | Configuration, | |
33 | Constants, | |
9bf0ef23 JB |
34 | formatDurationMilliSeconds, |
35 | generateUUID, | |
fa5995d6 JB |
36 | handleUncaughtException, |
37 | handleUnhandledRejection, | |
9bf0ef23 JB |
38 | isNotEmptyArray, |
39 | isNullOrUndefined, | |
40 | logPrefix, | |
fa5995d6 JB |
41 | logger, |
42 | } from '../utils'; | |
eda9c451 | 43 | import { type WorkerAbstract, WorkerFactory } from '../worker'; |
ded13d97 | 44 | |
32de5a57 LM |
45 | const moduleName = 'Bootstrap'; |
46 | ||
a307349b | 47 | enum exitCodes { |
a51a4ead | 48 | succeeded = 0, |
a307349b JB |
49 | missingChargingStationsConfiguration = 1, |
50 | noChargingStationTemplates = 2, | |
a51a4ead | 51 | gracefulShutdownError = 3, |
a307349b | 52 | } |
e4cb2c14 | 53 | |
f130b8e6 | 54 | export class Bootstrap extends EventEmitter { |
535aaa27 | 55 | private static instance: Bootstrap | null = null; |
d1c99c59 JB |
56 | public numberOfChargingStations!: number; |
57 | public numberOfChargingStationTemplates!: number; | |
6d2b7d01 JB |
58 | private workerImplementation?: WorkerAbstract<ChargingStationWorkerData>; |
59 | private readonly uiServer?: AbstractUIServer; | |
60 | private storage?: Storage; | |
89b7a234 | 61 | private numberOfStartedChargingStations!: number; |
628c30e5 | 62 | private readonly version: string = version; |
a596d200 | 63 | private initializedCounters: boolean; |
eb87fe87 | 64 | private started: boolean; |
82e9c15a JB |
65 | private starting: boolean; |
66 | private stopping: boolean; | |
ded13d97 JB |
67 | |
68 | private constructor() { | |
f130b8e6 | 69 | super(); |
6bd808fd | 70 | for (const signal of ['SIGINT', 'SIGQUIT', 'SIGTERM']) { |
36adaf06 | 71 | process.on(signal, this.gracefulShutdown.bind(this)); |
6bd808fd | 72 | } |
4724a293 | 73 | // Enable unconditionally for now |
fa5995d6 JB |
74 | handleUnhandledRejection(); |
75 | handleUncaughtException(); | |
af8e02ca | 76 | this.started = false; |
82e9c15a JB |
77 | this.starting = false; |
78 | this.stopping = false; | |
0f040ac0 | 79 | this.initializedCounters = false; |
a596d200 | 80 | this.initializeCounters(); |
36adaf06 JB |
81 | this.uiServer = UIServerFactory.getUIServerImplementation( |
82 | Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer), | |
864e5f8d | 83 | ); |
b3b3f0eb | 84 | Configuration.configurationChangeCallback = async () => Bootstrap.getInstance().restart(false); |
ded13d97 JB |
85 | } |
86 | ||
87 | public static getInstance(): Bootstrap { | |
1ca780f9 | 88 | if (Bootstrap.instance === null) { |
ded13d97 JB |
89 | Bootstrap.instance = new Bootstrap(); |
90 | } | |
91 | return Bootstrap.instance; | |
92 | } | |
93 | ||
94 | public async start(): Promise<void> { | |
ee60150f | 95 | if (this.started === false) { |
82e9c15a JB |
96 | if (this.starting === false) { |
97 | this.starting = true; | |
4354af5a JB |
98 | this.on(ChargingStationWorkerMessageEvents.started, this.workerEventStarted); |
99 | this.on(ChargingStationWorkerMessageEvents.stopped, this.workerEventStopped); | |
100 | this.on(ChargingStationWorkerMessageEvents.updated, this.workerEventUpdated); | |
101 | this.on( | |
102 | ChargingStationWorkerMessageEvents.performanceStatistics, | |
103 | this.workerEventPerformanceStatistics, | |
104 | ); | |
82e9c15a | 105 | this.initializeCounters(); |
5b373a23 | 106 | const workerConfiguration = Configuration.getConfigurationSection<WorkerConfiguration>( |
864e5f8d JB |
107 | ConfigurationSection.worker, |
108 | ); | |
5b373a23 | 109 | this.initializeWorkerImplementation(workerConfiguration); |
82e9c15a | 110 | await this.workerImplementation?.start(); |
6d2b7d01 JB |
111 | const performanceStorageConfiguration = |
112 | Configuration.getConfigurationSection<StorageConfiguration>( | |
113 | ConfigurationSection.performanceStorage, | |
114 | ); | |
115 | if (performanceStorageConfiguration.enabled === true) { | |
116 | this.storage = StorageFactory.getStorage( | |
117 | performanceStorageConfiguration.type!, | |
118 | performanceStorageConfiguration.uri!, | |
119 | this.logPrefix(), | |
120 | ); | |
121 | await this.storage?.open(); | |
122 | } | |
36adaf06 JB |
123 | Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer) |
124 | .enabled === true && this.uiServer?.start(); | |
82e9c15a | 125 | // Start ChargingStation object instance in worker thread |
e1d9a0f4 | 126 | for (const stationTemplateUrl of Configuration.getStationTemplateUrls()!) { |
82e9c15a JB |
127 | try { |
128 | const nbStations = stationTemplateUrl.numberOfStations ?? 0; | |
129 | for (let index = 1; index <= nbStations; index++) { | |
130 | await this.startChargingStation(index, stationTemplateUrl); | |
131 | } | |
132 | } catch (error) { | |
133 | console.error( | |
134 | chalk.red( | |
5edd8ba0 | 135 | `Error at starting charging station with template file ${stationTemplateUrl.file}: `, |
82e9c15a | 136 | ), |
5edd8ba0 | 137 | error, |
82e9c15a | 138 | ); |
ded13d97 | 139 | } |
ded13d97 | 140 | } |
82e9c15a JB |
141 | console.info( |
142 | chalk.green( | |
143 | `Charging stations simulator ${ | |
144 | this.version | |
145 | } started with ${this.numberOfChargingStations.toString()} charging station(s) from ${this.numberOfChargingStationTemplates.toString()} configured charging station template(s) and ${ | |
146 | Configuration.workerDynamicPoolInUse() | |
5b373a23 | 147 | ? `${workerConfiguration.poolMinSize?.toString()}/` |
82e9c15a JB |
148 | : '' |
149 | }${this.workerImplementation?.size}${ | |
150 | Configuration.workerPoolInUse() | |
5b373a23 | 151 | ? `/${workerConfiguration.poolMaxSize?.toString()}` |
82e9c15a | 152 | : '' |
5b373a23 | 153 | } worker(s) concurrently running in '${workerConfiguration.processType}' mode${ |
9bf0ef23 | 154 | !isNullOrUndefined(this.workerImplementation?.maxElementsPerWorker) |
82e9c15a JB |
155 | ? ` (${this.workerImplementation?.maxElementsPerWorker} charging station(s) per worker)` |
156 | : '' | |
5edd8ba0 JB |
157 | }`, |
158 | ), | |
82e9c15a | 159 | ); |
56e2e1ab JB |
160 | Configuration.workerDynamicPoolInUse() && |
161 | console.warn( | |
162 | chalk.yellow( | |
1d8f226b | 163 | 'Charging stations simulator is using dynamic pool mode. This is an experimental feature with known issues.\nPlease consider using fixed pool or worker set mode instead', |
5edd8ba0 | 164 | ), |
56e2e1ab | 165 | ); |
0bde1ea1 | 166 | console.info(chalk.green('Worker set/pool information:'), this.workerImplementation?.info); |
82e9c15a JB |
167 | this.started = true; |
168 | this.starting = false; | |
169 | } else { | |
170 | console.error(chalk.red('Cannot start an already starting charging stations simulator')); | |
ded13d97 | 171 | } |
b322b8b4 JB |
172 | } else { |
173 | console.error(chalk.red('Cannot start an already started charging stations simulator')); | |
ded13d97 JB |
174 | } |
175 | } | |
176 | ||
36adaf06 | 177 | public async stop(stopChargingStations = true): Promise<void> { |
ee60150f | 178 | if (this.started === true) { |
82e9c15a JB |
179 | if (this.stopping === false) { |
180 | this.stopping = true; | |
36adaf06 JB |
181 | if (stopChargingStations === true) { |
182 | await this.uiServer?.sendInternalRequest( | |
183 | this.uiServer.buildProtocolRequest( | |
184 | generateUUID(), | |
185 | ProcedureName.STOP_CHARGING_STATION, | |
186 | Constants.EMPTY_FROZEN_OBJECT, | |
ab7a96fa | 187 | ), |
36adaf06 | 188 | ); |
5b2721db JB |
189 | try { |
190 | await this.waitChargingStationsStopped(); | |
191 | } catch (error) { | |
192 | console.error(chalk.red('Error while waiting for charging stations to stop: '), error); | |
193 | } | |
ab7a96fa | 194 | } |
82e9c15a | 195 | await this.workerImplementation?.stop(); |
6d2b7d01 | 196 | delete this.workerImplementation; |
82e9c15a JB |
197 | this.uiServer?.stop(); |
198 | await this.storage?.close(); | |
6d2b7d01 | 199 | delete this.storage; |
82e9c15a JB |
200 | this.resetCounters(); |
201 | this.initializedCounters = false; | |
202 | this.started = false; | |
203 | this.stopping = false; | |
204 | } else { | |
205 | console.error(chalk.red('Cannot stop an already stopping charging stations simulator')); | |
206 | } | |
b322b8b4 | 207 | } else { |
82e9c15a | 208 | console.error(chalk.red('Cannot stop an already stopped charging stations simulator')); |
ded13d97 | 209 | } |
ded13d97 JB |
210 | } |
211 | ||
36adaf06 JB |
212 | public async restart(stopChargingStations?: boolean): Promise<void> { |
213 | await this.stop(stopChargingStations); | |
ded13d97 JB |
214 | await this.start(); |
215 | } | |
216 | ||
5b2721db JB |
217 | private async waitChargingStationsStopped(): Promise<string> { |
218 | return new Promise<string>((resolve, reject) => { | |
219 | const waitTimeout = setTimeout(() => { | |
220 | const message = `Timeout ${formatDurationMilliSeconds( | |
d81db081 | 221 | Constants.STOP_CHARGING_STATIONS_TIMEOUT, |
5b2721db JB |
222 | )} reached at stopping charging stations`; |
223 | console.warn(chalk.yellow(message)); | |
224 | reject(new Error(message)); | |
d81db081 | 225 | }, Constants.STOP_CHARGING_STATIONS_TIMEOUT); |
36adaf06 JB |
226 | waitChargingStationEvents( |
227 | this, | |
228 | ChargingStationWorkerMessageEvents.stopped, | |
229 | this.numberOfChargingStations, | |
5b2721db JB |
230 | ) |
231 | .then(() => { | |
4354af5a | 232 | this.removeAllListeners(); |
5b2721db JB |
233 | resolve('Charging stations stopped'); |
234 | }) | |
b7ee97c1 | 235 | .catch(reject) |
5b2721db JB |
236 | .finally(() => { |
237 | clearTimeout(waitTimeout); | |
238 | }); | |
239 | }); | |
36adaf06 JB |
240 | } |
241 | ||
864e5f8d | 242 | private initializeWorkerImplementation(workerConfiguration: WorkerConfiguration): void { |
e1d9a0f4 | 243 | let elementsPerWorker: number | undefined; |
487f0dfd JB |
244 | switch (workerConfiguration?.elementsPerWorker) { |
245 | case 'auto': | |
246 | elementsPerWorker = | |
247 | this.numberOfChargingStations > availableParallelism() | |
248 | ? Math.round(this.numberOfChargingStations / (availableParallelism() * 1.5)) | |
249 | : 1; | |
250 | break; | |
c20d5d72 | 251 | case 'all': |
487f0dfd JB |
252 | elementsPerWorker = this.numberOfChargingStations; |
253 | break; | |
8603c1ca | 254 | } |
6d2b7d01 JB |
255 | this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>( |
256 | join( | |
257 | dirname(fileURLToPath(import.meta.url)), | |
258 | `ChargingStationWorker${extname(fileURLToPath(import.meta.url))}`, | |
259 | ), | |
260 | workerConfiguration.processType!, | |
261 | { | |
262 | workerStartDelay: workerConfiguration.startDelay, | |
263 | elementStartDelay: workerConfiguration.elementStartDelay, | |
264 | poolMaxSize: workerConfiguration.poolMaxSize!, | |
265 | poolMinSize: workerConfiguration.poolMinSize!, | |
266 | elementsPerWorker: elementsPerWorker ?? (workerConfiguration.elementsPerWorker as number), | |
267 | poolOptions: { | |
268 | messageHandler: this.messageHandler.bind(this) as (message: unknown) => void, | |
487f0dfd | 269 | workerOptions: { resourceLimits: workerConfiguration.resourceLimits }, |
5edd8ba0 | 270 | }, |
6d2b7d01 JB |
271 | }, |
272 | ); | |
ded13d97 | 273 | } |
81797102 | 274 | |
32de5a57 | 275 | private messageHandler( |
5edd8ba0 | 276 | msg: ChargingStationWorkerMessage<ChargingStationWorkerMessageData>, |
32de5a57 LM |
277 | ): void { |
278 | // logger.debug( | |
279 | // `${this.logPrefix()} ${moduleName}.messageHandler: Worker channel message received: ${JSON.stringify( | |
280 | // msg, | |
4ed03b6e | 281 | // undefined, |
e1d9a0f4 JB |
282 | // 2, |
283 | // )}`, | |
32de5a57 LM |
284 | // ); |
285 | try { | |
8cc482a9 | 286 | switch (msg.event) { |
721646e9 | 287 | case ChargingStationWorkerMessageEvents.started: |
f130b8e6 | 288 | this.emit(ChargingStationWorkerMessageEvents.started, msg.data as ChargingStationData); |
32de5a57 | 289 | break; |
721646e9 | 290 | case ChargingStationWorkerMessageEvents.stopped: |
f130b8e6 | 291 | this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data as ChargingStationData); |
32de5a57 | 292 | break; |
721646e9 | 293 | case ChargingStationWorkerMessageEvents.updated: |
f130b8e6 | 294 | this.emit(ChargingStationWorkerMessageEvents.updated, msg.data as ChargingStationData); |
32de5a57 | 295 | break; |
721646e9 | 296 | case ChargingStationWorkerMessageEvents.performanceStatistics: |
f130b8e6 JB |
297 | this.emit( |
298 | ChargingStationWorkerMessageEvents.performanceStatistics, | |
5edd8ba0 | 299 | msg.data as Statistics, |
f130b8e6 | 300 | ); |
32de5a57 | 301 | break; |
2bb7a73e JB |
302 | case ChargingStationWorkerMessageEvents.startWorkerElementError: |
303 | logger.error( | |
304 | `${this.logPrefix()} ${moduleName}.messageHandler: Error occured while starting worker element:`, | |
305 | msg.data, | |
306 | ); | |
307 | this.emit(ChargingStationWorkerMessageEvents.startWorkerElementError, msg.data); | |
308 | break; | |
309 | case ChargingStationWorkerMessageEvents.startedWorkerElement: | |
310 | break; | |
32de5a57 LM |
311 | default: |
312 | throw new BaseError( | |
f93dda6a JB |
313 | `Unknown charging station worker event: '${ |
314 | msg.event | |
4ed03b6e | 315 | }' received with data: ${JSON.stringify(msg.data, undefined, 2)}`, |
32de5a57 LM |
316 | ); |
317 | } | |
318 | } catch (error) { | |
319 | logger.error( | |
320 | `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while handling '${ | |
8cc482a9 | 321 | msg.event |
32de5a57 | 322 | }' event:`, |
5edd8ba0 | 323 | error, |
32de5a57 LM |
324 | ); |
325 | } | |
326 | } | |
327 | ||
e2c77f10 | 328 | private workerEventStarted = (data: ChargingStationData) => { |
51c83d6f | 329 | this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); |
89b7a234 | 330 | ++this.numberOfStartedChargingStations; |
56eb297e | 331 | logger.info( |
e6159ce8 | 332 | `${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${ |
56eb297e | 333 | data.stationInfo.chargingStationId |
e6159ce8 | 334 | } (hashId: ${data.stationInfo.hashId}) started (${ |
56eb297e | 335 | this.numberOfStartedChargingStations |
5edd8ba0 | 336 | } started from ${this.numberOfChargingStations})`, |
56eb297e | 337 | ); |
e2c77f10 | 338 | }; |
32de5a57 | 339 | |
e2c77f10 | 340 | private workerEventStopped = (data: ChargingStationData) => { |
51c83d6f | 341 | this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); |
89b7a234 | 342 | --this.numberOfStartedChargingStations; |
56eb297e | 343 | logger.info( |
e6159ce8 | 344 | `${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${ |
56eb297e | 345 | data.stationInfo.chargingStationId |
e6159ce8 | 346 | } (hashId: ${data.stationInfo.hashId}) stopped (${ |
56eb297e | 347 | this.numberOfStartedChargingStations |
5edd8ba0 | 348 | } started from ${this.numberOfChargingStations})`, |
56eb297e | 349 | ); |
e2c77f10 | 350 | }; |
32de5a57 | 351 | |
e2c77f10 | 352 | private workerEventUpdated = (data: ChargingStationData) => { |
51c83d6f | 353 | this.uiServer?.chargingStations.set(data.stationInfo.hashId, data); |
e2c77f10 | 354 | }; |
32de5a57 LM |
355 | |
356 | private workerEventPerformanceStatistics = (data: Statistics) => { | |
6d2b7d01 | 357 | this.storage?.storePerformanceStatistics(data) as void; |
32de5a57 LM |
358 | }; |
359 | ||
326cec2d | 360 | private initializeCounters() { |
a596d200 | 361 | if (this.initializedCounters === false) { |
0f040ac0 | 362 | this.resetCounters(); |
e1d9a0f4 | 363 | const stationTemplateUrls = Configuration.getStationTemplateUrls()!; |
9bf0ef23 | 364 | if (isNotEmptyArray(stationTemplateUrls)) { |
41bda658 | 365 | this.numberOfChargingStationTemplates = stationTemplateUrls.length; |
7436ee0d | 366 | for (const stationTemplateUrl of stationTemplateUrls) { |
a596d200 | 367 | this.numberOfChargingStations += stationTemplateUrl.numberOfStations ?? 0; |
7436ee0d | 368 | } |
a596d200 JB |
369 | } else { |
370 | console.warn( | |
5edd8ba0 | 371 | chalk.yellow("'stationTemplateUrls' not defined or empty in configuration, exiting"), |
a596d200 | 372 | ); |
10687422 | 373 | exit(exitCodes.missingChargingStationsConfiguration); |
a596d200 JB |
374 | } |
375 | if (this.numberOfChargingStations === 0) { | |
376 | console.warn( | |
5edd8ba0 | 377 | chalk.yellow('No charging station template enabled in configuration, exiting'), |
a596d200 | 378 | ); |
10687422 | 379 | exit(exitCodes.noChargingStationTemplates); |
a596d200 | 380 | } |
a596d200 | 381 | this.initializedCounters = true; |
846d2851 | 382 | } |
7c72977b JB |
383 | } |
384 | ||
0f040ac0 JB |
385 | private resetCounters(): void { |
386 | this.numberOfChargingStationTemplates = 0; | |
387 | this.numberOfChargingStations = 0; | |
388 | this.numberOfStartedChargingStations = 0; | |
389 | } | |
390 | ||
e7aeea18 JB |
391 | private async startChargingStation( |
392 | index: number, | |
5edd8ba0 | 393 | stationTemplateUrl: StationTemplateUrl, |
e7aeea18 | 394 | ): Promise<void> { |
6ed3c845 | 395 | await this.workerImplementation?.addElement({ |
717c1e56 | 396 | index, |
d972af76 JB |
397 | templateFile: join( |
398 | dirname(fileURLToPath(import.meta.url)), | |
e7aeea18 JB |
399 | 'assets', |
400 | 'station-templates', | |
5edd8ba0 | 401 | stationTemplateUrl.file, |
e7aeea18 | 402 | ), |
6ed3c845 | 403 | }); |
717c1e56 JB |
404 | } |
405 | ||
36adaf06 | 406 | private gracefulShutdown(): void { |
f130b8e6 JB |
407 | this.stop() |
408 | .then(() => { | |
83a36f14 | 409 | console.info(`${chalk.green('Graceful shutdown')}`); |
36adaf06 JB |
410 | // stop() asks for charging stations to stop by default |
411 | this.waitChargingStationsStopped() | |
412 | .then(() => { | |
413 | exit(exitCodes.succeeded); | |
414 | }) | |
5b2721db | 415 | .catch(() => { |
36adaf06 JB |
416 | exit(exitCodes.gracefulShutdownError); |
417 | }); | |
f130b8e6 JB |
418 | }) |
419 | .catch((error) => { | |
fca8bc64 | 420 | console.error(chalk.red('Error while shutdowning charging stations simulator: '), error); |
10687422 | 421 | exit(exitCodes.gracefulShutdownError); |
f130b8e6 | 422 | }); |
36adaf06 | 423 | } |
f130b8e6 | 424 | |
8b7072dc | 425 | private logPrefix = (): string => { |
9bf0ef23 | 426 | return logPrefix(' Bootstrap |'); |
8b7072dc | 427 | }; |
ded13d97 | 428 | } |