// Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
import { EventEmitter } from 'node:events'
-import { dirname, extname, join, parse } from 'node:path'
+import { dirname, extname, join } from 'node:path'
import process, { exit } from 'node:process'
import { fileURLToPath } from 'node:url'
import { isMainThread } from 'node:worker_threads'
-import type { Worker } from 'worker_threads'
import chalk from 'chalk'
-import { type MessageHandler, availableParallelism } from 'poolifier'
+import { availableParallelism, type MessageHandler } from 'poolifier'
+import type { Worker } from 'worker_threads'
-import { waitChargingStationEvents } from './Helpers.js'
-import type { AbstractUIServer } from './ui-server/AbstractUIServer.js'
-import { UIServerFactory } from './ui-server/UIServerFactory.js'
import { version } from '../../package.json'
import { BaseError } from '../exception/index.js'
import { type Storage, StorageFactory } from '../performance/index.js'
import {
type ChargingStationData,
+ type ChargingStationInfo,
+ type ChargingStationOptions,
type ChargingStationWorkerData,
type ChargingStationWorkerMessage,
type ChargingStationWorkerMessageData,
ChargingStationWorkerMessageEvents,
ConfigurationSection,
ProcedureName,
+ type SimulatorState,
type Statistics,
type StorageConfiguration,
+ type TemplateStatistics,
type UIServerConfiguration,
type WorkerConfiguration
} from '../types/index.js'
handleUnhandledRejection,
isAsyncFunction,
isNotEmptyArray,
- logPrefix,
logger,
- max
+ logPrefix
} from '../utils/index.js'
-import { type WorkerAbstract, WorkerFactory } from '../worker/index.js'
+import { DEFAULT_ELEMENTS_PER_WORKER, type WorkerAbstract, WorkerFactory } from '../worker/index.js'
+import { buildTemplateName, waitChargingStationEvents } from './Helpers.js'
+import type { AbstractUIServer } from './ui-server/AbstractUIServer.js'
+import { UIServerFactory } from './ui-server/UIServerFactory.js'
const moduleName = 'Bootstrap'
gracefulShutdownError = 4
}
-interface TemplateChargingStations {
- configured: number
- started: number
- lastIndex: number
-}
-
export class Bootstrap extends EventEmitter {
private static instance: Bootstrap | null = null
- private workerImplementation?: WorkerAbstract<ChargingStationWorkerData>
- private readonly uiServer?: AbstractUIServer
+ private workerImplementation?: WorkerAbstract<ChargingStationWorkerData, ChargingStationInfo>
+ private readonly uiServer: AbstractUIServer
private storage?: Storage
- private readonly chargingStationsByTemplate: Map<string, TemplateChargingStations>
+ private readonly templateStatistics: Map<string, TemplateStatistics>
private readonly version: string = version
- private initializedCounters: boolean
private started: boolean
private starting: boolean
private stopping: boolean
+ private uiServerStarted: boolean
private constructor () {
super()
this.started = false
this.starting = false
this.stopping = false
- this.chargingStationsByTemplate = new Map<string, TemplateChargingStations>()
+ this.uiServerStarted = false
+ this.templateStatistics = new Map<string, TemplateStatistics>()
this.uiServer = UIServerFactory.getUIServerImplementation(
Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
)
- this.initializedCounters = false
this.initializeCounters()
+ this.initializeWorkerImplementation(
+ Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+ )
Configuration.configurationChangeCallback = async () => {
if (isMainThread) {
await Bootstrap.getInstance().restart()
}
public get numberOfChargingStationTemplates (): number {
- return this.chargingStationsByTemplate.size
+ return this.templateStatistics.size
}
public get numberOfConfiguredChargingStations (): number {
- return [...this.chargingStationsByTemplate.values()].reduce(
+ return [...this.templateStatistics.values()].reduce(
(accumulator, value) => accumulator + value.configured,
0
)
}
+ public getState (): SimulatorState {
+ return {
+ version: this.version,
+ started: this.started,
+ templateStatistics: this.templateStatistics
+ }
+ }
+
public getLastIndex (templateName: string): number {
- return this.chargingStationsByTemplate.get(templateName)?.lastIndex ?? 0
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const indexes = [...this.templateStatistics.get(templateName)!.indexes]
+ .concat(0)
+ .sort((a, b) => a - b)
+ for (let i = 0; i < indexes.length - 1; i++) {
+ if (indexes[i + 1] - indexes[i] !== 1) {
+ return indexes[i]
+ }
+ }
+ return indexes[indexes.length - 1]
+ }
+
+ public getPerformanceStatistics (): IterableIterator<Statistics> | undefined {
+ return this.storage?.getPerformanceStatistics()
+ }
+
+ private get numberOfAddedChargingStations (): number {
+ return [...this.templateStatistics.values()].reduce(
+ (accumulator, value) => accumulator + value.added,
+ 0
+ )
}
private get numberOfStartedChargingStations (): number {
- return [...this.chargingStationsByTemplate.values()].reduce(
+ return [...this.templateStatistics.values()].reduce(
(accumulator, value) => accumulator + value.started,
0
)
if (!this.started) {
if (!this.starting) {
this.starting = true
+ this.on(ChargingStationWorkerMessageEvents.added, this.workerEventAdded)
+ this.on(ChargingStationWorkerMessageEvents.deleted, this.workerEventDeleted)
this.on(ChargingStationWorkerMessageEvents.started, this.workerEventStarted)
this.on(ChargingStationWorkerMessageEvents.stopped, this.workerEventStopped)
this.on(ChargingStationWorkerMessageEvents.updated, this.workerEventUpdated)
ChargingStationWorkerMessageEvents.performanceStatistics,
this.workerEventPerformanceStatistics
)
- this.initializeCounters()
- const workerConfiguration = Configuration.getConfigurationSection<WorkerConfiguration>(
- ConfigurationSection.worker
- )
- this.initializeWorkerImplementation(workerConfiguration)
- await this.workerImplementation?.start()
+ // eslint-disable-next-line @typescript-eslint/unbound-method
+ if (isAsyncFunction(this.workerImplementation?.start)) {
+ await this.workerImplementation.start()
+ } else {
+ (this.workerImplementation?.start as () => void)()
+ }
const performanceStorageConfiguration =
Configuration.getConfigurationSection<StorageConfiguration>(
ConfigurationSection.performanceStorage
)
await this.storage?.open()
}
- Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
- .enabled === true && this.uiServer?.start()
+ if (
+ !this.uiServerStarted &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(
+ ConfigurationSection.uiServer
+ ).enabled === true
+ ) {
+ this.uiServer.start()
+ this.uiServerStarted = true
+ }
// Start ChargingStation object instance in worker thread
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
for (const stationTemplateUrl of Configuration.getStationTemplateUrls()!) {
try {
- const nbStations =
- this.chargingStationsByTemplate.get(parse(stationTemplateUrl.file).name)
- ?.configured ?? stationTemplateUrl.numberOfStations
+ const nbStations = stationTemplateUrl.numberOfStations
for (let index = 1; index <= nbStations; index++) {
await this.addChargingStation(index, stationTemplateUrl.file)
}
)
}
}
+ const workerConfiguration = Configuration.getConfigurationSection<WorkerConfiguration>(
+ ConfigurationSection.worker
+ )
console.info(
chalk.green(
`Charging stations simulator ${
if (this.started) {
if (!this.stopping) {
this.stopping = true
- await this.uiServer?.sendInternalRequest(
+ await this.uiServer.sendInternalRequest(
this.uiServer.buildProtocolRequest(
generateUUID(),
ProcedureName.STOP_CHARGING_STATION,
console.error(chalk.red('Error while waiting for charging stations to stop: '), error)
}
await this.workerImplementation?.stop()
- delete this.workerImplementation
this.removeAllListeners()
+ this.uiServer.clearCaches()
await this.storage?.close()
delete this.storage
this.started = false
private async restart (): Promise<void> {
await this.stop()
- Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
- .enabled === false && this.uiServer?.stop()
- this.initializedCounters = false
+ if (
+ this.uiServerStarted &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
+ .enabled !== true
+ ) {
+ this.uiServer.stop()
+ this.uiServerStarted = false
+ }
+ this.initializeCounters()
+ // FIXME: initialize worker implementation only if the worker section has changed
+ this.initializeWorkerImplementation(
+ Configuration.getConfigurationSection<WorkerConfiguration>(ConfigurationSection.worker)
+ )
await this.start()
}
private async waitChargingStationsStopped (): Promise<string> {
- return await new Promise<string>((resolve, reject) => {
+ return await new Promise<string>((resolve, reject: (reason?: unknown) => void) => {
const waitTimeout = setTimeout(() => {
const timeoutMessage = `Timeout ${formatDurationMilliSeconds(
Constants.STOP_CHARGING_STATIONS_TIMEOUT
if (!isMainThread) {
return
}
- let elementsPerWorker: number | undefined
+ let elementsPerWorker: number
switch (workerConfiguration.elementsPerWorker) {
+ case 'all':
+ elementsPerWorker = this.numberOfConfiguredChargingStations
+ break
case 'auto':
elementsPerWorker =
this.numberOfConfiguredChargingStations > availableParallelism()
? Math.round(this.numberOfConfiguredChargingStations / (availableParallelism() * 1.5))
: 1
break
- case 'all':
- elementsPerWorker = this.numberOfConfiguredChargingStations
- break
+ default:
+ elementsPerWorker = workerConfiguration.elementsPerWorker ?? DEFAULT_ELEMENTS_PER_WORKER
}
- this.workerImplementation = WorkerFactory.getWorkerImplementation<ChargingStationWorkerData>(
+ this.workerImplementation = WorkerFactory.getWorkerImplementation<
+ ChargingStationWorkerData,
+ ChargingStationInfo
+ >(
join(
dirname(fileURLToPath(import.meta.url)),
`ChargingStationWorker${extname(fileURLToPath(import.meta.url))}`
workerConfiguration.processType!,
{
workerStartDelay: workerConfiguration.startDelay,
- elementStartDelay: workerConfiguration.elementStartDelay,
+ elementAddDelay: workerConfiguration.elementAddDelay,
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
poolMaxSize: workerConfiguration.poolMaxSize!,
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
poolMinSize: workerConfiguration.poolMinSize!,
- elementsPerWorker: elementsPerWorker ?? (workerConfiguration.elementsPerWorker as number),
+ elementsPerWorker,
poolOptions: {
messageHandler: this.messageHandler.bind(this) as MessageHandler<Worker>,
- workerOptions: { resourceLimits: workerConfiguration.resourceLimits }
+ ...(workerConfiguration.resourceLimits != null && {
+ workerOptions: { resourceLimits: workerConfiguration.resourceLimits }
+ })
}
}
)
// )
try {
switch (msg.event) {
+ case ChargingStationWorkerMessageEvents.added:
+ this.emit(ChargingStationWorkerMessageEvents.added, msg.data)
+ break
+ case ChargingStationWorkerMessageEvents.deleted:
+ this.emit(ChargingStationWorkerMessageEvents.deleted, msg.data)
+ break
case ChargingStationWorkerMessageEvents.started:
- this.emit(ChargingStationWorkerMessageEvents.started, msg.data as ChargingStationData)
+ this.emit(ChargingStationWorkerMessageEvents.started, msg.data)
break
case ChargingStationWorkerMessageEvents.stopped:
- this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data as ChargingStationData)
+ this.emit(ChargingStationWorkerMessageEvents.stopped, msg.data)
break
case ChargingStationWorkerMessageEvents.updated:
- this.emit(ChargingStationWorkerMessageEvents.updated, msg.data as ChargingStationData)
+ this.emit(ChargingStationWorkerMessageEvents.updated, msg.data)
break
case ChargingStationWorkerMessageEvents.performanceStatistics:
- this.emit(
- ChargingStationWorkerMessageEvents.performanceStatistics,
- msg.data as Statistics
- )
- break
- case ChargingStationWorkerMessageEvents.startWorkerElementError:
- logger.error(
- `${this.logPrefix()} ${moduleName}.messageHandler: Error occurred while starting worker element:`,
- msg.data
- )
- this.emit(ChargingStationWorkerMessageEvents.startWorkerElementError, msg.data)
- break
- case ChargingStationWorkerMessageEvents.startedWorkerElement:
+ this.emit(ChargingStationWorkerMessageEvents.performanceStatistics, msg.data)
break
default:
throw new BaseError(
}
}
+ private readonly workerEventAdded = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventAdded: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) added (${
+ this.numberOfAddedChargingStations
+ } added from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ )
+ }
+
+ private readonly workerEventDeleted = (data: ChargingStationData): void => {
+ this.uiServer.chargingStations.delete(data.stationInfo.hashId)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const templateStatistics = this.templateStatistics.get(data.stationInfo.templateName)!
+ --templateStatistics.added
+ templateStatistics.indexes.delete(data.stationInfo.templateIndex)
+ logger.info(
+ `${this.logPrefix()} ${moduleName}.workerEventDeleted: Charging station ${
+ data.stationInfo.chargingStationId
+ } (hashId: ${data.stationInfo.hashId}) deleted (${
+ this.numberOfAddedChargingStations
+ } added from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ )
+ }
+
private readonly workerEventStarted = (data: ChargingStationData): void => {
- this.uiServer?.chargingStations.set(data.stationInfo.hashId, data)
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- ++this.chargingStationsByTemplate.get(data.stationInfo.templateName)!.started
+ ++this.templateStatistics.get(data.stationInfo.templateName)!.started
logger.info(
`${this.logPrefix()} ${moduleName}.workerEventStarted: Charging station ${
data.stationInfo.chargingStationId
} (hashId: ${data.stationInfo.hashId}) started (${
this.numberOfStartedChargingStations
- } started from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ } started from ${this.numberOfAddedChargingStations} added charging station(s))`
)
}
private readonly workerEventStopped = (data: ChargingStationData): void => {
- this.uiServer?.chargingStations.set(data.stationInfo.hashId, data)
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- --this.chargingStationsByTemplate.get(data.stationInfo.templateName)!.started
+ --this.templateStatistics.get(data.stationInfo.templateName)!.started
logger.info(
`${this.logPrefix()} ${moduleName}.workerEventStopped: Charging station ${
data.stationInfo.chargingStationId
} (hashId: ${data.stationInfo.hashId}) stopped (${
this.numberOfStartedChargingStations
- } started from ${this.numberOfConfiguredChargingStations} configured charging station(s))`
+ } started from ${this.numberOfAddedChargingStations} added charging station(s))`
)
}
private readonly workerEventUpdated = (data: ChargingStationData): void => {
- this.uiServer?.chargingStations.set(data.stationInfo.hashId, data)
+ this.uiServer.chargingStations.set(data.stationInfo.hashId, data)
}
private readonly workerEventPerformanceStatistics = (data: Statistics): void => {
}
private initializeCounters (): void {
- if (!this.initializedCounters) {
- // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- const stationTemplateUrls = Configuration.getStationTemplateUrls()!
- if (isNotEmptyArray(stationTemplateUrls)) {
- for (const stationTemplateUrl of stationTemplateUrls) {
- const templateName = parse(stationTemplateUrl.file).name
- this.chargingStationsByTemplate.set(templateName, {
- configured: stationTemplateUrl.numberOfStations,
- started: 0,
- lastIndex: 0
- })
- this.uiServer?.chargingStationTemplates.add(templateName)
- }
- if (this.chargingStationsByTemplate.size !== stationTemplateUrls.length) {
- console.error(
- chalk.red(
- "'stationTemplateUrls' contains duplicate entries, please check your configuration"
- )
- )
- exit(exitCodes.duplicateChargingStationTemplateUrls)
- }
- } else {
- console.error(
- chalk.red("'stationTemplateUrls' not defined or empty, please check your configuration")
- )
- exit(exitCodes.missingChargingStationsConfiguration)
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ const stationTemplateUrls = Configuration.getStationTemplateUrls()!
+ if (isNotEmptyArray(stationTemplateUrls)) {
+ for (const stationTemplateUrl of stationTemplateUrls) {
+ const templateName = buildTemplateName(stationTemplateUrl.file)
+ this.templateStatistics.set(templateName, {
+ configured: stationTemplateUrl.numberOfStations,
+ added: 0,
+ started: 0,
+ indexes: new Set<number>()
+ })
+ this.uiServer.chargingStationTemplates.add(templateName)
}
- if (
- this.numberOfConfiguredChargingStations === 0 &&
- Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
- .enabled === true
- ) {
+ if (this.templateStatistics.size !== stationTemplateUrls.length) {
console.error(
chalk.red(
- "'stationTemplateUrls' has no charging station enabled and UI server is disabled, please check your configuration"
+ "'stationTemplateUrls' contains duplicate entries, please check your configuration"
)
)
- exit(exitCodes.noChargingStationTemplates)
+ exit(exitCodes.duplicateChargingStationTemplateUrls)
}
- this.initializedCounters = true
+ } else {
+ console.error(
+ chalk.red("'stationTemplateUrls' not defined or empty, please check your configuration")
+ )
+ exit(exitCodes.missingChargingStationsConfiguration)
+ }
+ if (
+ this.numberOfConfiguredChargingStations === 0 &&
+ Configuration.getConfigurationSection<UIServerConfiguration>(ConfigurationSection.uiServer)
+ .enabled !== true
+ ) {
+ console.error(
+ chalk.red(
+ "'stationTemplateUrls' has no charging station enabled and UI server is disabled, please check your configuration"
+ )
+ )
+ exit(exitCodes.noChargingStationTemplates)
}
}
- public async addChargingStation (index: number, stationTemplateFile: string): Promise<void> {
- await this.workerImplementation?.addElement({
+ public async addChargingStation (
+ index: number,
+ templateFile: string,
+ options?: ChargingStationOptions
+ ): Promise<ChargingStationInfo | undefined> {
+ if (!this.started && !this.starting) {
+ throw new BaseError(
+ 'Cannot add charging station while the charging stations simulator is not started'
+ )
+ }
+ const stationInfo = await this.workerImplementation?.addElement({
index,
templateFile: join(
dirname(fileURLToPath(import.meta.url)),
'assets',
'station-templates',
- stationTemplateFile
- )
+ templateFile
+ ),
+ options
})
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
- this.chargingStationsByTemplate.get(parse(stationTemplateFile).name)!.lastIndex = max(
- index,
- this.chargingStationsByTemplate.get(parse(stationTemplateFile).name)?.lastIndex ?? -Infinity
- )
+ const templateStatistics = this.templateStatistics.get(buildTemplateName(templateFile))!
+ ++templateStatistics.added
+ templateStatistics.indexes.add(index)
+ return stationInfo
}
private gracefulShutdown (): void {
this.stop()
.then(() => {
console.info(chalk.green('Graceful shutdown'))
- this.uiServer?.stop()
- // stop() asks for charging stations to stop by default
+ this.uiServer.stop()
+ this.uiServerStarted = false
this.waitChargingStationsStopped()
.then(() => {
exit(exitCodes.succeeded)
exit(exitCodes.gracefulShutdownError)
})
})
- .catch(error => {
+ .catch((error: unknown) => {
console.error(chalk.red('Error while shutdowning charging stations simulator: '), error)
exit(exitCodes.gracefulShutdownError)
})
repositories / e-mobility-charging-stations-simulator.git / blobdiff