-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
+import { AsyncResource } from 'async_hooks';
+
+import BaseError from '../exception/BaseError';
import PerformanceStatistics from '../performance/PerformanceStatistics';
-import type {
- AutomaticTransactionGeneratorConfiguration,
- Status,
+import {
+ type AutomaticTransactionGeneratorConfiguration,
+ IdTagDistribution,
+ type Status,
} from '../types/AutomaticTransactionGenerator';
import { RequestCommand } from '../types/ocpp/Requests';
import {
import logger from '../utils/Logger';
import Utils from '../utils/Utils';
import type ChargingStation from './ChargingStation';
+import { ChargingStationUtils } from './ChargingStationUtils';
-export default class AutomaticTransactionGenerator {
+const moduleName = 'AutomaticTransactionGenerator';
+
+export default class AutomaticTransactionGenerator extends AsyncResource {
private static readonly instances: Map<string, AutomaticTransactionGenerator> = new Map<
string,
AutomaticTransactionGenerator
public readonly configuration: AutomaticTransactionGeneratorConfiguration;
public started: boolean;
private readonly chargingStation: ChargingStation;
+ private idTagIndex: number;
private constructor(
automaticTransactionGeneratorConfiguration: AutomaticTransactionGeneratorConfiguration,
chargingStation: ChargingStation
) {
+ super(moduleName);
this.started = false;
this.configuration = automaticTransactionGeneratorConfiguration;
this.chargingStation = chargingStation;
- this.connectorsStatus = new Map<number, Status>(this.buildInitialConnectorsStatus());
+ this.idTagIndex = 0;
+ this.connectorsStatus = new Map<number, Status>();
+ this.initializeConnectorsStatus();
}
public static getInstance(
}
public start(): void {
+ if (this.checkChargingStation() === false) {
+ return;
+ }
if (this.started === true) {
logger.warn(`${this.logPrefix()} is already started`);
return;
}
public startConnector(connectorId: number): void {
- if (this.chargingStation.connectors.has(connectorId) === false) {
- logger.warn(`${this.logPrefix(connectorId)} starting on non existing connector`);
+ if (this.checkChargingStation(connectorId) === false) {
return;
}
+ if (this.connectorsStatus.has(connectorId) === false) {
+ logger.error(`${this.logPrefix(connectorId)} starting on non existing connector`);
+ throw new BaseError(`Connector ${connectorId} does not exist`);
+ }
if (this.connectorsStatus.get(connectorId)?.start === false) {
- // Avoid hogging the event loop with a busy loop
- setImmediate(() => {
- this.internalStartConnector(connectorId).catch(() => {
- /* This is intentional */
- });
+ this.runInAsyncScope(
+ this.internalStartConnector.bind(this) as (
+ this: AutomaticTransactionGenerator,
+ ...args: any[]
+ ) => Promise<void>,
+ this,
+ connectorId
+ ).catch(() => {
+ /* This is intentional */
});
} else if (this.connectorsStatus.get(connectorId)?.start === true) {
logger.warn(`${this.logPrefix(connectorId)} is already started on connector`);
}
public stopConnector(connectorId: number): void {
- if (this.chargingStation.connectors.has(connectorId) === false) {
- logger.warn(`${this.logPrefix(connectorId)} stopping on non existing connector`);
- return;
+ if (this.connectorsStatus.has(connectorId) === false) {
+ logger.error(`${this.logPrefix(connectorId)} stopping on non existing connector`);
+ throw new BaseError(`Connector ${connectorId} does not exist`);
}
if (this.connectorsStatus.get(connectorId)?.start === true) {
- this.connectorsStatus.set(connectorId, {
- ...this.connectorsStatus.get(connectorId),
- start: false,
- });
+ this.connectorsStatus.get(connectorId).start = false;
} else if (this.connectorsStatus.get(connectorId)?.start === false) {
logger.warn(`${this.logPrefix(connectorId)} is already stopped on connector`);
}
this.connectorsStatus.size !== this.chargingStation.getNumberOfConnectors()
) {
this.connectorsStatus.clear();
+ this.initializeConnectorsStatus();
}
for (const connectorId of this.chargingStation.connectors.keys()) {
if (connectorId > 0) {
}
private async internalStartConnector(connectorId: number): Promise<void> {
- this.initializeConnectorStatus(connectorId);
- this.connectorsStatus.get(connectorId).start = true;
+ this.setStartConnectorStatus(connectorId);
logger.info(
this.logPrefix(connectorId) +
' started on connector and will run for ' +
this.stopConnector(connectorId);
break;
}
- if (!this.chargingStation.isInAcceptedState()) {
+ if (this.chargingStation.isInAcceptedState() === false) {
logger.error(
this.logPrefix(connectorId) +
' entered in transaction loop while the charging station is not in accepted state'
this.stopConnector(connectorId);
break;
}
- if (!this.chargingStation.isChargingStationAvailable()) {
+ if (this.chargingStation.isChargingStationAvailable() === false) {
logger.info(
this.logPrefix(connectorId) +
' entered in transaction loop while the charging station is unavailable'
this.stopConnector(connectorId);
break;
}
- if (!this.chargingStation.isConnectorAvailable(connectorId)) {
+ if (this.chargingStation.isConnectorAvailable(connectorId) === false) {
logger.info(
`${this.logPrefix(
connectorId
);
}
- private initializeConnectorStatus(connectorId: number): void {
- this.connectorsStatus.get(connectorId).authorizeRequests =
- this?.connectorsStatus.get(connectorId)?.authorizeRequests ?? 0;
- this.connectorsStatus.get(connectorId).acceptedAuthorizeRequests =
- this?.connectorsStatus.get(connectorId)?.acceptedAuthorizeRequests ?? 0;
- this.connectorsStatus.get(connectorId).rejectedAuthorizeRequests =
- this?.connectorsStatus.get(connectorId)?.rejectedAuthorizeRequests ?? 0;
- this.connectorsStatus.get(connectorId).startTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.startTransactionRequests ?? 0;
- this.connectorsStatus.get(connectorId).acceptedStartTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.acceptedStartTransactionRequests ?? 0;
- this.connectorsStatus.get(connectorId).rejectedStartTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.rejectedStartTransactionRequests ?? 0;
- this.connectorsStatus.get(connectorId).stopTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.stopTransactionRequests ?? 0;
- this.connectorsStatus.get(connectorId).acceptedStopTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.acceptedStopTransactionRequests ?? 0;
- this.connectorsStatus.get(connectorId).rejectedStopTransactionRequests =
- this?.connectorsStatus.get(connectorId)?.rejectedStopTransactionRequests ?? 0;
+ private setStartConnectorStatus(connectorId: number): void {
this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions = 0;
- this.connectorsStatus.get(connectorId).skippedTransactions =
- this?.connectorsStatus.get(connectorId)?.skippedTransactions ?? 0;
const previousRunDuration =
this?.connectorsStatus.get(connectorId)?.startDate &&
this?.connectorsStatus.get(connectorId)?.lastRunDate
1000 -
previousRunDuration
);
- this.connectorsStatus.get(connectorId).start =
- this?.connectorsStatus.get(connectorId)?.start ?? false;
+ this.connectorsStatus.get(connectorId).start = true;
}
- private buildInitialConnectorsStatus(): [number, Status][] {
- const connectorsStatus: [number, Status][] = [];
+ private initializeConnectorsStatus(): void {
for (const connectorId of this.chargingStation.connectors.keys()) {
if (connectorId > 0) {
- connectorsStatus.push([
- connectorId,
- {
- start: false,
- authorizeRequests: 0,
- acceptedAuthorizeRequests: 0,
- rejectedAuthorizeRequests: 0,
- startTransactionRequests: 0,
- acceptedStartTransactionRequests: 0,
- rejectedStartTransactionRequests: 0,
- stopTransactionRequests: 0,
- acceptedStopTransactionRequests: 0,
- rejectedStopTransactionRequests: 0,
- skippedConsecutiveTransactions: 0,
- skippedTransactions: 0,
- },
- ]);
+ this.connectorsStatus.set(connectorId, {
+ start: false,
+ authorizeRequests: 0,
+ acceptedAuthorizeRequests: 0,
+ rejectedAuthorizeRequests: 0,
+ startTransactionRequests: 0,
+ acceptedStartTransactionRequests: 0,
+ rejectedStartTransactionRequests: 0,
+ stopTransactionRequests: 0,
+ acceptedStopTransactionRequests: 0,
+ rejectedStopTransactionRequests: 0,
+ skippedConsecutiveTransactions: 0,
+ skippedTransactions: 0,
+ });
}
}
- return connectorsStatus;
}
private async startTransaction(
const beginId = PerformanceStatistics.beginMeasure(measureId);
let startResponse: StartTransactionResponse;
if (this.chargingStation.hasAuthorizedTags()) {
- const idTag = this.chargingStation.getRandomIdTag();
+ const idTag = this.getIdTag(connectorId);
const startTransactionLogMsg = `${this.logPrefix(
connectorId
)} start transaction with an idTag '${idTag}'`;
return this.configuration?.requireAuthorize ?? true;
}
+ private getRandomIdTag(authorizationFile: string): string {
+ const tags = this.chargingStation.authorizedTagsCache.getAuthorizedTags(authorizationFile);
+ this.idTagIndex = Math.floor(Utils.secureRandom() * tags.length);
+ return tags[this.idTagIndex];
+ }
+
+ private getRoundRobinIdTag(authorizationFile: string): string {
+ const tags = this.chargingStation.authorizedTagsCache.getAuthorizedTags(authorizationFile);
+ const idTag = tags[this.idTagIndex];
+ this.idTagIndex = this.idTagIndex === tags.length - 1 ? 0 : this.idTagIndex + 1;
+ return idTag;
+ }
+
+ private getConnectorAffinityIdTag(authorizationFile: string, connectorId: number): string {
+ const tags = this.chargingStation.authorizedTagsCache.getAuthorizedTags(authorizationFile);
+ this.idTagIndex = (this.chargingStation.index - 1 + (connectorId - 1)) % tags.length;
+ return tags[this.idTagIndex];
+ }
+
+ private getIdTag(connectorId: number): string {
+ const authorizationFile = ChargingStationUtils.getAuthorizationFile(
+ this.chargingStation.stationInfo
+ );
+ switch (this.configuration?.idTagDistribution) {
+ case IdTagDistribution.RANDOM:
+ return this.getRandomIdTag(authorizationFile);
+ case IdTagDistribution.ROUND_ROBIN:
+ return this.getRoundRobinIdTag(authorizationFile);
+ case IdTagDistribution.CONNECTOR_AFFINITY:
+ return this.getConnectorAffinityIdTag(authorizationFile, connectorId);
+ default:
+ return this.getRoundRobinIdTag(authorizationFile);
+ }
+ }
+
private logPrefix(connectorId?: number): string {
return Utils.logPrefix(
` ${this.chargingStation.stationInfo.chargingStationId} | ATG${
this.connectorsStatus.get(connectorId).rejectedStartTransactionRequests++;
}
}
+
+ private checkChargingStation(connectorId?: number): boolean {
+ if (this.chargingStation.started === false && this.chargingStation.starting === false) {
+ logger.warn(`${this.logPrefix(connectorId)} charging station is stopped, cannot proceed`);
+ return false;
+ }
+ return true;
+ }
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff