// Partial Copyright Jerome Benoit. 2021. 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.idTagIndex = 0;
this.connectorsStatus = new Map<number, Status>();
- this.stopConnectors();
+ this.initializeConnectorsStatus();
}
public static getInstance(
automaticTransactionGeneratorConfiguration: AutomaticTransactionGeneratorConfiguration,
chargingStation: ChargingStation
): AutomaticTransactionGenerator {
- if (!AutomaticTransactionGenerator.instances.has(chargingStation.stationInfo.hashId)) {
+ if (AutomaticTransactionGenerator.instances.has(chargingStation.stationInfo.hashId) === false) {
AutomaticTransactionGenerator.instances.set(
chargingStation.stationInfo.hashId,
new AutomaticTransactionGenerator(
}
public startConnector(connectorId: number): void {
- if (this.chargingStation.connectors.has(connectorId) === false) {
- logger.warn(`${this.logPrefix(connectorId)} starting on non existing connector`);
- return;
+ if (this.connectorsStatus.has(connectorId) === false) {
+ logger.error(`${this.logPrefix(connectorId)} starting on non existing connector`);
+ throw new BaseError(`Connector ${connectorId} does not exist`);
}
if (this.connectorsStatus.get(connectorId)?.start === false) {
- // Avoid hogging the event loop with a busy loop
- setImmediate(() => {
- this.internalStartConnector(connectorId).catch(() => {
- /* This is intentional */
- });
- });
+ this.runInAsyncScope(
+ this.internalStartConnector.bind(this) as (this: this, ...args: any[]) => unknown,
+ this,
+ connectorId
+ );
} else if (this.connectorsStatus.get(connectorId)?.start === true) {
logger.warn(`${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.setStartConnectorStatus(connectorId);
logger.info(
this.logPrefix(connectorId) +
' started on connector and will run for ' +
);
}
- 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
this.connectorsStatus.get(connectorId).start = true;
}
+ private initializeConnectorsStatus(): void {
+ for (const connectorId of this.chargingStation.connectors.keys()) {
+ if (connectorId > 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,
+ });
+ }
+ }
+ }
+
private async startTransaction(
connectorId: number
): Promise<StartTransactionResponse | undefined> {
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(
` ${this.chargingStation.stationInfo.chargingStationId} | ATG${
repositories / e-mobility-charging-stations-simulator.git / blobdiff