-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
+import { AsyncResource } from 'async_hooks';
+
+import type ChargingStation from './ChargingStation';
+import { ChargingStationUtils } from './ChargingStationUtils';
+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 {
AuthorizationStatus,
- AuthorizeRequest,
- AuthorizeResponse,
- StartTransactionRequest,
- StartTransactionResponse,
+ type AuthorizeRequest,
+ type AuthorizeResponse,
+ type StartTransactionRequest,
+ type StartTransactionResponse,
StopTransactionReason,
- StopTransactionResponse,
+ type StopTransactionResponse,
} from '../types/ocpp/Transaction';
import Constants from '../utils/Constants';
import logger from '../utils/Logger';
import Utils from '../utils/Utils';
-import type ChargingStation from './ChargingStation';
-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.started = false;
+ this.initializeConnectorsStatus();
}
public static getInstance(
automaticTransactionGeneratorConfiguration: AutomaticTransactionGeneratorConfiguration,
chargingStation: ChargingStation
- ): AutomaticTransactionGenerator {
- if (!AutomaticTransactionGenerator.instances.has(chargingStation.stationInfo.hashId)) {
+ ): AutomaticTransactionGenerator | undefined {
+ if (AutomaticTransactionGenerator.instances.has(chargingStation.stationInfo.hashId) === false) {
AutomaticTransactionGenerator.instances.set(
chargingStation.stationInfo.hashId,
new AutomaticTransactionGenerator(
}
public start(): void {
+ if (this.checkChargingStation() === false) {
+ return;
+ }
if (this.started === true) {
- logger.warn(`${this.logPrefix()} trying to start while already started`);
+ logger.warn(`${this.logPrefix()} is already started`);
return;
}
this.startConnectors();
public stop(): void {
if (this.started === false) {
- logger.warn(`${this.logPrefix()} trying to stop while not started`);
+ logger.warn(`${this.logPrefix()} is already stopped`);
return;
}
this.stopConnectors();
}
public startConnector(connectorId: number): void {
- if (this.chargingStation.connectors.has(connectorId) === false) {
- logger.warn(`${this.logPrefix(connectorId)} trying to start on non existing connector`);
+ if (this.checkChargingStation(connectorId) === false) {
return;
}
+ if (this.connectorsStatus.has(connectorId) === false) {
+ logger.error(`${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)} already started on connector`);
+ logger.warn(`${this.logPrefix(connectorId)} is already started on connector`);
}
}
public stopConnector(connectorId: number): void {
- this.connectorsStatus.set(connectorId, {
- ...this.connectorsStatus.get(connectorId),
- start: false,
- });
+ if (this.connectorsStatus.has(connectorId) === false) {
+ logger.error(`${this.logPrefix(connectorId)} stopping on non existing connector`);
+ throw new BaseError(`Connector ${connectorId} does not exist`);
+ }
+ if (this.connectorsStatus.get(connectorId)?.start === true) {
+ this.connectorsStatus.get(connectorId).start = false;
+ } else if (this.connectorsStatus.get(connectorId)?.start === false) {
+ logger.warn(`${this.logPrefix(connectorId)} is already stopped on connector`);
+ }
}
private startConnectors(): void {
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 ' +
- Utils.formatDurationMilliSeconds(
- this.connectorsStatus.get(connectorId).stopDate.getTime() -
- this.connectorsStatus.get(connectorId).startDate.getTime()
- )
+ `${this.logPrefix(
+ connectorId
+ )} started on connector and will run for ${Utils.formatDurationMilliSeconds(
+ this.connectorsStatus.get(connectorId).stopDate.getTime() -
+ this.connectorsStatus.get(connectorId).startDate.getTime()
+ )}`
);
- while (this.connectorsStatus.get(connectorId).start === true) {
+ while (this.connectorsStatus.get(connectorId)?.start === true) {
if (new Date() > this.connectorsStatus.get(connectorId).stopDate) {
this.stopConnector(connectorId);
break;
}
- if (!this.chargingStation.isInAcceptedState()) {
+ if (this.chargingStation.isInAcceptedState() === false) {
logger.error(
- this.logPrefix(connectorId) +
- ' entered in transaction loop while the charging station is not in accepted state'
+ `${this.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'
+ `${this.logPrefix(
+ connectorId
+ )} entered in transaction loop while the charging station is unavailable`
);
this.stopConnector(connectorId);
break;
}
- if (!this.chargingStation.isConnectorAvailable(connectorId)) {
+ if (this.chargingStation.isConnectorAvailable(connectorId) === false) {
logger.info(
`${this.logPrefix(
connectorId
this.configuration.minDelayBetweenTwoTransactions
) * 1000;
logger.info(
- this.logPrefix(connectorId) + ' waiting for ' + Utils.formatDurationMilliSeconds(wait)
+ `${this.logPrefix(connectorId)} waiting for ${Utils.formatDurationMilliSeconds(wait)}`
);
await Utils.sleep(wait);
const start = Utils.secureRandom();
Utils.getRandomInteger(this.configuration.maxDuration, this.configuration.minDuration) *
1000;
logger.info(
- this.logPrefix(connectorId) +
- ' transaction ' +
- this.chargingStation.getConnectorStatus(connectorId).transactionId.toString() +
- ' started and will stop in ' +
- Utils.formatDurationMilliSeconds(waitTrxEnd)
+ `${this.logPrefix(connectorId)} transaction ${this.chargingStation
+ .getConnectorStatus(connectorId)
+ .transactionId.toString()} started and will stop in ${Utils.formatDurationMilliSeconds(
+ waitTrxEnd
+ )}`
);
await Utils.sleep(waitTrxEnd);
// Stop transaction
logger.info(
- this.logPrefix(connectorId) +
- ' stop transaction ' +
- this.chargingStation.getConnectorStatus(connectorId).transactionId.toString()
+ `${this.logPrefix(connectorId)} stop transaction ${this.chargingStation
+ .getConnectorStatus(connectorId)
+ ?.transactionId?.toString()}`
);
await this.stopTransaction(connectorId);
}
this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions++;
this.connectorsStatus.get(connectorId).skippedTransactions++;
logger.info(
- this.logPrefix(connectorId) +
- ' skipped consecutively ' +
- this.connectorsStatus.get(connectorId).skippedConsecutiveTransactions.toString() +
- '/' +
- this.connectorsStatus.get(connectorId).skippedTransactions.toString() +
- ' transaction(s)'
+ `${this.logPrefix(connectorId)} skipped consecutively ${this.connectorsStatus
+ .get(connectorId)
+ ?.skippedConsecutiveTransactions?.toString()}/${this.connectorsStatus
+ .get(connectorId)
+ ?.skippedTransactions?.toString()} transaction(s)`
);
}
this.connectorsStatus.get(connectorId).lastRunDate = new Date();
}
this.connectorsStatus.get(connectorId).stoppedDate = new Date();
logger.info(
- this.logPrefix(connectorId) +
- ' stopped on connector and lasted for ' +
- Utils.formatDurationMilliSeconds(
- this.connectorsStatus.get(connectorId).stoppedDate.getTime() -
- this.connectorsStatus.get(connectorId).startDate.getTime()
- )
+ `${this.logPrefix(
+ connectorId
+ )} stopped on connector and lasted for ${Utils.formatDurationMilliSeconds(
+ this.connectorsStatus.get(connectorId).stoppedDate.getTime() -
+ this.connectorsStatus.get(connectorId).startDate.getTime()
+ )}`
);
logger.debug(
`${this.logPrefix(connectorId)} connector status: %j`,
);
}
- 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 = `${this.logPrefix(
connectorId
- )} start transaction for idTag '${idTag}'`;
+ )} start transaction with an idTag '${idTag}'`;
if (this.getRequireAuthorize()) {
this.chargingStation.getConnectorStatus(connectorId).authorizeIdTag = idTag;
// Authorize idTag
this.connectorsStatus.get(connectorId).rejectedStopTransactionRequests++;
}
} else {
- const transactionId = this.chargingStation.getConnectorStatus(connectorId).transactionId;
+ const transactionId = this.chargingStation.getConnectorStatus(connectorId)?.transactionId;
logger.warn(
- `${this.logPrefix(connectorId)} trying to stop a not started transaction${
- transactionId ? ' ' + transactionId.toString() : ''
+ `${this.logPrefix(connectorId)} stopping a not started transaction${
+ transactionId ? ` ${transactionId.toString()}` : ''
}`
);
}
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(
` ${this.chargingStation.stationInfo.chargingStationId} | ATG${
if (startResponse?.idTagInfo?.status === AuthorizationStatus.ACCEPTED) {
this.connectorsStatus.get(connectorId).acceptedStartTransactionRequests++;
} else {
- logger.warn(this.logPrefix(connectorId) + ' start transaction rejected');
+ logger.warn(`${this.logPrefix(connectorId)} start transaction rejected`);
this.connectorsStatus.get(connectorId).rejectedStartTransactionRequests++;
}
}
+
+ private checkChargingStation(connectorId?: number): boolean {
+ if (this.chargingStation.started === false && this.chargingStation.starting === false) {
+ logger.warn(`${this.logPrefix(connectorId)} charging station is stopped, cannot proceed`);
+ return false;
+ }
+ return true;
+ }
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff