| 1 | import { AuthorizationStatus, StartTransactionResponse, StopTransactionReason, StopTransactionResponse } from '../types/ocpp/1.6/Transaction'; |
| 2 | import { PerformanceObserver, performance } from 'perf_hooks'; |
| 3 | |
| 4 | import ChargingStation from './ChargingStation'; |
| 5 | import Constants from '../utils/Constants'; |
| 6 | import Utils from '../utils/Utils'; |
| 7 | import logger from '../utils/Logger'; |
| 8 | |
| 9 | export default class AutomaticTransactionGenerator { |
| 10 | private _chargingStation: ChargingStation; |
| 11 | private _timeToStop: boolean; |
| 12 | private _performanceObserver: PerformanceObserver; |
| 13 | |
| 14 | constructor(chargingStation: ChargingStation) { |
| 15 | this._chargingStation = chargingStation; |
| 16 | this._timeToStop = true; |
| 17 | if (this._chargingStation.getEnableStatistics()) { |
| 18 | this._performanceObserver = new PerformanceObserver((list) => { |
| 19 | const entry = list.getEntries()[0]; |
| 20 | this._chargingStation.statistics.logPerformance(entry, Constants.ENTITY_AUTOMATIC_TRANSACTION_GENERATOR); |
| 21 | this._performanceObserver.disconnect(); |
| 22 | }); |
| 23 | } |
| 24 | } |
| 25 | |
| 26 | get timeToStop(): boolean { |
| 27 | return this._timeToStop; |
| 28 | } |
| 29 | |
| 30 | _logPrefix(connectorId: number = null): string { |
| 31 | if (connectorId) { |
| 32 | return Utils.logPrefix(' ' + this._chargingStation.stationInfo.name + ' ATG on connector #' + connectorId.toString() + ':'); |
| 33 | } |
| 34 | return Utils.logPrefix(' ' + this._chargingStation.stationInfo.name + ' ATG:'); |
| 35 | } |
| 36 | |
| 37 | start(): void { |
| 38 | this._timeToStop = false; |
| 39 | if (this._chargingStation.stationInfo.AutomaticTransactionGenerator.stopAfterHours && |
| 40 | this._chargingStation.stationInfo.AutomaticTransactionGenerator.stopAfterHours > 0) { |
| 41 | setTimeout(() => { |
| 42 | void this.stop(); |
| 43 | }, this._chargingStation.stationInfo.AutomaticTransactionGenerator.stopAfterHours * 3600 * 1000); |
| 44 | } |
| 45 | for (const connector in this._chargingStation.connectors) { |
| 46 | if (Utils.convertToInt(connector) > 0) { |
| 47 | void this.startConnector(Utils.convertToInt(connector)); |
| 48 | } |
| 49 | } |
| 50 | logger.info(this._logPrefix() + ' ATG started and will stop in ' + Utils.secondsToHHMMSS(this._chargingStation.stationInfo.AutomaticTransactionGenerator.stopAfterHours * 3600)); |
| 51 | } |
| 52 | |
| 53 | async stop(reason: StopTransactionReason = StopTransactionReason.NONE): Promise<void> { |
| 54 | logger.info(this._logPrefix() + ' ATG OVER => STOPPING ALL TRANSACTIONS'); |
| 55 | for (const connector in this._chargingStation.connectors) { |
| 56 | if (this._chargingStation.getConnector(Utils.convertToInt(connector)).transactionStarted) { |
| 57 | logger.info(this._logPrefix(Utils.convertToInt(connector)) + ' ATG OVER. Stop transaction ' + this._chargingStation.getConnector(Utils.convertToInt(connector)).transactionId.toString()); |
| 58 | await this._chargingStation.sendStopTransaction(this._chargingStation.getConnector(Utils.convertToInt(connector)).transactionId, reason); |
| 59 | } |
| 60 | } |
| 61 | this._timeToStop = true; |
| 62 | } |
| 63 | |
| 64 | async startConnector(connectorId: number): Promise<void> { |
| 65 | do { |
| 66 | if (this._timeToStop) { |
| 67 | logger.error(this._logPrefix(connectorId) + ' Entered in transaction loop while a request to stop it was made'); |
| 68 | break; |
| 69 | } |
| 70 | if (!this._chargingStation._isRegistered()) { |
| 71 | logger.error(this._logPrefix(connectorId) + ' Entered in transaction loop while the charging station is not registered'); |
| 72 | break; |
| 73 | } |
| 74 | if (!this._chargingStation._isChargingStationAvailable()) { |
| 75 | logger.info(this._logPrefix(connectorId) + ' Entered in transaction loop while the charging station is unavailable'); |
| 76 | await this.stop(); |
| 77 | break; |
| 78 | } |
| 79 | if (!this._chargingStation._isConnectorAvailable(connectorId)) { |
| 80 | logger.info(`${this._logPrefix(connectorId)} Entered in transaction loop while the connector ${connectorId} is unavailable, stop it`); |
| 81 | break; |
| 82 | } |
| 83 | const wait = Utils.getRandomInt(this._chargingStation.stationInfo.AutomaticTransactionGenerator.maxDelayBetweenTwoTransactions, |
| 84 | this._chargingStation.stationInfo.AutomaticTransactionGenerator.minDelayBetweenTwoTransactions) * 1000; |
| 85 | logger.info(this._logPrefix(connectorId) + ' wait for ' + Utils.milliSecondsToHHMMSS(wait)); |
| 86 | await Utils.sleep(wait); |
| 87 | const start = Math.random(); |
| 88 | let skip = 0; |
| 89 | if (start < this._chargingStation.stationInfo.AutomaticTransactionGenerator.probabilityOfStart) { |
| 90 | skip = 0; |
| 91 | // Start transaction |
| 92 | let startResponse: StartTransactionResponse; |
| 93 | if (this._chargingStation.getEnableStatistics()) { |
| 94 | const startTransaction = performance.timerify(this.startTransaction); |
| 95 | this._performanceObserver.observe({ entryTypes: ['function'] }); |
| 96 | startResponse = await startTransaction(connectorId, this); |
| 97 | } else { |
| 98 | startResponse = await this.startTransaction(connectorId, this); |
| 99 | } |
| 100 | if (startResponse.idTagInfo.status !== AuthorizationStatus.ACCEPTED) { |
| 101 | logger.info(this._logPrefix(connectorId) + ' transaction rejected'); |
| 102 | await Utils.sleep(Constants.CHARGING_STATION_ATG_WAIT_TIME); |
| 103 | } else { |
| 104 | // Wait until end of transaction |
| 105 | const waitTrxEnd = Utils.getRandomInt(this._chargingStation.stationInfo.AutomaticTransactionGenerator.maxDuration, |
| 106 | this._chargingStation.stationInfo.AutomaticTransactionGenerator.minDuration) * 1000; |
| 107 | logger.info(this._logPrefix(connectorId) + ' transaction ' + this._chargingStation.getConnector(connectorId).transactionId.toString() + ' will stop in ' + Utils.milliSecondsToHHMMSS(waitTrxEnd)); |
| 108 | await Utils.sleep(waitTrxEnd); |
| 109 | // Stop transaction |
| 110 | if (this._chargingStation.getConnector(connectorId)?.transactionStarted) { |
| 111 | logger.info(this._logPrefix(connectorId) + ' stop transaction ' + this._chargingStation.getConnector(connectorId).transactionId.toString()); |
| 112 | if (this._chargingStation.getEnableStatistics()) { |
| 113 | const stopTransaction = performance.timerify(this.stopTransaction); |
| 114 | this._performanceObserver.observe({ entryTypes: ['function'] }); |
| 115 | await stopTransaction(connectorId, this); |
| 116 | } else { |
| 117 | await this.stopTransaction(connectorId, this); |
| 118 | } |
| 119 | } |
| 120 | } |
| 121 | } else { |
| 122 | skip++; |
| 123 | logger.info(this._logPrefix(connectorId) + ' transaction skipped ' + skip.toString()); |
| 124 | } |
| 125 | } while (!this._timeToStop); |
| 126 | logger.info(this._logPrefix(connectorId) + ' ATG STOPPED on the connector'); |
| 127 | } |
| 128 | |
| 129 | // eslint-disable-next-line consistent-this |
| 130 | private async startTransaction(connectorId: number, self: AutomaticTransactionGenerator): Promise<StartTransactionResponse> { |
| 131 | if (self._chargingStation.hasAuthorizedTags()) { |
| 132 | const tagId = self._chargingStation.getRandomTagId(); |
| 133 | logger.info(self._logPrefix(connectorId) + ' start transaction for tagID ' + tagId); |
| 134 | return await self._chargingStation.sendStartTransaction(connectorId, tagId); |
| 135 | } |
| 136 | logger.info(self._logPrefix(connectorId) + ' start transaction without a tagID'); |
| 137 | return await self._chargingStation.sendStartTransaction(connectorId); |
| 138 | } |
| 139 | |
| 140 | // eslint-disable-next-line consistent-this |
| 141 | private async stopTransaction(connectorId: number, self: AutomaticTransactionGenerator): Promise<StopTransactionResponse> { |
| 142 | return await self._chargingStation.sendStopTransaction(self._chargingStation.getConnector(connectorId).transactionId); |
| 143 | } |
| 144 | } |