1 import { AuthorizationStatus
, StartTransactionResponse
, StopTransactionReason
, StopTransactionResponse
} from
'../types/Transaction';
2 import { PerformanceObserver
, performance
} from
'perf_hooks';
4 import ChargingStation from
'./ChargingStation';
5 import Constants from
'../utils/Constants';
6 import Utils from
'../utils/Utils';
7 import logger from
'../utils/Logger';
9 export default class AutomaticTransactionGenerator
{
10 private _chargingStation
: ChargingStation
;
11 private _timeToStop
: boolean;
12 private _performanceObserver
: PerformanceObserver
;
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();
26 get
timeToStop(): boolean {
27 return this._timeToStop
;
30 _logPrefix(connectorId
: number = null): string {
32 return Utils
.logPrefix(' ' + this._chargingStation
.stationInfo
.name
+ ' ATG on connector #' + connectorId
+ ':');
34 return Utils
.logPrefix(' ' + this._chargingStation
.stationInfo
.name
+ ' ATG:');
38 this._timeToStop
= false;
39 if (this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.stopAfterHours
&&
40 this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.stopAfterHours
> 0) {
43 }, this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.stopAfterHours
* 3600 * 1000);
45 for (const connector
in this._chargingStation
.connectors
) {
46 if (Utils
.convertToInt(connector
) > 0) {
47 this.startConnector(Utils
.convertToInt(connector
));
50 logger
.info(this._logPrefix() + ' ATG started and will stop in ' + Utils
.secondsToHHMMSS(this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.stopAfterHours
* 3600));
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
);
58 await this._chargingStation
.sendStopTransaction(this._chargingStation
.getConnector(Utils
.convertToInt(connector
)).transactionId
, reason
);
61 this._timeToStop
= true;
64 async startConnector(connectorId
: number): Promise
<void> {
66 const wait
= Utils
.getRandomInt(this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.maxDelayBetweenTwoTransactions
,
67 this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.minDelayBetweenTwoTransactions
) * 1000;
68 logger
.info(this._logPrefix(connectorId
) + ' wait for ' + Utils
.milliSecondsToHHMMSS(wait
));
69 await Utils
.sleep(wait
);
70 if (this._timeToStop
) {
71 logger
.debug(this._logPrefix(connectorId
) + ' Entered in transaction loop while a request to stop it was made');
74 const start
= Math.random();
76 if (start
< this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.probabilityOfStart
) {
79 let startResponse
: StartTransactionResponse
;
80 if (this._chargingStation
.getEnableStatistics()) {
81 const startTransaction
= performance
.timerify(this.startTransaction
);
82 this._performanceObserver
.observe({ entryTypes
: ['function'] });
83 startResponse
= await startTransaction(connectorId
, this);
85 startResponse
= await this.startTransaction(connectorId
, this);
87 if (startResponse
.idTagInfo
?.status !== AuthorizationStatus
.ACCEPTED
) {
88 logger
.info(this._logPrefix(connectorId
) + ' transaction rejected');
89 await Utils
.sleep(Constants
.CHARGING_STATION_ATG_WAIT_TIME
);
91 // Wait until end of transaction
92 const waitTrxEnd
= Utils
.getRandomInt(this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.maxDuration
,
93 this._chargingStation
.stationInfo
.AutomaticTransactionGenerator
.minDuration
) * 1000;
94 logger
.info(this._logPrefix(connectorId
) + ' transaction ' + this._chargingStation
.getConnector(connectorId
).transactionId
+ ' will stop in ' + Utils
.milliSecondsToHHMMSS(waitTrxEnd
));
95 await Utils
.sleep(waitTrxEnd
);
97 if (this._chargingStation
.getConnector(connectorId
).transactionStarted
) {
98 logger
.info(this._logPrefix(connectorId
) + ' stop transaction ' + this._chargingStation
.getConnector(connectorId
).transactionId
);
99 if (this._chargingStation
.getEnableStatistics()) {
100 const stopTransaction
= performance
.timerify(this.stopTransaction
);
101 this._performanceObserver
.observe({ entryTypes
: ['function'] });
102 await stopTransaction(connectorId
, this);
104 await this.stopTransaction(connectorId
, this);
110 logger
.info(this._logPrefix(connectorId
) + ' transaction skipped ' + skip
.toString());
112 } while (!this._timeToStop
);
113 logger
.info(this._logPrefix(connectorId
) + ' ATG STOPPED on the connector');
116 // eslint-disable-next-line consistent-this
117 async startTransaction(connectorId
: number, self: AutomaticTransactionGenerator
): Promise
<StartTransactionResponse
> {
118 if (self._chargingStation
.hasAuthorizedTags()) {
119 const tagId
= self._chargingStation
.getRandomTagId();
120 logger
.info(self._logPrefix(connectorId
) + ' start transaction for tagID ' + tagId
);
121 return await self._chargingStation
.sendStartTransaction(connectorId
, tagId
);
123 logger
.info(self._logPrefix(connectorId
) + ' start transaction without a tagID');
124 return await self._chargingStation
.sendStartTransaction(connectorId
);
127 // eslint-disable-next-line consistent-this
128 async stopTransaction(connectorId
: number, self: AutomaticTransactionGenerator
): Promise
<StopTransactionResponse
> {
129 return await self._chargingStation
.sendStopTransaction(self._chargingStation
.getConnector(connectorId
).transactionId
);