+ 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);
+ }
+ }
+