-import ChargingStation from '../ChargingStation';
+import type ChargingStation from '../ChargingStation';
+import { HandleErrorParams } from '../../types/Error';
import { IncomingRequestCommand } from '../../types/ocpp/Requests';
+import { JsonType } from '../../types/JsonType';
import logger from '../../utils/Logger';
export default abstract class OCPPIncomingRequestService {
- protected chargingStation: ChargingStation;
+ private static instance: OCPPIncomingRequestService | null = null;
- constructor(chargingStation: ChargingStation) {
- this.chargingStation = chargingStation;
+ protected constructor() {
+ // This is intentional
}
- public handleIncomingRequestError(commandName: IncomingRequestCommand, error: Error): void {
- logger.error(this.chargingStation.logPrefix() + ' Incoming request command ' + commandName + ' error: %j', error);
- throw error;
+ public static getInstance<T extends OCPPIncomingRequestService>(this: new () => T): T {
+ if (!OCPPIncomingRequestService.instance) {
+ OCPPIncomingRequestService.instance = new this();
+ }
+ return OCPPIncomingRequestService.instance as T;
}
- public abstract handleRequest(messageId: string, commandName: IncomingRequestCommand, commandPayload: Record<string, unknown>): Promise<void>;
+ protected handleIncomingRequestError<T>(
+ chargingStation: ChargingStation,
+ commandName: IncomingRequestCommand,
+ error: Error,
+ params: HandleErrorParams<T> = { throwError: true }
+ ): T {
+ logger.error(
+ chargingStation.logPrefix() + ' Incoming request command %s error: %j',
+ commandName,
+ error
+ );
+ if (!params?.throwError && params?.errorResponse) {
+ return params?.errorResponse;
+ }
+ if (params?.throwError && !params?.errorResponse) {
+ throw error;
+ }
+ if (params?.throwError && params?.errorResponse) {
+ return params?.errorResponse;
+ }
+ }
+
+ public abstract incomingRequestHandler(
+ chargingStation: ChargingStation,
+ messageId: string,
+ commandName: IncomingRequestCommand,
+ commandPayload: JsonType
+ ): Promise<void>;
}