+import { OCPPConstants } from './OCPPConstants';
+import { OCPPServiceUtils } from './OCPPServiceUtils';
+import { type ChargingStation, getIdTagsFile } from '../../charging-station';
+import { OCPPError } from '../../exception';
+import type {
+ ClearCacheResponse,
+ HandleErrorParams,
+ IncomingRequestCommand,
+ JsonObject,
+ JsonType,
+ OCPPVersion,
+} from '../../types';
+import { logger, setDefaultErrorParams } from '../../utils';
+
+const moduleName = 'OCPPIncomingRequestService';
+
+export abstract class OCPPIncomingRequestService extends AsyncResource {
+ private static instance: OCPPIncomingRequestService | null = null;
+ private readonly version: OCPPVersion;
+ private readonly ajv: Ajv;
+ protected abstract jsonSchemas: Map<IncomingRequestCommand, JSONSchemaType<JsonObject>>;
+
+ protected constructor(version: OCPPVersion) {
+ super(moduleName);
+ this.version = version;
+ this.ajv = new Ajv({
+ keywords: ['javaType'],
+ multipleOfPrecision: 2,
+ });
+ ajvFormats(this.ajv);
+ this.incomingRequestHandler = this.incomingRequestHandler.bind(this) as <
+ ReqType extends JsonType,
+ // eslint-disable-next-line @typescript-eslint/no-unused-vars
+ ResType extends JsonType,
+ >(
+ chargingStation: ChargingStation,
+ messageId: string,
+ commandName: IncomingRequestCommand,
+ commandPayload: ReqType,
+ ) => Promise<void>;
+ this.validateIncomingRequestPayload = this.validateIncomingRequestPayload.bind(this) as <
+ T extends JsonType,
+ >(
+ chargingStation: ChargingStation,
+ commandName: IncomingRequestCommand,
+ schema: JSONSchemaType<T>,
+ payload: T,
+ ) => boolean;
+ }
+
+ public static getInstance<T extends OCPPIncomingRequestService>(this: new () => T): T {
+ if (OCPPIncomingRequestService.instance === null) {
+ OCPPIncomingRequestService.instance = new this();
+ }
+ return OCPPIncomingRequestService.instance as T;