+export abstract class OCPPResponseService {
+ private static instance: OCPPResponseService | null = null;
+ private readonly version: OCPPVersion;
+ private readonly ajv: Ajv;
+ public abstract jsonIncomingRequestResponseSchemas: Map<
+ IncomingRequestCommand,
+ JSONSchemaType<JsonObject>
+ >;
+
+ protected constructor(version: OCPPVersion) {
+ this.version = version;
+ this.ajv = new Ajv({
+ keywords: ['javaType'],
+ multipleOfPrecision: 2,
+ });
+ ajvFormats(this.ajv);
+ this.responseHandler = this.responseHandler.bind(this) as <
+ ReqType extends JsonType,
+ ResType extends JsonType,
+ >(
+ chargingStation: ChargingStation,
+ commandName: RequestCommand,
+ payload: ResType,
+ requestPayload: ReqType,
+ ) => Promise<void>;
+ this.validateResponsePayload = this.validateResponsePayload.bind(this) as <T extends JsonType>(
+ chargingStation: ChargingStation,
+ commandName: RequestCommand,
+ schema: JSONSchemaType<T>,
+ payload: T,
+ ) => boolean;
+ }
+
+ public static getInstance<T extends OCPPResponseService>(this: new () => T): T {
+ if (OCPPResponseService.instance === null) {
+ OCPPResponseService.instance = new this();
+ }
+ return OCPPResponseService.instance as T;