X-Git-Url: https://git.piment-noir.org/?a=blobdiff_plain;f=src%2Fcharging-station%2Focpp%2FOCPPResponseService.ts;h=0aedbb1eebb5b6a17a2abe94b2b85641c68c07e9;hb=856e8f67312da4acabeff1bd8452f02658a22fdb;hp=0a1cd0c610a117ad9c7b0af8211c6ef2efe037c5;hpb=c0560973d259dbce64a24d10bab46246596fa1d5;p=e-mobility-charging-stations-simulator.git

diff --git a/src/charging-station/ocpp/OCPPResponseService.ts b/src/charging-station/ocpp/OCPPResponseService.ts
index 0a1cd0c6..0aedbb1e 100644
--- a/src/charging-station/ocpp/OCPPResponseService.ts
+++ b/src/charging-station/ocpp/OCPPResponseService.ts
@@ -1,12 +1,103 @@
-import ChargingStation from '../ChargingStation';
-import { RequestCommand } from '../../types/ocpp/Requests';
+import Ajv, { type JSONSchemaType, type ValidateFunction } from 'ajv';
+import ajvFormats from 'ajv-formats';
 
-export default abstract class OCPPResponseService {
-  protected chargingStation: ChargingStation;
+import { OCPPServiceUtils } from './OCPPServiceUtils';
+import type { ChargingStation } from '../../charging-station';
+import { OCPPError } from '../../exception';
+import type { IncomingRequestCommand, JsonType, OCPPVersion, RequestCommand } from '../../types';
+import { logger } from '../../utils';
 
-  constructor(chargingStation: ChargingStation) {
-    this.chargingStation = chargingStation;
+const moduleName = 'OCPPResponseService';
+
+export abstract class OCPPResponseService {
+  private static instance: OCPPResponseService | null = null;
+
+  public jsonIncomingRequestResponseValidateFunctions: Map<
+    IncomingRequestCommand,
+    ValidateFunction<JsonType>
+  >;
+
+  private readonly version: OCPPVersion;
+  private readonly ajv: Ajv;
+  private jsonRequestValidateFunctions: Map<RequestCommand, ValidateFunction<JsonType>>;
+
+  public abstract jsonIncomingRequestResponseSchemas: Map<
+    IncomingRequestCommand,
+    JSONSchemaType<JsonType>
+  >;
+
+  protected constructor(version: OCPPVersion) {
+    this.version = version;
+    this.ajv = new Ajv({
+      keywords: ['javaType'],
+      multipleOfPrecision: 2,
+    });
+    ajvFormats(this.ajv);
+    this.jsonRequestValidateFunctions = new Map<RequestCommand, ValidateFunction<JsonType>>();
+    this.jsonIncomingRequestResponseValidateFunctions = new Map<
+      IncomingRequestCommand,
+      ValidateFunction<JsonType>
+    >();
+    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;
+  }
+
+  protected validateResponsePayload<T extends JsonType>(
+    chargingStation: ChargingStation,
+    commandName: RequestCommand,
+    schema: JSONSchemaType<T>,
+    payload: T,
+  ): boolean {
+    if (chargingStation.stationInfo?.ocppStrictCompliance === false) {
+      return true;
+    }
+    if (this.jsonRequestValidateFunctions.has(commandName) === false) {
+      this.jsonRequestValidateFunctions.set(commandName, this.ajv.compile<T>(schema).bind(this));
+    }
+    const validate = this.jsonRequestValidateFunctions.get(commandName)!;
+    if (validate(payload)) {
+      return true;
+    }
+    logger.error(
+      `${chargingStation.logPrefix()} ${moduleName}.validateResponsePayload: Command '${commandName}' response PDU is invalid: %j`,
+      validate.errors,
+    );
+    throw new OCPPError(
+      OCPPServiceUtils.ajvErrorsToErrorType(validate.errors),
+      'Response PDU is invalid',
+      commandName,
+      JSON.stringify(validate.errors, undefined, 2),
+    );
+  }
+
+  protected emptyResponseHandler() {
+    /* This is intentional */
   }
 
-  public abstract handleResponse(commandName: RequestCommand, payload: Record<string, unknown> | string, requestPayload: Record<string, unknown>): Promise<void>;
+  public abstract responseHandler<ReqType extends JsonType, ResType extends JsonType>(
+    chargingStation: ChargingStation,
+    commandName: RequestCommand,
+    payload: ResType,
+    requestPayload: ReqType,
+  ): Promise<void>;
 }