-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2024. All Rights Reserved.
-import fs from 'fs';
-import path from 'path';
-import { fileURLToPath } from 'url';
+import type { ValidateFunction } from 'ajv'
-import type { JSONSchemaType } from 'ajv';
-
-import OCPPError from '../../../exception/OCPPError';
-import type { JsonObject, JsonType } from '../../../types/JsonType';
-import type { OCPP16MeterValuesRequest } from '../../../types/ocpp/1.6/MeterValues';
+import type { ChargingStation } from '../../../charging-station/index.js'
+import { OCPPError } from '../../../exception/index.js'
import {
- DiagnosticsStatusNotificationRequest,
- OCPP16BootNotificationRequest,
- OCPP16HeartbeatRequest,
+ ErrorType,
+ type JsonObject,
+ type JsonType,
+ type OCPP16AuthorizeRequest,
+ type OCPP16BootNotificationRequest,
+ OCPP16ChargePointStatus,
+ type OCPP16DataTransferRequest,
+ type OCPP16DiagnosticsStatusNotificationRequest,
+ type OCPP16FirmwareStatusNotificationRequest,
+ type OCPP16HeartbeatRequest,
+ type OCPP16MeterValuesRequest,
OCPP16RequestCommand,
- OCPP16StatusNotificationRequest,
-} from '../../../types/ocpp/1.6/Requests';
-import type {
- OCPP16AuthorizeRequest,
- OCPP16StartTransactionRequest,
- OCPP16StopTransactionRequest,
-} from '../../../types/ocpp/1.6/Transaction';
-import { ErrorType } from '../../../types/ocpp/ErrorType';
-import type { RequestParams } from '../../../types/ocpp/Requests';
-import Constants from '../../../utils/Constants';
-import logger from '../../../utils/Logger';
-import Utils from '../../../utils/Utils';
-import type ChargingStation from '../../ChargingStation';
-import { ChargingStationUtils } from '../../ChargingStationUtils';
-import OCPPRequestService from '../OCPPRequestService';
-import type OCPPResponseService from '../OCPPResponseService';
-import { OCPP16ServiceUtils } from './OCPP16ServiceUtils';
+ type OCPP16StartTransactionRequest,
+ type OCPP16StatusNotificationRequest,
+ type OCPP16StopTransactionRequest,
+ OCPPVersion,
+ type RequestParams
+} from '../../../types/index.js'
+import { Constants, generateUUID } from '../../../utils/index.js'
+import { OCPPRequestService } from '../OCPPRequestService.js'
+import type { OCPPResponseService } from '../OCPPResponseService.js'
+import { OCPP16Constants } from './OCPP16Constants.js'
+import { OCPP16ServiceUtils } from './OCPP16ServiceUtils.js'
-const moduleName = 'OCPP16RequestService';
+const moduleName = 'OCPP16RequestService'
-export default class OCPP16RequestService extends OCPPRequestService {
- private jsonSchemas: Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>;
+export class OCPP16RequestService extends OCPPRequestService {
+ protected payloadValidateFunctions: Map<OCPP16RequestCommand, ValidateFunction<JsonType>>
- public constructor(ocppResponseService: OCPPResponseService) {
- if (new.target?.name === moduleName) {
- throw new TypeError(`Cannot construct ${new.target?.name} instances directly`);
- }
- super(ocppResponseService);
- this.jsonSchemas = new Map<OCPP16RequestCommand, JSONSchemaType<JsonObject>>([
+ public constructor (ocppResponseService: OCPPResponseService) {
+ // if (new.target.name === moduleName) {
+ // throw new TypeError(`Cannot construct ${new.target.name} instances directly`)
+ // }
+ super(OCPPVersion.VERSION_16, ocppResponseService)
+ this.payloadValidateFunctions = new Map<OCPP16RequestCommand, ValidateFunction<JsonType>>([
[
OCPP16RequestCommand.AUTHORIZE,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/Authorize.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16AuthorizeRequest>(
+ 'assets/json-schemas/ocpp/1.6/Authorize.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16AuthorizeRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.BOOT_NOTIFICATION,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/BootNotification.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16BootNotificationRequest>(
+ 'assets/json-schemas/ocpp/1.6/BootNotification.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16BootNotificationRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotification.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DiagnosticsStatusNotificationRequest>(
+ 'assets/json-schemas/ocpp/1.6/DiagnosticsStatusNotification.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<DiagnosticsStatusNotificationRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.HEARTBEAT,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/Heartbeat.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16HeartbeatRequest>(
+ 'assets/json-schemas/ocpp/1.6/Heartbeat.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16HeartbeatRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.METER_VALUES,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/MeterValues.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16MeterValuesRequest>(
+ 'assets/json-schemas/ocpp/1.6/MeterValues.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16MeterValuesRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.STATUS_NOTIFICATION,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/StatusNotification.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StatusNotificationRequest>(
+ 'assets/json-schemas/ocpp/1.6/StatusNotification.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16StatusNotificationRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.START_TRANSACTION,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/StartTransaction.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StartTransactionRequest>(
+ 'assets/json-schemas/ocpp/1.6/StartTransaction.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16StartTransactionRequest>,
+ .bind(this)
],
[
OCPP16RequestCommand.STOP_TRANSACTION,
- JSON.parse(
- fs.readFileSync(
- path.resolve(
- path.dirname(fileURLToPath(import.meta.url)),
- '../../../assets/json-schemas/ocpp/1.6/StopTransaction.json'
- ),
- 'utf8'
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16StopTransactionRequest>(
+ 'assets/json-schemas/ocpp/1.6/StopTransaction.json',
+ moduleName,
+ 'constructor'
+ )
+ )
+ .bind(this)
+ ],
+ [
+ OCPP16RequestCommand.DATA_TRANSFER,
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16DataTransferRequest>(
+ 'assets/json-schemas/ocpp/1.6/DataTransfer.json',
+ moduleName,
+ 'constructor'
+ )
)
- ) as JSONSchemaType<OCPP16StopTransactionRequest>,
+ .bind(this)
],
- ]);
- this.buildRequestPayload.bind(this);
- this.validatePayload.bind(this);
+ [
+ OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION,
+ this.ajv
+ .compile(
+ OCPP16ServiceUtils.parseJsonSchemaFile<OCPP16FirmwareStatusNotificationRequest>(
+ 'assets/json-schemas/ocpp/1.6/FirmwareStatusNotification.json',
+ moduleName,
+ 'constructor'
+ )
+ )
+ .bind(this)
+ ]
+ ])
+ this.buildRequestPayload = this.buildRequestPayload.bind(this)
}
public async requestHandler<RequestType extends JsonType, ResponseType extends JsonType>(
chargingStation: ChargingStation,
commandName: OCPP16RequestCommand,
- commandParams?: JsonType,
+ commandParams?: RequestType,
params?: RequestParams
): Promise<ResponseType> {
- if (ChargingStationUtils.isRequestCommandSupported(commandName, chargingStation)) {
- const requestPayload = this.buildRequestPayload<RequestType>(
- chargingStation,
- commandName,
- commandParams
- );
- this.validatePayload(chargingStation, commandName, requestPayload);
+ // FIXME?: add sanity checks on charging station availability, connector availability, connector status, etc.
+ if (OCPP16ServiceUtils.isRequestCommandSupported(chargingStation, commandName)) {
+ // Post request actions hook
+ switch (commandName) {
+ case OCPP16RequestCommand.START_TRANSACTION:
+ await OCPP16ServiceUtils.sendAndSetConnectorStatus(
+ chargingStation,
+ (commandParams as OCPP16StartTransactionRequest).connectorId,
+ OCPP16ChargePointStatus.Preparing
+ )
+ break
+ }
return (await this.sendMessage(
chargingStation,
- Utils.generateUUID(),
- requestPayload,
+ generateUUID(),
+ this.buildRequestPayload<RequestType>(chargingStation, commandName, commandParams),
commandName,
params
- )) as unknown as ResponseType;
+ )) as ResponseType
}
// OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
throw new OCPPError(
`Unsupported OCPP command '${commandName}'`,
commandName,
commandParams
- );
+ )
}
private buildRequestPayload<Request extends JsonType>(
commandName: OCPP16RequestCommand,
commandParams?: JsonType
): Request {
- let connectorId: number;
- let energyActiveImportRegister: number;
- commandParams = commandParams as JsonObject;
+ let connectorId: number | undefined
+ let energyActiveImportRegister: number
+ commandParams = commandParams as JsonObject
switch (commandName) {
- case OCPP16RequestCommand.AUTHORIZE:
- return {
- ...(!Utils.isUndefined(commandParams?.idTag)
- ? { idTag: commandParams.idTag }
- : { idTag: Constants.DEFAULT_IDTAG }),
- } as unknown as Request;
case OCPP16RequestCommand.BOOT_NOTIFICATION:
- return {
- chargePointModel: commandParams?.chargePointModel,
- chargePointVendor: commandParams?.chargePointVendor,
- ...(!Utils.isUndefined(commandParams?.chargeBoxSerialNumber) && {
- chargeBoxSerialNumber: commandParams.chargeBoxSerialNumber,
- }),
- ...(!Utils.isUndefined(commandParams?.chargePointSerialNumber) && {
- chargePointSerialNumber: commandParams.chargePointSerialNumber,
- }),
- ...(!Utils.isUndefined(commandParams?.firmwareVersion) && {
- firmwareVersion: commandParams.firmwareVersion,
- }),
- ...(!Utils.isUndefined(commandParams?.iccid) && { iccid: commandParams.iccid }),
- ...(!Utils.isUndefined(commandParams?.imsi) && { imsi: commandParams.imsi }),
- ...(!Utils.isUndefined(commandParams?.meterSerialNumber) && {
- meterSerialNumber: commandParams.meterSerialNumber,
- }),
- ...(!Utils.isUndefined(commandParams?.meterType) && {
- meterType: commandParams.meterType,
- }),
- } as unknown as Request;
case OCPP16RequestCommand.DIAGNOSTICS_STATUS_NOTIFICATION:
- return {
- status: commandParams?.diagnosticsStatus,
- } as unknown as Request;
- case OCPP16RequestCommand.HEARTBEAT:
- return {} as unknown as Request;
+ case OCPP16RequestCommand.FIRMWARE_STATUS_NOTIFICATION:
case OCPP16RequestCommand.METER_VALUES:
- return {
- connectorId: commandParams?.connectorId,
- transactionId: commandParams?.transactionId,
- meterValue: commandParams?.meterValue,
- } as unknown as Request;
case OCPP16RequestCommand.STATUS_NOTIFICATION:
+ case OCPP16RequestCommand.DATA_TRANSFER:
+ return commandParams as unknown as Request
+ case OCPP16RequestCommand.AUTHORIZE:
return {
- connectorId: commandParams?.connectorId,
- status: commandParams?.status,
- errorCode: commandParams?.errorCode,
- } as unknown as Request;
+ idTag: Constants.DEFAULT_IDTAG,
+ ...commandParams
+ } as unknown as Request
+ case OCPP16RequestCommand.HEARTBEAT:
+ return OCPP16Constants.OCPP_REQUEST_EMPTY as unknown as Request
case OCPP16RequestCommand.START_TRANSACTION:
return {
- connectorId: commandParams?.connectorId,
- ...(!Utils.isUndefined(commandParams?.idTag)
- ? { idTag: commandParams?.idTag }
- : { idTag: Constants.DEFAULT_IDTAG }),
+ idTag: Constants.DEFAULT_IDTAG,
meterStart: chargingStation.getEnergyActiveImportRegisterByConnectorId(
- commandParams?.connectorId as number
+ commandParams.connectorId as number,
+ true
),
- timestamp: new Date().toISOString(),
- } as unknown as Request;
+ timestamp: new Date(),
+ ...(OCPP16ServiceUtils.hasReservation(
+ chargingStation,
+ commandParams.connectorId as number,
+ commandParams.idTag as string
+ ) && {
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ reservationId: chargingStation.getReservationBy(
+ 'connectorId',
+ chargingStation.getConnectorStatus(0)?.status === OCPP16ChargePointStatus.Reserved
+ ? 0
+ : (commandParams.connectorId as number)
+ )!.reservationId
+ }),
+ ...commandParams
+ } as unknown as Request
case OCPP16RequestCommand.STOP_TRANSACTION:
- connectorId = chargingStation.getConnectorIdByTransactionId(
- commandParams?.transactionId as number
- );
- commandParams?.meterStop &&
- (energyActiveImportRegister =
- chargingStation.getEnergyActiveImportRegisterByTransactionId(
- commandParams?.transactionId as number,
- true
- ));
+ chargingStation.stationInfo?.transactionDataMeterValues === true &&
+ (connectorId = chargingStation.getConnectorIdByTransactionId(
+ commandParams.transactionId as number
+ ))
+ energyActiveImportRegister = chargingStation.getEnergyActiveImportRegisterByTransactionId(
+ commandParams.transactionId as number,
+ true
+ )
return {
- transactionId: commandParams?.transactionId,
- idTag:
- commandParams?.idTag ??
- chargingStation.getTransactionIdTag(commandParams?.transactionId as number),
- meterStop: commandParams?.meterStop ?? energyActiveImportRegister,
- timestamp: new Date().toISOString(),
- reason: commandParams?.reason,
- ...(chargingStation.getTransactionDataMeterValues() && {
+ idTag: chargingStation.getTransactionIdTag(commandParams.transactionId as number),
+ meterStop: energyActiveImportRegister,
+ timestamp: new Date(),
+ ...(chargingStation.stationInfo?.transactionDataMeterValues === true && {
transactionData: OCPP16ServiceUtils.buildTransactionDataMeterValues(
- chargingStation.getConnectorStatus(connectorId).transactionBeginMeterValue,
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ chargingStation.getConnectorStatus(connectorId!)!.transactionBeginMeterValue!,
OCPP16ServiceUtils.buildTransactionEndMeterValue(
chargingStation,
- connectorId,
- (commandParams?.meterStop as number) ?? energyActiveImportRegister
+ // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
+ connectorId!,
+ energyActiveImportRegister
)
- ),
+ )
}),
- } as unknown as Request;
+ ...commandParams
+ } as unknown as Request
default:
// OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError().
throw new OCPPError(
`Unsupported OCPP command '${commandName}'`,
commandName,
commandParams
- );
- }
- }
-
- private validatePayload<Request extends JsonType>(
- chargingStation: ChargingStation,
- commandName: OCPP16RequestCommand,
- requestPayload: Request
- ): boolean {
- if (this.jsonSchemas.has(commandName)) {
- return this.validateRequestPayload(
- chargingStation,
- commandName,
- this.jsonSchemas.get(commandName),
- requestPayload
- );
+ )
}
- logger.warn(
- `${chargingStation.logPrefix()} ${moduleName}.validatePayload: No JSON schema found for command ${commandName} PDU validation`
- );
- return false;
}
}