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1 | import { AuthorizeResponse, StartTransactionResponse, StopTransactionReason, StopTransactionResponse } from '../../types/ocpp/Transaction'; |
2 | import { IncomingRequestCommand, Request, RequestCommand } from '../../types/ocpp/Requests'; | |
3 | ||
efa43e52 | 4 | import { BootNotificationResponse } from '../../types/ocpp/Responses'; |
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5 | import { ChargePointErrorCode } from '../../types/ocpp/ChargePointErrorCode'; |
6 | import { ChargePointStatus } from '../../types/ocpp/ChargePointStatus'; | |
7 | import ChargingStation from '../ChargingStation'; | |
8 | import Constants from '../../utils/Constants'; | |
9 | import { ErrorType } from '../../types/ocpp/ErrorType'; | |
10 | import { MessageType } from '../../types/ocpp/MessageType'; | |
11 | import OCPPError from '../OcppError'; | |
12 | import OCPPResponseService from './OCPPResponseService'; | |
13 | import logger from '../../utils/Logger'; | |
14 | ||
15 | export default abstract class OCPPRequestService { | |
16 | public chargingStation: ChargingStation; | |
17 | protected ocppResponseService: OCPPResponseService; | |
18 | ||
19 | constructor(chargingStation: ChargingStation, ocppResponseService: OCPPResponseService) { | |
20 | this.chargingStation = chargingStation; | |
21 | this.ocppResponseService = ocppResponseService; | |
22 | } | |
23 | ||
24 | public async sendMessage(messageId: string, commandParams: any, messageType: MessageType = MessageType.CALL_RESULT_MESSAGE, commandName: RequestCommand | IncomingRequestCommand): Promise<any> { | |
25 | // eslint-disable-next-line @typescript-eslint/no-this-alias | |
26 | const self = this; | |
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27 | // Send a message through wsConnection |
28 | return new Promise((resolve: (value?: any | PromiseLike<any>) => void, reject: (reason?: any) => void) => { | |
29 | let messageToSend: string; | |
30 | // Type of message | |
31 | switch (messageType) { | |
32 | // Request | |
33 | case MessageType.CALL_MESSAGE: | |
34 | // Build request | |
35 | this.chargingStation.requests[messageId] = [responseCallback, rejectCallback, commandParams] as Request; | |
36 | messageToSend = JSON.stringify([messageType, messageId, commandName, commandParams]); | |
37 | break; | |
38 | // Response | |
39 | case MessageType.CALL_RESULT_MESSAGE: | |
40 | // Build response | |
41 | messageToSend = JSON.stringify([messageType, messageId, commandParams]); | |
42 | break; | |
43 | // Error Message | |
44 | case MessageType.CALL_ERROR_MESSAGE: | |
45 | // Build Error Message | |
46 | messageToSend = JSON.stringify([messageType, messageId, commandParams.code ? commandParams.code : ErrorType.GENERIC_ERROR, commandParams.message ? commandParams.message : '', commandParams.details ? commandParams.details : {}]); | |
47 | break; | |
48 | } | |
49 | // Check if wsConnection opened and charging station registered | |
50 | if (this.chargingStation.isWebSocketOpen() && (this.chargingStation.isRegistered() || commandName === RequestCommand.BOOT_NOTIFICATION)) { | |
51 | if (this.chargingStation.getEnableStatistics()) { | |
52 | this.chargingStation.statistics.addMessage(commandName, messageType); | |
53 | } | |
54 | // Yes: Send Message | |
55 | this.chargingStation.wsConnection.send(messageToSend); | |
56 | } else if (commandName !== RequestCommand.BOOT_NOTIFICATION) { | |
3ba2381e | 57 | // Buffer it |
77f00f84 | 58 | this.chargingStation.addToMessageQueue(messageToSend); |
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59 | // Reject it |
60 | return rejectCallback(new OCPPError(commandParams.code ? commandParams.code : ErrorType.GENERIC_ERROR, commandParams.message ? commandParams.message : `WebSocket closed for message id '${messageId}' with content '${messageToSend}', message buffered`, commandParams.details ? commandParams.details : {})); | |
61 | } | |
62 | // Response? | |
63 | if (messageType === MessageType.CALL_RESULT_MESSAGE) { | |
64 | // Yes: send Ok | |
65 | resolve(); | |
66 | } else if (messageType === MessageType.CALL_ERROR_MESSAGE) { | |
67 | // Send timeout | |
68 | setTimeout(() => rejectCallback(new OCPPError(commandParams.code ? commandParams.code : ErrorType.GENERIC_ERROR, commandParams.message ? commandParams.message : `Timeout for message id '${messageId}' with content '${messageToSend}'`, commandParams.details ? commandParams.details : {})), Constants.OCPP_ERROR_TIMEOUT); | |
69 | } | |
70 | ||
71 | // Function that will receive the request's response | |
72 | async function responseCallback(payload: Record<string, unknown> | string, requestPayload: Record<string, unknown>): Promise<void> { | |
52748e2c JB |
73 | if (self.chargingStation.getEnableStatistics()) { |
74 | self.chargingStation.statistics.addMessage(commandName, messageType); | |
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75 | } |
76 | // Send the response | |
77 | await self.ocppResponseService.handleResponse(commandName as RequestCommand, payload, requestPayload); | |
78 | resolve(payload); | |
79 | } | |
80 | ||
81 | // Function that will receive the request's rejection | |
82 | function rejectCallback(error: OCPPError): void { | |
52748e2c JB |
83 | if (self.chargingStation.getEnableStatistics()) { |
84 | self.chargingStation.statistics.addMessage(commandName, messageType); | |
c0560973 | 85 | } |
52748e2c | 86 | logger.debug(`${self.chargingStation.logPrefix()} Error: %j occurred when calling command %s with parameters: %j`, error, commandName, commandParams); |
c0560973 JB |
87 | // Build Exception |
88 | // eslint-disable-next-line no-empty-function | |
52748e2c | 89 | self.chargingStation.requests[messageId] = [() => { }, () => { }, {}]; |
c0560973 JB |
90 | // Send error |
91 | reject(error); | |
92 | } | |
93 | }); | |
94 | } | |
95 | ||
96 | public handleRequestError(commandName: RequestCommand, error: Error): void { | |
97 | logger.error(this.chargingStation.logPrefix() + ' Send ' + commandName + ' error: %j', error); | |
98 | throw error; | |
99 | } | |
100 | ||
101 | public abstract sendHeartbeat(): Promise<void>; | |
102 | public abstract sendBootNotification(chargePointModel: string, chargePointVendor: string, chargeBoxSerialNumber?: string, firmwareVersion?: string, chargePointSerialNumber?: string, iccid?: string, imsi?: string, meterSerialNumber?: string, meterType?: string): Promise<BootNotificationResponse>; | |
103 | public abstract sendStatusNotification(connectorId: number, status: ChargePointStatus, errorCode?: ChargePointErrorCode): Promise<void>; | |
104 | public abstract sendAuthorize(idTag?: string): Promise<AuthorizeResponse>; | |
105 | public abstract sendStartTransaction(connectorId: number, idTag?: string): Promise<StartTransactionResponse>; | |
106 | public abstract sendStopTransaction(transactionId: number, meterStop: number, idTag?: string, reason?: StopTransactionReason): Promise<StopTransactionResponse>; | |
107 | public abstract sendMeterValues(connectorId: number, transactionId: number, interval: number, self: OCPPRequestService): Promise<void>; | |
108 | public abstract sendError(messageId: string, error: OCPPError, commandName: RequestCommand | IncomingRequestCommand): Promise<unknown>; | |
c0560973 | 109 | } |