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edd13439 | 1 | // Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved. |
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2 | |
3 | import type { JSONSchemaType } from 'ajv'; | |
4 | ||
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5 | import { OCPP20Constants } from './OCPP20Constants'; |
6 | import { OCPP20ServiceUtils } from './OCPP20ServiceUtils'; | |
2896e06d | 7 | import type { ChargingStation } from '../../../charging-station'; |
268a74bb | 8 | import { OCPPError } from '../../../exception'; |
d270cc87 | 9 | import { |
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10 | ErrorType, |
11 | type JsonObject, | |
12 | type JsonType, | |
96a52d08 | 13 | type OCPP20BootNotificationRequest, |
81533a20 | 14 | type OCPP20HeartbeatRequest, |
d270cc87 | 15 | OCPP20RequestCommand, |
6e939d9e | 16 | type OCPP20StatusNotificationRequest, |
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17 | OCPPVersion, |
18 | type RequestParams, | |
19 | } from '../../../types'; | |
9bf0ef23 | 20 | import { generateUUID } from '../../../utils'; |
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21 | import { OCPPRequestService } from '../OCPPRequestService'; |
22 | import type { OCPPResponseService } from '../OCPPResponseService'; | |
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23 | |
24 | const moduleName = 'OCPP20RequestService'; | |
25 | ||
268a74bb | 26 | export class OCPP20RequestService extends OCPPRequestService { |
291b5ec8 | 27 | protected jsonSchemas: Map<OCPP20RequestCommand, JSONSchemaType<JsonType>>; |
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28 | |
29 | public constructor(ocppResponseService: OCPPResponseService) { | |
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30 | // if (new.target?.name === moduleName) { |
31 | // throw new TypeError(`Cannot construct ${new.target?.name} instances directly`); | |
32 | // } | |
d270cc87 | 33 | super(OCPPVersion.VERSION_20, ocppResponseService); |
291b5ec8 | 34 | this.jsonSchemas = new Map<OCPP20RequestCommand, JSONSchemaType<JsonType>>([ |
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35 | [ |
36 | OCPP20RequestCommand.BOOT_NOTIFICATION, | |
130783a7 | 37 | OCPP20ServiceUtils.parseJsonSchemaFile<OCPP20BootNotificationRequest>( |
51022aa0 | 38 | 'assets/json-schemas/ocpp/2.0/BootNotificationRequest.json', |
1b271a54 | 39 | moduleName, |
5edd8ba0 | 40 | 'constructor', |
e9a4164c | 41 | ), |
d270cc87 | 42 | ], |
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43 | [ |
44 | OCPP20RequestCommand.HEARTBEAT, | |
130783a7 | 45 | OCPP20ServiceUtils.parseJsonSchemaFile<OCPP20HeartbeatRequest>( |
51022aa0 | 46 | 'assets/json-schemas/ocpp/2.0/HeartbeatRequest.json', |
1b271a54 | 47 | moduleName, |
5edd8ba0 | 48 | 'constructor', |
e9a4164c | 49 | ), |
81533a20 | 50 | ], |
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51 | [ |
52 | OCPP20RequestCommand.STATUS_NOTIFICATION, | |
130783a7 | 53 | OCPP20ServiceUtils.parseJsonSchemaFile<OCPP20StatusNotificationRequest>( |
51022aa0 | 54 | 'assets/json-schemas/ocpp/2.0/StatusNotificationRequest.json', |
1b271a54 | 55 | moduleName, |
5edd8ba0 | 56 | 'constructor', |
e9a4164c | 57 | ), |
6e939d9e | 58 | ], |
d270cc87 | 59 | ]); |
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60 | this.buildRequestPayload = this.buildRequestPayload.bind(this) as <Request extends JsonType>( |
61 | chargingStation: ChargingStation, | |
62 | commandName: OCPP20RequestCommand, | |
5edd8ba0 | 63 | commandParams?: JsonType, |
31f59c6d | 64 | ) => Request; |
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65 | } |
66 | ||
67 | public async requestHandler<RequestType extends JsonType, ResponseType extends JsonType>( | |
68 | chargingStation: ChargingStation, | |
69 | commandName: OCPP20RequestCommand, | |
70 | commandParams?: JsonType, | |
5edd8ba0 | 71 | params?: RequestParams, |
953d6b02 | 72 | ): Promise<ResponseType> { |
62340a29 | 73 | // FIXME?: add sanity checks on charging station availability, connector availability, connector status, etc. |
953d6b02 | 74 | if (OCPP20ServiceUtils.isRequestCommandSupported(chargingStation, commandName) === true) { |
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75 | return (await this.sendMessage( |
76 | chargingStation, | |
9bf0ef23 | 77 | generateUUID(), |
18bf8274 | 78 | this.buildRequestPayload<RequestType>(chargingStation, commandName, commandParams), |
953d6b02 | 79 | commandName, |
5edd8ba0 | 80 | params, |
617cad0c | 81 | )) as ResponseType; |
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82 | } |
83 | // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError(). | |
84 | throw new OCPPError( | |
85 | ErrorType.NOT_SUPPORTED, | |
86 | `Unsupported OCPP command '${commandName}'`, | |
87 | commandName, | |
5edd8ba0 | 88 | commandParams, |
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89 | ); |
90 | } | |
91 | ||
92 | private buildRequestPayload<Request extends JsonType>( | |
93 | chargingStation: ChargingStation, | |
94 | commandName: OCPP20RequestCommand, | |
5edd8ba0 | 95 | commandParams?: JsonType, |
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96 | ): Request { |
97 | commandParams = commandParams as JsonObject; | |
98 | switch (commandName) { | |
d270cc87 | 99 | case OCPP20RequestCommand.BOOT_NOTIFICATION: |
36c462a4 | 100 | return commandParams as unknown as Request; |
81533a20 | 101 | case OCPP20RequestCommand.HEARTBEAT: |
d8b1fab1 | 102 | return OCPP20Constants.OCPP_RESPONSE_EMPTY as unknown as Request; |
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103 | case OCPP20RequestCommand.STATUS_NOTIFICATION: |
104 | return { | |
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105 | timestamp: new Date(), |
106 | ...commandParams, | |
6e939d9e | 107 | } as unknown as Request; |
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108 | default: |
109 | // OCPPError usage here is debatable: it's an error in the OCPP stack but not targeted to sendError(). | |
110 | throw new OCPPError( | |
111 | ErrorType.NOT_SUPPORTED, | |
112 | // eslint-disable-next-line @typescript-eslint/restrict-template-expressions | |
113 | `Unsupported OCPP command '${commandName}'`, | |
114 | commandName, | |
5edd8ba0 | 115 | commandParams, |
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116 | ); |
117 | } | |
118 | } | |
953d6b02 | 119 | } |