1 import { AsyncResource
} from
'node:async_hooks';
3 import Ajv
, { type JSONSchemaType
} from
'ajv';
4 import ajvFormats from
'ajv-formats';
6 import { OCPPConstants
, OCPPServiceUtils
} from
'./internal';
7 import { type ChargingStation
, ChargingStationUtils
} from
'../../charging-station';
8 import { OCPPError
} from
'../../exception';
12 IncomingRequestCommand
,
17 import { logger
} from
'../../utils';
19 const moduleName
= 'OCPPIncomingRequestService';
21 export abstract class OCPPIncomingRequestService
extends AsyncResource
{
22 private static instance
: OCPPIncomingRequestService
| null = null;
23 private readonly version
: OCPPVersion
;
24 private readonly ajv
: Ajv
;
25 protected abstract jsonSchemas
: Map
<IncomingRequestCommand
, JSONSchemaType
<JsonObject
>>;
27 protected constructor(version
: OCPPVersion
) {
29 this.version
= version
;
31 keywords
: ['javaType'],
32 multipleOfPrecision
: 2,
35 this.incomingRequestHandler
.bind(this);
36 this.validateIncomingRequestPayload
.bind(this);
39 public static getInstance
<T
extends OCPPIncomingRequestService
>(this: new () => T
): T
{
40 if (OCPPIncomingRequestService
.instance
=== null) {
41 OCPPIncomingRequestService
.instance
= new this();
43 return OCPPIncomingRequestService
.instance
as T
;
46 protected handleIncomingRequestError
<T
>(
47 chargingStation
: ChargingStation
,
48 commandName
: IncomingRequestCommand
,
50 params
: HandleErrorParams
<T
> = { throwError
: true }
53 `${chargingStation.logPrefix()} ${moduleName}.handleIncomingRequestError: Incoming request command '${commandName}' error:`,
56 if (!params
?.throwError
&& params
?.errorResponse
) {
57 return params
?.errorResponse
;
59 if (params
?.throwError
&& !params
?.errorResponse
) {
62 if (params
?.throwError
&& params
?.errorResponse
) {
63 return params
?.errorResponse
;
67 protected validateIncomingRequestPayload
<T
extends JsonType
>(
68 chargingStation
: ChargingStation
,
69 commandName
: IncomingRequestCommand
,
70 schema
: JSONSchemaType
<T
>,
73 if (chargingStation
.getPayloadSchemaValidation() === false) {
76 const validate
= this.ajv
.compile(schema
);
77 if (validate(payload
)) {
81 `${chargingStation.logPrefix()} ${moduleName}.validateIncomingRequestPayload: Command '${commandName}' incoming request PDU is invalid: %j`,
85 OCPPServiceUtils
.ajvErrorsToErrorType(validate
.errors
),
86 'Incoming request PDU is invalid',
88 JSON
.stringify(validate
.errors
, null, 2)
92 protected handleRequestClearCache(chargingStation
: ChargingStation
): ClearCacheResponse
{
93 chargingStation
.authorizedTagsCache
.deleteAuthorizedTags(
94 ChargingStationUtils
.getAuthorizationFile(chargingStation
.stationInfo
)
96 return OCPPConstants
.OCPP_RESPONSE_ACCEPTED
;
99 public abstract incomingRequestHandler(
100 chargingStation
: ChargingStation
,
102 commandName
: IncomingRequestCommand
,
103 commandPayload
: JsonType