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7dde0b73 JB |
1 | const Configuration = require('../utils/Configuration'); |
2 | const logger = require('../utils/Logger'); | |
3 | const WebSocket = require('ws'); | |
4 | const { | |
5 | OCPP_JSON_CALL_MESSAGE, | |
6 | OCPP_JSON_CALL_RESULT_MESSAGE, | |
7 | OCPP_JSON_CALL_ERROR_MESSAGE, | |
8 | OCPP_ERROR_INTERNAL_ERROR, | |
9 | OCPP_SOCKET_TIMEOUT, | |
10 | OCPP_ERROR_NOT_IMPLEMENTED, | |
11 | } = require('../utils/Constants'); | |
12 | const Utils = require('../utils/Utils'); | |
13 | const OCPPError = require('./OcppError'); | |
14 | const {v4: uuid} = require('uuid'); | |
15 | const AutomaticTransactionGenerator = require('./AutomaticTransactionGenerator'); | |
16 | const Statistics = require('../utils/Statistics'); | |
17 | const fs = require('fs'); | |
18 | const {performance, PerformanceObserver} = require('perf_hooks'); | |
19 | ||
20 | class ChargingStation { | |
21 | constructor(index, stationTemplate) { | |
22 | this._requests = {}; | |
23 | this._autoReconnectRetryCount = 0; | |
24 | this._autoReconnectMaxRetries = Configuration.getAutoReconnectMaxRetries(); // -1 for unlimited | |
25 | this._autoReconnectTimeout = Configuration.getAutoReconnectTimeout() * 1000; // ms, zero for disabling | |
26 | this._isSocketRestart = false; | |
27 | this._stationInfo = this._buildChargingStation(index, stationTemplate); | |
28 | this._statistics = new Statistics(this._stationInfo.name); | |
29 | this._performanceObserver = new PerformanceObserver((list) => { | |
30 | const entry = list.getEntries()[0]; | |
31 | this._statistics.logPerformance(entry, 'ChargingStation'); | |
32 | this._performanceObserver.disconnect(); | |
33 | }); | |
34 | this._index = index; | |
35 | this._messageQueue = []; | |
36 | this._bootNotificationMessage = { | |
37 | chargePointModel: this._stationInfo.chargePointModel, | |
38 | chargePointVendor: this._stationInfo.chargePointVendor, | |
39 | }; | |
40 | this._configuration = this._getConfiguration(stationTemplate); | |
41 | this._authorizationFile = this._getAuthorizationFile(stationTemplate); | |
42 | this._supervisionUrl = this._getSupervisionURL(index, stationTemplate); | |
43 | } | |
44 | ||
45 | _basicFormatLog() { | |
46 | return Utils.basicFormatLog(` ${this._stationInfo.name}:`); | |
47 | } | |
48 | ||
49 | // eslint-disable-next-line class-methods-use-this | |
50 | _getConfiguration(stationTemplate) { | |
51 | return stationTemplate.Configuration ? stationTemplate.Configuration : {}; | |
52 | } | |
53 | ||
54 | // eslint-disable-next-line class-methods-use-this | |
55 | _getAuthorizationFile(stationTemplate) { | |
56 | return stationTemplate.authorizationFile ? stationTemplate.authorizationFile : ''; | |
57 | } | |
58 | ||
59 | // eslint-disable-next-line class-methods-use-this | |
60 | _getSupervisionURL(index, stationTemplate) { | |
61 | const supervisionUrls = JSON.parse(JSON.stringify(stationTemplate.supervisionURL ? stationTemplate.supervisionURL : Configuration.getSupervisionURLs())); | |
62 | let indexUrl = 0; | |
63 | if (Array.isArray(supervisionUrls)) { | |
64 | if (Configuration.getEquallySupervisionDistribution()) { | |
65 | indexUrl = index % supervisionUrls.length; | |
66 | } else { | |
67 | // Get a random url | |
68 | indexUrl = Math.floor(Math.random() * supervisionUrls.length); | |
69 | } | |
70 | return supervisionUrls[indexUrl]; | |
71 | } | |
72 | return supervisionUrls; | |
73 | } | |
74 | ||
75 | // eslint-disable-next-line class-methods-use-this | |
76 | _getStationName(index, stationTemplate) { | |
77 | return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + index).substr(('000000000' + index).length - 4); | |
78 | } | |
79 | ||
80 | _getAuthorizeRemoteTxRequests() { | |
81 | const authorizeRemoteTxRequests = this._configuration.configurationKey.find((configElement) => configElement.key === 'AuthorizeRemoteTxRequests'); | |
82 | return authorizeRemoteTxRequests ? authorizeRemoteTxRequests.value : false; | |
83 | } | |
84 | ||
85 | _buildChargingStation(index, stationTemplate) { | |
86 | if (Array.isArray(stationTemplate.power)) { | |
87 | stationTemplate.maxPower = stationTemplate.power[Math.floor(Math.random() * stationTemplate.power.length)]; | |
88 | } else { | |
89 | stationTemplate.maxPower = stationTemplate.power; | |
90 | } | |
91 | stationTemplate.name = this._getStationName(index, stationTemplate); | |
92 | return stationTemplate; | |
93 | } | |
94 | ||
95 | async start() { | |
96 | logger.info(this._basicFormatLog() + ' Will communicate with ' + this._supervisionUrl); | |
97 | this._url = this._supervisionUrl + '/' + this._stationInfo.name; | |
98 | this._wsConnection = new WebSocket(this._url, 'ocpp1.6'); | |
99 | if (this._authorizationFile !== '') { | |
100 | try { | |
101 | // load file | |
102 | const fileDescriptor = fs.openSync(this._authorizationFile, 'r'); | |
103 | this._authorizedKeys = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
104 | fs.closeSync(fileDescriptor); | |
105 | // get remote authorization logic | |
106 | // FIXME: move to the constructor | |
107 | this._authorizeRemoteTxRequests = this._getAuthorizeRemoteTxRequests(); | |
108 | // monitor authorization file | |
109 | // eslint-disable-next-line no-unused-vars | |
110 | fs.watchFile(this._authorizationFile, (current, previous) => { | |
111 | try { | |
112 | // reload file | |
113 | const fileDescriptor = fs.openSync(this._authorizationFile, 'r'); | |
114 | this._authorizedKeys = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
115 | fs.closeSync(fileDescriptor); | |
116 | } catch (error) { | |
117 | logger.error(this._basicFormatLog() + ' Authorization file error: ' + error); | |
118 | } | |
119 | }); | |
120 | } catch (error) { | |
121 | logger.error(this._basicFormatLog() + ' Authorization file error: ' + error); | |
122 | } | |
123 | } | |
124 | // Handle Socket incoming messages | |
125 | this._wsConnection.on('message', this.onMessage.bind(this)); | |
126 | // Handle Socket error | |
127 | this._wsConnection.on('error', this.onError.bind(this)); | |
128 | // Handle Socket close | |
129 | this._wsConnection.on('close', this.onClose.bind(this)); | |
130 | // Handle Socket opening connection | |
131 | this._wsConnection.on('open', this.onOpen.bind(this)); | |
132 | // Handle Socket ping | |
133 | this._wsConnection.on('ping', this.onPing.bind(this)); | |
134 | } | |
135 | ||
136 | onOpen() { | |
137 | logger.info(`${this._basicFormatLog()} Is connected to server through ${this._url}`); | |
138 | if (this._isSocketRestart) { | |
139 | this.basicStartMessageSequence(); | |
140 | if (this._messageQueue.length > 0) { | |
141 | this._messageQueue.forEach((message) => { | |
142 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
143 | this._wsConnection.send(message); | |
144 | } | |
145 | }); | |
146 | } | |
147 | } else { | |
148 | // At first start, send Bootnotification | |
149 | try { | |
150 | this.sendMessage(uuid(), this._bootNotificationMessage, OCPP_JSON_CALL_MESSAGE, 'BootNotification'); | |
151 | } catch (error) { | |
152 | logger.error(this._basicFormatLog() + ' Send boot notification error: ' + error); | |
153 | } | |
154 | } | |
155 | this._autoReconnectRetryCount = 0; | |
156 | this._isSocketRestart = false; | |
157 | } | |
158 | ||
159 | onError(error) { | |
160 | switch (error) { | |
161 | case 'ECONNREFUSED': | |
162 | this._isSocketRestart = true; | |
163 | this._reconnect(error); | |
164 | break; | |
165 | default: | |
166 | logger.error(this._basicFormatLog() + ' Socket error: ' + error); | |
167 | break; | |
168 | } | |
169 | } | |
170 | ||
171 | onClose(error) { | |
172 | switch (error) { | |
173 | case 1000: // Normal close | |
174 | case 1005: | |
175 | logger.info(this._basicFormatLog() + ' Socket normally closed ' + error); | |
176 | this._autoReconnectRetryCount = 0; | |
177 | break; | |
178 | default: // Abnormal close | |
179 | this._isSocketRestart = true; | |
180 | this._reconnect(error); | |
181 | break; | |
182 | } | |
183 | } | |
184 | ||
185 | onPing() { | |
186 | logger.info(this._basicFormatLog() + ' Has received a WS ping (rfc6455) from the server'); | |
187 | } | |
188 | ||
189 | async onMessage(message) { | |
190 | // Parse the message | |
191 | const [messageType, messageId, commandName, commandPayload, errorDetails] = JSON.parse(message); | |
192 | ||
193 | try { | |
194 | // Check the Type of message | |
195 | switch (messageType) { | |
196 | // Incoming Message | |
197 | case OCPP_JSON_CALL_MESSAGE: | |
198 | // Process the call | |
199 | this._statistics.addMessage(commandName); | |
200 | await this.handleRequest(messageId, commandName, commandPayload); | |
201 | break; | |
202 | // Outcome Message | |
203 | case OCPP_JSON_CALL_RESULT_MESSAGE: | |
204 | // Respond | |
205 | // eslint-disable-next-line no-case-declarations | |
206 | let responseCallback; let requestPayload; | |
207 | if (Utils.isIterable(this._requests[messageId])) { | |
208 | [responseCallback, , requestPayload] = this._requests[messageId]; | |
209 | } else { | |
210 | throw new Error(`Response request for unknown message id ${messageId} is not iterable`); | |
211 | } | |
212 | if (!responseCallback) { | |
213 | // Error | |
214 | throw new Error(`Response for unknown message id ${messageId}`); | |
215 | } | |
216 | delete this._requests[messageId]; | |
217 | // this._statistics.addMessage(commandName) | |
218 | responseCallback(commandName, requestPayload); | |
219 | break; | |
220 | // Error Message | |
221 | case OCPP_JSON_CALL_ERROR_MESSAGE: | |
222 | if (!this._requests[messageId]) { | |
223 | // Error | |
224 | throw new Error(`Error for unknown message id ${messageId}`); | |
225 | } | |
226 | // eslint-disable-next-line no-case-declarations | |
227 | let rejectCallback; | |
228 | if (Utils.isIterable(this._requests[messageId])) { | |
229 | [, rejectCallback] = this._requests[messageId]; | |
230 | } else { | |
231 | throw new Error(`Error request for unknown message id ${messageId} is not iterable`); | |
232 | } | |
233 | delete this._requests[messageId]; | |
234 | rejectCallback(new OCPPError(commandName, commandPayload, errorDetails)); | |
235 | break; | |
236 | // Error | |
237 | default: | |
238 | throw new Error(`Wrong message type ${messageType}`); | |
239 | } | |
240 | } catch (error) { | |
241 | // Log | |
242 | logger.error('%s Incoming message %j processing error %s on request content %s', this._basicFormatLog(), message, error, this._requests[messageId]); | |
243 | // Send error | |
244 | // await this.sendError(messageId, error); | |
245 | } | |
246 | } | |
247 | ||
248 | _reconnect(error) { | |
249 | logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error); | |
250 | // Stop heartbeat interval | |
251 | if (this._heartbeatSetInterval) { | |
252 | clearInterval(this._heartbeatSetInterval); | |
253 | this._heartbeatSetInterval = null; | |
254 | } | |
255 | // Stop the ATG | |
256 | if (this._stationInfo.AutomaticTransactionGenerator.enable && this._automaticTransactionGeneration && | |
257 | !this._automaticTransactionGeneration._timeToStop) { | |
258 | this._automaticTransactionGeneration.stop(); | |
259 | } | |
260 | if (this._autoReconnectTimeout !== 0 && | |
261 | (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) { | |
262 | logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`); | |
263 | this._autoReconnectRetryCount++; | |
264 | setTimeout(() => { | |
265 | logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount); | |
266 | this.start(); | |
267 | }, this._autoReconnectTimeout); | |
268 | } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) { | |
269 | logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`); | |
270 | } | |
271 | } | |
272 | ||
273 | send(command, messageType = OCPP_JSON_CALL_MESSAGE) { | |
274 | // Send Message | |
275 | return this.sendMessage(uuid(), command, messageType); | |
276 | } | |
277 | ||
278 | sendError(messageId, err) { | |
279 | // Check exception: only OCPP error are accepted | |
280 | const error = (err instanceof OCPPError ? err : new OCPPError(OCPP_ERROR_INTERNAL_ERROR, err.message)); | |
281 | // Send error | |
282 | return this.sendMessage(messageId, error, OCPP_JSON_CALL_ERROR_MESSAGE); | |
283 | } | |
284 | ||
285 | sendMessage(messageId, command, messageType = OCPP_JSON_CALL_RESULT_MESSAGE, commandName = '') { | |
286 | // Send a message through wsConnection | |
287 | const self = this; | |
288 | // Create a promise | |
289 | return new Promise((resolve, reject) => { | |
290 | let messageToSend; | |
291 | // Type of message | |
292 | switch (messageType) { | |
293 | // Request | |
294 | case OCPP_JSON_CALL_MESSAGE: | |
295 | this._statistics.addMessage(commandName); | |
296 | // Build request | |
297 | this._requests[messageId] = [responseCallback, rejectCallback, command]; | |
298 | messageToSend = JSON.stringify([messageType, messageId, commandName, command]); | |
299 | break; | |
300 | // Response | |
301 | case OCPP_JSON_CALL_RESULT_MESSAGE: | |
302 | // Build response | |
303 | messageToSend = JSON.stringify([messageType, messageId, command]); | |
304 | break; | |
305 | // Error Message | |
306 | case OCPP_JSON_CALL_ERROR_MESSAGE: | |
307 | // Build Message | |
308 | // eslint-disable-next-line no-case-declarations | |
309 | const { | |
310 | code, | |
311 | message, | |
312 | details, | |
313 | } = command; | |
314 | this._statistics.addMessage(`Error ${code}`); | |
315 | messageToSend = JSON.stringify([messageType, messageId, code, message, details]); | |
316 | break; | |
317 | } | |
318 | // Check if wsConnection in ready | |
319 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
320 | // Yes: Send Message | |
321 | this._wsConnection.send(messageToSend); | |
322 | } else { | |
323 | // Buffer message until connection is back | |
324 | this._messageQueue.push(messageToSend); | |
325 | } | |
326 | // Request? | |
327 | if (messageType !== OCPP_JSON_CALL_MESSAGE) { | |
328 | // Yes: send Ok | |
329 | resolve(); | |
330 | } else if (this._wsConnection.readyState === WebSocket.OPEN) { | |
331 | // Send timeout in case connection is open otherwise wait for ever | |
332 | // FIXME: Handle message on timeout | |
333 | setTimeout(() => rejectCallback(`Timeout for message ${messageId}`), OCPP_SOCKET_TIMEOUT); | |
334 | } | |
335 | ||
336 | // Function that will receive the request's response | |
337 | function responseCallback(payload, requestPayload) { | |
338 | self._statistics.addMessage(commandName, true); | |
339 | const responseCallbackFn = 'handleResponse' + commandName; | |
340 | if (typeof self[responseCallbackFn] === 'function') { | |
341 | self[responseCallbackFn](payload, requestPayload, self); | |
342 | } else { | |
343 | // logger.error(this._basicFormatLog() + ' Trying to call an undefined callback function: ' + responseCallbackFn) | |
344 | } | |
345 | // Send the response | |
346 | resolve(payload); | |
347 | } | |
348 | ||
349 | // Function that will receive the request's rejection | |
350 | function rejectCallback(reason) { | |
351 | // Build Exception | |
352 | // eslint-disable-next-line no-empty-function | |
353 | self._requests[messageId] = [() => { }, () => { }, '']; // Properly format the request | |
354 | const error = reason instanceof OCPPError ? reason : new Error(reason); | |
355 | // Send error | |
356 | reject(error); | |
357 | } | |
358 | }); | |
359 | } | |
360 | ||
361 | handleResponseBootNotification(payload) { | |
362 | if (payload.status === 'Accepted') { | |
363 | this._heartbeatInterval = payload.interval * 1000; | |
364 | this.basicStartMessageSequence(); | |
365 | } | |
366 | } | |
367 | ||
368 | async basicStartMessageSequence() { | |
369 | this._startHeartbeat(this); | |
370 | if (!this._connectors) { // build connectors | |
371 | this._connectors = {}; | |
372 | const connectorsConfig = JSON.parse(JSON.stringify(this._stationInfo.Connectors)); | |
373 | // determine number of customized connectors | |
374 | let lastConnector; | |
375 | for (lastConnector in connectorsConfig) { | |
376 | if (lastConnector === 0 && this._stationInfo.usedConnectorId0) { | |
377 | this._connectors[lastConnector] = connectorsConfig[lastConnector]; | |
378 | } | |
379 | } | |
380 | let maxConnectors = 0; | |
381 | if (Array.isArray(this._stationInfo.numberOfConnectors)) { | |
382 | // generate some connectors | |
383 | maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length]; | |
384 | } else { | |
385 | maxConnectors = this._stationInfo.numberOfConnectors; | |
386 | } | |
387 | // generate all connectors | |
388 | for (let index = 1; index <= maxConnectors; index++) { | |
389 | const randConnectorID = (this._stationInfo.randomConnectors ? Utils.getRandomInt(lastConnector, 1) : index); | |
390 | this._connectors[index] = connectorsConfig[randConnectorID]; | |
391 | } | |
392 | } | |
393 | ||
394 | for (const connector in this._connectors) { | |
395 | if (!this._connectors[connector].transactionStarted) { | |
396 | if (this._connectors[connector].bootStatus) { | |
397 | setTimeout(() => this.sendStatusNotification(connector, this._connectors[connector].bootStatus), 500); | |
398 | } else { | |
399 | setTimeout(() => this.sendStatusNotification(connector, 'Available'), 500); | |
400 | } | |
401 | } else { | |
402 | setTimeout(() => this.sendStatusNotification(connector, 'Charging'), 500); | |
403 | } | |
404 | } | |
405 | ||
406 | if (this._stationInfo.AutomaticTransactionGenerator.enable) { | |
407 | if (!this._automaticTransactionGeneration) { | |
408 | this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this); | |
409 | } | |
410 | this._automaticTransactionGeneration.start(); | |
411 | } | |
412 | this._statistics.start(); | |
413 | } | |
414 | ||
415 | handleResponseStartTransaction(payload, requestPayload) { | |
416 | this._connectors[requestPayload.connectorId] = { | |
417 | transactionStarted: false, | |
418 | idTag: requestPayload.idTag, | |
419 | }; | |
420 | if (payload.idTagInfo.status === 'Accepted') { | |
421 | for (const connector in this._connectors) { | |
422 | if (connector === requestPayload.connectorId) { | |
423 | this._connectors[connector].transactionStarted = true; | |
424 | this._connectors[connector].transactionId = payload.transactionId; | |
425 | this._connectors[connector].lastConsumptionValue = 0; | |
426 | this._connectors[connector].lastSoC = 0; | |
427 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connector].transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId); | |
428 | this.sendStatusNotification(requestPayload.connectorId, 'Charging'); | |
429 | const configuredMeterInterval = this._configuration.configurationKey.find((value) => value.key === 'meterValueInterval'); | |
430 | this.startMeterValues(requestPayload.connectorId, | |
431 | (configuredMeterInterval ? configuredMeterInterval.value * 1000 : 60000), | |
432 | this); | |
433 | } | |
434 | } | |
435 | } else { | |
436 | logger.error(this._basicFormatLog() + ' Starting transaction id ' + payload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status + ', idTag ' + requestPayload.idTag); | |
437 | for (const connector in this._connectors) { | |
438 | if (connector === requestPayload.connectorId) { | |
439 | this._resetTransactionOnConnector(connector); | |
440 | } | |
441 | } | |
442 | this.sendStatusNotification(requestPayload.connectorId, 'Available'); | |
443 | } | |
444 | } | |
445 | ||
446 | async sendStatusNotification(connectorId, status, errorCode = 'NoError') { | |
447 | try { | |
448 | const payload = { | |
449 | connectorId, | |
450 | errorCode, | |
451 | status, | |
452 | }; | |
453 | await this.sendMessage(uuid(), payload, OCPP_JSON_CALL_MESSAGE, 'StatusNotification'); | |
454 | } catch (error) { | |
455 | logger.error(this._basicFormatLog() + ' Send status error: ' + error); | |
456 | } | |
457 | } | |
458 | ||
459 | // eslint-disable-next-line class-methods-use-this | |
460 | async _startHeartbeat(self) { | |
461 | if (self._heartbeatInterval && !self._heartbeatSetInterval) { | |
462 | logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms'); | |
463 | self._heartbeatSetInterval = setInterval(() => { | |
464 | try { | |
465 | const payload = { | |
466 | currentTime: new Date().toISOString(), | |
467 | }; | |
468 | self.sendMessage(uuid(), payload, OCPP_JSON_CALL_MESSAGE, 'Heartbeat'); | |
469 | } catch (error) { | |
470 | logger.error(self._basicFormatLog() + ' Send heartbeat error: ' + error); | |
471 | } | |
472 | }, self._heartbeatInterval); | |
473 | } else { | |
474 | logger.error(self._basicFormatLog() + ' Heartbeat interval undefined, not starting the heartbeat'); | |
475 | } | |
476 | } | |
477 | ||
478 | async handleRequest(messageId, commandName, commandPayload) { | |
479 | let result; | |
480 | this._statistics.addMessage(commandName, true); | |
481 | // Call | |
482 | if (typeof this['handle' + commandName] === 'function') { | |
483 | try { | |
484 | // Call the method | |
485 | result = await this['handle' + commandName](commandPayload); | |
486 | } catch (error) { | |
487 | // Log | |
488 | logger.error(this._basicFormatLog() + ' Handle request error: ' + error); | |
489 | // Send back response to inform back end | |
490 | await this.sendError(messageId, error); | |
491 | } | |
492 | } else { | |
493 | // Throw Exception | |
494 | await this.sendError(messageId, new OCPPError(OCPP_ERROR_NOT_IMPLEMENTED, 'Not implemented', {})); | |
495 | throw new Error(`${commandName} is not implemented ${JSON.stringify(commandPayload, null, ' ')}`); | |
496 | } | |
497 | // Send Response | |
498 | await this.sendMessage(messageId, result, OCPP_JSON_CALL_RESULT_MESSAGE); | |
499 | } | |
500 | ||
501 | async handleGetConfiguration() { | |
502 | return this._configuration; | |
503 | } | |
504 | ||
505 | async handleChangeConfiguration(commandPayload) { | |
506 | const keyToChange = this._configuration.configurationKey.find((element) => element.key === commandPayload.key); | |
507 | if (keyToChange) { | |
508 | keyToChange.value = commandPayload.value; | |
509 | return { | |
510 | status: 'Accepted', | |
511 | }; | |
512 | } | |
513 | return { | |
514 | status: 'Rejected', | |
515 | }; | |
516 | } | |
517 | ||
518 | async handleRemoteStartTransaction(commandPayload) { | |
519 | const transactionConnectorID = (commandPayload.connectorId ? commandPayload.connectorId : '1'); | |
520 | if (this.isAuthorizationRequested() && this._authorizeRemoteTxRequests) { | |
521 | // check if authorized | |
522 | if (this._authorizedKeys.find((value) => value === commandPayload.idTag)) { | |
523 | // Authorization successful start transaction | |
524 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), 500); | |
525 | return { | |
526 | status: 'Accepted', | |
527 | }; | |
528 | } | |
529 | // Start authorization checks | |
530 | return { | |
531 | status: 'Rejected', | |
532 | }; | |
533 | } | |
534 | // no local authorization check required => start transaction | |
535 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), 500); | |
536 | return { | |
537 | status: 'Accepted', | |
538 | }; | |
539 | } | |
540 | ||
541 | async sendStartTransaction(connectorID, idTag) { | |
542 | try { | |
543 | const payload = { | |
544 | connectorId: connectorID, | |
545 | idTag, | |
546 | meterStart: 0, | |
547 | timestamp: new Date().toISOString(), | |
548 | }; | |
549 | return await this.sendMessage(uuid(), payload, OCPP_JSON_CALL_MESSAGE, 'StartTransaction'); | |
550 | } catch (error) { | |
551 | logger.error(this._basicFormatLog() + ' Send start transaction error: ' + error); | |
552 | this._resetTransactionOnConnector(connectorID); | |
553 | throw error; | |
554 | } | |
555 | } | |
556 | ||
557 | async sendStopTransaction(transactionId, connectorID) { | |
558 | try { | |
559 | const payload = { | |
560 | transactionId, | |
561 | meterStop: 0, | |
562 | timestamp: new Date().toISOString(), | |
563 | }; | |
564 | await this.sendMessage(uuid(), payload, OCPP_JSON_CALL_MESSAGE, 'StopTransaction'); | |
565 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connectorID].transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + connectorID); | |
566 | this.sendStatusNotification(connectorID, 'Available'); | |
567 | } catch (error) { | |
568 | logger.error(this._basicFormatLog() + ' Send stop transaction error: ' + error); | |
569 | throw error; | |
570 | } finally { | |
571 | this._resetTransactionOnConnector(connectorID); | |
572 | } | |
573 | } | |
574 | ||
575 | _resetTransactionOnConnector(connectorID) { | |
576 | this._connectors[connectorID].transactionStarted = false; | |
577 | this._connectors[connectorID].transactionId = null; | |
578 | this._connectors[connectorID].lastConsumptionValue = -1; | |
579 | this._connectors[connectorID].lastSoC = -1; | |
580 | if (this._connectors[connectorID].transactionInterval) { | |
581 | clearInterval(this._connectors[connectorID].transactionInterval); | |
582 | } | |
583 | } | |
584 | ||
585 | // eslint-disable-next-line class-methods-use-this | |
586 | async sendMeterValues(connectorID, interval, self) { | |
587 | try { | |
588 | const sampledValueLcl = { | |
589 | timestamp: new Date().toISOString(), | |
590 | }; | |
591 | const meterValuesClone = JSON.parse(JSON.stringify(self._getConnector(connectorID).MeterValues)); | |
592 | if (Array.isArray(meterValuesClone)) { | |
593 | sampledValueLcl.sampledValue = meterValuesClone; | |
594 | } else { | |
595 | sampledValueLcl.sampledValue = [meterValuesClone]; | |
596 | } | |
597 | for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) { | |
598 | if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') { | |
599 | sampledValueLcl.sampledValue[index].value = Math.floor(Math.random() * 100) + 1; | |
600 | if (sampledValueLcl.sampledValue[index].value > 100) { | |
601 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
602 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
603 | ' value: ' + sampledValueLcl.sampledValue[index].value); | |
604 | } | |
605 | } else { | |
606 | // Persist previous value in connector | |
607 | const connector = self._connectors[connectorID]; | |
608 | let consumption; | |
609 | consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval, 3); | |
610 | if (connector && connector.lastConsumptionValue >= 0) { | |
611 | connector.lastConsumptionValue += consumption; | |
612 | } else { | |
613 | connector.lastConsumptionValue = 0; | |
614 | } | |
615 | consumption = Math.round(connector.lastConsumptionValue * 3600 / interval); | |
616 | logger.info(self._basicFormatLog() + ' ConnectorID ' + connectorID + ' transaction ' + connector.transactionId + ' value ' + connector.lastConsumptionValue); | |
617 | sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue; | |
618 | if (sampledValueLcl.sampledValue[index].value > (self._stationInfo.maxPower * 3600 / interval) || sampledValueLcl.sampledValue[index].value < 500) { | |
619 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
620 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
621 | ' value: ' + sampledValueLcl.sampledValue[index].value + '/' + (self._stationInfo.maxPower * 3600 / interval)); | |
622 | } | |
623 | } | |
624 | } | |
625 | ||
626 | const payload = { | |
627 | connectorId: connectorID, | |
628 | transactionId: self._connectors[connectorID].transactionId, | |
629 | meterValue: [sampledValueLcl], | |
630 | }; | |
631 | await self.sendMessage(uuid(), payload, OCPP_JSON_CALL_MESSAGE, 'MeterValues'); | |
632 | } catch (error) { | |
633 | logger.error(self._basicFormatLog() + ' Send meter values error: ' + error); | |
634 | } | |
635 | } | |
636 | ||
637 | async startMeterValues(connectorID, interval, self) { | |
638 | // if (!this._connectors[connectorID].transactionStarted) { | |
639 | // logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction`); | |
640 | // } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) { | |
641 | // logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction id`); | |
642 | // } | |
643 | this._connectors[connectorID].transactionInterval = setInterval(async () => { | |
644 | const sendMeterValues = performance.timerify(this.sendMeterValues); | |
645 | this._performanceObserver.observe({ | |
646 | entryTypes: ['function'], | |
647 | }); | |
648 | await sendMeterValues(connectorID, interval, self); | |
649 | }, interval); | |
650 | } | |
651 | ||
652 | async handleRemoteStopTransaction(commandPayload) { | |
653 | for (const connector in this._connectors) { | |
654 | if (this._connectors[connector].transactionId === commandPayload.transactionId) { | |
655 | this.sendStopTransaction(commandPayload.transactionId, connector); | |
656 | } | |
657 | } | |
658 | return { | |
659 | status: 'Accepted', | |
660 | }; | |
661 | } | |
662 | ||
663 | isAuthorizationRequested() { | |
664 | return this._authorizedKeys && this._authorizedKeys.length > 0; | |
665 | } | |
666 | ||
667 | getRandomTagId() { | |
668 | const index = Math.round(Math.floor(Math.random() * this._authorizedKeys.length - 1)); | |
669 | return this._authorizedKeys[index]; | |
670 | } | |
671 | ||
672 | _getConnector(number) { | |
673 | return this._stationInfo.Connectors[number]; | |
674 | } | |
675 | } | |
676 | ||
677 | module.exports = ChargingStation; |