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7dde0b73 JB |
1 | const Configuration = require('../utils/Configuration'); |
2 | const logger = require('../utils/Logger'); | |
3 | const WebSocket = require('ws'); | |
f7869514 | 4 | const Constants = require('../utils/Constants'); |
7dde0b73 JB |
5 | const Utils = require('../utils/Utils'); |
6 | const OCPPError = require('./OcppError'); | |
7 | const {v4: uuid} = require('uuid'); | |
8 | const AutomaticTransactionGenerator = require('./AutomaticTransactionGenerator'); | |
9 | const Statistics = require('../utils/Statistics'); | |
10 | const fs = require('fs'); | |
11 | const {performance, PerformanceObserver} = require('perf_hooks'); | |
12 | ||
13 | class ChargingStation { | |
14 | constructor(index, stationTemplate) { | |
15 | this._requests = {}; | |
16 | this._autoReconnectRetryCount = 0; | |
17 | this._autoReconnectMaxRetries = Configuration.getAutoReconnectMaxRetries(); // -1 for unlimited | |
18 | this._autoReconnectTimeout = Configuration.getAutoReconnectTimeout() * 1000; // ms, zero for disabling | |
19 | this._isSocketRestart = false; | |
20 | this._stationInfo = this._buildChargingStation(index, stationTemplate); | |
21 | this._statistics = new Statistics(this._stationInfo.name); | |
22 | this._performanceObserver = new PerformanceObserver((list) => { | |
23 | const entry = list.getEntries()[0]; | |
24 | this._statistics.logPerformance(entry, 'ChargingStation'); | |
25 | this._performanceObserver.disconnect(); | |
26 | }); | |
27 | this._index = index; | |
28 | this._messageQueue = []; | |
29 | this._bootNotificationMessage = { | |
30 | chargePointModel: this._stationInfo.chargePointModel, | |
31 | chargePointVendor: this._stationInfo.chargePointVendor, | |
32 | }; | |
33 | this._configuration = this._getConfiguration(stationTemplate); | |
34 | this._authorizationFile = this._getAuthorizationFile(stationTemplate); | |
35 | this._supervisionUrl = this._getSupervisionURL(index, stationTemplate); | |
36 | } | |
37 | ||
38 | _basicFormatLog() { | |
39 | return Utils.basicFormatLog(` ${this._stationInfo.name}:`); | |
40 | } | |
41 | ||
42 | // eslint-disable-next-line class-methods-use-this | |
43 | _getConfiguration(stationTemplate) { | |
44 | return stationTemplate.Configuration ? stationTemplate.Configuration : {}; | |
45 | } | |
46 | ||
47 | // eslint-disable-next-line class-methods-use-this | |
48 | _getAuthorizationFile(stationTemplate) { | |
49 | return stationTemplate.authorizationFile ? stationTemplate.authorizationFile : ''; | |
50 | } | |
51 | ||
52 | // eslint-disable-next-line class-methods-use-this | |
53 | _getSupervisionURL(index, stationTemplate) { | |
54 | const supervisionUrls = JSON.parse(JSON.stringify(stationTemplate.supervisionURL ? stationTemplate.supervisionURL : Configuration.getSupervisionURLs())); | |
55 | let indexUrl = 0; | |
56 | if (Array.isArray(supervisionUrls)) { | |
57 | if (Configuration.getEquallySupervisionDistribution()) { | |
58 | indexUrl = index % supervisionUrls.length; | |
59 | } else { | |
60 | // Get a random url | |
61 | indexUrl = Math.floor(Math.random() * supervisionUrls.length); | |
62 | } | |
63 | return supervisionUrls[indexUrl]; | |
64 | } | |
65 | return supervisionUrls; | |
66 | } | |
67 | ||
68 | // eslint-disable-next-line class-methods-use-this | |
69 | _getStationName(index, stationTemplate) { | |
70 | return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + index).substr(('000000000' + index).length - 4); | |
71 | } | |
72 | ||
73 | _getAuthorizeRemoteTxRequests() { | |
74 | const authorizeRemoteTxRequests = this._configuration.configurationKey.find((configElement) => configElement.key === 'AuthorizeRemoteTxRequests'); | |
a6e68f34 | 75 | return authorizeRemoteTxRequests ? Utils.convertToBoolean(authorizeRemoteTxRequests.value) : false; |
7dde0b73 JB |
76 | } |
77 | ||
def3d48e JB |
78 | _getLocalAuthListEnabled() { |
79 | const localAuthListEnabled = this._configuration.configurationKey.find((configElement) => configElement.key === 'LocalAuthListEnabled'); | |
80 | return localAuthListEnabled ? Utils.convertToBoolean(localAuthListEnabled.value) : false; | |
81 | } | |
82 | ||
7dde0b73 JB |
83 | _buildChargingStation(index, stationTemplate) { |
84 | if (Array.isArray(stationTemplate.power)) { | |
85 | stationTemplate.maxPower = stationTemplate.power[Math.floor(Math.random() * stationTemplate.power.length)]; | |
86 | } else { | |
87 | stationTemplate.maxPower = stationTemplate.power; | |
88 | } | |
89 | stationTemplate.name = this._getStationName(index, stationTemplate); | |
90 | return stationTemplate; | |
91 | } | |
92 | ||
93 | async start() { | |
94 | logger.info(this._basicFormatLog() + ' Will communicate with ' + this._supervisionUrl); | |
95 | this._url = this._supervisionUrl + '/' + this._stationInfo.name; | |
96 | this._wsConnection = new WebSocket(this._url, 'ocpp1.6'); | |
def3d48e | 97 | if (this._authorizationFile) { |
7dde0b73 JB |
98 | try { |
99 | // load file | |
100 | const fileDescriptor = fs.openSync(this._authorizationFile, 'r'); | |
101 | this._authorizedKeys = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
102 | fs.closeSync(fileDescriptor); | |
7dde0b73 JB |
103 | // monitor authorization file |
104 | // eslint-disable-next-line no-unused-vars | |
105 | fs.watchFile(this._authorizationFile, (current, previous) => { | |
106 | try { | |
107 | // reload file | |
108 | const fileDescriptor = fs.openSync(this._authorizationFile, 'r'); | |
109 | this._authorizedKeys = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
110 | fs.closeSync(fileDescriptor); | |
111 | } catch (error) { | |
112 | logger.error(this._basicFormatLog() + ' Authorization file error: ' + error); | |
113 | } | |
114 | }); | |
115 | } catch (error) { | |
116 | logger.error(this._basicFormatLog() + ' Authorization file error: ' + error); | |
117 | } | |
def3d48e JB |
118 | } else { |
119 | logger.info(this._basicFormatLog() + ' No authorization file given in template ' + this._stationInfo.baseName); | |
7dde0b73 JB |
120 | } |
121 | // Handle Socket incoming messages | |
122 | this._wsConnection.on('message', this.onMessage.bind(this)); | |
123 | // Handle Socket error | |
124 | this._wsConnection.on('error', this.onError.bind(this)); | |
125 | // Handle Socket close | |
126 | this._wsConnection.on('close', this.onClose.bind(this)); | |
127 | // Handle Socket opening connection | |
128 | this._wsConnection.on('open', this.onOpen.bind(this)); | |
129 | // Handle Socket ping | |
130 | this._wsConnection.on('ping', this.onPing.bind(this)); | |
131 | } | |
132 | ||
133 | onOpen() { | |
134 | logger.info(`${this._basicFormatLog()} Is connected to server through ${this._url}`); | |
135 | if (this._isSocketRestart) { | |
136 | this.basicStartMessageSequence(); | |
137 | if (this._messageQueue.length > 0) { | |
138 | this._messageQueue.forEach((message) => { | |
139 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
140 | this._wsConnection.send(message); | |
141 | } | |
142 | }); | |
143 | } | |
144 | } else { | |
84393381 | 145 | // At first start, send BootNotification |
7dde0b73 | 146 | try { |
f7869514 | 147 | this.sendMessage(uuid(), this._bootNotificationMessage, Constants.OCPP_JSON_CALL_MESSAGE, 'BootNotification'); |
7dde0b73 JB |
148 | } catch (error) { |
149 | logger.error(this._basicFormatLog() + ' Send boot notification error: ' + error); | |
150 | } | |
151 | } | |
152 | this._autoReconnectRetryCount = 0; | |
153 | this._isSocketRestart = false; | |
154 | } | |
155 | ||
156 | onError(error) { | |
157 | switch (error) { | |
158 | case 'ECONNREFUSED': | |
159 | this._isSocketRestart = true; | |
160 | this._reconnect(error); | |
161 | break; | |
162 | default: | |
163 | logger.error(this._basicFormatLog() + ' Socket error: ' + error); | |
164 | break; | |
165 | } | |
166 | } | |
167 | ||
168 | onClose(error) { | |
169 | switch (error) { | |
170 | case 1000: // Normal close | |
171 | case 1005: | |
172 | logger.info(this._basicFormatLog() + ' Socket normally closed ' + error); | |
173 | this._autoReconnectRetryCount = 0; | |
174 | break; | |
175 | default: // Abnormal close | |
176 | this._isSocketRestart = true; | |
177 | this._reconnect(error); | |
178 | break; | |
179 | } | |
180 | } | |
181 | ||
182 | onPing() { | |
183 | logger.info(this._basicFormatLog() + ' Has received a WS ping (rfc6455) from the server'); | |
184 | } | |
185 | ||
186 | async onMessage(message) { | |
2d8cee5a | 187 | let [messageType, messageId, commandName, commandPayload, errorDetails] = [0, '', Constants.ENTITY_CHARGING_STATION, '', '']; |
7dde0b73 | 188 | try { |
2d8cee5a JB |
189 | // Parse the message |
190 | [messageType, messageId, commandName, commandPayload, errorDetails] = JSON.parse(message); | |
191 | ||
7dde0b73 JB |
192 | // Check the Type of message |
193 | switch (messageType) { | |
194 | // Incoming Message | |
f7869514 | 195 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
196 | // Process the call |
197 | this._statistics.addMessage(commandName); | |
198 | await this.handleRequest(messageId, commandName, commandPayload); | |
199 | break; | |
200 | // Outcome Message | |
f7869514 | 201 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
202 | // Respond |
203 | // eslint-disable-next-line no-case-declarations | |
204 | let responseCallback; let requestPayload; | |
205 | if (Utils.isIterable(this._requests[messageId])) { | |
206 | [responseCallback, , requestPayload] = this._requests[messageId]; | |
207 | } else { | |
208 | throw new Error(`Response request for unknown message id ${messageId} is not iterable`); | |
209 | } | |
210 | if (!responseCallback) { | |
211 | // Error | |
212 | throw new Error(`Response for unknown message id ${messageId}`); | |
213 | } | |
214 | delete this._requests[messageId]; | |
215 | // this._statistics.addMessage(commandName) | |
216 | responseCallback(commandName, requestPayload); | |
217 | break; | |
218 | // Error Message | |
f7869514 | 219 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 JB |
220 | if (!this._requests[messageId]) { |
221 | // Error | |
222 | throw new Error(`Error for unknown message id ${messageId}`); | |
223 | } | |
224 | // eslint-disable-next-line no-case-declarations | |
225 | let rejectCallback; | |
226 | if (Utils.isIterable(this._requests[messageId])) { | |
227 | [, rejectCallback] = this._requests[messageId]; | |
228 | } else { | |
229 | throw new Error(`Error request for unknown message id ${messageId} is not iterable`); | |
230 | } | |
231 | delete this._requests[messageId]; | |
232 | rejectCallback(new OCPPError(commandName, commandPayload, errorDetails)); | |
233 | break; | |
234 | // Error | |
235 | default: | |
236 | throw new Error(`Wrong message type ${messageType}`); | |
237 | } | |
238 | } catch (error) { | |
239 | // Log | |
240 | logger.error('%s Incoming message %j processing error %s on request content %s', this._basicFormatLog(), message, error, this._requests[messageId]); | |
241 | // Send error | |
242 | // await this.sendError(messageId, error); | |
243 | } | |
244 | } | |
245 | ||
246 | _reconnect(error) { | |
247 | logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error); | |
248 | // Stop heartbeat interval | |
249 | if (this._heartbeatSetInterval) { | |
250 | clearInterval(this._heartbeatSetInterval); | |
251 | this._heartbeatSetInterval = null; | |
252 | } | |
253 | // Stop the ATG | |
254 | if (this._stationInfo.AutomaticTransactionGenerator.enable && this._automaticTransactionGeneration && | |
255 | !this._automaticTransactionGeneration._timeToStop) { | |
256 | this._automaticTransactionGeneration.stop(); | |
257 | } | |
258 | if (this._autoReconnectTimeout !== 0 && | |
259 | (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) { | |
260 | logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`); | |
261 | this._autoReconnectRetryCount++; | |
262 | setTimeout(() => { | |
263 | logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount); | |
264 | this.start(); | |
265 | }, this._autoReconnectTimeout); | |
266 | } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) { | |
267 | logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`); | |
268 | } | |
269 | } | |
270 | ||
f7869514 | 271 | send(command, messageType = Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 JB |
272 | // Send Message |
273 | return this.sendMessage(uuid(), command, messageType); | |
274 | } | |
275 | ||
276 | sendError(messageId, err) { | |
277 | // Check exception: only OCPP error are accepted | |
f7869514 | 278 | const error = (err instanceof OCPPError ? err : new OCPPError(Constants.OCPP_ERROR_INTERNAL_ERROR, err.message)); |
7dde0b73 | 279 | // Send error |
f7869514 | 280 | return this.sendMessage(messageId, error, Constants.OCPP_JSON_CALL_ERROR_MESSAGE); |
7dde0b73 JB |
281 | } |
282 | ||
f7869514 | 283 | sendMessage(messageId, command, messageType = Constants.OCPP_JSON_CALL_RESULT_MESSAGE, commandName = '') { |
7dde0b73 JB |
284 | // Send a message through wsConnection |
285 | const self = this; | |
286 | // Create a promise | |
287 | return new Promise((resolve, reject) => { | |
288 | let messageToSend; | |
289 | // Type of message | |
290 | switch (messageType) { | |
291 | // Request | |
f7869514 | 292 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
293 | this._statistics.addMessage(commandName); |
294 | // Build request | |
295 | this._requests[messageId] = [responseCallback, rejectCallback, command]; | |
296 | messageToSend = JSON.stringify([messageType, messageId, commandName, command]); | |
297 | break; | |
298 | // Response | |
f7869514 | 299 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
300 | // Build response |
301 | messageToSend = JSON.stringify([messageType, messageId, command]); | |
302 | break; | |
303 | // Error Message | |
f7869514 | 304 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 | 305 | // Build Message |
894a1780 JB |
306 | this._statistics.addMessage(`Error ${command.code}`); |
307 | messageToSend = JSON.stringify([messageType, messageId, command.code ? command.code : Constants.OCPP_ERROR_GENERIC_ERROR, command.message ? command.message : '', command.details ? command.details : {}]); | |
7dde0b73 JB |
308 | break; |
309 | } | |
310 | // Check if wsConnection in ready | |
311 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
312 | // Yes: Send Message | |
313 | this._wsConnection.send(messageToSend); | |
314 | } else { | |
315 | // Buffer message until connection is back | |
316 | this._messageQueue.push(messageToSend); | |
317 | } | |
318 | // Request? | |
f7869514 | 319 | if (messageType !== Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 JB |
320 | // Yes: send Ok |
321 | resolve(); | |
322 | } else if (this._wsConnection.readyState === WebSocket.OPEN) { | |
323 | // Send timeout in case connection is open otherwise wait for ever | |
324 | // FIXME: Handle message on timeout | |
f7869514 | 325 | setTimeout(() => rejectCallback(`Timeout for message ${messageId}`), Constants.OCPP_SOCKET_TIMEOUT); |
7dde0b73 JB |
326 | } |
327 | ||
328 | // Function that will receive the request's response | |
329 | function responseCallback(payload, requestPayload) { | |
330 | self._statistics.addMessage(commandName, true); | |
331 | const responseCallbackFn = 'handleResponse' + commandName; | |
332 | if (typeof self[responseCallbackFn] === 'function') { | |
333 | self[responseCallbackFn](payload, requestPayload, self); | |
334 | } else { | |
335 | // logger.error(this._basicFormatLog() + ' Trying to call an undefined callback function: ' + responseCallbackFn) | |
336 | } | |
337 | // Send the response | |
338 | resolve(payload); | |
339 | } | |
340 | ||
341 | // Function that will receive the request's rejection | |
342 | function rejectCallback(reason) { | |
343 | // Build Exception | |
344 | // eslint-disable-next-line no-empty-function | |
345 | self._requests[messageId] = [() => { }, () => { }, '']; // Properly format the request | |
346 | const error = reason instanceof OCPPError ? reason : new Error(reason); | |
347 | // Send error | |
348 | reject(error); | |
349 | } | |
350 | }); | |
351 | } | |
352 | ||
353 | handleResponseBootNotification(payload) { | |
354 | if (payload.status === 'Accepted') { | |
355 | this._heartbeatInterval = payload.interval * 1000; | |
356 | this.basicStartMessageSequence(); | |
357 | } | |
358 | } | |
359 | ||
360 | async basicStartMessageSequence() { | |
361 | this._startHeartbeat(this); | |
362 | if (!this._connectors) { // build connectors | |
363 | this._connectors = {}; | |
364 | const connectorsConfig = JSON.parse(JSON.stringify(this._stationInfo.Connectors)); | |
365 | // determine number of customized connectors | |
366 | let lastConnector; | |
367 | for (lastConnector in connectorsConfig) { | |
84393381 | 368 | if (Utils.convertToInt(lastConnector) === 0 && this._stationInfo.usedConnectorId0) { |
7dde0b73 JB |
369 | this._connectors[lastConnector] = connectorsConfig[lastConnector]; |
370 | } | |
371 | } | |
372 | let maxConnectors = 0; | |
373 | if (Array.isArray(this._stationInfo.numberOfConnectors)) { | |
374 | // generate some connectors | |
375 | maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length]; | |
376 | } else { | |
377 | maxConnectors = this._stationInfo.numberOfConnectors; | |
378 | } | |
379 | // generate all connectors | |
380 | for (let index = 1; index <= maxConnectors; index++) { | |
381 | const randConnectorID = (this._stationInfo.randomConnectors ? Utils.getRandomInt(lastConnector, 1) : index); | |
382 | this._connectors[index] = connectorsConfig[randConnectorID]; | |
383 | } | |
384 | } | |
385 | ||
386 | for (const connector in this._connectors) { | |
387 | if (!this._connectors[connector].transactionStarted) { | |
388 | if (this._connectors[connector].bootStatus) { | |
389 | setTimeout(() => this.sendStatusNotification(connector, this._connectors[connector].bootStatus), 500); | |
390 | } else { | |
391 | setTimeout(() => this.sendStatusNotification(connector, 'Available'), 500); | |
392 | } | |
393 | } else { | |
394 | setTimeout(() => this.sendStatusNotification(connector, 'Charging'), 500); | |
395 | } | |
396 | } | |
397 | ||
398 | if (this._stationInfo.AutomaticTransactionGenerator.enable) { | |
399 | if (!this._automaticTransactionGeneration) { | |
400 | this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this); | |
401 | } | |
402 | this._automaticTransactionGeneration.start(); | |
403 | } | |
404 | this._statistics.start(); | |
405 | } | |
406 | ||
407 | handleResponseStartTransaction(payload, requestPayload) { | |
a6e68f34 | 408 | // Reset connector transaction related attributes |
84393381 JB |
409 | this._connectors[requestPayload.connectorId].transactionStarted = false; |
410 | this._connectors[requestPayload.connectorId].idTag = requestPayload.idTag; | |
411 | ||
7dde0b73 JB |
412 | if (payload.idTagInfo.status === 'Accepted') { |
413 | for (const connector in this._connectors) { | |
def3d48e | 414 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
415 | this._connectors[connector].transactionStarted = true; |
416 | this._connectors[connector].transactionId = payload.transactionId; | |
417 | this._connectors[connector].lastConsumptionValue = 0; | |
418 | this._connectors[connector].lastSoC = 0; | |
84393381 | 419 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connector].transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId + ' with idTag ' + requestPayload.idTag); |
7dde0b73 | 420 | this.sendStatusNotification(requestPayload.connectorId, 'Charging'); |
a6e68f34 | 421 | const configuredMeterValueSampleInterval = this._configuration.configurationKey.find((value) => value.key === 'MeterValueSampleInterval'); |
7dde0b73 | 422 | this.startMeterValues(requestPayload.connectorId, |
a6e68f34 | 423 | (configuredMeterValueSampleInterval ? configuredMeterValueSampleInterval.value * 1000 : 60000), |
7dde0b73 JB |
424 | this); |
425 | } | |
426 | } | |
427 | } else { | |
428 | logger.error(this._basicFormatLog() + ' Starting transaction id ' + payload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status + ', idTag ' + requestPayload.idTag); | |
429 | for (const connector in this._connectors) { | |
def3d48e | 430 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
431 | this._resetTransactionOnConnector(connector); |
432 | } | |
433 | } | |
434 | this.sendStatusNotification(requestPayload.connectorId, 'Available'); | |
435 | } | |
436 | } | |
437 | ||
438 | async sendStatusNotification(connectorId, status, errorCode = 'NoError') { | |
439 | try { | |
440 | const payload = { | |
441 | connectorId, | |
442 | errorCode, | |
443 | status, | |
444 | }; | |
f7869514 | 445 | await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StatusNotification'); |
7dde0b73 JB |
446 | } catch (error) { |
447 | logger.error(this._basicFormatLog() + ' Send status error: ' + error); | |
448 | } | |
449 | } | |
450 | ||
451 | // eslint-disable-next-line class-methods-use-this | |
452 | async _startHeartbeat(self) { | |
453 | if (self._heartbeatInterval && !self._heartbeatSetInterval) { | |
454 | logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms'); | |
455 | self._heartbeatSetInterval = setInterval(() => { | |
456 | try { | |
457 | const payload = { | |
458 | currentTime: new Date().toISOString(), | |
459 | }; | |
f7869514 | 460 | self.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'Heartbeat'); |
7dde0b73 JB |
461 | } catch (error) { |
462 | logger.error(self._basicFormatLog() + ' Send heartbeat error: ' + error); | |
463 | } | |
464 | }, self._heartbeatInterval); | |
465 | } else { | |
466 | logger.error(self._basicFormatLog() + ' Heartbeat interval undefined, not starting the heartbeat'); | |
467 | } | |
468 | } | |
469 | ||
470 | async handleRequest(messageId, commandName, commandPayload) { | |
471 | let result; | |
472 | this._statistics.addMessage(commandName, true); | |
473 | // Call | |
474 | if (typeof this['handle' + commandName] === 'function') { | |
475 | try { | |
476 | // Call the method | |
477 | result = await this['handle' + commandName](commandPayload); | |
478 | } catch (error) { | |
479 | // Log | |
480 | logger.error(this._basicFormatLog() + ' Handle request error: ' + error); | |
481 | // Send back response to inform back end | |
482 | await this.sendError(messageId, error); | |
483 | } | |
484 | } else { | |
84393381 | 485 | // Throw exception |
f7869514 | 486 | await this.sendError(messageId, new OCPPError(Constants.OCPP_ERROR_NOT_IMPLEMENTED, 'Not implemented', {})); |
7dde0b73 JB |
487 | throw new Error(`${commandName} is not implemented ${JSON.stringify(commandPayload, null, ' ')}`); |
488 | } | |
84393381 | 489 | // Send response |
f7869514 | 490 | await this.sendMessage(messageId, result, Constants.OCPP_JSON_CALL_RESULT_MESSAGE); |
7dde0b73 JB |
491 | } |
492 | ||
493 | async handleGetConfiguration() { | |
494 | return this._configuration; | |
495 | } | |
496 | ||
497 | async handleChangeConfiguration(commandPayload) { | |
498 | const keyToChange = this._configuration.configurationKey.find((element) => element.key === commandPayload.key); | |
a6e68f34 JB |
499 | if (keyToChange && !Utils.convertToBoolean(keyToChange.readonly)) { |
500 | const keyIndex = this._configuration.configurationKey.indexOf(keyToChange); | |
501 | this._configuration.configurationKey[keyIndex].value = commandPayload.value; | |
dcab13bd | 502 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 | 503 | } |
dcab13bd | 504 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 JB |
505 | } |
506 | ||
507 | async handleRemoteStartTransaction(commandPayload) { | |
508 | const transactionConnectorID = (commandPayload.connectorId ? commandPayload.connectorId : '1'); | |
def3d48e | 509 | if (this.hasAuthorizationKeys() && this._getLocalAuthListEnabled() && this._getAuthorizeRemoteTxRequests()) { |
dcab13bd | 510 | // Check if authorized |
7dde0b73 JB |
511 | if (this._authorizedKeys.find((value) => value === commandPayload.idTag)) { |
512 | // Authorization successful start transaction | |
513 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), 500); | |
84393381 | 514 | logger.info(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' with idTag ' + commandPayload.idTag); |
dcab13bd | 515 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
516 | } |
517 | // Start authorization checks | |
84393381 | 518 | logger.error(this._basicFormatLog() + ' Remote starting transaction REJECTED with status ' + commandPayload.idTagInfo.status + ', idTag ' + commandPayload.idTag); |
dcab13bd | 519 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 | 520 | } |
dcab13bd | 521 | // No local authorization check required => start transaction |
7dde0b73 | 522 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), 500); |
84393381 | 523 | logger.info(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' with idTag ' + commandPayload.idTag); |
dcab13bd | 524 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
525 | } |
526 | ||
527 | async sendStartTransaction(connectorID, idTag) { | |
528 | try { | |
529 | const payload = { | |
530 | connectorId: connectorID, | |
531 | idTag, | |
532 | meterStart: 0, | |
533 | timestamp: new Date().toISOString(), | |
534 | }; | |
f7869514 | 535 | return await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StartTransaction'); |
7dde0b73 JB |
536 | } catch (error) { |
537 | logger.error(this._basicFormatLog() + ' Send start transaction error: ' + error); | |
538 | this._resetTransactionOnConnector(connectorID); | |
539 | throw error; | |
540 | } | |
541 | } | |
542 | ||
543 | async sendStopTransaction(transactionId, connectorID) { | |
544 | try { | |
545 | const payload = { | |
546 | transactionId, | |
547 | meterStop: 0, | |
548 | timestamp: new Date().toISOString(), | |
549 | }; | |
f7869514 | 550 | await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StopTransaction'); |
7dde0b73 JB |
551 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connectorID].transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + connectorID); |
552 | this.sendStatusNotification(connectorID, 'Available'); | |
553 | } catch (error) { | |
554 | logger.error(this._basicFormatLog() + ' Send stop transaction error: ' + error); | |
555 | throw error; | |
556 | } finally { | |
557 | this._resetTransactionOnConnector(connectorID); | |
558 | } | |
559 | } | |
560 | ||
561 | _resetTransactionOnConnector(connectorID) { | |
562 | this._connectors[connectorID].transactionStarted = false; | |
563 | this._connectors[connectorID].transactionId = null; | |
564 | this._connectors[connectorID].lastConsumptionValue = -1; | |
565 | this._connectors[connectorID].lastSoC = -1; | |
566 | if (this._connectors[connectorID].transactionInterval) { | |
567 | clearInterval(this._connectors[connectorID].transactionInterval); | |
568 | } | |
569 | } | |
570 | ||
571 | // eslint-disable-next-line class-methods-use-this | |
572 | async sendMeterValues(connectorID, interval, self) { | |
573 | try { | |
574 | const sampledValueLcl = { | |
575 | timestamp: new Date().toISOString(), | |
576 | }; | |
577 | const meterValuesClone = JSON.parse(JSON.stringify(self._getConnector(connectorID).MeterValues)); | |
578 | if (Array.isArray(meterValuesClone)) { | |
579 | sampledValueLcl.sampledValue = meterValuesClone; | |
580 | } else { | |
581 | sampledValueLcl.sampledValue = [meterValuesClone]; | |
582 | } | |
583 | for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) { | |
584 | if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') { | |
585 | sampledValueLcl.sampledValue[index].value = Math.floor(Math.random() * 100) + 1; | |
586 | if (sampledValueLcl.sampledValue[index].value > 100) { | |
587 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
588 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
589 | ' value: ' + sampledValueLcl.sampledValue[index].value); | |
590 | } | |
591 | } else { | |
592 | // Persist previous value in connector | |
593 | const connector = self._connectors[connectorID]; | |
594 | let consumption; | |
a6e68f34 | 595 | consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval, 4); |
7dde0b73 JB |
596 | if (connector && connector.lastConsumptionValue >= 0) { |
597 | connector.lastConsumptionValue += consumption; | |
598 | } else { | |
599 | connector.lastConsumptionValue = 0; | |
600 | } | |
601 | consumption = Math.round(connector.lastConsumptionValue * 3600 / interval); | |
602 | logger.info(self._basicFormatLog() + ' ConnectorID ' + connectorID + ' transaction ' + connector.transactionId + ' value ' + connector.lastConsumptionValue); | |
603 | sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue; | |
604 | if (sampledValueLcl.sampledValue[index].value > (self._stationInfo.maxPower * 3600 / interval) || sampledValueLcl.sampledValue[index].value < 500) { | |
605 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
606 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
607 | ' value: ' + sampledValueLcl.sampledValue[index].value + '/' + (self._stationInfo.maxPower * 3600 / interval)); | |
608 | } | |
609 | } | |
610 | } | |
611 | ||
612 | const payload = { | |
613 | connectorId: connectorID, | |
614 | transactionId: self._connectors[connectorID].transactionId, | |
615 | meterValue: [sampledValueLcl], | |
616 | }; | |
f7869514 | 617 | await self.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'MeterValues'); |
7dde0b73 JB |
618 | } catch (error) { |
619 | logger.error(self._basicFormatLog() + ' Send meter values error: ' + error); | |
620 | } | |
621 | } | |
622 | ||
623 | async startMeterValues(connectorID, interval, self) { | |
84393381 JB |
624 | if (!this._connectors[connectorID].transactionStarted) { |
625 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction`); | |
626 | } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) { | |
627 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction id`); | |
628 | } | |
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629 | this._connectors[connectorID].transactionInterval = setInterval(async () => { |
630 | const sendMeterValues = performance.timerify(this.sendMeterValues); | |
631 | this._performanceObserver.observe({ | |
632 | entryTypes: ['function'], | |
633 | }); | |
634 | await sendMeterValues(connectorID, interval, self); | |
635 | }, interval); | |
636 | } | |
637 | ||
638 | async handleRemoteStopTransaction(commandPayload) { | |
639 | for (const connector in this._connectors) { | |
640 | if (this._connectors[connector].transactionId === commandPayload.transactionId) { | |
641 | this.sendStopTransaction(commandPayload.transactionId, connector); | |
642 | } | |
643 | } | |
dcab13bd | 644 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
645 | } |
646 | ||
def3d48e | 647 | hasAuthorizationKeys() { |
7dde0b73 JB |
648 | return this._authorizedKeys && this._authorizedKeys.length > 0; |
649 | } | |
650 | ||
651 | getRandomTagId() { | |
652 | const index = Math.round(Math.floor(Math.random() * this._authorizedKeys.length - 1)); | |
653 | return this._authorizedKeys[index]; | |
654 | } | |
655 | ||
656 | _getConnector(number) { | |
657 | return this._stationInfo.Connectors[number]; | |
658 | } | |
659 | } | |
660 | ||
661 | module.exports = ChargingStation; |