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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 { | |
2e6f5966 JB |
14 | constructor(index, stationTemplateFile) { |
15 | this._index = index; | |
16 | this._stationTemplateFile = stationTemplateFile; | |
17 | this._initialize(); | |
18 | ||
7dde0b73 JB |
19 | this._autoReconnectRetryCount = 0; |
20 | this._autoReconnectMaxRetries = Configuration.getAutoReconnectMaxRetries(); // -1 for unlimited | |
21 | this._autoReconnectTimeout = Configuration.getAutoReconnectTimeout() * 1000; // ms, zero for disabling | |
2e6f5966 JB |
22 | |
23 | this._requests = {}; | |
24 | this._messageQueue = []; | |
25 | ||
7dde0b73 | 26 | this._isSocketRestart = false; |
2e6f5966 JB |
27 | } |
28 | ||
29 | _initialize() { | |
30 | this._stationInfo = this._buildStationInfo(); | |
31 | this._bootNotificationMessage = { | |
32 | chargePointModel: this._stationInfo.chargePointModel, | |
33 | chargePointVendor: this._stationInfo.chargePointVendor, | |
34 | }; | |
35 | this._configuration = this._getConfiguration(); | |
36 | this._authorizedTags = this._getAuthorizedTags(); | |
37 | this._supervisionUrl = this._getSupervisionURL(); | |
7dde0b73 JB |
38 | this._statistics = new Statistics(this._stationInfo.name); |
39 | this._performanceObserver = new PerformanceObserver((list) => { | |
40 | const entry = list.getEntries()[0]; | |
41 | this._statistics.logPerformance(entry, 'ChargingStation'); | |
42 | this._performanceObserver.disconnect(); | |
43 | }); | |
7dde0b73 JB |
44 | } |
45 | ||
46 | _basicFormatLog() { | |
47 | return Utils.basicFormatLog(` ${this._stationInfo.name}:`); | |
48 | } | |
49 | ||
2e6f5966 JB |
50 | _getConfiguration() { |
51 | return this._stationInfo.Configuration ? this._stationInfo.Configuration : {}; | |
7dde0b73 JB |
52 | } |
53 | ||
2e6f5966 JB |
54 | _getAuthorizationFile() { |
55 | return this._stationInfo.authorizationFile ? this._stationInfo.authorizationFile : ''; | |
7dde0b73 JB |
56 | } |
57 | ||
2e6f5966 JB |
58 | _getAuthorizedTags() { |
59 | let authorizedTags = []; | |
60 | const authorizationFile = this._getAuthorizationFile(); | |
61 | if (authorizationFile) { | |
62 | try { | |
63 | // Load authorization file | |
64 | const fileDescriptor = fs.openSync(authorizationFile, 'r'); | |
65 | authorizedTags = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
66 | fs.closeSync(fileDescriptor); | |
67 | } catch (error) { | |
68 | logger.error(this._basicFormatLog() + ' Authorization file loading error: ' + error); | |
69 | } | |
70 | } else { | |
71 | logger.info(this._basicFormatLog() + ' No authorization file given in template file ' + this._stationTemplateFile); | |
72 | } | |
73 | return authorizedTags; | |
74 | } | |
75 | ||
76 | _startAuthorizationFileMonitoring() { | |
77 | // eslint-disable-next-line no-unused-vars | |
78 | fs.watchFile(this._getAuthorizationFile(), (current, previous) => { | |
79 | try { | |
80 | logger.debug(this._basicFormatLog() + ' Authorization file ' + this._getAuthorizationFile() + ' have changed, reload'); | |
81 | // Initialize _authorizedTags | |
82 | this._authorizedTags = this._getAuthorizedTags(); | |
83 | } catch (error) { | |
84 | logger.error(this._basicFormatLog() + ' Authorization file monitoring error: ' + error); | |
85 | } | |
86 | }); | |
87 | } | |
88 | ||
89 | _startStationTemplateFileMonitoring() { | |
90 | // eslint-disable-next-line no-unused-vars | |
91 | fs.watchFile(this._stationTemplateFile, (current, previous) => { | |
92 | try { | |
93 | logger.debug(this._basicFormatLog() + ' Template file ' + this._stationTemplateFile + ' have changed, reload'); | |
94 | // Initialize | |
95 | this._initialize(); | |
96 | } catch (error) { | |
97 | logger.error(this._basicFormatLog() + ' Charging station template file monitoring error: ' + error); | |
98 | } | |
99 | }); | |
100 | } | |
101 | ||
102 | _getSupervisionURL() { | |
103 | const supervisionUrls = Utils.cloneJSonDocument(this._stationInfo.supervisionURL ? this._stationInfo.supervisionURL : Configuration.getSupervisionURLs()); | |
7dde0b73 JB |
104 | let indexUrl = 0; |
105 | if (Array.isArray(supervisionUrls)) { | |
2e6f5966 JB |
106 | if (Configuration.getDistributeStationToTenantEqually()) { |
107 | indexUrl = this._index % supervisionUrls.length; | |
7dde0b73 JB |
108 | } else { |
109 | // Get a random url | |
110 | indexUrl = Math.floor(Math.random() * supervisionUrls.length); | |
111 | } | |
112 | return supervisionUrls[indexUrl]; | |
113 | } | |
114 | return supervisionUrls; | |
115 | } | |
116 | ||
2e6f5966 JB |
117 | _getStationName(stationTemplate) { |
118 | return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + this._index).substr(('000000000' + this._index).length - 4); | |
7dde0b73 JB |
119 | } |
120 | ||
121 | _getAuthorizeRemoteTxRequests() { | |
122 | const authorizeRemoteTxRequests = this._configuration.configurationKey.find((configElement) => configElement.key === 'AuthorizeRemoteTxRequests'); | |
a6e68f34 | 123 | return authorizeRemoteTxRequests ? Utils.convertToBoolean(authorizeRemoteTxRequests.value) : false; |
7dde0b73 JB |
124 | } |
125 | ||
def3d48e JB |
126 | _getLocalAuthListEnabled() { |
127 | const localAuthListEnabled = this._configuration.configurationKey.find((configElement) => configElement.key === 'LocalAuthListEnabled'); | |
128 | return localAuthListEnabled ? Utils.convertToBoolean(localAuthListEnabled.value) : false; | |
129 | } | |
130 | ||
2e6f5966 JB |
131 | _buildStationInfo() { |
132 | let stationTemplateFromFile; | |
133 | try { | |
134 | // Load template file | |
135 | const fileDescriptor = fs.openSync(this._stationTemplateFile, 'r'); | |
136 | stationTemplateFromFile = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
137 | fs.closeSync(fileDescriptor); | |
138 | } catch (error) { | |
139 | logger.error(this._basicFormatLog() + ' Template file loading error: ' + error); | |
140 | } | |
141 | const stationTemplate = stationTemplateFromFile || {}; | |
142 | if (Array.isArray(stationTemplateFromFile.power)) { | |
143 | stationTemplate.maxPower = stationTemplateFromFile.power[Math.floor(Math.random() * stationTemplateFromFile.power.length)]; | |
7dde0b73 | 144 | } else { |
2e6f5966 | 145 | stationTemplate.maxPower = stationTemplateFromFile.power; |
7dde0b73 | 146 | } |
2e6f5966 | 147 | stationTemplate.name = this._getStationName(stationTemplateFromFile); |
7dde0b73 JB |
148 | return stationTemplate; |
149 | } | |
150 | ||
151 | async start() { | |
152 | logger.info(this._basicFormatLog() + ' Will communicate with ' + this._supervisionUrl); | |
2e6f5966 JB |
153 | // Monitor authorization file |
154 | this._startAuthorizationFileMonitoring(); | |
155 | // Monitor station template file | |
156 | this._startStationTemplateFileMonitoring(); | |
7dde0b73 JB |
157 | this._url = this._supervisionUrl + '/' + this._stationInfo.name; |
158 | this._wsConnection = new WebSocket(this._url, 'ocpp1.6'); | |
7dde0b73 JB |
159 | // Handle Socket incoming messages |
160 | this._wsConnection.on('message', this.onMessage.bind(this)); | |
161 | // Handle Socket error | |
162 | this._wsConnection.on('error', this.onError.bind(this)); | |
163 | // Handle Socket close | |
164 | this._wsConnection.on('close', this.onClose.bind(this)); | |
165 | // Handle Socket opening connection | |
166 | this._wsConnection.on('open', this.onOpen.bind(this)); | |
167 | // Handle Socket ping | |
168 | this._wsConnection.on('ping', this.onPing.bind(this)); | |
169 | } | |
170 | ||
171 | onOpen() { | |
172 | logger.info(`${this._basicFormatLog()} Is connected to server through ${this._url}`); | |
173 | if (this._isSocketRestart) { | |
174 | this.basicStartMessageSequence(); | |
175 | if (this._messageQueue.length > 0) { | |
176 | this._messageQueue.forEach((message) => { | |
177 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
178 | this._wsConnection.send(message); | |
179 | } | |
180 | }); | |
181 | } | |
182 | } else { | |
84393381 | 183 | // At first start, send BootNotification |
7dde0b73 | 184 | try { |
f7869514 | 185 | this.sendMessage(uuid(), this._bootNotificationMessage, Constants.OCPP_JSON_CALL_MESSAGE, 'BootNotification'); |
7dde0b73 JB |
186 | } catch (error) { |
187 | logger.error(this._basicFormatLog() + ' Send boot notification error: ' + error); | |
188 | } | |
189 | } | |
190 | this._autoReconnectRetryCount = 0; | |
191 | this._isSocketRestart = false; | |
192 | } | |
193 | ||
194 | onError(error) { | |
195 | switch (error) { | |
196 | case 'ECONNREFUSED': | |
197 | this._isSocketRestart = true; | |
198 | this._reconnect(error); | |
199 | break; | |
200 | default: | |
201 | logger.error(this._basicFormatLog() + ' Socket error: ' + error); | |
202 | break; | |
203 | } | |
204 | } | |
205 | ||
206 | onClose(error) { | |
207 | switch (error) { | |
208 | case 1000: // Normal close | |
209 | case 1005: | |
210 | logger.info(this._basicFormatLog() + ' Socket normally closed ' + error); | |
211 | this._autoReconnectRetryCount = 0; | |
212 | break; | |
213 | default: // Abnormal close | |
214 | this._isSocketRestart = true; | |
215 | this._reconnect(error); | |
216 | break; | |
217 | } | |
218 | } | |
219 | ||
220 | onPing() { | |
221 | logger.info(this._basicFormatLog() + ' Has received a WS ping (rfc6455) from the server'); | |
222 | } | |
223 | ||
224 | async onMessage(message) { | |
2d8cee5a | 225 | let [messageType, messageId, commandName, commandPayload, errorDetails] = [0, '', Constants.ENTITY_CHARGING_STATION, '', '']; |
7dde0b73 | 226 | try { |
2d8cee5a JB |
227 | // Parse the message |
228 | [messageType, messageId, commandName, commandPayload, errorDetails] = JSON.parse(message); | |
229 | ||
7dde0b73 JB |
230 | // Check the Type of message |
231 | switch (messageType) { | |
232 | // Incoming Message | |
f7869514 | 233 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
234 | // Process the call |
235 | this._statistics.addMessage(commandName); | |
236 | await this.handleRequest(messageId, commandName, commandPayload); | |
237 | break; | |
238 | // Outcome Message | |
f7869514 | 239 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
240 | // Respond |
241 | // eslint-disable-next-line no-case-declarations | |
242 | let responseCallback; let requestPayload; | |
243 | if (Utils.isIterable(this._requests[messageId])) { | |
244 | [responseCallback, , requestPayload] = this._requests[messageId]; | |
245 | } else { | |
246 | throw new Error(`Response request for unknown message id ${messageId} is not iterable`); | |
247 | } | |
248 | if (!responseCallback) { | |
249 | // Error | |
250 | throw new Error(`Response for unknown message id ${messageId}`); | |
251 | } | |
252 | delete this._requests[messageId]; | |
253 | // this._statistics.addMessage(commandName) | |
254 | responseCallback(commandName, requestPayload); | |
255 | break; | |
256 | // Error Message | |
f7869514 | 257 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 JB |
258 | if (!this._requests[messageId]) { |
259 | // Error | |
260 | throw new Error(`Error for unknown message id ${messageId}`); | |
261 | } | |
262 | // eslint-disable-next-line no-case-declarations | |
263 | let rejectCallback; | |
264 | if (Utils.isIterable(this._requests[messageId])) { | |
265 | [, rejectCallback] = this._requests[messageId]; | |
266 | } else { | |
267 | throw new Error(`Error request for unknown message id ${messageId} is not iterable`); | |
268 | } | |
269 | delete this._requests[messageId]; | |
270 | rejectCallback(new OCPPError(commandName, commandPayload, errorDetails)); | |
271 | break; | |
272 | // Error | |
273 | default: | |
274 | throw new Error(`Wrong message type ${messageType}`); | |
275 | } | |
276 | } catch (error) { | |
277 | // Log | |
278 | logger.error('%s Incoming message %j processing error %s on request content %s', this._basicFormatLog(), message, error, this._requests[messageId]); | |
279 | // Send error | |
280 | // await this.sendError(messageId, error); | |
281 | } | |
282 | } | |
283 | ||
284 | _reconnect(error) { | |
285 | logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error); | |
286 | // Stop heartbeat interval | |
287 | if (this._heartbeatSetInterval) { | |
288 | clearInterval(this._heartbeatSetInterval); | |
289 | this._heartbeatSetInterval = null; | |
290 | } | |
291 | // Stop the ATG | |
292 | if (this._stationInfo.AutomaticTransactionGenerator.enable && this._automaticTransactionGeneration && | |
293 | !this._automaticTransactionGeneration._timeToStop) { | |
294 | this._automaticTransactionGeneration.stop(); | |
295 | } | |
296 | if (this._autoReconnectTimeout !== 0 && | |
297 | (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) { | |
298 | logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`); | |
299 | this._autoReconnectRetryCount++; | |
300 | setTimeout(() => { | |
301 | logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount); | |
302 | this.start(); | |
303 | }, this._autoReconnectTimeout); | |
304 | } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) { | |
305 | logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`); | |
306 | } | |
307 | } | |
308 | ||
f7869514 | 309 | send(command, messageType = Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 JB |
310 | // Send Message |
311 | return this.sendMessage(uuid(), command, messageType); | |
312 | } | |
313 | ||
314 | sendError(messageId, err) { | |
315 | // Check exception: only OCPP error are accepted | |
f7869514 | 316 | const error = (err instanceof OCPPError ? err : new OCPPError(Constants.OCPP_ERROR_INTERNAL_ERROR, err.message)); |
7dde0b73 | 317 | // Send error |
f7869514 | 318 | return this.sendMessage(messageId, error, Constants.OCPP_JSON_CALL_ERROR_MESSAGE); |
7dde0b73 JB |
319 | } |
320 | ||
f7869514 | 321 | sendMessage(messageId, command, messageType = Constants.OCPP_JSON_CALL_RESULT_MESSAGE, commandName = '') { |
7dde0b73 JB |
322 | // Send a message through wsConnection |
323 | const self = this; | |
324 | // Create a promise | |
325 | return new Promise((resolve, reject) => { | |
326 | let messageToSend; | |
327 | // Type of message | |
328 | switch (messageType) { | |
329 | // Request | |
f7869514 | 330 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
331 | this._statistics.addMessage(commandName); |
332 | // Build request | |
333 | this._requests[messageId] = [responseCallback, rejectCallback, command]; | |
334 | messageToSend = JSON.stringify([messageType, messageId, commandName, command]); | |
335 | break; | |
336 | // Response | |
f7869514 | 337 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
338 | // Build response |
339 | messageToSend = JSON.stringify([messageType, messageId, command]); | |
340 | break; | |
341 | // Error Message | |
f7869514 | 342 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 | 343 | // Build Message |
894a1780 JB |
344 | this._statistics.addMessage(`Error ${command.code}`); |
345 | messageToSend = JSON.stringify([messageType, messageId, command.code ? command.code : Constants.OCPP_ERROR_GENERIC_ERROR, command.message ? command.message : '', command.details ? command.details : {}]); | |
7dde0b73 JB |
346 | break; |
347 | } | |
2e6f5966 | 348 | // Check if wsConnection is ready |
7dde0b73 JB |
349 | if (this._wsConnection.readyState === WebSocket.OPEN) { |
350 | // Yes: Send Message | |
351 | this._wsConnection.send(messageToSend); | |
352 | } else { | |
353 | // Buffer message until connection is back | |
354 | this._messageQueue.push(messageToSend); | |
355 | } | |
356 | // Request? | |
f7869514 | 357 | if (messageType !== Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 JB |
358 | // Yes: send Ok |
359 | resolve(); | |
360 | } else if (this._wsConnection.readyState === WebSocket.OPEN) { | |
361 | // Send timeout in case connection is open otherwise wait for ever | |
362 | // FIXME: Handle message on timeout | |
f7869514 | 363 | setTimeout(() => rejectCallback(`Timeout for message ${messageId}`), Constants.OCPP_SOCKET_TIMEOUT); |
7dde0b73 JB |
364 | } |
365 | ||
366 | // Function that will receive the request's response | |
367 | function responseCallback(payload, requestPayload) { | |
368 | self._statistics.addMessage(commandName, true); | |
369 | const responseCallbackFn = 'handleResponse' + commandName; | |
370 | if (typeof self[responseCallbackFn] === 'function') { | |
371 | self[responseCallbackFn](payload, requestPayload, self); | |
372 | } else { | |
2e6f5966 | 373 | logger.debug(self._basicFormatLog() + ' Trying to call an undefined callback function: ' + responseCallbackFn); |
7dde0b73 JB |
374 | } |
375 | // Send the response | |
376 | resolve(payload); | |
377 | } | |
378 | ||
379 | // Function that will receive the request's rejection | |
380 | function rejectCallback(reason) { | |
381 | // Build Exception | |
382 | // eslint-disable-next-line no-empty-function | |
383 | self._requests[messageId] = [() => { }, () => { }, '']; // Properly format the request | |
384 | const error = reason instanceof OCPPError ? reason : new Error(reason); | |
385 | // Send error | |
386 | reject(error); | |
387 | } | |
388 | }); | |
389 | } | |
390 | ||
391 | handleResponseBootNotification(payload) { | |
392 | if (payload.status === 'Accepted') { | |
393 | this._heartbeatInterval = payload.interval * 1000; | |
394 | this.basicStartMessageSequence(); | |
2e6f5966 JB |
395 | } else { |
396 | logger.info(this._basicFormatLog() + ' Boot Notification rejected'); | |
7dde0b73 JB |
397 | } |
398 | } | |
399 | ||
400 | async basicStartMessageSequence() { | |
401 | this._startHeartbeat(this); | |
2e6f5966 JB |
402 | // build connectors |
403 | if (!this._connectors) { | |
7dde0b73 | 404 | this._connectors = {}; |
2e6f5966 | 405 | const connectorsConfig = Utils.cloneJSonDocument(this._stationInfo.Connectors); |
7dde0b73 JB |
406 | // determine number of customized connectors |
407 | let lastConnector; | |
408 | for (lastConnector in connectorsConfig) { | |
2e6f5966 JB |
409 | // add connector 0, OCPP specification violation that for example KEBA have |
410 | if (Utils.convertToInt(lastConnector) === 0 && this._stationInfo.useConnectorId0) { | |
7dde0b73 JB |
411 | this._connectors[lastConnector] = connectorsConfig[lastConnector]; |
412 | } | |
413 | } | |
414 | let maxConnectors = 0; | |
415 | if (Array.isArray(this._stationInfo.numberOfConnectors)) { | |
416 | // generate some connectors | |
417 | maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length]; | |
418 | } else { | |
419 | maxConnectors = this._stationInfo.numberOfConnectors; | |
420 | } | |
421 | // generate all connectors | |
422 | for (let index = 1; index <= maxConnectors; index++) { | |
2e6f5966 | 423 | const randConnectorID = this._stationInfo.randomConnectors ? Utils.getRandomInt(maxConnectors, 1) : index; |
7dde0b73 JB |
424 | this._connectors[index] = connectorsConfig[randConnectorID]; |
425 | } | |
426 | } | |
427 | ||
428 | for (const connector in this._connectors) { | |
429 | if (!this._connectors[connector].transactionStarted) { | |
430 | if (this._connectors[connector].bootStatus) { | |
2e6f5966 | 431 | setTimeout(() => this.sendStatusNotification(connector, this._connectors[connector].bootStatus), Constants.STATUS_NOTIFICATION_TIMEOUT); |
7dde0b73 | 432 | } else { |
2e6f5966 | 433 | setTimeout(() => this.sendStatusNotification(connector, 'Available'), Constants.STATUS_NOTIFICATION_TIMEOUT); |
7dde0b73 JB |
434 | } |
435 | } else { | |
2e6f5966 | 436 | setTimeout(() => this.sendStatusNotification(connector, 'Charging'), Constants.STATUS_NOTIFICATION_TIMEOUT); |
7dde0b73 JB |
437 | } |
438 | } | |
439 | ||
440 | if (this._stationInfo.AutomaticTransactionGenerator.enable) { | |
441 | if (!this._automaticTransactionGeneration) { | |
442 | this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this); | |
443 | } | |
444 | this._automaticTransactionGeneration.start(); | |
445 | } | |
446 | this._statistics.start(); | |
447 | } | |
448 | ||
449 | handleResponseStartTransaction(payload, requestPayload) { | |
a6e68f34 | 450 | // Reset connector transaction related attributes |
84393381 JB |
451 | this._connectors[requestPayload.connectorId].transactionStarted = false; |
452 | this._connectors[requestPayload.connectorId].idTag = requestPayload.idTag; | |
453 | ||
7dde0b73 JB |
454 | if (payload.idTagInfo.status === 'Accepted') { |
455 | for (const connector in this._connectors) { | |
def3d48e | 456 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
457 | this._connectors[connector].transactionStarted = true; |
458 | this._connectors[connector].transactionId = payload.transactionId; | |
459 | this._connectors[connector].lastConsumptionValue = 0; | |
460 | this._connectors[connector].lastSoC = 0; | |
84393381 | 461 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connector].transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId + ' with idTag ' + requestPayload.idTag); |
7dde0b73 | 462 | this.sendStatusNotification(requestPayload.connectorId, 'Charging'); |
a6e68f34 | 463 | const configuredMeterValueSampleInterval = this._configuration.configurationKey.find((value) => value.key === 'MeterValueSampleInterval'); |
7dde0b73 | 464 | this.startMeterValues(requestPayload.connectorId, |
a6e68f34 | 465 | (configuredMeterValueSampleInterval ? configuredMeterValueSampleInterval.value * 1000 : 60000), |
7dde0b73 JB |
466 | this); |
467 | } | |
468 | } | |
469 | } else { | |
470 | logger.error(this._basicFormatLog() + ' Starting transaction id ' + payload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status + ', idTag ' + requestPayload.idTag); | |
471 | for (const connector in this._connectors) { | |
def3d48e | 472 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
473 | this._resetTransactionOnConnector(connector); |
474 | } | |
475 | } | |
476 | this.sendStatusNotification(requestPayload.connectorId, 'Available'); | |
477 | } | |
478 | } | |
479 | ||
480 | async sendStatusNotification(connectorId, status, errorCode = 'NoError') { | |
481 | try { | |
482 | const payload = { | |
483 | connectorId, | |
484 | errorCode, | |
485 | status, | |
486 | }; | |
f7869514 | 487 | await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StatusNotification'); |
7dde0b73 JB |
488 | } catch (error) { |
489 | logger.error(this._basicFormatLog() + ' Send status error: ' + error); | |
490 | } | |
491 | } | |
492 | ||
493 | // eslint-disable-next-line class-methods-use-this | |
494 | async _startHeartbeat(self) { | |
495 | if (self._heartbeatInterval && !self._heartbeatSetInterval) { | |
496 | logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms'); | |
497 | self._heartbeatSetInterval = setInterval(() => { | |
498 | try { | |
499 | const payload = { | |
500 | currentTime: new Date().toISOString(), | |
501 | }; | |
f7869514 | 502 | self.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'Heartbeat'); |
7dde0b73 JB |
503 | } catch (error) { |
504 | logger.error(self._basicFormatLog() + ' Send heartbeat error: ' + error); | |
505 | } | |
506 | }, self._heartbeatInterval); | |
507 | } else { | |
508 | logger.error(self._basicFormatLog() + ' Heartbeat interval undefined, not starting the heartbeat'); | |
509 | } | |
510 | } | |
511 | ||
512 | async handleRequest(messageId, commandName, commandPayload) { | |
513 | let result; | |
514 | this._statistics.addMessage(commandName, true); | |
515 | // Call | |
516 | if (typeof this['handle' + commandName] === 'function') { | |
517 | try { | |
518 | // Call the method | |
519 | result = await this['handle' + commandName](commandPayload); | |
520 | } catch (error) { | |
521 | // Log | |
522 | logger.error(this._basicFormatLog() + ' Handle request error: ' + error); | |
523 | // Send back response to inform back end | |
524 | await this.sendError(messageId, error); | |
525 | } | |
526 | } else { | |
84393381 | 527 | // Throw exception |
f7869514 | 528 | await this.sendError(messageId, new OCPPError(Constants.OCPP_ERROR_NOT_IMPLEMENTED, 'Not implemented', {})); |
7dde0b73 JB |
529 | throw new Error(`${commandName} is not implemented ${JSON.stringify(commandPayload, null, ' ')}`); |
530 | } | |
84393381 | 531 | // Send response |
f7869514 | 532 | await this.sendMessage(messageId, result, Constants.OCPP_JSON_CALL_RESULT_MESSAGE); |
7dde0b73 JB |
533 | } |
534 | ||
535 | async handleGetConfiguration() { | |
536 | return this._configuration; | |
537 | } | |
538 | ||
539 | async handleChangeConfiguration(commandPayload) { | |
540 | const keyToChange = this._configuration.configurationKey.find((element) => element.key === commandPayload.key); | |
a6e68f34 JB |
541 | if (keyToChange && !Utils.convertToBoolean(keyToChange.readonly)) { |
542 | const keyIndex = this._configuration.configurationKey.indexOf(keyToChange); | |
543 | this._configuration.configurationKey[keyIndex].value = commandPayload.value; | |
dcab13bd | 544 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 | 545 | } |
dcab13bd | 546 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 JB |
547 | } |
548 | ||
549 | async handleRemoteStartTransaction(commandPayload) { | |
550 | const transactionConnectorID = (commandPayload.connectorId ? commandPayload.connectorId : '1'); | |
2e6f5966 | 551 | if (this.hasAuthorizedTags() && this._getLocalAuthListEnabled() && this._getAuthorizeRemoteTxRequests()) { |
dcab13bd | 552 | // Check if authorized |
2e6f5966 | 553 | if (this._authorizedTags.find((value) => value === commandPayload.idTag)) { |
7dde0b73 | 554 | // Authorization successful start transaction |
2e6f5966 JB |
555 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), Constants.START_TRANSACTION_TIMEOUT); |
556 | logger.debug(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' with idTag ' + commandPayload.idTag); | |
dcab13bd | 557 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 | 558 | } |
84393381 | 559 | logger.error(this._basicFormatLog() + ' Remote starting transaction REJECTED with status ' + commandPayload.idTagInfo.status + ', idTag ' + commandPayload.idTag); |
dcab13bd | 560 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 | 561 | } |
dcab13bd | 562 | // No local authorization check required => start transaction |
2e6f5966 JB |
563 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), Constants.START_TRANSACTION_TIMEOUT); |
564 | logger.debug(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' with idTag ' + commandPayload.idTag); | |
dcab13bd | 565 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
566 | } |
567 | ||
568 | async sendStartTransaction(connectorID, idTag) { | |
569 | try { | |
570 | const payload = { | |
571 | connectorId: connectorID, | |
572 | idTag, | |
573 | meterStart: 0, | |
574 | timestamp: new Date().toISOString(), | |
575 | }; | |
f7869514 | 576 | return await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StartTransaction'); |
7dde0b73 JB |
577 | } catch (error) { |
578 | logger.error(this._basicFormatLog() + ' Send start transaction error: ' + error); | |
579 | this._resetTransactionOnConnector(connectorID); | |
580 | throw error; | |
581 | } | |
582 | } | |
583 | ||
584 | async sendStopTransaction(transactionId, connectorID) { | |
585 | try { | |
586 | const payload = { | |
587 | transactionId, | |
588 | meterStop: 0, | |
589 | timestamp: new Date().toISOString(), | |
590 | }; | |
f7869514 | 591 | await this.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StopTransaction'); |
7dde0b73 JB |
592 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connectorID].transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + connectorID); |
593 | this.sendStatusNotification(connectorID, 'Available'); | |
594 | } catch (error) { | |
595 | logger.error(this._basicFormatLog() + ' Send stop transaction error: ' + error); | |
596 | throw error; | |
597 | } finally { | |
598 | this._resetTransactionOnConnector(connectorID); | |
599 | } | |
600 | } | |
601 | ||
602 | _resetTransactionOnConnector(connectorID) { | |
603 | this._connectors[connectorID].transactionStarted = false; | |
604 | this._connectors[connectorID].transactionId = null; | |
605 | this._connectors[connectorID].lastConsumptionValue = -1; | |
606 | this._connectors[connectorID].lastSoC = -1; | |
607 | if (this._connectors[connectorID].transactionInterval) { | |
608 | clearInterval(this._connectors[connectorID].transactionInterval); | |
609 | } | |
610 | } | |
611 | ||
612 | // eslint-disable-next-line class-methods-use-this | |
613 | async sendMeterValues(connectorID, interval, self) { | |
614 | try { | |
615 | const sampledValueLcl = { | |
616 | timestamp: new Date().toISOString(), | |
617 | }; | |
2e6f5966 | 618 | const meterValuesClone = Utils.cloneJSonDocument(self._getConnector(connectorID).MeterValues); |
7dde0b73 JB |
619 | if (Array.isArray(meterValuesClone)) { |
620 | sampledValueLcl.sampledValue = meterValuesClone; | |
621 | } else { | |
622 | sampledValueLcl.sampledValue = [meterValuesClone]; | |
623 | } | |
624 | for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) { | |
625 | if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') { | |
626 | sampledValueLcl.sampledValue[index].value = Math.floor(Math.random() * 100) + 1; | |
627 | if (sampledValueLcl.sampledValue[index].value > 100) { | |
628 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
629 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
630 | ' value: ' + sampledValueLcl.sampledValue[index].value); | |
631 | } | |
632 | } else { | |
633 | // Persist previous value in connector | |
634 | const connector = self._connectors[connectorID]; | |
635 | let consumption; | |
a6e68f34 | 636 | consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval, 4); |
7dde0b73 JB |
637 | if (connector && connector.lastConsumptionValue >= 0) { |
638 | connector.lastConsumptionValue += consumption; | |
639 | } else { | |
640 | connector.lastConsumptionValue = 0; | |
641 | } | |
642 | consumption = Math.round(connector.lastConsumptionValue * 3600 / interval); | |
643 | logger.info(self._basicFormatLog() + ' ConnectorID ' + connectorID + ' transaction ' + connector.transactionId + ' value ' + connector.lastConsumptionValue); | |
644 | sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue; | |
645 | if (sampledValueLcl.sampledValue[index].value > (self._stationInfo.maxPower * 3600 / interval) || sampledValueLcl.sampledValue[index].value < 500) { | |
646 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
647 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
648 | ' value: ' + sampledValueLcl.sampledValue[index].value + '/' + (self._stationInfo.maxPower * 3600 / interval)); | |
649 | } | |
650 | } | |
651 | } | |
652 | ||
653 | const payload = { | |
654 | connectorId: connectorID, | |
655 | transactionId: self._connectors[connectorID].transactionId, | |
656 | meterValue: [sampledValueLcl], | |
657 | }; | |
f7869514 | 658 | await self.sendMessage(uuid(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'MeterValues'); |
7dde0b73 JB |
659 | } catch (error) { |
660 | logger.error(self._basicFormatLog() + ' Send meter values error: ' + error); | |
661 | } | |
662 | } | |
663 | ||
664 | async startMeterValues(connectorID, interval, self) { | |
84393381 | 665 | if (!this._connectors[connectorID].transactionStarted) { |
2e6f5966 | 666 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction started`); |
84393381 JB |
667 | } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) { |
668 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction id`); | |
669 | } | |
7dde0b73 JB |
670 | this._connectors[connectorID].transactionInterval = setInterval(async () => { |
671 | const sendMeterValues = performance.timerify(this.sendMeterValues); | |
672 | this._performanceObserver.observe({ | |
673 | entryTypes: ['function'], | |
674 | }); | |
675 | await sendMeterValues(connectorID, interval, self); | |
676 | }, interval); | |
677 | } | |
678 | ||
679 | async handleRemoteStopTransaction(commandPayload) { | |
680 | for (const connector in this._connectors) { | |
681 | if (this._connectors[connector].transactionId === commandPayload.transactionId) { | |
682 | this.sendStopTransaction(commandPayload.transactionId, connector); | |
683 | } | |
684 | } | |
dcab13bd | 685 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
686 | } |
687 | ||
2e6f5966 JB |
688 | hasAuthorizedTags() { |
689 | return Array.isArray(this._authorizedTags) && this._authorizedTags.length > 0; | |
7dde0b73 JB |
690 | } |
691 | ||
692 | getRandomTagId() { | |
2e6f5966 JB |
693 | const index = Math.round(Math.floor(Math.random() * this._authorizedTags.length - 1)); |
694 | return this._authorizedTags[index]; | |
7dde0b73 JB |
695 | } |
696 | ||
697 | _getConnector(number) { | |
698 | return this._stationInfo.Connectors[number]; | |
699 | } | |
700 | } | |
701 | ||
702 | module.exports = ChargingStation; |