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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'); | |
7dde0b73 JB |
7 | const AutomaticTransactionGenerator = require('./AutomaticTransactionGenerator'); |
8 | const Statistics = require('../utils/Statistics'); | |
9 | const fs = require('fs'); | |
10 | const {performance, PerformanceObserver} = require('perf_hooks'); | |
11 | ||
12 | class ChargingStation { | |
2e6f5966 JB |
13 | constructor(index, stationTemplateFile) { |
14 | this._index = index; | |
15 | this._stationTemplateFile = stationTemplateFile; | |
16 | this._initialize(); | |
17 | ||
7dde0b73 JB |
18 | this._autoReconnectRetryCount = 0; |
19 | this._autoReconnectMaxRetries = Configuration.getAutoReconnectMaxRetries(); // -1 for unlimited | |
20 | this._autoReconnectTimeout = Configuration.getAutoReconnectTimeout() * 1000; // ms, zero for disabling | |
2e6f5966 JB |
21 | |
22 | this._requests = {}; | |
23 | this._messageQueue = []; | |
24 | ||
7dde0b73 | 25 | this._isSocketRestart = false; |
2e6f5966 JB |
26 | } |
27 | ||
28 | _initialize() { | |
29 | this._stationInfo = this._buildStationInfo(); | |
30 | this._bootNotificationMessage = { | |
31 | chargePointModel: this._stationInfo.chargePointModel, | |
32 | chargePointVendor: this._stationInfo.chargePointVendor, | |
33 | }; | |
34 | this._configuration = this._getConfiguration(); | |
35 | this._authorizedTags = this._getAuthorizedTags(); | |
36 | this._supervisionUrl = this._getSupervisionURL(); | |
7dde0b73 JB |
37 | this._statistics = new Statistics(this._stationInfo.name); |
38 | this._performanceObserver = new PerformanceObserver((list) => { | |
39 | const entry = list.getEntries()[0]; | |
40 | this._statistics.logPerformance(entry, 'ChargingStation'); | |
41 | this._performanceObserver.disconnect(); | |
42 | }); | |
7dde0b73 JB |
43 | } |
44 | ||
45 | _basicFormatLog() { | |
46 | return Utils.basicFormatLog(` ${this._stationInfo.name}:`); | |
47 | } | |
48 | ||
2e6f5966 JB |
49 | _getConfiguration() { |
50 | return this._stationInfo.Configuration ? this._stationInfo.Configuration : {}; | |
7dde0b73 JB |
51 | } |
52 | ||
2e6f5966 JB |
53 | _getAuthorizationFile() { |
54 | return this._stationInfo.authorizationFile ? this._stationInfo.authorizationFile : ''; | |
7dde0b73 JB |
55 | } |
56 | ||
2e6f5966 JB |
57 | _getAuthorizedTags() { |
58 | let authorizedTags = []; | |
59 | const authorizationFile = this._getAuthorizationFile(); | |
60 | if (authorizationFile) { | |
61 | try { | |
62 | // Load authorization file | |
63 | const fileDescriptor = fs.openSync(authorizationFile, 'r'); | |
64 | authorizedTags = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
65 | fs.closeSync(fileDescriptor); | |
66 | } catch (error) { | |
67 | logger.error(this._basicFormatLog() + ' Authorization file loading error: ' + error); | |
68 | } | |
69 | } else { | |
70 | logger.info(this._basicFormatLog() + ' No authorization file given in template file ' + this._stationTemplateFile); | |
71 | } | |
72 | return authorizedTags; | |
73 | } | |
74 | ||
75 | _startAuthorizationFileMonitoring() { | |
76 | // eslint-disable-next-line no-unused-vars | |
77 | fs.watchFile(this._getAuthorizationFile(), (current, previous) => { | |
78 | try { | |
79 | logger.debug(this._basicFormatLog() + ' Authorization file ' + this._getAuthorizationFile() + ' have changed, reload'); | |
80 | // Initialize _authorizedTags | |
81 | this._authorizedTags = this._getAuthorizedTags(); | |
82 | } catch (error) { | |
83 | logger.error(this._basicFormatLog() + ' Authorization file monitoring error: ' + error); | |
84 | } | |
85 | }); | |
86 | } | |
87 | ||
88 | _startStationTemplateFileMonitoring() { | |
89 | // eslint-disable-next-line no-unused-vars | |
90 | fs.watchFile(this._stationTemplateFile, (current, previous) => { | |
91 | try { | |
92 | logger.debug(this._basicFormatLog() + ' Template file ' + this._stationTemplateFile + ' have changed, reload'); | |
93 | // Initialize | |
94 | this._initialize(); | |
95 | } catch (error) { | |
96 | logger.error(this._basicFormatLog() + ' Charging station template file monitoring error: ' + error); | |
97 | } | |
98 | }); | |
99 | } | |
100 | ||
101 | _getSupervisionURL() { | |
102 | const supervisionUrls = Utils.cloneJSonDocument(this._stationInfo.supervisionURL ? this._stationInfo.supervisionURL : Configuration.getSupervisionURLs()); | |
7dde0b73 JB |
103 | let indexUrl = 0; |
104 | if (Array.isArray(supervisionUrls)) { | |
2e6f5966 JB |
105 | if (Configuration.getDistributeStationToTenantEqually()) { |
106 | indexUrl = this._index % supervisionUrls.length; | |
7dde0b73 JB |
107 | } else { |
108 | // Get a random url | |
109 | indexUrl = Math.floor(Math.random() * supervisionUrls.length); | |
110 | } | |
111 | return supervisionUrls[indexUrl]; | |
112 | } | |
113 | return supervisionUrls; | |
114 | } | |
115 | ||
2e6f5966 JB |
116 | _getStationName(stationTemplate) { |
117 | return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + this._index).substr(('000000000' + this._index).length - 4); | |
7dde0b73 JB |
118 | } |
119 | ||
120 | _getAuthorizeRemoteTxRequests() { | |
121 | const authorizeRemoteTxRequests = this._configuration.configurationKey.find((configElement) => configElement.key === 'AuthorizeRemoteTxRequests'); | |
a6e68f34 | 122 | return authorizeRemoteTxRequests ? Utils.convertToBoolean(authorizeRemoteTxRequests.value) : false; |
7dde0b73 JB |
123 | } |
124 | ||
def3d48e JB |
125 | _getLocalAuthListEnabled() { |
126 | const localAuthListEnabled = this._configuration.configurationKey.find((configElement) => configElement.key === 'LocalAuthListEnabled'); | |
127 | return localAuthListEnabled ? Utils.convertToBoolean(localAuthListEnabled.value) : false; | |
128 | } | |
129 | ||
2e6f5966 JB |
130 | _buildStationInfo() { |
131 | let stationTemplateFromFile; | |
132 | try { | |
133 | // Load template file | |
134 | const fileDescriptor = fs.openSync(this._stationTemplateFile, 'r'); | |
135 | stationTemplateFromFile = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8')); | |
136 | fs.closeSync(fileDescriptor); | |
137 | } catch (error) { | |
138 | logger.error(this._basicFormatLog() + ' Template file loading error: ' + error); | |
139 | } | |
140 | const stationTemplate = stationTemplateFromFile || {}; | |
141 | if (Array.isArray(stationTemplateFromFile.power)) { | |
142 | stationTemplate.maxPower = stationTemplateFromFile.power[Math.floor(Math.random() * stationTemplateFromFile.power.length)]; | |
7dde0b73 | 143 | } else { |
2e6f5966 | 144 | stationTemplate.maxPower = stationTemplateFromFile.power; |
7dde0b73 | 145 | } |
2e6f5966 | 146 | stationTemplate.name = this._getStationName(stationTemplateFromFile); |
7dde0b73 JB |
147 | return stationTemplate; |
148 | } | |
149 | ||
150 | async start() { | |
151 | logger.info(this._basicFormatLog() + ' Will communicate with ' + this._supervisionUrl); | |
2e6f5966 JB |
152 | // Monitor authorization file |
153 | this._startAuthorizationFileMonitoring(); | |
154 | // Monitor station template file | |
155 | this._startStationTemplateFileMonitoring(); | |
7dde0b73 JB |
156 | this._url = this._supervisionUrl + '/' + this._stationInfo.name; |
157 | this._wsConnection = new WebSocket(this._url, 'ocpp1.6'); | |
7dde0b73 JB |
158 | // Handle Socket incoming messages |
159 | this._wsConnection.on('message', this.onMessage.bind(this)); | |
160 | // Handle Socket error | |
161 | this._wsConnection.on('error', this.onError.bind(this)); | |
162 | // Handle Socket close | |
163 | this._wsConnection.on('close', this.onClose.bind(this)); | |
164 | // Handle Socket opening connection | |
165 | this._wsConnection.on('open', this.onOpen.bind(this)); | |
166 | // Handle Socket ping | |
167 | this._wsConnection.on('ping', this.onPing.bind(this)); | |
168 | } | |
169 | ||
170 | onOpen() { | |
171 | logger.info(`${this._basicFormatLog()} Is connected to server through ${this._url}`); | |
172 | if (this._isSocketRestart) { | |
027b409a | 173 | this._basicStartMessageSequence(); |
7dde0b73 JB |
174 | if (this._messageQueue.length > 0) { |
175 | this._messageQueue.forEach((message) => { | |
176 | if (this._wsConnection.readyState === WebSocket.OPEN) { | |
177 | this._wsConnection.send(message); | |
178 | } | |
179 | }); | |
180 | } | |
181 | } else { | |
84393381 | 182 | // At first start, send BootNotification |
7dde0b73 | 183 | try { |
027b409a | 184 | this.sendMessage(Utils.generateUUID(), this._bootNotificationMessage, Constants.OCPP_JSON_CALL_MESSAGE, 'BootNotification'); |
7dde0b73 JB |
185 | } catch (error) { |
186 | logger.error(this._basicFormatLog() + ' Send boot notification error: ' + error); | |
187 | } | |
188 | } | |
189 | this._autoReconnectRetryCount = 0; | |
190 | this._isSocketRestart = false; | |
191 | } | |
192 | ||
193 | onError(error) { | |
194 | switch (error) { | |
195 | case 'ECONNREFUSED': | |
196 | this._isSocketRestart = true; | |
197 | this._reconnect(error); | |
198 | break; | |
199 | default: | |
200 | logger.error(this._basicFormatLog() + ' Socket error: ' + error); | |
201 | break; | |
202 | } | |
203 | } | |
204 | ||
205 | onClose(error) { | |
206 | switch (error) { | |
207 | case 1000: // Normal close | |
208 | case 1005: | |
209 | logger.info(this._basicFormatLog() + ' Socket normally closed ' + error); | |
210 | this._autoReconnectRetryCount = 0; | |
211 | break; | |
212 | default: // Abnormal close | |
213 | this._isSocketRestart = true; | |
214 | this._reconnect(error); | |
215 | break; | |
216 | } | |
217 | } | |
218 | ||
219 | onPing() { | |
027b409a | 220 | logger.debug(this._basicFormatLog() + ' Has received a WS ping (rfc6455) from the server'); |
7dde0b73 JB |
221 | } |
222 | ||
223 | async onMessage(message) { | |
2d8cee5a | 224 | let [messageType, messageId, commandName, commandPayload, errorDetails] = [0, '', Constants.ENTITY_CHARGING_STATION, '', '']; |
7dde0b73 | 225 | try { |
2d8cee5a JB |
226 | // Parse the message |
227 | [messageType, messageId, commandName, commandPayload, errorDetails] = JSON.parse(message); | |
228 | ||
7dde0b73 JB |
229 | // Check the Type of message |
230 | switch (messageType) { | |
231 | // Incoming Message | |
f7869514 | 232 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
233 | // Process the call |
234 | this._statistics.addMessage(commandName); | |
235 | await this.handleRequest(messageId, commandName, commandPayload); | |
236 | break; | |
237 | // Outcome Message | |
f7869514 | 238 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
239 | // Respond |
240 | // eslint-disable-next-line no-case-declarations | |
241 | let responseCallback; let requestPayload; | |
242 | if (Utils.isIterable(this._requests[messageId])) { | |
243 | [responseCallback, , requestPayload] = this._requests[messageId]; | |
244 | } else { | |
245 | throw new Error(`Response request for unknown message id ${messageId} is not iterable`); | |
246 | } | |
247 | if (!responseCallback) { | |
248 | // Error | |
249 | throw new Error(`Response for unknown message id ${messageId}`); | |
250 | } | |
251 | delete this._requests[messageId]; | |
252 | // this._statistics.addMessage(commandName) | |
253 | responseCallback(commandName, requestPayload); | |
254 | break; | |
255 | // Error Message | |
f7869514 | 256 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 JB |
257 | if (!this._requests[messageId]) { |
258 | // Error | |
259 | throw new Error(`Error for unknown message id ${messageId}`); | |
260 | } | |
261 | // eslint-disable-next-line no-case-declarations | |
262 | let rejectCallback; | |
263 | if (Utils.isIterable(this._requests[messageId])) { | |
264 | [, rejectCallback] = this._requests[messageId]; | |
265 | } else { | |
266 | throw new Error(`Error request for unknown message id ${messageId} is not iterable`); | |
267 | } | |
268 | delete this._requests[messageId]; | |
269 | rejectCallback(new OCPPError(commandName, commandPayload, errorDetails)); | |
270 | break; | |
271 | // Error | |
272 | default: | |
273 | throw new Error(`Wrong message type ${messageType}`); | |
274 | } | |
275 | } catch (error) { | |
276 | // Log | |
277 | logger.error('%s Incoming message %j processing error %s on request content %s', this._basicFormatLog(), message, error, this._requests[messageId]); | |
278 | // Send error | |
279 | // await this.sendError(messageId, error); | |
280 | } | |
281 | } | |
282 | ||
027b409a JB |
283 | // eslint-disable-next-line class-methods-use-this |
284 | async _startHeartbeat(self) { | |
285 | if (self._heartbeatInterval && !self._heartbeatSetInterval) { | |
286 | logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms'); | |
287 | self._heartbeatSetInterval = setInterval(() => { | |
288 | try { | |
289 | const payload = { | |
290 | currentTime: new Date().toISOString(), | |
291 | }; | |
292 | self.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'Heartbeat'); | |
293 | } catch (error) { | |
294 | logger.error(self._basicFormatLog() + ' Send heartbeat error: ' + error); | |
295 | } | |
296 | }, self._heartbeatInterval); | |
297 | } else { | |
298 | logger.error(self._basicFormatLog() + ' Heartbeat interval undefined, not starting the heartbeat'); | |
299 | } | |
300 | } | |
301 | ||
7dde0b73 JB |
302 | _reconnect(error) { |
303 | logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error); | |
304 | // Stop heartbeat interval | |
305 | if (this._heartbeatSetInterval) { | |
306 | clearInterval(this._heartbeatSetInterval); | |
307 | this._heartbeatSetInterval = null; | |
308 | } | |
309 | // Stop the ATG | |
310 | if (this._stationInfo.AutomaticTransactionGenerator.enable && this._automaticTransactionGeneration && | |
311 | !this._automaticTransactionGeneration._timeToStop) { | |
312 | this._automaticTransactionGeneration.stop(); | |
313 | } | |
314 | if (this._autoReconnectTimeout !== 0 && | |
315 | (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) { | |
316 | logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`); | |
317 | this._autoReconnectRetryCount++; | |
318 | setTimeout(() => { | |
319 | logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount); | |
320 | this.start(); | |
321 | }, this._autoReconnectTimeout); | |
322 | } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) { | |
323 | logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`); | |
324 | } | |
325 | } | |
326 | ||
f7869514 | 327 | send(command, messageType = Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 | 328 | // Send Message |
027b409a | 329 | return this.sendMessage(Utils.generateUUID(), command, messageType); |
7dde0b73 JB |
330 | } |
331 | ||
332 | sendError(messageId, err) { | |
333 | // Check exception: only OCPP error are accepted | |
f7869514 | 334 | const error = (err instanceof OCPPError ? err : new OCPPError(Constants.OCPP_ERROR_INTERNAL_ERROR, err.message)); |
7dde0b73 | 335 | // Send error |
f7869514 | 336 | return this.sendMessage(messageId, error, Constants.OCPP_JSON_CALL_ERROR_MESSAGE); |
7dde0b73 JB |
337 | } |
338 | ||
027b409a JB |
339 | async sendStatusNotification(connectorId, status, errorCode = 'NoError') { |
340 | try { | |
341 | const payload = { | |
342 | connectorId, | |
343 | errorCode, | |
344 | status, | |
345 | }; | |
346 | await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StatusNotification'); | |
347 | } catch (error) { | |
348 | logger.error(this._basicFormatLog() + ' Send status error: ' + error); | |
349 | } | |
350 | } | |
351 | ||
352 | async sendStatusNotificationWithTimeout(connectorId, status, errorCode = 'NoError', timeout = Constants.STATUS_NOTIFICATION_TIMEOUT) { | |
353 | setTimeout(() => this.sendStatusNotification(connectorId, status, errorCode), timeout); | |
354 | } | |
355 | ||
f7869514 | 356 | sendMessage(messageId, command, messageType = Constants.OCPP_JSON_CALL_RESULT_MESSAGE, commandName = '') { |
7dde0b73 JB |
357 | // Send a message through wsConnection |
358 | const self = this; | |
359 | // Create a promise | |
360 | return new Promise((resolve, reject) => { | |
361 | let messageToSend; | |
362 | // Type of message | |
363 | switch (messageType) { | |
364 | // Request | |
f7869514 | 365 | case Constants.OCPP_JSON_CALL_MESSAGE: |
7dde0b73 JB |
366 | this._statistics.addMessage(commandName); |
367 | // Build request | |
368 | this._requests[messageId] = [responseCallback, rejectCallback, command]; | |
369 | messageToSend = JSON.stringify([messageType, messageId, commandName, command]); | |
370 | break; | |
371 | // Response | |
f7869514 | 372 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
7dde0b73 JB |
373 | // Build response |
374 | messageToSend = JSON.stringify([messageType, messageId, command]); | |
375 | break; | |
376 | // Error Message | |
f7869514 | 377 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
7dde0b73 | 378 | // Build Message |
894a1780 JB |
379 | this._statistics.addMessage(`Error ${command.code}`); |
380 | messageToSend = JSON.stringify([messageType, messageId, command.code ? command.code : Constants.OCPP_ERROR_GENERIC_ERROR, command.message ? command.message : '', command.details ? command.details : {}]); | |
7dde0b73 JB |
381 | break; |
382 | } | |
2e6f5966 | 383 | // Check if wsConnection is ready |
7dde0b73 JB |
384 | if (this._wsConnection.readyState === WebSocket.OPEN) { |
385 | // Yes: Send Message | |
386 | this._wsConnection.send(messageToSend); | |
387 | } else { | |
388 | // Buffer message until connection is back | |
389 | this._messageQueue.push(messageToSend); | |
390 | } | |
391 | // Request? | |
f7869514 | 392 | if (messageType !== Constants.OCPP_JSON_CALL_MESSAGE) { |
7dde0b73 JB |
393 | // Yes: send Ok |
394 | resolve(); | |
395 | } else if (this._wsConnection.readyState === WebSocket.OPEN) { | |
396 | // Send timeout in case connection is open otherwise wait for ever | |
397 | // FIXME: Handle message on timeout | |
f7869514 | 398 | setTimeout(() => rejectCallback(`Timeout for message ${messageId}`), Constants.OCPP_SOCKET_TIMEOUT); |
7dde0b73 JB |
399 | } |
400 | ||
401 | // Function that will receive the request's response | |
402 | function responseCallback(payload, requestPayload) { | |
403 | self._statistics.addMessage(commandName, true); | |
404 | const responseCallbackFn = 'handleResponse' + commandName; | |
405 | if (typeof self[responseCallbackFn] === 'function') { | |
406 | self[responseCallbackFn](payload, requestPayload, self); | |
407 | } else { | |
2e6f5966 | 408 | logger.debug(self._basicFormatLog() + ' Trying to call an undefined callback function: ' + responseCallbackFn); |
7dde0b73 JB |
409 | } |
410 | // Send the response | |
411 | resolve(payload); | |
412 | } | |
413 | ||
414 | // Function that will receive the request's rejection | |
415 | function rejectCallback(reason) { | |
416 | // Build Exception | |
417 | // eslint-disable-next-line no-empty-function | |
418 | self._requests[messageId] = [() => { }, () => { }, '']; // Properly format the request | |
419 | const error = reason instanceof OCPPError ? reason : new Error(reason); | |
420 | // Send error | |
421 | reject(error); | |
422 | } | |
423 | }); | |
424 | } | |
425 | ||
027b409a | 426 | async _basicStartMessageSequence() { |
7dde0b73 | 427 | this._startHeartbeat(this); |
2e6f5966 JB |
428 | // build connectors |
429 | if (!this._connectors) { | |
7dde0b73 | 430 | this._connectors = {}; |
2e6f5966 | 431 | const connectorsConfig = Utils.cloneJSonDocument(this._stationInfo.Connectors); |
7dde0b73 JB |
432 | // determine number of customized connectors |
433 | let lastConnector; | |
434 | for (lastConnector in connectorsConfig) { | |
2e6f5966 JB |
435 | // add connector 0, OCPP specification violation that for example KEBA have |
436 | if (Utils.convertToInt(lastConnector) === 0 && this._stationInfo.useConnectorId0) { | |
7dde0b73 JB |
437 | this._connectors[lastConnector] = connectorsConfig[lastConnector]; |
438 | } | |
439 | } | |
440 | let maxConnectors = 0; | |
441 | if (Array.isArray(this._stationInfo.numberOfConnectors)) { | |
442 | // generate some connectors | |
443 | maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length]; | |
444 | } else { | |
445 | maxConnectors = this._stationInfo.numberOfConnectors; | |
446 | } | |
447 | // generate all connectors | |
448 | for (let index = 1; index <= maxConnectors; index++) { | |
2e6f5966 | 449 | const randConnectorID = this._stationInfo.randomConnectors ? Utils.getRandomInt(maxConnectors, 1) : index; |
7dde0b73 JB |
450 | this._connectors[index] = connectorsConfig[randConnectorID]; |
451 | } | |
452 | } | |
453 | ||
454 | for (const connector in this._connectors) { | |
455 | if (!this._connectors[connector].transactionStarted) { | |
456 | if (this._connectors[connector].bootStatus) { | |
027b409a | 457 | this.sendStatusNotificationWithTimeout(connector, this._connectors[connector].bootStatus); |
7dde0b73 | 458 | } else { |
027b409a | 459 | this.sendStatusNotificationWithTimeout(connector, 'Available'); |
7dde0b73 JB |
460 | } |
461 | } else { | |
027b409a | 462 | this.sendStatusNotificationWithTimeout(connector, 'Charging'); |
7dde0b73 JB |
463 | } |
464 | } | |
465 | ||
466 | if (this._stationInfo.AutomaticTransactionGenerator.enable) { | |
467 | if (!this._automaticTransactionGeneration) { | |
468 | this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this); | |
469 | } | |
470 | this._automaticTransactionGeneration.start(); | |
471 | } | |
472 | this._statistics.start(); | |
473 | } | |
474 | ||
027b409a JB |
475 | _resetTransactionOnConnector(connectorID) { |
476 | this._connectors[connectorID].transactionStarted = false; | |
477 | this._connectors[connectorID].transactionId = null; | |
478 | this._connectors[connectorID].lastConsumptionValue = -1; | |
479 | this._connectors[connectorID].lastSoC = -1; | |
480 | if (this._connectors[connectorID].transactionInterval) { | |
481 | clearInterval(this._connectors[connectorID].transactionInterval); | |
482 | } | |
483 | } | |
484 | ||
485 | handleResponseBootNotification(payload) { | |
486 | if (payload.status === 'Accepted') { | |
487 | this._heartbeatInterval = payload.interval * 1000; | |
488 | this._basicStartMessageSequence(); | |
489 | } else { | |
490 | logger.info(this._basicFormatLog() + ' Boot Notification rejected'); | |
491 | } | |
492 | } | |
493 | ||
7dde0b73 | 494 | handleResponseStartTransaction(payload, requestPayload) { |
a6e68f34 | 495 | // Reset connector transaction related attributes |
84393381 JB |
496 | this._connectors[requestPayload.connectorId].transactionStarted = false; |
497 | this._connectors[requestPayload.connectorId].idTag = requestPayload.idTag; | |
498 | ||
7dde0b73 JB |
499 | if (payload.idTagInfo.status === 'Accepted') { |
500 | for (const connector in this._connectors) { | |
def3d48e | 501 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
502 | this._connectors[connector].transactionStarted = true; |
503 | this._connectors[connector].transactionId = payload.transactionId; | |
504 | this._connectors[connector].lastConsumptionValue = 0; | |
505 | this._connectors[connector].lastSoC = 0; | |
027b409a | 506 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connector].transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId + ' for idTag ' + requestPayload.idTag); |
7dde0b73 | 507 | this.sendStatusNotification(requestPayload.connectorId, 'Charging'); |
a6e68f34 | 508 | const configuredMeterValueSampleInterval = this._configuration.configurationKey.find((value) => value.key === 'MeterValueSampleInterval'); |
7dde0b73 | 509 | this.startMeterValues(requestPayload.connectorId, |
a6e68f34 | 510 | (configuredMeterValueSampleInterval ? configuredMeterValueSampleInterval.value * 1000 : 60000), |
7dde0b73 JB |
511 | this); |
512 | } | |
513 | } | |
514 | } else { | |
515 | logger.error(this._basicFormatLog() + ' Starting transaction id ' + payload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status + ', idTag ' + requestPayload.idTag); | |
516 | for (const connector in this._connectors) { | |
def3d48e | 517 | if (Utils.convertToInt(connector) === Utils.convertToInt(requestPayload.connectorId)) { |
7dde0b73 JB |
518 | this._resetTransactionOnConnector(connector); |
519 | } | |
520 | } | |
521 | this.sendStatusNotification(requestPayload.connectorId, 'Available'); | |
522 | } | |
523 | } | |
524 | ||
027b409a JB |
525 | handleResponseStatusNotification(payload) { |
526 | logger.debug(this._basicFormatLog() + ' Status notification response received: %j', payload); | |
7dde0b73 JB |
527 | } |
528 | ||
027b409a JB |
529 | handleResponseMeterValues(payload) { |
530 | logger.debug(this._basicFormatLog() + ' MeterValues response received: %j', payload); | |
531 | } | |
532 | ||
533 | handleResponseHeartbeat(payload) { | |
534 | logger.debug(this._basicFormatLog() + ' Heartbeat response received: %j', payload); | |
7dde0b73 JB |
535 | } |
536 | ||
537 | async handleRequest(messageId, commandName, commandPayload) { | |
538 | let result; | |
539 | this._statistics.addMessage(commandName, true); | |
540 | // Call | |
541 | if (typeof this['handle' + commandName] === 'function') { | |
542 | try { | |
543 | // Call the method | |
544 | result = await this['handle' + commandName](commandPayload); | |
545 | } catch (error) { | |
546 | // Log | |
547 | logger.error(this._basicFormatLog() + ' Handle request error: ' + error); | |
548 | // Send back response to inform back end | |
549 | await this.sendError(messageId, error); | |
550 | } | |
551 | } else { | |
84393381 | 552 | // Throw exception |
f7869514 | 553 | await this.sendError(messageId, new OCPPError(Constants.OCPP_ERROR_NOT_IMPLEMENTED, 'Not implemented', {})); |
7dde0b73 JB |
554 | throw new Error(`${commandName} is not implemented ${JSON.stringify(commandPayload, null, ' ')}`); |
555 | } | |
84393381 | 556 | // Send response |
f7869514 | 557 | await this.sendMessage(messageId, result, Constants.OCPP_JSON_CALL_RESULT_MESSAGE); |
7dde0b73 JB |
558 | } |
559 | ||
560 | async handleGetConfiguration() { | |
561 | return this._configuration; | |
562 | } | |
563 | ||
564 | async handleChangeConfiguration(commandPayload) { | |
565 | const keyToChange = this._configuration.configurationKey.find((element) => element.key === commandPayload.key); | |
a6e68f34 JB |
566 | if (keyToChange && !Utils.convertToBoolean(keyToChange.readonly)) { |
567 | const keyIndex = this._configuration.configurationKey.indexOf(keyToChange); | |
568 | this._configuration.configurationKey[keyIndex].value = commandPayload.value; | |
dcab13bd | 569 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 | 570 | } |
dcab13bd | 571 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 JB |
572 | } |
573 | ||
574 | async handleRemoteStartTransaction(commandPayload) { | |
575 | const transactionConnectorID = (commandPayload.connectorId ? commandPayload.connectorId : '1'); | |
2e6f5966 | 576 | if (this.hasAuthorizedTags() && this._getLocalAuthListEnabled() && this._getAuthorizeRemoteTxRequests()) { |
dcab13bd | 577 | // Check if authorized |
2e6f5966 | 578 | if (this._authorizedTags.find((value) => value === commandPayload.idTag)) { |
7dde0b73 | 579 | // Authorization successful start transaction |
2e6f5966 | 580 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), Constants.START_TRANSACTION_TIMEOUT); |
027b409a | 581 | logger.debug(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' for idTag ' + commandPayload.idTag); |
dcab13bd | 582 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 | 583 | } |
84393381 | 584 | logger.error(this._basicFormatLog() + ' Remote starting transaction REJECTED with status ' + commandPayload.idTagInfo.status + ', idTag ' + commandPayload.idTag); |
dcab13bd | 585 | return Constants.OCPP_RESPONSE_REJECTED; |
7dde0b73 | 586 | } |
dcab13bd | 587 | // No local authorization check required => start transaction |
2e6f5966 | 588 | setTimeout(() => this.sendStartTransaction(transactionConnectorID, commandPayload.idTag), Constants.START_TRANSACTION_TIMEOUT); |
027b409a JB |
589 | logger.debug(this._basicFormatLog() + ' Transaction remotely STARTED on ' + this._stationInfo.name + '#' + transactionConnectorID + ' for idTag ' + commandPayload.idTag); |
590 | return Constants.OCPP_RESPONSE_ACCEPTED; | |
591 | } | |
592 | ||
593 | async handleRemoteStopTransaction(commandPayload) { | |
594 | for (const connector in this._connectors) { | |
595 | if (this._connectors[connector].transactionId === commandPayload.transactionId) { | |
596 | this.sendStopTransaction(commandPayload.transactionId, connector); | |
597 | } | |
598 | } | |
dcab13bd | 599 | return Constants.OCPP_RESPONSE_ACCEPTED; |
7dde0b73 JB |
600 | } |
601 | ||
602 | async sendStartTransaction(connectorID, idTag) { | |
603 | try { | |
604 | const payload = { | |
605 | connectorId: connectorID, | |
606 | idTag, | |
607 | meterStart: 0, | |
608 | timestamp: new Date().toISOString(), | |
609 | }; | |
027b409a | 610 | return await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StartTransaction'); |
7dde0b73 JB |
611 | } catch (error) { |
612 | logger.error(this._basicFormatLog() + ' Send start transaction error: ' + error); | |
613 | this._resetTransactionOnConnector(connectorID); | |
614 | throw error; | |
615 | } | |
616 | } | |
617 | ||
618 | async sendStopTransaction(transactionId, connectorID) { | |
619 | try { | |
620 | const payload = { | |
621 | transactionId, | |
622 | meterStop: 0, | |
623 | timestamp: new Date().toISOString(), | |
624 | }; | |
027b409a | 625 | await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StopTransaction'); |
7dde0b73 JB |
626 | logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[connectorID].transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + connectorID); |
627 | this.sendStatusNotification(connectorID, 'Available'); | |
628 | } catch (error) { | |
629 | logger.error(this._basicFormatLog() + ' Send stop transaction error: ' + error); | |
630 | throw error; | |
631 | } finally { | |
632 | this._resetTransactionOnConnector(connectorID); | |
633 | } | |
634 | } | |
635 | ||
7dde0b73 JB |
636 | // eslint-disable-next-line class-methods-use-this |
637 | async sendMeterValues(connectorID, interval, self) { | |
638 | try { | |
639 | const sampledValueLcl = { | |
640 | timestamp: new Date().toISOString(), | |
641 | }; | |
2e6f5966 | 642 | const meterValuesClone = Utils.cloneJSonDocument(self._getConnector(connectorID).MeterValues); |
7dde0b73 JB |
643 | if (Array.isArray(meterValuesClone)) { |
644 | sampledValueLcl.sampledValue = meterValuesClone; | |
645 | } else { | |
646 | sampledValueLcl.sampledValue = [meterValuesClone]; | |
647 | } | |
648 | for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) { | |
649 | if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') { | |
650 | sampledValueLcl.sampledValue[index].value = Math.floor(Math.random() * 100) + 1; | |
651 | if (sampledValueLcl.sampledValue[index].value > 100) { | |
652 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
653 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
027b409a | 654 | ', value: ' + sampledValueLcl.sampledValue[index].value); |
7dde0b73 JB |
655 | } |
656 | } else { | |
657 | // Persist previous value in connector | |
658 | const connector = self._connectors[connectorID]; | |
659 | let consumption; | |
a6e68f34 | 660 | consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval, 4); |
7dde0b73 JB |
661 | if (connector && connector.lastConsumptionValue >= 0) { |
662 | connector.lastConsumptionValue += consumption; | |
663 | } else { | |
664 | connector.lastConsumptionValue = 0; | |
665 | } | |
666 | consumption = Math.round(connector.lastConsumptionValue * 3600 / interval); | |
667 | logger.info(self._basicFormatLog() + ' ConnectorID ' + connectorID + ' transaction ' + connector.transactionId + ' value ' + connector.lastConsumptionValue); | |
668 | sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue; | |
669 | if (sampledValueLcl.sampledValue[index].value > (self._stationInfo.maxPower * 3600 / interval) || sampledValueLcl.sampledValue[index].value < 500) { | |
670 | logger.info(self._basicFormatLog() + ' Meter type: ' + | |
671 | (sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'default') + | |
027b409a | 672 | ', value: ' + sampledValueLcl.sampledValue[index].value + '/' + (self._stationInfo.maxPower * 3600 / interval)); |
7dde0b73 JB |
673 | } |
674 | } | |
675 | } | |
676 | ||
677 | const payload = { | |
678 | connectorId: connectorID, | |
679 | transactionId: self._connectors[connectorID].transactionId, | |
680 | meterValue: [sampledValueLcl], | |
681 | }; | |
027b409a | 682 | await self.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'MeterValues'); |
7dde0b73 JB |
683 | } catch (error) { |
684 | logger.error(self._basicFormatLog() + ' Send meter values error: ' + error); | |
685 | } | |
686 | } | |
687 | ||
688 | async startMeterValues(connectorID, interval, self) { | |
84393381 | 689 | if (!this._connectors[connectorID].transactionStarted) { |
2e6f5966 | 690 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction started`); |
84393381 JB |
691 | } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) { |
692 | logger.debug(`${self._basicFormatLog()} Trying to start meter values on connector ID ${connectorID} with no transaction id`); | |
693 | } | |
7dde0b73 JB |
694 | this._connectors[connectorID].transactionInterval = setInterval(async () => { |
695 | const sendMeterValues = performance.timerify(this.sendMeterValues); | |
696 | this._performanceObserver.observe({ | |
697 | entryTypes: ['function'], | |
698 | }); | |
699 | await sendMeterValues(connectorID, interval, self); | |
700 | }, interval); | |
701 | } | |
702 | ||
2e6f5966 JB |
703 | hasAuthorizedTags() { |
704 | return Array.isArray(this._authorizedTags) && this._authorizedTags.length > 0; | |
7dde0b73 JB |
705 | } |
706 | ||
707 | getRandomTagId() { | |
2e6f5966 JB |
708 | const index = Math.round(Math.floor(Math.random() * this._authorizedTags.length - 1)); |
709 | return this._authorizedTags[index]; | |
7dde0b73 JB |
710 | } |
711 | ||
712 | _getConnector(number) { | |
713 | return this._stationInfo.Connectors[number]; | |
714 | } | |
715 | } | |
716 | ||
717 | module.exports = ChargingStation; |