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