this._stationTemplateFile = stationTemplateFile;
this._initialize();
+ this._isSocketRestart = false;
this._autoReconnectRetryCount = 0;
this._autoReconnectMaxRetries = Configuration.getAutoReconnectMaxRetries(); // -1 for unlimited
this._autoReconnectTimeout = Configuration.getAutoReconnectTimeout() * 1000; // ms, zero for disabling
this._requests = {};
this._messageQueue = [];
- this._isSocketRestart = false;
-
this._authorizedTags = this._loadAndGetAuthorizedTags();
}
+ _getStationName(stationTemplate) {
+ return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + this._index).substr(('000000000' + this._index).length - 4);
+ }
+
+ _buildStationInfo() {
+ let stationTemplateFromFile;
+ try {
+ // Load template file
+ const fileDescriptor = fs.openSync(this._stationTemplateFile, 'r');
+ stationTemplateFromFile = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8'));
+ fs.closeSync(fileDescriptor);
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Template file loading error: ' + error);
+ }
+ const stationTemplate = stationTemplateFromFile || {};
+ if (!Utils.isEmptyArray(stationTemplateFromFile.power)) {
+ stationTemplate.maxPower = stationTemplateFromFile.power[Math.floor(Math.random() * stationTemplateFromFile.power.length)];
+ } else {
+ stationTemplate.maxPower = stationTemplateFromFile.power;
+ }
+ stationTemplate.name = this._getStationName(stationTemplateFromFile);
+ stationTemplate.resetTime = stationTemplateFromFile.resetTime ? stationTemplateFromFile.resetTime * 1000 : Constants.CHARGING_STATION_DEFAULT_RESET_TIME;
+ return stationTemplate;
+ }
+
_initialize() {
this._stationInfo = this._buildStationInfo();
this._bootNotificationMessage = {
};
this._configuration = this._getConfiguration();
this._supervisionUrl = this._getSupervisionURL();
+ this._wsConnectionUrl = this._supervisionUrl + '/' + this._stationInfo.name;
+ // Build connectors if needed
+ const maxConnectors = this._getMaxConnectors();
+ const connectorsConfig = Utils.cloneJSonDocument(this._stationInfo.Connectors);
+ const connectorsConfigLength = Utils.convertToBoolean(this._stationInfo.useConnectorId0) && Object.keys(connectorsConfig).includes('0') ? Object.keys(connectorsConfig).length : Object.keys(connectorsConfig).length - 1;
+ if (!this._connectors || (this._connectors && Object.keys(this._connectors).length !== connectorsConfigLength)) {
+ this._connectors = {};
+ // Determine number of customized connectors
+ let lastConnector;
+ for (lastConnector in connectorsConfig) {
+ // Add connector 0, OCPP specification violation that for example KEBA have
+ if (Utils.convertToInt(lastConnector) === 0 && Utils.convertToBoolean(this._stationInfo.useConnectorId0) &&
+ connectorsConfig[lastConnector]) {
+ this._connectors[lastConnector] = connectorsConfig[lastConnector];
+ }
+ }
+ this._addConfigurationKey('NumberOfConnectors', maxConnectors, true);
+ // Generate all connectors
+ for (let index = 1; index <= maxConnectors; index++) {
+ const randConnectorID = Utils.convertToBoolean(this._stationInfo.randomConnectors) ? Utils.getRandomInt(lastConnector, 1) : index;
+ this._connectors[index] = connectorsConfig[randConnectorID];
+ }
+ }
+ // Initialize transaction attributes on connectors
+ for (const connector in this._connectors) {
+ if (!this._connectors[connector].transactionStarted) {
+ this._initTransactionOnConnector(connector);
+ }
+ }
this._statistics = new Statistics(this._stationInfo.name);
this._performanceObserver = new PerformanceObserver((list) => {
const entry = list.getEntries()[0];
return authorizedTags;
}
- _startAuthorizationFileMonitoring() {
- // eslint-disable-next-line no-unused-vars
- fs.watchFile(this._getAuthorizationFile(), (current, previous) => {
- try {
- logger.debug(this._basicFormatLog() + ' Authorization file ' + this._getAuthorizationFile() + ' have changed, reload');
- // Initialize _authorizedTags
- this._authorizedTags = this._loadAndGetAuthorizedTags();
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Authorization file monitoring error: ' + error);
- }
- });
+ getRandomTagId() {
+ const index = Math.floor(Math.random() * this._authorizedTags.length);
+ return this._authorizedTags[index];
}
- _startStationTemplateFileMonitoring() {
- // eslint-disable-next-line no-unused-vars
- fs.watchFile(this._stationTemplateFile, (current, previous) => {
- try {
- logger.debug(this._basicFormatLog() + ' Template file ' + this._stationTemplateFile + ' have changed, reload');
- // Initialize
- this._initialize();
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Charging station template file monitoring error: ' + error);
- }
- });
+ hasAuthorizedTags() {
+ return !Utils.isEmptyArray(this._authorizedTags);
+ }
+
+ _getConnector(number) {
+ return this._stationInfo.Connectors[number];
+ }
+
+ _getMaxConnectors() {
+ let maxConnectors = 0;
+ if (!Utils.isEmptyArray(this._stationInfo.numberOfConnectors)) {
+ // Get evenly the number of connectors
+ maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length];
+ } else {
+ maxConnectors = this._stationInfo.numberOfConnectors;
+ }
+ return maxConnectors;
}
_getSupervisionURL() {
const supervisionUrls = Utils.cloneJSonDocument(this._stationInfo.supervisionURL ? this._stationInfo.supervisionURL : Configuration.getSupervisionURLs());
let indexUrl = 0;
- if (Array.isArray(supervisionUrls)) {
+ if (!Utils.isEmptyArray(supervisionUrls)) {
if (Configuration.getDistributeStationToTenantEqually()) {
indexUrl = this._index % supervisionUrls.length;
} else {
return supervisionUrls;
}
- _getStationName(stationTemplate) {
- return stationTemplate.fixedName ? stationTemplate.baseName : stationTemplate.baseName + '-' + ('000000000' + this._index).substr(('000000000' + this._index).length - 4);
- }
-
_getAuthorizeRemoteTxRequests() {
const authorizeRemoteTxRequests = this._getConfigurationKey('AuthorizeRemoteTxRequests');
return authorizeRemoteTxRequests ? Utils.convertToBoolean(authorizeRemoteTxRequests.value) : false;
return localAuthListEnabled ? Utils.convertToBoolean(localAuthListEnabled.value) : false;
}
- _buildStationInfo() {
- let stationTemplateFromFile;
- try {
- // Load template file
- const fileDescriptor = fs.openSync(this._stationTemplateFile, 'r');
- stationTemplateFromFile = JSON.parse(fs.readFileSync(fileDescriptor, 'utf8'));
- fs.closeSync(fileDescriptor);
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Template file loading error: ' + error);
+ async _basicStartMessageSequence() {
+ // Start heartbeat
+ this._startHeartbeat(this);
+ // Initialize connectors status
+ for (const connector in this._connectors) {
+ if (!this._connectors[connector].transactionStarted) {
+ if (this._connectors[connector].bootStatus) {
+ this.sendStatusNotificationWithTimeout(connector, this._connectors[connector].bootStatus);
+ } else {
+ this.sendStatusNotificationWithTimeout(connector, 'Available');
+ }
+ } else {
+ this.sendStatusNotificationWithTimeout(connector, 'Charging');
+ }
}
- const stationTemplate = stationTemplateFromFile || {};
- if (Array.isArray(stationTemplateFromFile.power)) {
- stationTemplate.maxPower = stationTemplateFromFile.power[Math.floor(Math.random() * stationTemplateFromFile.power.length)];
+ // Start the ATG
+ if (Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.enable)) {
+ if (!this._automaticTransactionGeneration) {
+ this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this);
+ }
+ if (this._automaticTransactionGeneration.timeToStop) {
+ this._automaticTransactionGeneration.start();
+ }
+ }
+ this._statistics.start();
+ }
+
+ // eslint-disable-next-line class-methods-use-this
+ async _startHeartbeat(self) {
+ if (self._heartbeatInterval && self._heartbeatInterval > 0 && !self._heartbeatSetInterval) {
+ self._heartbeatSetInterval = setInterval(() => {
+ this.sendHeartbeat();
+ }, self._heartbeatInterval);
+ logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms');
} else {
- stationTemplate.maxPower = stationTemplateFromFile.power;
+ logger.error(`${self._basicFormatLog()} Heartbeat interval set to ${self._heartbeatInterval}, not starting the heartbeat`);
+ }
+ }
+
+ async _stopHeartbeat() {
+ if (this._heartbeatSetInterval) {
+ clearInterval(this._heartbeatSetInterval);
+ this._heartbeatSetInterval = null;
+ }
+ }
+
+ _startAuthorizationFileMonitoring() {
+ // eslint-disable-next-line no-unused-vars
+ fs.watchFile(this._getAuthorizationFile(), (current, previous) => {
+ try {
+ logger.debug(this._basicFormatLog() + ' Authorization file ' + this._getAuthorizationFile() + ' have changed, reload');
+ // Initialize _authorizedTags
+ this._authorizedTags = this._loadAndGetAuthorizedTags();
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Authorization file monitoring error: ' + error);
+ }
+ });
+ }
+
+ _startStationTemplateFileMonitoring() {
+ // eslint-disable-next-line no-unused-vars
+ fs.watchFile(this._stationTemplateFile, (current, previous) => {
+ try {
+ logger.debug(this._basicFormatLog() + ' Template file ' + this._stationTemplateFile + ' have changed, reload');
+ // Initialize
+ this._initialize();
+ this._addConfigurationKey('HeartBeatInterval', Utils.convertToInt(this._heartbeatInterval ? this._heartbeatInterval / 1000 : 0));
+ this._addConfigurationKey('HeartbeatInterval', Utils.convertToInt(this._heartbeatInterval ? this._heartbeatInterval / 1000 : 0), false, false);
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Charging station template file monitoring error: ' + error);
+ }
+ });
+ }
+
+ async _startMeterValues(connectorID, interval) {
+ if (!this._connectors[connectorID].transactionStarted) {
+ logger.error(`${this._basicFormatLog()} Trying to start MeterValues on connector ID ${connectorID} with no transaction started`);
+ return;
+ } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) {
+ logger.error(`${this._basicFormatLog()} Trying to start MeterValues on connector ID ${connectorID} with no transaction id`);
+ return;
+ }
+ if (interval > 0) {
+ this._connectors[connectorID].transactionSetInterval = setInterval(async () => {
+ const sendMeterValues = performance.timerify(this.sendMeterValues);
+ this._performanceObserver.observe({
+ entryTypes: ['function'],
+ });
+ await sendMeterValues(connectorID, interval, this);
+ }, interval);
+ } else {
+ logger.error(`${this._basicFormatLog()} Charging station MeterValueSampleInterval configuration set to ${interval}ms, not sending MeterValues`);
}
- stationTemplate.name = this._getStationName(stationTemplateFromFile);
- return stationTemplate;
}
async start() {
- this._url = this._supervisionUrl + '/' + this._stationInfo.name;
- this._wsConnection = new WebSocket(this._url, 'ocpp1.6');
- logger.info(this._basicFormatLog() + ' Will communicate with ' + this._supervisionUrl);
+ if (!this._wsConnectionUrl) {
+ this._wsConnectionUrl = this._supervisionUrl + '/' + this._stationInfo.name;
+ }
+ this._wsConnection = new WebSocket(this._wsConnectionUrl, 'ocpp' + Constants.OCPP_VERSION_16);
+ logger.info(this._basicFormatLog() + ' Will communicate through URL ' + this._supervisionUrl);
// Monitor authorization file
this._startAuthorizationFileMonitoring();
// Monitor station template file
this._wsConnection.on('ping', this.onPing.bind(this));
}
+ async stop(reason = '') {
+ // Stop heartbeat
+ await this._stopHeartbeat();
+ // Stop the ATG
+ if (Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.enable) &&
+ this._automaticTransactionGeneration &&
+ !this._automaticTransactionGeneration.timeToStop) {
+ await this._automaticTransactionGeneration.stop(reason);
+ } else {
+ for (const connector in this._connectors) {
+ if (this._connectors[connector].transactionStarted) {
+ await this.sendStopTransaction(this._connectors[connector].transactionId, reason);
+ }
+ }
+ }
+ // eslint-disable-next-line guard-for-in
+ for (const connector in this._connectors) {
+ await this.sendStatusNotification(connector, 'Unavailable');
+ }
+ if (this._wsConnection && this._wsConnection.readyState === WebSocket.OPEN) {
+ await this._wsConnection.close();
+ }
+ }
+
+ _reconnect(error) {
+ logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error);
+ // Stop the ATG if needed
+ if (Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.enable) &&
+ Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.stopOnConnectionFailure) &&
+ this._automaticTransactionGeneration &&
+ !this._automaticTransactionGeneration.timeToStop) {
+ this._automaticTransactionGeneration.stop();
+ }
+ // Stop heartbeat
+ this._stopHeartbeat();
+ if (this._autoReconnectTimeout !== 0 &&
+ (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) {
+ logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`);
+ this._autoReconnectRetryCount++;
+ setTimeout(() => {
+ logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount);
+ this.start();
+ }, this._autoReconnectTimeout);
+ } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) {
+ logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`);
+ }
+ }
+
onOpen() {
- logger.info(`${this._basicFormatLog()} Is connected to server through ${this._url}`);
- if (!this._heartbeatInterval) {
+ logger.info(`${this._basicFormatLog()} Is connected to server through ${this._wsConnectionUrl}`);
+ if (!this._isSocketRestart) {
// Send BootNotification
- try {
- this.sendMessage(Utils.generateUUID(), this._bootNotificationMessage, Constants.OCPP_JSON_CALL_MESSAGE, 'BootNotification');
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Send boot notification error: ' + error);
- }
+ this.sendBootNotification();
}
if (this._isSocketRestart) {
this._basicStartMessageSequence();
- if (this._messageQueue.length > 0) {
+ if (!Utils.isEmptyArray(this._messageQueue)) {
this._messageQueue.forEach((message) => {
- if (this._wsConnection.readyState === WebSocket.OPEN) {
+ if (this._wsConnection && this._wsConnection.readyState === WebSocket.OPEN) {
this._wsConnection.send(message);
}
});
}
}
- // eslint-disable-next-line class-methods-use-this
- async _startHeartbeat(self) {
- if (self._heartbeatInterval && !self._heartbeatSetInterval) {
- self._heartbeatSetInterval = setInterval(() => {
- try {
- const payload = {
- currentTime: new Date().toISOString(),
- };
- self.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'Heartbeat');
- } catch (error) {
- logger.error(self._basicFormatLog() + ' Send heartbeat error: ' + error);
- }
- }, self._heartbeatInterval);
- logger.info(self._basicFormatLog() + ' Heartbeat started every ' + self._heartbeatInterval + 'ms');
- } else {
- logger.error(self._basicFormatLog() + ' Heartbeat interval undefined, not starting the heartbeat');
+ sendHeartbeat() {
+ try {
+ const payload = {
+ currentTime: new Date().toISOString(),
+ };
+ this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'Heartbeat');
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Send Heartbeat error: ' + error);
+ throw error;
}
}
- _reconnect(error) {
- logger.error(this._basicFormatLog() + ' Socket: abnormally closed', error);
- // Stop heartbeat
- if (this._heartbeatSetInterval) {
- clearInterval(this._heartbeatSetInterval);
- this._heartbeatSetInterval = null;
- }
- // Stop the ATG if needed
- if (Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.enable) &&
- Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.stopOnConnectionFailure) &&
- this._automaticTransactionGeneration &&
- !this._automaticTransactionGeneration.timeToStop) {
- this._automaticTransactionGeneration.stop();
- }
- if (this._autoReconnectTimeout !== 0 &&
- (this._autoReconnectRetryCount < this._autoReconnectMaxRetries || this._autoReconnectMaxRetries === -1)) {
- logger.error(`${this._basicFormatLog()} Socket: connection retry with timeout ${this._autoReconnectTimeout}ms`);
- this._autoReconnectRetryCount++;
- setTimeout(() => {
- logger.error(this._basicFormatLog() + ' Socket: reconnecting try #' + this._autoReconnectRetryCount);
- this.start();
- }, this._autoReconnectTimeout);
- } else if (this._autoReconnectTimeout !== 0 || this._autoReconnectMaxRetries !== -1) {
- logger.error(`${this._basicFormatLog()} Socket: max retries reached (${this._autoReconnectRetryCount}) or retry disabled (${this._autoReconnectTimeout})`);
+ sendBootNotification() {
+ try {
+ this.sendMessage(Utils.generateUUID(), this._bootNotificationMessage, Constants.OCPP_JSON_CALL_MESSAGE, 'BootNotification');
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Send BootNotification error: ' + error);
+ throw error;
}
}
- sendError(messageId, err) {
- // Check exception: only OCPP error are accepted
- const error = err instanceof OCPPError ? err : new OCPPError(Constants.OCPP_ERROR_INTERNAL_ERROR, err.message);
- // Send error
- return this.sendMessage(messageId, error, Constants.OCPP_JSON_CALL_ERROR_MESSAGE);
- }
-
async sendStatusNotification(connectorId, status, errorCode = 'NoError') {
try {
const payload = {
};
await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StatusNotification');
} catch (error) {
- logger.error(this._basicFormatLog() + ' Send status error: ' + error);
+ logger.error(this._basicFormatLog() + ' Send StatusNotification error: ' + error);
+ throw error;
}
}
- async sendStatusNotificationWithTimeout(connectorId, status, errorCode = 'NoError', timeout = Constants.STATUS_NOTIFICATION_TIMEOUT) {
+ sendStatusNotificationWithTimeout(connectorId, status, errorCode = 'NoError', timeout = Constants.STATUS_NOTIFICATION_TIMEOUT) {
setTimeout(() => this.sendStatusNotification(connectorId, status, errorCode), timeout);
}
+ async sendStartTransaction(connectorID, idTag) {
+ try {
+ const payload = {
+ connectorId: connectorID,
+ idTag,
+ meterStart: 0,
+ timestamp: new Date().toISOString(),
+ };
+ return await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StartTransaction');
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Send StartTransaction error: ' + error);
+ throw error;
+ }
+ }
+
+ sendStartTransactionWithTimeout(connectorID, idTag, timeout) {
+ setTimeout(() => this.sendStartTransaction(connectorID, idTag), timeout);
+ }
+
+ async sendStopTransaction(transactionId, reason = '') {
+ try {
+ let payload = {};
+ if (reason) {
+ payload = {
+ transactionId,
+ meterStop: 0,
+ timestamp: new Date().toISOString(),
+ reason,
+ };
+ } else {
+ payload = {
+ transactionId,
+ meterStop: 0,
+ timestamp: new Date().toISOString(),
+ };
+ }
+ await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StopTransaction');
+ } catch (error) {
+ logger.error(this._basicFormatLog() + ' Send StopTransaction error: ' + error);
+ throw error;
+ }
+ }
+
+ // eslint-disable-next-line class-methods-use-this
+ async sendMeterValues(connectorID, interval, self, debug = false) {
+ try {
+ const sampledValueLcl = {
+ timestamp: new Date().toISOString(),
+ };
+ const meterValuesClone = Utils.cloneJSonDocument(self._getConnector(connectorID).MeterValues);
+ if (!Utils.isEmptyArray(meterValuesClone)) {
+ sampledValueLcl.sampledValue = meterValuesClone;
+ } else {
+ sampledValueLcl.sampledValue = [meterValuesClone];
+ }
+ for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) {
+ const connector = self._connectors[connectorID];
+ // SoC measurand
+ if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') {
+ sampledValueLcl.sampledValue[index].value = Utils.getRandomInt(100);
+ if (sampledValueLcl.sampledValue[index].value > 100 || debug) {
+ logger.error(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value: ${sampledValueLcl.sampledValue[index].value}`);
+ }
+ // Voltage measurand
+ } else if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'Voltage') {
+ sampledValueLcl.sampledValue[index].value = 230;
+ // Energy.Active.Import.Register measurand (default)
+ } else if (!sampledValueLcl.sampledValue[index].measurand || sampledValueLcl.sampledValue[index].measurand === 'Energy.Active.Import.Register') {
+ // Persist previous value in connector
+ const consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval);
+ if (connector && connector.lastConsumptionValue >= 0) {
+ connector.lastConsumptionValue += consumption;
+ } else {
+ connector.lastConsumptionValue = 0;
+ }
+ const maxConsumption = self._stationInfo.maxPower * 3600 / interval;
+ logger.info(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value ${connector.lastConsumptionValue}`);
+ sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue;
+ if (sampledValueLcl.sampledValue[index].value > maxConsumption || debug) {
+ logger.error(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value: ${sampledValueLcl.sampledValue[index].value}/${maxConsumption}`);
+ }
+ // Unsupported measurand
+ } else {
+ logger.info(`${self._basicFormatLog()} Unsupported MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'} on connectorID ${connectorID}`);
+ }
+ }
+
+ const payload = {
+ connectorId: connectorID,
+ transactionId: self._connectors[connectorID].transactionId,
+ meterValue: [sampledValueLcl],
+ };
+ await self.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'MeterValues');
+ } catch (error) {
+ logger.error(self._basicFormatLog() + ' Send MeterValues error: ' + error);
+ throw error;
+ }
+ }
+
+ sendError(messageId, err) {
+ // Check exception: only OCPP error are accepted
+ const error = err instanceof OCPPError ? err : new OCPPError(Constants.OCPP_ERROR_INTERNAL_ERROR, err.message);
+ // Send error
+ return this.sendMessage(messageId, error, Constants.OCPP_JSON_CALL_ERROR_MESSAGE);
+ }
+
sendMessage(messageId, command, messageType = Constants.OCPP_JSON_CALL_RESULT_MESSAGE, commandName = '') {
// Send a message through wsConnection
const self = this;
break;
}
// Check if wsConnection is ready
- if (this._wsConnection.readyState === WebSocket.OPEN) {
+ if (this._wsConnection && this._wsConnection.readyState === WebSocket.OPEN) {
// Yes: Send Message
this._wsConnection.send(messageToSend);
} else {
if (messageType !== Constants.OCPP_JSON_CALL_MESSAGE) {
// Yes: send Ok
resolve();
- } else if (this._wsConnection.readyState === WebSocket.OPEN) {
+ } else if (this._wsConnection && this._wsConnection.readyState === WebSocket.OPEN) {
// Send timeout in case connection is open otherwise wait for ever
// FIXME: Handle message on timeout
setTimeout(() => rejectCallback(`Timeout for message ${messageId}`), Constants.OCPP_SOCKET_TIMEOUT);
});
}
- async _basicStartMessageSequence() {
- // Start heartbeat
- this._startHeartbeat(this);
- // Build connectors
- if (!this._connectors) {
- this._connectors = {};
- const connectorsConfig = Utils.cloneJSonDocument(this._stationInfo.Connectors);
- // Determine number of customized connectors
- let lastConnector;
- for (lastConnector in connectorsConfig) {
- // Add connector 0, OCPP specification violation that for example KEBA have
- if (Utils.convertToInt(lastConnector) === 0 && Utils.convertToBoolean(this._stationInfo.useConnectorId0) &&
- connectorsConfig[lastConnector]) {
- this._connectors[lastConnector] = connectorsConfig[lastConnector];
- }
- }
- let maxConnectors = 0;
- if (Array.isArray(this._stationInfo.numberOfConnectors)) {
- // Generate some connectors
- maxConnectors = this._stationInfo.numberOfConnectors[(this._index - 1) % this._stationInfo.numberOfConnectors.length];
- } else {
- maxConnectors = this._stationInfo.numberOfConnectors;
- }
- this._addConfigurationKey('NumberOfConnectors', maxConnectors, true);
- // Generate all connectors
- for (let index = 1; index <= maxConnectors; index++) {
- const randConnectorID = Utils.convertToBoolean(this._stationInfo.randomConnectors) ? Utils.getRandomInt(lastConnector, 1) : index;
- this._connectors[index] = connectorsConfig[randConnectorID];
- }
- }
-
- for (const connector in this._connectors) {
- if (!this._connectors[connector].transactionStarted) {
- if (this._connectors[connector].bootStatus) {
- this.sendStatusNotificationWithTimeout(connector, this._connectors[connector].bootStatus);
- } else {
- this.sendStatusNotificationWithTimeout(connector, 'Available');
- }
- } else {
- this.sendStatusNotificationWithTimeout(connector, 'Charging');
- }
- }
-
- if (Utils.convertToBoolean(this._stationInfo.AutomaticTransactionGenerator.enable)) {
- if (!this._automaticTransactionGeneration) {
- this._automaticTransactionGeneration = new AutomaticTransactionGenerator(this);
- }
- if (this._automaticTransactionGeneration.timeToStop) {
- this._automaticTransactionGeneration.start();
- }
+ handleResponseBootNotification(payload) {
+ if (payload.status === 'Accepted') {
+ this._heartbeatInterval = payload.interval * 1000;
+ this._addConfigurationKey('HeartBeatInterval', Utils.convertToInt(payload.interval));
+ this._addConfigurationKey('HeartbeatInterval', Utils.convertToInt(payload.interval), false, false);
+ this._basicStartMessageSequence();
+ } else if (payload.status === 'Pending') {
+ logger.info(this._basicFormatLog() + ' Charging station pending on the central server');
+ } else {
+ logger.info(this._basicFormatLog() + ' Charging station rejected by the central server');
}
- this._statistics.start();
}
- _resetTransactionOnConnector(connectorID) {
+ _initTransactionOnConnector(connectorID) {
this._connectors[connectorID].transactionStarted = false;
this._connectors[connectorID].transactionId = null;
this._connectors[connectorID].idTag = null;
this._connectors[connectorID].lastConsumptionValue = -1;
- this._connectors[connectorID].lastSoC = -1;
- if (this._connectors[connectorID].transactionSetInterval) {
- clearInterval(this._connectors[connectorID].transactionSetInterval);
- }
}
- handleResponseBootNotification(payload) {
- if (payload.status === 'Accepted') {
- this._heartbeatInterval = payload.interval * 1000;
- this._addConfigurationKey('HeartBeatInterval', Utils.convertToInt(payload.interval));
- this._addConfigurationKey('HeartbeatInterval', Utils.convertToInt(payload.interval), false, false);
- this._basicStartMessageSequence();
- } else {
- logger.info(this._basicFormatLog() + ' Boot Notification rejected');
+ _resetTransactionOnConnector(connectorID) {
+ this._initTransactionOnConnector(connectorID);
+ if (this._connectors[connectorID].transactionSetInterval) {
+ clearInterval(this._connectors[connectorID].transactionSetInterval);
}
}
handleResponseStartTransaction(payload, requestPayload) {
if (this._connectors[requestPayload.connectorId].transactionStarted) {
- logger.debug(this._basicFormatLog() + ' Try to start a transaction on an already used connector ' + requestPayload.connectorId + ' by transaction ' + this._connectors[requestPayload.connectorId].transactionId);
+ logger.debug(this._basicFormatLog() + ' Try to start a transaction on an already used connector ' + requestPayload.connectorId + ': %s', this._connectors[requestPayload.connectorId]);
+ return;
}
let transactionConnectorId;
this._connectors[transactionConnectorId].transactionId = payload.transactionId;
this._connectors[transactionConnectorId].idTag = requestPayload.idTag;
this._connectors[transactionConnectorId].lastConsumptionValue = 0;
- this._connectors[transactionConnectorId].lastSoC = 0;
this.sendStatusNotification(requestPayload.connectorId, 'Charging');
- logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[transactionConnectorId].transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId + ' for idTag ' + requestPayload.idTag);
+ logger.info(this._basicFormatLog() + ' Transaction ' + payload.transactionId + ' STARTED on ' + this._stationInfo.name + '#' + requestPayload.connectorId + ' for idTag ' + requestPayload.idTag);
const configuredMeterValueSampleInterval = this._getConfigurationKey('MeterValueSampleInterval');
- this.startMeterValues(requestPayload.connectorId,
+ this._startMeterValues(requestPayload.connectorId,
configuredMeterValueSampleInterval ? configuredMeterValueSampleInterval.value * 1000 : 60000);
} else {
logger.error(this._basicFormatLog() + ' Starting transaction id ' + payload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status + ', idTag ' + requestPayload.idTag);
}
if (payload.idTagInfo && payload.idTagInfo.status === 'Accepted') {
this.sendStatusNotification(transactionConnectorId, 'Available');
- logger.info(this._basicFormatLog() + ' Transaction ' + this._connectors[transactionConnectorId].transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + transactionConnectorId);
+ logger.info(this._basicFormatLog() + ' Transaction ' + requestPayload.transactionId + ' STOPPED on ' + this._stationInfo.name + '#' + transactionConnectorId);
this._resetTransactionOnConnector(transactionConnectorId);
} else {
- logger.error(this._basicFormatLog() + ' Stopping transaction id ' + this._connectors[transactionConnectorId].transactionId + ' REJECTED with status ' + payload.idTagInfo.status);
+ logger.error(this._basicFormatLog() + ' Stopping transaction id ' + requestPayload.transactionId + ' REJECTED with status ' + payload.idTagInfo.status);
}
}
handleResponseStatusNotification(payload, requestPayload) {
- logger.debug(this._basicFormatLog() + ' Status notification response received: %j to status notification request: %j', payload, requestPayload);
+ logger.debug(this._basicFormatLog() + ' Status notification response received: %j to StatusNotification request: %j', payload, requestPayload);
}
handleResponseMeterValues(payload, requestPayload) {
await this.sendMessage(messageId, result, Constants.OCPP_JSON_CALL_RESULT_MESSAGE);
}
+ async handleReset(commandPayload) {
+ // Simulate charging station restart
+ setImmediate(async () => {
+ await this.stop(commandPayload.type + 'Reset');
+ await Utils.sleep(this._stationInfo.resetTime);
+ await this.start();
+ });
+ logger.info(`${this._basicFormatLog()} ${commandPayload.type} reset command received, simulating it. The station will be back online in ${this._stationInfo.resetTime}ms`);
+ return Constants.OCPP_RESPONSE_ACCEPTED;
+ }
+
_getConfigurationKey(key) {
return this._configuration.configurationKey.find((configElement) => configElement.key === key);
}
if (triggerHeartbeatRestart) {
this._heartbeatInterval = Utils.convertToInt(commandPayload.value) * 1000;
// Stop heartbeat
- if (this._heartbeatSetInterval) {
- clearInterval(this._heartbeatSetInterval);
- this._heartbeatSetInterval = null;
- }
+ this._stopHeartbeat();
// Start heartbeat
this._startHeartbeat(this);
}
logger.info(this._basicFormatLog() + ' Try to stop remotely a non existing transaction ' + commandPayload.transactionId);
return Constants.OCPP_RESPONSE_REJECTED;
}
-
- async sendStartTransaction(connectorID, idTag) {
- try {
- const payload = {
- connectorId: connectorID,
- idTag,
- meterStart: 0,
- timestamp: new Date().toISOString(),
- };
- return await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StartTransaction');
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Send start transaction error: ' + error);
- throw error;
- }
- }
- async sendStartTransactionWithTimeout(connectorID, idTag, timeout) {
- setTimeout(() => this.sendStartTransaction(connectorID, idTag), timeout);
- }
-
- async sendStopTransaction(transactionId) {
- try {
- const payload = {
- transactionId,
- meterStop: 0,
- timestamp: new Date().toISOString(),
- };
- await this.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'StopTransaction');
- } catch (error) {
- logger.error(this._basicFormatLog() + ' Send stop transaction error: ' + error);
- throw error;
- }
- }
-
- // eslint-disable-next-line class-methods-use-this
- async sendMeterValues(connectorID, interval, self, debug = false) {
- try {
- const sampledValueLcl = {
- timestamp: new Date().toISOString(),
- };
- const meterValuesClone = Utils.cloneJSonDocument(self._getConnector(connectorID).MeterValues);
- if (Array.isArray(meterValuesClone)) {
- sampledValueLcl.sampledValue = meterValuesClone;
- } else {
- sampledValueLcl.sampledValue = [meterValuesClone];
- }
- for (let index = 0; index < sampledValueLcl.sampledValue.length; index++) {
- const connector = self._connectors[connectorID];
- if (sampledValueLcl.sampledValue[index].measurand && sampledValueLcl.sampledValue[index].measurand === 'SoC') {
- sampledValueLcl.sampledValue[index].value = Utils.getRandomInt(100);
- if (sampledValueLcl.sampledValue[index].value > 100 || debug) {
- logger.error(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value: ${sampledValueLcl.sampledValue[index].value}`);
- }
- } else {
- // Persist previous value in connector
- const consumption = Utils.getRandomInt(self._stationInfo.maxPower / 3600000 * interval);
- if (connector && connector.lastConsumptionValue >= 0) {
- connector.lastConsumptionValue += consumption;
- } else {
- connector.lastConsumptionValue = 0;
- }
- const maxConsumption = self._stationInfo.maxPower * 3600 / interval;
- logger.info(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value ${connector.lastConsumptionValue}`);
- sampledValueLcl.sampledValue[index].value = connector.lastConsumptionValue;
- if (sampledValueLcl.sampledValue[index].value > maxConsumption || debug) {
- logger.error(`${self._basicFormatLog()} MeterValues measurand ${sampledValueLcl.sampledValue[index].measurand ? sampledValueLcl.sampledValue[index].measurand : 'Energy.Active.Import.Register'}: connectorID ${connectorID}, transaction ${connector.transactionId}, value: ${sampledValueLcl.sampledValue[index].value}/${maxConsumption}`);
- }
- }
- }
-
- const payload = {
- connectorId: connectorID,
- transactionId: self._connectors[connectorID].transactionId,
- meterValue: [sampledValueLcl],
- };
- await self.sendMessage(Utils.generateUUID(), payload, Constants.OCPP_JSON_CALL_MESSAGE, 'MeterValues');
- } catch (error) {
- logger.error(self._basicFormatLog() + ' Send MeterValues error: ' + error);
- }
- }
-
- async startMeterValues(connectorID, interval) {
- if (!this._connectors[connectorID].transactionStarted) {
- logger.error(`${this._basicFormatLog()} Trying to start MeterValues on connector ID ${connectorID} with no transaction started`);
- return;
- } else if (this._connectors[connectorID].transactionStarted && !this._connectors[connectorID].transactionId) {
- logger.error(`${this._basicFormatLog()} Trying to start MeterValues on connector ID ${connectorID} with no transaction id`);
- return;
- }
- this._connectors[connectorID].transactionSetInterval = setInterval(async () => {
- const sendMeterValues = performance.timerify(this.sendMeterValues);
- this._performanceObserver.observe({
- entryTypes: ['function'],
- });
- await sendMeterValues(connectorID, interval, this);
- }, interval);
- }
-
- hasAuthorizedTags() {
- return !Utils.isEmptyArray(this._authorizedTags);
- }
-
- getRandomTagId() {
- const index = Math.floor(Math.random() * this._authorizedTags.length);
- return this._authorizedTags[index];
- }
-
- _getConnector(number) {
- return this._stationInfo.Connectors[number];
- }
}
module.exports = ChargingStation;
repositories / e-mobility-charging-stations-simulator.git / blobdiff