+import CommandStatistics, { CommandStatisticsData, PerfEntry } from '../types/CommandStatistics';
+import { IncomingRequestCommand, RequestCommand } from '../types/ocpp/Requests';
+
+import CircularArray from './CircularArray';
import Configuration from './Configuration';
-import Constants from './Constants';
+import { MessageType } from '../types/ocpp/MessageType';
+import { PerformanceEntry } from 'perf_hooks';
import Utils from './Utils';
import logger from './Logger';
export default class Statistics {
- private static instance: Statistics;
- private _statistics;
- private _objName: string;
-
- private constructor() {
- this._statistics = {};
- }
-
- set objName(objName: string) {
- this._objName = objName;
- }
+ private objId: string;
+ private commandsStatistics: CommandStatistics;
- static getInstance(): Statistics {
- if (!Statistics.instance) {
- Statistics.instance = new Statistics();
- }
- return Statistics.instance;
+ public constructor(objId: string) {
+ this.objId = objId;
+ this.commandsStatistics = { id: this.objId ? this.objId : 'Object id not specified', commandsStatisticsData: {} };
}
- addMessage(command: string, messageType: number): void {
+ public addMessage(command: RequestCommand | IncomingRequestCommand, messageType: MessageType): void {
switch (messageType) {
- case Constants.OCPP_JSON_CALL_MESSAGE:
- if (this._statistics[command] && this._statistics[command].countRequest) {
- this._statistics[command].countRequest++;
+ case MessageType.CALL_MESSAGE:
+ if (this.commandsStatistics.commandsStatisticsData[command] && this.commandsStatistics.commandsStatisticsData[command].countRequest) {
+ this.commandsStatistics.commandsStatisticsData[command].countRequest++;
} else {
- this._statistics[command] = {};
- this._statistics[command].countRequest = 1;
+ this.commandsStatistics.commandsStatisticsData[command] = {} as CommandStatisticsData;
+ this.commandsStatistics.commandsStatisticsData[command].countRequest = 1;
}
break;
- case Constants.OCPP_JSON_CALL_RESULT_MESSAGE:
- if (this._statistics[command]) {
- if (this._statistics[command].countResponse) {
- this._statistics[command].countResponse++;
+ case MessageType.CALL_RESULT_MESSAGE:
+ if (this.commandsStatistics.commandsStatisticsData[command]) {
+ if (this.commandsStatistics.commandsStatisticsData[command].countResponse) {
+ this.commandsStatistics.commandsStatisticsData[command].countResponse++;
} else {
- this._statistics[command].countResponse = 1;
+ this.commandsStatistics.commandsStatisticsData[command].countResponse = 1;
}
} else {
- this._statistics[command] = {};
- this._statistics[command].countResponse = 1;
+ this.commandsStatistics.commandsStatisticsData[command] = {} as CommandStatisticsData;
+ this.commandsStatistics.commandsStatisticsData[command].countResponse = 1;
}
break;
- case Constants.OCPP_JSON_CALL_ERROR_MESSAGE:
- if (this._statistics[command]) {
- if (this._statistics[command].countError) {
- this._statistics[command].countError++;
+ case MessageType.CALL_ERROR_MESSAGE:
+ if (this.commandsStatistics.commandsStatisticsData[command]) {
+ if (this.commandsStatistics.commandsStatisticsData[command].countError) {
+ this.commandsStatistics.commandsStatisticsData[command].countError++;
} else {
- this._statistics[command].countError = 1;
+ this.commandsStatistics.commandsStatisticsData[command].countError = 1;
}
} else {
- this._statistics[command] = {};
- this._statistics[command].countError = 1;
+ this.commandsStatistics.commandsStatisticsData[command] = {} as CommandStatisticsData;
+ this.commandsStatistics.commandsStatisticsData[command].countError = 1;
}
break;
default:
- logger.error(`${this._logPrefix()} Wrong message type ${messageType}`);
+ logger.error(`${this.logPrefix()} Wrong message type ${messageType}`);
break;
}
}
- addPerformanceTimer(command: string, duration: number): void {
- // Map to proper command name
- const MAPCOMMAND = {
- sendMeterValues: 'MeterValues',
- startTransaction: 'StartTransaction',
- stopTransaction: 'StopTransaction',
- };
- if (MAPCOMMAND[command]) {
- command = MAPCOMMAND[command];
- }
- // Initialize command statistics
- if (!this._statistics[command]) {
- this._statistics[command] = {};
- }
- // Update current statistics timers
- this._statistics[command].countTime = this._statistics[command].countTime ? this._statistics[command].countTime + 1 : 1;
- this._statistics[command].minTime = this._statistics[command].minTime ? (this._statistics[command].minTime > duration ? duration : this._statistics[command].minTime) : duration;
- this._statistics[command].maxTime = this._statistics[command].maxTime ? (this._statistics[command].maxTime < duration ? duration : this._statistics[command].maxTime) : duration;
- this._statistics[command].totalTime = this._statistics[command].totalTime ? this._statistics[command].totalTime + duration : duration;
- this._statistics[command].avgTime = this._statistics[command].totalTime / this._statistics[command].countTime;
+ public logPerformance(entry: PerformanceEntry, className: string): void {
+ this.addPerformanceTimer(entry.name as RequestCommand | IncomingRequestCommand, entry.duration);
+ const perfEntry: PerfEntry = {} as PerfEntry;
+ perfEntry.name = entry.name;
+ perfEntry.entryType = entry.entryType;
+ perfEntry.startTime = entry.startTime;
+ perfEntry.duration = entry.duration;
+ logger.info(`${this.logPrefix()} object ${className} method(s) performance entry: %j`, perfEntry);
}
- logPerformance(entry, className: string): void {
- this.addPerformanceTimer(entry.name, entry.duration);
- logger.info(`${this._logPrefix()} class->${className}, method->${entry.name}, duration->${entry.duration}`);
+ public start(): void {
+ this.displayInterval();
}
- _display(): void {
- logger.info(this._logPrefix() + ' %j', this._statistics);
+ private display(): void {
+ logger.info(this.logPrefix() + ' %j', this.commandsStatistics);
}
- _displayInterval(): void {
+ private displayInterval(): void {
if (Configuration.getStatisticsDisplayInterval() > 0) {
setInterval(() => {
- this._display();
+ this.display();
}, Configuration.getStatisticsDisplayInterval() * 1000);
- logger.info(this._logPrefix() + ' displayed every ' + Configuration.getStatisticsDisplayInterval() + 's');
+ logger.info(this.logPrefix() + ' displayed every ' + Utils.secondsToHHMMSS(Configuration.getStatisticsDisplayInterval()));
+ }
+ }
+
+ private median(dataSet: number[]): number {
+ if (Array.isArray(dataSet) && dataSet.length === 1) {
+ return dataSet[0];
}
+ const sortedDataSet = dataSet.slice().sort();
+ const middleIndex = Math.floor(sortedDataSet.length / 2);
+ if (sortedDataSet.length % 2) {
+ return sortedDataSet[middleIndex / 2];
+ }
+ return (sortedDataSet[(middleIndex - 1)] + sortedDataSet[middleIndex]) / 2;
}
- start(): void {
- this._displayInterval();
+ private addPerformanceTimer(command: RequestCommand | IncomingRequestCommand, duration: number): void {
+ // Map to proper command name
+ const MAPCOMMAND = {
+ sendMeterValues: 'MeterValues',
+ startTransaction: 'StartTransaction',
+ stopTransaction: 'StopTransaction',
+ };
+ if (MAPCOMMAND[command]) {
+ command = MAPCOMMAND[command] as RequestCommand | IncomingRequestCommand;
+ }
+ // Initialize command statistics
+ if (!this.commandsStatistics.commandsStatisticsData[command]) {
+ this.commandsStatistics.commandsStatisticsData[command] = {} as CommandStatisticsData;
+ }
+ // Update current statistics timers
+ this.commandsStatistics.commandsStatisticsData[command].countTimeMeasurement = this.commandsStatistics.commandsStatisticsData[command].countTimeMeasurement ? this.commandsStatistics.commandsStatisticsData[command].countTimeMeasurement + 1 : 1;
+ this.commandsStatistics.commandsStatisticsData[command].currentTimeMeasurement = duration;
+ this.commandsStatistics.commandsStatisticsData[command].minTimeMeasurement = this.commandsStatistics.commandsStatisticsData[command].minTimeMeasurement ? (this.commandsStatistics.commandsStatisticsData[command].minTimeMeasurement > duration ? duration : this.commandsStatistics.commandsStatisticsData[command].minTimeMeasurement) : duration;
+ this.commandsStatistics.commandsStatisticsData[command].maxTimeMeasurement = this.commandsStatistics.commandsStatisticsData[command].maxTimeMeasurement ? (this.commandsStatistics.commandsStatisticsData[command].maxTimeMeasurement < duration ? duration : this.commandsStatistics.commandsStatisticsData[command].maxTimeMeasurement) : duration;
+ this.commandsStatistics.commandsStatisticsData[command].totalTimeMeasurement = this.commandsStatistics.commandsStatisticsData[command].totalTimeMeasurement ? this.commandsStatistics.commandsStatisticsData[command].totalTimeMeasurement + duration : duration;
+ this.commandsStatistics.commandsStatisticsData[command].avgTimeMeasurement = this.commandsStatistics.commandsStatisticsData[command].totalTimeMeasurement / this.commandsStatistics.commandsStatisticsData[command].countTimeMeasurement;
+ Array.isArray(this.commandsStatistics.commandsStatisticsData[command].timeMeasurementSeries) ? this.commandsStatistics.commandsStatisticsData[command].timeMeasurementSeries.push(duration) : this.commandsStatistics.commandsStatisticsData[command].timeMeasurementSeries = [duration] as CircularArray<number>;
+ this.commandsStatistics.commandsStatisticsData[command].medTimeMeasurement = this.median(this.commandsStatistics.commandsStatisticsData[command].timeMeasurementSeries);
}
- private _logPrefix(): string {
- return Utils.logPrefix(` ${this._objName} Statistics:`);
+ private logPrefix(): string {
+ return Utils.logPrefix(` ${this.objId} Statistics:`);
}
}