| 1 | import Configuration from './Configuration'; |
| 2 | import Constants from './Constants'; |
| 3 | import Utils from './Utils'; |
| 4 | import logger from './Logger'; |
| 5 | |
| 6 | export default class Statistics { |
| 7 | private static instance: Statistics; |
| 8 | private _statistics; |
| 9 | private _objName: string; |
| 10 | |
| 11 | private constructor() { |
| 12 | this._statistics = {}; |
| 13 | } |
| 14 | |
| 15 | set objName(objName: string) { |
| 16 | this._objName = objName; |
| 17 | } |
| 18 | |
| 19 | static getInstance(): Statistics { |
| 20 | if (!Statistics.instance) { |
| 21 | Statistics.instance = new Statistics(); |
| 22 | } |
| 23 | return Statistics.instance; |
| 24 | } |
| 25 | |
| 26 | addMessage(command: string, messageType: number): void { |
| 27 | switch (messageType) { |
| 28 | case Constants.OCPP_JSON_CALL_MESSAGE: |
| 29 | if (this._statistics[command] && this._statistics[command].countRequest) { |
| 30 | this._statistics[command].countRequest++; |
| 31 | } else { |
| 32 | this._statistics[command] = {}; |
| 33 | this._statistics[command].countRequest = 1; |
| 34 | } |
| 35 | break; |
| 36 | case Constants.OCPP_JSON_CALL_RESULT_MESSAGE: |
| 37 | if (this._statistics[command]) { |
| 38 | if (this._statistics[command].countResponse) { |
| 39 | this._statistics[command].countResponse++; |
| 40 | } else { |
| 41 | this._statistics[command].countResponse = 1; |
| 42 | } |
| 43 | } else { |
| 44 | this._statistics[command] = {}; |
| 45 | this._statistics[command].countResponse = 1; |
| 46 | } |
| 47 | break; |
| 48 | case Constants.OCPP_JSON_CALL_ERROR_MESSAGE: |
| 49 | if (this._statistics[command]) { |
| 50 | if (this._statistics[command].countError) { |
| 51 | this._statistics[command].countError++; |
| 52 | } else { |
| 53 | this._statistics[command].countError = 1; |
| 54 | } |
| 55 | } else { |
| 56 | this._statistics[command] = {}; |
| 57 | this._statistics[command].countError = 1; |
| 58 | } |
| 59 | break; |
| 60 | default: |
| 61 | logger.error(`${this._logPrefix()} Wrong message type ${messageType}`); |
| 62 | break; |
| 63 | } |
| 64 | } |
| 65 | |
| 66 | addPerformanceTimer(command: string, duration: number): void { |
| 67 | // Map to proper command name |
| 68 | const MAPCOMMAND = { |
| 69 | sendMeterValues: 'MeterValues', |
| 70 | startTransaction: 'StartTransaction', |
| 71 | stopTransaction: 'StopTransaction', |
| 72 | }; |
| 73 | if (MAPCOMMAND[command]) { |
| 74 | command = MAPCOMMAND[command]; |
| 75 | } |
| 76 | // Initialize command statistics |
| 77 | if (!this._statistics[command]) { |
| 78 | this._statistics[command] = {}; |
| 79 | } |
| 80 | // Update current statistics timers |
| 81 | this._statistics[command].countTime = this._statistics[command].countTime ? this._statistics[command].countTime + 1 : 1; |
| 82 | this._statistics[command].minTime = this._statistics[command].minTime ? (this._statistics[command].minTime > duration ? duration : this._statistics[command].minTime) : duration; |
| 83 | this._statistics[command].maxTime = this._statistics[command].maxTime ? (this._statistics[command].maxTime < duration ? duration : this._statistics[command].maxTime) : duration; |
| 84 | this._statistics[command].totalTime = this._statistics[command].totalTime ? this._statistics[command].totalTime + duration : duration; |
| 85 | this._statistics[command].avgTime = this._statistics[command].totalTime / this._statistics[command].countTime; |
| 86 | } |
| 87 | |
| 88 | logPerformance(entry, className: string): void { |
| 89 | this.addPerformanceTimer(entry.name, entry.duration); |
| 90 | logger.info(`${this._logPrefix()} class->${className}, method->${entry.name}, duration->${entry.duration}`); |
| 91 | } |
| 92 | |
| 93 | _display(): void { |
| 94 | logger.info(this._logPrefix() + ' %j', this._statistics); |
| 95 | } |
| 96 | |
| 97 | _displayInterval(): void { |
| 98 | if (Configuration.getStatisticsDisplayInterval() > 0) { |
| 99 | setInterval(() => { |
| 100 | this._display(); |
| 101 | }, Configuration.getStatisticsDisplayInterval() * 1000); |
| 102 | logger.info(this._logPrefix() + ' displayed every ' + Configuration.getStatisticsDisplayInterval() + 's'); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | start(): void { |
| 107 | this._displayInterval(); |
| 108 | } |
| 109 | |
| 110 | private _logPrefix(): string { |
| 111 | return Utils.logPrefix(` ${this._objName} Statistics:`); |
| 112 | } |
| 113 | } |