-// Partial Copyright Jerome Benoit. 2021. All Rights Reserved.
+// Partial Copyright Jerome Benoit. 2021-2023. All Rights Reserved.
-import { PerformanceEntry, PerformanceObserver, performance } from 'perf_hooks';
-import type { URL } from 'url';
-import { parentPort } from 'worker_threads';
+import { type PerformanceEntry, PerformanceObserver, performance } from 'node:perf_hooks';
+import type { URL } from 'node:url';
+import { parentPort } from 'node:worker_threads';
-import { MessageChannelUtils } from '../charging-station/MessageChannelUtils';
-import { MessageType } from '../types/ocpp/MessageType';
-import type { IncomingRequestCommand, RequestCommand } from '../types/ocpp/Requests';
-import type { Statistics, StatisticsData, TimeSeries } from '../types/Statistics';
-import { CircularArray, DEFAULT_CIRCULAR_ARRAY_SIZE } from '../utils/CircularArray';
-import Configuration from '../utils/Configuration';
-import logger from '../utils/Logger';
-import Utils from '../utils/Utils';
+import { MessageChannelUtils } from '../charging-station';
+import {
+ type IncomingRequestCommand,
+ MessageType,
+ type RequestCommand,
+ type Statistics,
+ type TimeSeries,
+} from '../types';
+import { CircularArray, Configuration, Constants, Utils, logger } from '../utils';
-export default class PerformanceStatistics {
+export class PerformanceStatistics {
private static readonly instances: Map<string, PerformanceStatistics> = new Map<
string,
PerformanceStatistics
private readonly objId: string;
private readonly objName: string;
- private performanceObserver: PerformanceObserver;
+ private performanceObserver!: PerformanceObserver;
private readonly statistics: Statistics;
- private displayInterval: NodeJS.Timeout;
+ private displayInterval!: NodeJS.Timeout;
private constructor(objId: string, objName: string, uri: URL) {
this.objId = objId;
name: this.objName ?? 'Object name not specified',
uri: uri.toString(),
createdAt: new Date(),
- statisticsData: new Map<string, Partial<StatisticsData>>(),
+ statisticsData: new Map(),
};
}
}
public static beginMeasure(id: string): string {
- const markId = `${id.charAt(0).toUpperCase() + id.slice(1)}~${Utils.generateUUID()}`;
+ const markId = `${id.charAt(0).toUpperCase()}${id.slice(1)}~${Utils.generateUUID()}`;
performance.mark(markId);
return markId;
}
private initializePerformanceObserver(): void {
this.performanceObserver = new PerformanceObserver((performanceObserverList) => {
const lastPerformanceEntry = performanceObserverList.getEntries()[0];
+ // logger.debug(
+ // `${this.logPrefix()} '${lastPerformanceEntry.name}' performance entry: %j`,
+ // lastPerformanceEntry
+ // );
this.addPerformanceEntryToStatistics(lastPerformanceEntry);
- logger.debug(
- `${this.logPrefix()} '${lastPerformanceEntry.name}' performance entry: %j`,
- lastPerformanceEntry
- );
});
this.performanceObserver.observe({ entryTypes: ['measure'] });
}
this.logStatistics();
}, Configuration.getLogStatisticsInterval() * 1000);
logger.info(
- this.logPrefix() +
- ' logged every ' +
- Utils.formatDurationSeconds(Configuration.getLogStatisticsInterval())
+ `${this.logPrefix()} logged every ${Utils.formatDurationSeconds(
+ Configuration.getLogStatisticsInterval()
+ )}`
);
} else {
logger.info(
- this.logPrefix() +
- ' log interval is set to ' +
- Configuration.getLogStatisticsInterval().toString() +
- '. Not logging statistics'
+ `${this.logPrefix()} log interval is set to ${Configuration.getLogStatisticsInterval()?.toString()}. Not logging statistics`
);
}
}
this.statistics.statisticsData.get(entryName).avgTimeMeasurement =
this.statistics.statisticsData.get(entryName).totalTimeMeasurement /
this.statistics.statisticsData.get(entryName).countTimeMeasurement;
- Array.isArray(this.statistics.statisticsData.get(entryName).timeMeasurementSeries) === true
+ this.statistics.statisticsData.get(entryName)?.timeMeasurementSeries instanceof CircularArray
? this.statistics.statisticsData
.get(entryName)
- .timeMeasurementSeries.push({ timestamp: entry.startTime, value: entry.duration })
+ ?.timeMeasurementSeries?.push({ timestamp: entry.startTime, value: entry.duration })
: (this.statistics.statisticsData.get(entryName).timeMeasurementSeries =
- new CircularArray<TimeSeries>(DEFAULT_CIRCULAR_ARRAY_SIZE, {
+ new CircularArray<TimeSeries>(Constants.DEFAULT_CIRCULAR_BUFFER_CAPACITY, {
timestamp: entry.startTime,
value: entry.duration,
}));
)
);
if (Configuration.getPerformanceStorage().enabled) {
- parentPort.postMessage(
+ parentPort?.postMessage(
MessageChannelUtils.buildPerformanceStatisticsMessage(this.statistics)
);
}
return timeSeries.map((timeSeriesItem) => timeSeriesItem.value);
}
- private logPrefix(): string {
+ private logPrefix = (): string => {
return Utils.logPrefix(` ${this.objName} | Performance statistics`);
- }
+ };
}