-import Configuration from './Configuration';
-import { WebSocketCloseEventStatusString } from '../types/WebSocket';
-import { WorkerProcessType } from '../types/Worker';
import crypto from 'crypto';
+
import { v4 as uuid } from 'uuid';
+import { WebSocketCloseEventStatusString } from '../types/WebSocket';
+
export default class Utils {
+ private constructor() {
+ // This is intentional
+ }
+
public static logPrefix(prefixString = ''): string {
return new Date().toLocaleString() + prefixString;
}
}
public static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> {
- return new Promise((resolve) => setTimeout(resolve, milliSeconds));
+ return new Promise((resolve) => setTimeout(resolve as () => void, milliSeconds));
}
public static formatDurationMilliSeconds(duration: number): string {
duration = Utils.convertToInt(duration);
const hours = Math.floor(duration / (3600 * 1000));
- const minutes = Math.floor((duration / 1000 - (hours * 3600)) / 60);
- const seconds = duration / 1000 - (hours * 3600) - (minutes * 60);
- let hoursStr: string = hours.toString();
- let minutesStr: string = minutes.toString();
- let secondsStr: string = seconds.toString();
+ const minutes = Math.floor((duration / 1000 - hours * 3600) / 60);
+ const seconds = duration / 1000 - hours * 3600 - minutes * 60;
+ let hoursStr = hours.toString();
+ let minutesStr = minutes.toString();
+ let secondsStr = seconds.toString();
if (hours < 10) {
hoursStr = '0' + hours.toString();
minutesStr = '0' + minutes.toString();
}
if (seconds < 10) {
- secondsStr = ('0' + seconds.toString()).substring(0, 6);
+ secondsStr = '0' + seconds.toString();
}
- return hoursStr + ':' + minutesStr + ':' + secondsStr;
+ return hoursStr + ':' + minutesStr + ':' + secondsStr.substring(0, 6);
}
public static formatDurationSeconds(duration: number): string {
return Utils.formatDurationMilliSeconds(duration * 1000);
}
- public static removeExtraEmptyLines(tab: string[]): void {
- // Start from the end
- for (let i = tab.length - 1; i > 0; i--) {
- // Two consecutive empty lines?
- if (tab[i].length === 0 && tab[i - 1].length === 0) {
- // Remove the last one
- tab.splice(i, 1);
- }
- // Check last line
- if (i === 1 && tab[i - 1].length === 0) {
- // Remove the first one
- tab.splice(i - 1, 1);
- }
- }
- }
-
public static convertToDate(value: unknown): Date {
// Check
if (!value) {
result = value;
} else {
// Convert
- result = (value === 'true');
+ result = value === 'true';
}
}
return result;
}
public static getRandomFloat(max: number, min = 0, negative = false): number {
+ if (max < min || min < 0 || max < 0) {
+ throw new RangeError('Invalid interval');
+ }
const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff;
- const sign = (negative && randomPositiveFloat < 0.5) ? 1 : -1;
+ const sign = negative && randomPositiveFloat < 0.5 ? -1 : 1;
return sign * (randomPositiveFloat * (max - min) + min);
}
- public static getRandomInt(max: number, min = 0): number {
+ public static getRandomInteger(max: number, min = 0): number {
+ if (max < 0) {
+ throw new RangeError('Invalid interval');
+ }
max = Math.floor(max);
if (min) {
+ if (max < min || min < 0) {
+ throw new RangeError('Invalid interval');
+ }
min = Math.ceil(min);
return Math.floor(Utils.secureRandom() * (max - min + 1)) + min;
}
return Utils.roundTo(Utils.getRandomFloat(max), scale);
}
- public static getRandomFloatFluctuatedRounded(staticValue: number, fluctuationPercent: number, scale = 2): number {
+ public static getRandomFloatFluctuatedRounded(
+ staticValue: number,
+ fluctuationPercent: number,
+ scale = 2
+ ): number {
if (fluctuationPercent === 0) {
return Utils.roundTo(staticValue, scale);
}
const fluctuationRatio = fluctuationPercent / 100;
- return Utils.getRandomFloatRounded(staticValue * (1 + fluctuationRatio), staticValue * (1 - fluctuationRatio), scale);
+ return Utils.getRandomFloatRounded(
+ staticValue * (1 + fluctuationRatio),
+ staticValue * (1 - fluctuationRatio),
+ scale
+ );
}
public static cloneObject<T>(object: T): T {
}
public static isIterable<T>(obj: T): boolean {
- if (obj) {
- return typeof obj[Symbol.iterator] === 'function';
- }
- return false;
- }
-
- public static isEmptyJSon(document: unknown): boolean {
- // Empty?
- if (!document) {
- return true;
- }
- // Check type
- if (typeof document !== 'object') {
- return true;
- }
- // Check
- return Object.keys(document).length === 0;
+ return obj ? typeof obj[Symbol.iterator] === 'function' : false;
}
public static isString(value: unknown): boolean {
return typeof value === 'string';
}
+ public static isEmptyString(value: unknown): boolean {
+ return Utils.isString(value) && (value as string).length === 0;
+ }
+
public static isUndefined(value: unknown): boolean {
return typeof value === 'undefined';
}
public static isNullOrUndefined(value: unknown): boolean {
- // eslint-disable-next-line no-eq-null, eqeqeq
- if (value == null) {
- return true;
- }
- return false;
+ // eslint-disable-next-line eqeqeq, no-eq-null
+ return value == null ? true : false;
}
public static isEmptyArray(object: unknown): boolean {
return true;
}
- public static isEmptyObject(obj: Record<string, unknown>): boolean {
+ public static isEmptyObject(obj: object): boolean {
return !Object.keys(obj).length;
}
- public static insertAt = (str: string, subStr: string, pos: number): string => `${str.slice(0, pos)}${subStr}${str.slice(pos)}`;
+ public static insertAt = (str: string, subStr: string, pos: number): string =>
+ `${str.slice(0, pos)}${subStr}${str.slice(pos)}`;
/**
* @param [retryNumber=0]
return delay + randomSum;
}
+ public static async promiseWithTimeout<T>(
+ promise: Promise<T>,
+ timeoutMs: number,
+ timeoutError: Error,
+ timeoutCallback: () => void = () => {
+ /* This is intentional */
+ }
+ ): Promise<T> {
+ // Create a timeout promise that rejects in timeout milliseconds
+ const timeoutPromise = new Promise<never>((_, reject) => {
+ setTimeout(() => {
+ timeoutCallback();
+ reject(timeoutError);
+ }, timeoutMs);
+ });
+
+ // Returns a race between timeout promise and the passed promise
+ return Promise.race<T>([promise, timeoutPromise]);
+ }
+
+ /**
+ * Generate a cryptographically secure random number in the [0,1[ range
+ *
+ * @returns
+ */
+ public static secureRandom(): number {
+ return crypto.randomBytes(4).readUInt32LE() / 0x100000000;
+ }
+
+ public static JSONStringifyWithMapSupport(
+ obj: Record<string, unknown> | Record<string, unknown>[],
+ space?: number
+ ): string {
+ return JSON.stringify(
+ obj,
+ (key, value: Record<string, unknown>) => {
+ if (value instanceof Map) {
+ return {
+ dataType: 'Map',
+ value: [...value],
+ };
+ }
+ return value;
+ },
+ space
+ );
+ }
+
/**
* Convert websocket error code to human readable string message
*
}
return '(Unknown)';
}
-
- public static workerPoolInUse(): boolean {
- return [WorkerProcessType.DYNAMIC_POOL, WorkerProcessType.STATIC_POOL].includes(Configuration.getWorkerProcess());
- }
-
- public static workerDynamicPoolInUse(): boolean {
- return Configuration.getWorkerProcess() === WorkerProcessType.DYNAMIC_POOL;
- }
-
- /**
- * Generate a cryptographically secure random number in the [0,1[ range
- *
- * @returns
- */
- public static secureRandom(): number {
- return crypto.randomBytes(4).readUInt32LE() / 0x100000000;
- }
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff