-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 generateUUID(): string {
- return uuid();
+ return crypto.randomUUID();
+ }
+
+ public static validateUUID(uuid: string): boolean {
+ return /^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-4[0-9a-fA-F]{3}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/.test(
+ uuid
+ );
}
public static async sleep(milliSeconds: number): Promise<NodeJS.Timeout> {
return result;
}
- public static getRandomFloat(max: number, min = 0, negative = false): number {
- if (max < min || min < 0 || max < 0) {
+ public static getRandomFloat(max = Number.MAX_VALUE, min = 0, negative = false): number {
+ if (max < min || max < 0 || min < 0) {
throw new RangeError('Invalid interval');
}
const randomPositiveFloat = crypto.randomBytes(4).readUInt32LE() / 0xffffffff;
return sign * (randomPositiveFloat * (max - min) + min);
}
- public static getRandomInteger(max: number, min = 0): number {
- if (max < 0) {
+ public static getRandomInteger(max = Number.MAX_SAFE_INTEGER, min = 0): number {
+ if (max < min || max < 0 || min < 0) {
throw new RangeError('Invalid interval');
}
max = Math.floor(max);
- if (min) {
- if (max < min || min < 0) {
- throw new RangeError('Invalid interval');
- }
+ if (!Utils.isNullOrUndefined(min) && min !== 0) {
min = Math.ceil(min);
return Math.floor(Utils.secureRandom() * (max - min + 1)) + min;
}
return Math.trunc(numberValue * truncPower) / truncPower;
}
- public static getRandomFloatRounded(max: number, min = 0, scale = 2): number {
+ public static getRandomFloatRounded(max = Number.MAX_VALUE, min = 0, scale = 2): number {
if (min) {
return Utils.roundTo(Utils.getRandomFloat(max, min), scale);
}
}
public static isIterable<T>(obj: T): boolean {
- if (obj) {
- return typeof obj[Symbol.iterator] === 'function';
- }
- return false;
+ return obj ? typeof obj[Symbol.iterator] === 'function' : false;
}
public static isString(value: unknown): boolean {
}
public static isEmptyString(value: unknown): boolean {
- return Utils.isString(value) && (value as string).length === 0;
+ return Utils.isString(value) && (value as string).trim().length === 0;
}
public static isUndefined(value: unknown): boolean {
}
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 {
- if (!object) {
- return true;
+ if (!Array.isArray(object)) {
+ return false;
}
- if (Array.isArray(object) && object.length > 0) {
+ if ((object as unknown[]).length > 0) {
return false;
}
return true;
}
- public static isEmptyObject(obj: Record<string, unknown>): boolean {
- return !Object.keys(obj).length;
+ public static isEmptyObject(obj: object): boolean {
+ if (obj?.constructor !== Object) {
+ return false;
+ }
+ // Iterates over the keys of an object, if
+ // any exist, return false.
+ for (const _ in obj) {
+ return false;
+ }
+ return true;
}
public static insertAt = (str: string, subStr: string, pos: number): string =>
return delay + randomSum;
}
- /**
- * Convert websocket error code to human readable string message
- *
- * @param code websocket error code
- * @returns human readable string message
- */
- public static getWebSocketCloseEventStatusString(code: number): string {
- if (code >= 0 && code <= 999) {
- return '(Unused)';
- } else if (code >= 1016) {
- if (code <= 1999) {
- return '(For WebSocket standard)';
- } else if (code <= 2999) {
- return '(For WebSocket extensions)';
- } else if (code <= 3999) {
- return '(For libraries and frameworks)';
- } else if (code <= 4999) {
- return '(For applications)';
- }
- }
- if (!Utils.isUndefined(WebSocketCloseEventStatusString[code])) {
- return WebSocketCloseEventStatusString[code] as string;
- }
- 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;
- }
-
public static async promiseWithTimeout<T>(
promise: Promise<T>,
timeoutMs: number,
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
+ *
+ * @param code websocket error code
+ * @returns human readable string message
+ */
+ public static getWebSocketCloseEventStatusString(code: number): string {
+ if (code >= 0 && code <= 999) {
+ return '(Unused)';
+ } else if (code >= 1016) {
+ if (code <= 1999) {
+ return '(For WebSocket standard)';
+ } else if (code <= 2999) {
+ return '(For WebSocket extensions)';
+ } else if (code <= 3999) {
+ return '(For libraries and frameworks)';
+ } else if (code <= 4999) {
+ return '(For applications)';
+ }
+ }
+ if (!Utils.isUndefined(WebSocketCloseEventStatusString[code])) {
+ return WebSocketCloseEventStatusString[code] as string;
+ }
+ return '(Unknown)';
+ }
}
repositories / e-mobility-charging-stations-simulator.git / blobdiff