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MapStorage.ts
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111 lines (93 loc) · 2.62 KB
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import { injectable, inject, postConstruct } from 'inversify';
import { ServiceIdentifiers } from '../container/ServiceIdentifiers';
import { IRandomGenerator } from '../interfaces/utils/IRandomGenerator';
import { IStorage } from '../interfaces/storages/IStorage';
import { initializable } from '../decorators/Initializable';
@injectable()
export abstract class MapStorage <T> implements IStorage <T> {
/**
* @type {IRandomGenerator}
*/
protected readonly randomGenerator: IRandomGenerator;
/**
* @type {string}
*/
@initializable()
protected storageId: string;
/**
* @type {Map <string | number, T>}
*/
@initializable()
protected storage: Map <string | number, T>;
/**
* @param {IRandomGenerator} randomGenerator
*/
constructor (
@inject(ServiceIdentifiers.IRandomGenerator) randomGenerator: IRandomGenerator
) {
this.randomGenerator = randomGenerator;
}
@postConstruct()
public initialize (): void {
this.storage = new Map <string | number, T>();
this.storageId = this.randomGenerator.getRandomString(6);
}
/**
* @param {string | number} key
* @returns {T}
*/
public get (key: string | number): T {
const value: T | undefined = this.storage.get(key);
if (!value) {
throw new Error(`No value found in map storage with key \`${key}\``);
}
return value;
}
/**
* @param {T} value
* @returns {string | number | null}
*/
public getKeyOf (value: T): string | number | null {
for (const [key, storageValue] of this.storage) {
if (value === storageValue) {
return key;
}
}
return null;
}
/**
* @returns {number}
*/
public getLength (): number {
return this.storage.size;
}
/**
* @returns {Map <string | number, T>}
*/
public getStorage (): Map <string | number, T> {
return this.storage;
}
/**
* @returns {string}
*/
public getStorageId (): string {
return this.storageId;
}
/**
* @param {this} storage
* @param {boolean} mergeId
*/
public mergeWith (storage: this, mergeId: boolean = false): void {
this.storage = new Map <string | number, T>([...this.storage, ...storage.getStorage()]);
if (mergeId) {
this.storageId = storage.getStorageId();
}
}
/**
* @param {string | number} key
* @param {T} value
*/
public set (key: string | number, value: T): void {
this.storage.set(key, value);
}
}