modelling/lib/Persistent.ts

47 lines
1.2 KiB
TypeScript
Raw Normal View History

2020-05-05 10:46:30 +02:00
import { Assignable, Serializable } from './interfaces';
export abstract class Persistent implements Assignable, Serializable {
private _data: Record<string, unknown> = {};
private _properties: Record<string, string>;
public constructor (props: Record<string, string>) {
this._properties = props;
}
public assign (a: Assignable): void {
this.assign_object (a.to_object ());
}
public assign_to (a: Assignable): void {
a.assign (this);
}
public assign_object (obj: Record<string, unknown>): void {
for (const key of Object.keys (obj)) {
const prop = this._properties[key];
if (typeof prop !== 'undefined' && typeof obj[key] === prop)
this._data[key] = obj[key];
}
}
public to_object (): Record<string, unknown> {
return this._data;
}
public serialize (formatted = false): string {
if (formatted)
return JSON.stringify (this.to_object ());
return JSON.stringify (this.to_object (), null, 2);
}
public set (key: string, value: unknown): void {
const prop = this._properties[key];
if (typeof prop !== 'undefined' && typeof value === prop)
this._data[key] = value;
}
public get (key: string): unknown {
return this._data[key];
}
}