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Commit c8b07d2

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author
Badacadabra
committed
Add all creational patterns in TypeScript
1 parent 08a2e69 commit c8b07d2

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5 files changed

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5 files changed

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// ==============================
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// ABSTRACT GNU/LINUX DISTRO
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// ==============================
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abstract class LinuxDistro {
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protected name: string;
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constructor(name: string) {
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this.name = name;
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}
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public bootLinux(): string {
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return `${this.name} is booting...`;
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}
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}
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// ==============================
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// ABSTRACT MAC OS RELEASE
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// ==============================
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class MacRelease {
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protected name: string;
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constructor(name: string) {
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this.name = name;
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}
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public bootMac(): string {
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return `${this.name} is booting...`;
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}
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}
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// ==============================
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// ABSTRACT WINDOWS VERSION
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// ==============================
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class WindowsVersion {
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protected name: string;
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constructor(name: string) {
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this.name = name;
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}
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public bootWindows(): string {
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return `${this.name} is booting...`;
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}
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}
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// ==============================
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// CONCRETE GNU/LINUX DISTROS
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// ==============================
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class Debian extends LinuxDistro {
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constructor() {
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super("Debian");
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}
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}
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class RedHat extends LinuxDistro {
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constructor() {
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super("RedHat");
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}
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}
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// ==============================
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// CONCRETE MAC OS RELEASES
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// ==============================
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class OS9 extends MacRelease {
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constructor() {
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super("Mac OS 9");
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}
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}
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class OSX extends MacRelease {
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constructor() {
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super("Mac OS X");
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}
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}
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// ==============================
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// CONCRETE WINDOWS VERSIONS
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// ==============================
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class XP extends WindowsVersion {
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constructor() {
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super("Windows XP");
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}
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}
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class Vista extends WindowsVersion {
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constructor() {
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super("Windows Vista");
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}
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}
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// ==============================
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// ABSTRACT FACTORY OF OPERATING SYSTEMS
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// ==============================
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abstract class OSFactory {
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public static readonly LINUX: number = 0;
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public static readonly MAC: number = 1;
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public static readonly WINDOWS: number = 2;
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public static getOSFactory(id: number): OSFactory {
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switch (id) {
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case this.LINUX:
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return new LinuxFactory();
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case this.MAC:
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return new MacFactory();
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case this.WINDOWS:
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return new WindowsFactory();
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default:
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throw new Error("The factory you are looking for has not been found");
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}
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}
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public abstract getLinuxDistro(id: number): LinuxDistro | never;
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public abstract getMacRelease(id: number): MacRelease | never;
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public abstract getWindowsVersion(id: number): WindowsVersion | never;
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}
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// ==============================
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// CONCRETE GNU/LINUX FACTORY
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// ==============================
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class LinuxFactory extends OSFactory {
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public static readonly DEBIAN: number = 0;
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public static readonly REDHAT: number = 1;
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public getLinuxDistro(id: number): LinuxDistro {
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switch (id) {
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case LinuxFactory.DEBIAN:
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return new Debian();
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case LinuxFactory.REDHAT:
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return new RedHat();
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default:
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throw new Error("The Linux distribution you are looking for has not been found");
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}
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}
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public getMacRelease(id: number): never {
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throw new Error("If you want a Mac release, use the Mac factory.");
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}
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public getWindowsVersion(id: number): never {
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throw new Error("If you want a Windows version, use the Windows factory.");
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}
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}
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// ==============================
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// CONCRETE MAC OS FACTORY
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// ==============================
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class MacFactory extends OSFactory {
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public static readonly OS9: number = 0;
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public static readonly OSX: number = 1;
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public getMacRelease(id: number): MacRelease {
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switch (id) {
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case MacFactory.OS9:
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return new OS9();
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case MacFactory.OSX:
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return new OSX();
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default:
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throw new Error("The Mac release you are looking for has not been found");
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}
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}
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public getLinuxDistro(id: number): never {
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throw new Error("If you want a Linux distribution, use the Linux factory.");
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}
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public getWindowsVersion(id: number): never {
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throw new Error("If you want a Windows version, use the Windows factory.");
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}
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}
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// ==============================
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// CONCRETE WINDOWS FACTORY
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// ==============================
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class WindowsFactory extends OSFactory {
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public static readonly XP: number = 0;
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public static readonly VISTA: number = 1;
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public getWindowsVersion(id: number): WindowsVersion {
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switch (id) {
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case WindowsFactory.XP:
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return new XP();
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case WindowsFactory.VISTA:
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return new Vista();
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default:
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throw new Error("The Windows version you are looking for has not been found");
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}
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}
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public getLinuxDistro(id: number): never {
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throw new Error("If you want a Linux distribution, use the Linux factory.");
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}
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public getMacRelease(id: number): never {
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throw new Error("If you want a Mac release, use the Mac factory.");
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}
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}
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// ==============================
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// CLIENT CODE
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// ==============================
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// We can get a concrete factory from the abstract factory
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let linuxFactory: OSFactory = OSFactory.getOSFactory(OSFactory.LINUX),
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macFactory: OSFactory = OSFactory.getOSFactory(OSFactory.MAC),
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windowsFactory: OSFactory = OSFactory.getOSFactory(OSFactory.WINDOWS);
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// Then we can get real objects from these concrete factories
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let debian: LinuxDistro = linuxFactory.getLinuxDistro(LinuxFactory.DEBIAN),
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osx: MacRelease = macFactory.getMacRelease(MacFactory.OSX),
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xp: WindowsVersion = windowsFactory.getWindowsVersion(WindowsFactory.XP);
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console.log(debian.bootLinux()); // Debian is booting...
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console.log(osx.bootMac()); // Mac OS X is booting...
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console.log(xp.bootWindows()); // Windows XP is booting...
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// ==============================
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// PC (PRODUCT)
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// ==============================
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class PC {
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private motherboard: string;
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private cpu: string;
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private ram: string;
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private ssd: string;
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private nic: string;
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private powerSupply: string;
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private caseDesign: string;
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public setMotherboard(motherboard): void {
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this.motherboard = motherboard;
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}
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public setCpu(cpu): void {
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this.cpu = cpu;
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}
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public setRam(ram): void {
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this.ram = ram;
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}
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public setSsd(ssd): void {
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this.ssd = ssd;
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}
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public setNic(nic): void {
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this.nic = nic;
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}
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public setPowerSupply(powerSupply): void {
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this.powerSupply = powerSupply;
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}
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public setCaseDesign(caseDesign): void {
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this.caseDesign = caseDesign;
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}
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public toString(): string {
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return `Motherboard: ${this.motherboard}
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CPU: ${this.cpu}
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RAM: ${this.ram}
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SSD: ${this.ssd}
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NIC: ${this.nic}
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Power Supply: ${this.powerSupply}
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Case design: ${this.caseDesign}`
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}
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}
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// ==============================
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// ABSTRACT PC BUILDER
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// ==============================
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interface Workforce {
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assemblePC(): string;
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setMotherboard(motherboard: string): void;
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setCpu(cpu: string): void;
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setRam(ram: string): void;
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setSsd(ssd: string): void;
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setNic(nic: string): void;
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setPowerSupply(powerSupply: string): void;
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setCaseDesign(caseDesign: string): void;
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}
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// ==============================
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// CONCRETE PC BUILDER
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// ==============================
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class Geek implements Workforce {
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private pc: PC = new PC();
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public assemblePC(): string {
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return this.pc.toString();
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}
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public setMotherboard(motherboard: string): void {
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this.pc.setMotherboard(motherboard);
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}
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public setCpu(cpu: string): void {
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this.pc.setCpu(cpu);
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}
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public setRam(ram: string): void {
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this.pc.setRam(ram);
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}
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public setSsd(ssd: string): void {
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this.pc.setSsd(ssd);
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}
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public setNic(nic: string): void {
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this.pc.setNic(nic);
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}
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public setPowerSupply(powerSupply: string): void {
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this.pc.setPowerSupply(powerSupply);
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}
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public setCaseDesign(caseDesign: string): void {
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this.pc.setCaseDesign(caseDesign);
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}
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}
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// ==============================
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// MANUFACTURER (DIRECTOR)
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// ==============================
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class Manufacturer {
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public static manufacture(builder: Workforce): string {
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builder.setMotherboard("Asus Z170-A ATX LGA1151");
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builder.setCpu("Intel Core i7 6950X");
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builder.setRam("HyperX Fury 8 GB");
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builder.setSsd("SanDisk SSD PLUS 240 GB");
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builder.setNic("D-Link DGE-528T");
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builder.setPowerSupply("Corsair RM750x");
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builder.setCaseDesign("Cooler Master HAF X");
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return builder.assemblePC();
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}
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}
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// ==============================
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// CLIENT CODE
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// ==============================
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let geek: Geek = new Geek(),
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pc: string = Manufacturer.manufacture(geek);
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console.log(pc);

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