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Commit 1752dcb

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author
Badacadabra
committed
Add all creational patterns in CoffeeScript
1 parent f1a89f3 commit 1752dcb

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"use strict"
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# ==============================
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# ABSTRACT GNU/LINUX DISTRO
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# ==============================
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class LinuxDistro
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constructor: (name) ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is LinuxDistro
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@name = name
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bootLinux: ->
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"#{@name} is booting..."
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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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constructor: (name) ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is MacRelease
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@name = name
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bootMac: ->
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"#{@name} is booting..."
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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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constructor: (name) ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is WindowsVersion
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@name = name
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bootWindows: ->
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"#{@name} is booting..."
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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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class RedHat extends LinuxDistro
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constructor: ->
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super "RedHat"
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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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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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# 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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class Vista extends WindowsVersion
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constructor: ->
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super "Windows Vista"
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# ==============================
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# ABSTRACT FACTORY OF OPERATING SYSTEMS
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# ==============================
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class OSFactory
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@LINUX: 0
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@MAC: 1
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@WINDOWS: 2
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constructor: ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is OSFactory
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@getOSFactory: (id) ->
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switch id
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when @LINUX then new LinuxFactory
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when @MAC then new MacFactory
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when @WINDOWS then new WindowsFactory
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else throw new Error "The factory you are looking for has not been found."
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getLinuxDistro: (id) ->
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throw new Error "You cannot call an abstract method!"
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getMacRelease: (id) ->
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throw new Error "You cannot call an abstract method!"
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getWindowsVersion: (id) ->
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throw new Error "You cannot call an abstract method!"
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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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@DEBIAN: 0
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@REDHAT: 1
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getLinuxDistro: (id) ->
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switch id
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when LinuxFactory.DEBIAN then new Debian
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when LinuxFactory.REDHAT then new RedHat
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else throw new Error "The Linux distribution you are looking for has not been found."
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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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@OS9: 0
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@OSX: 1
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getMacRelease: (id) ->
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switch id
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when MacFactory.OS9 then new OS9
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when MacFactory.OSX then new OSX
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else throw new Error "The Mac release you are looking for has not been found."
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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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@XP: 0
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@VISTA: 1
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getWindowsVersion: (id) ->
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switch id
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when WindowsFactory.XP then new XP
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when WindowsFactory.VISTA then new Vista
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else throw new Error "The Windows version you are looking for has not been found."
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# ==============================
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# CLIENT CODE
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# ==============================
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# We can get concrete factories from the abstract factory
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linuxFactory = OSFactory.getOSFactory OSFactory.LINUX
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macFactory = OSFactory.getOSFactory OSFactory.MAC
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windowsFactory = OSFactory.getOSFactory OSFactory.WINDOWS
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# Then we can get real objects from these concrete factories
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debian = linuxFactory.getLinuxDistro LinuxFactory.DEBIAN
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osx = macFactory.getMacRelease MacFactory.OSX
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xp = 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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"use strict"
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# ==============================
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# PC (PRODUCT)
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# ==============================
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class PC
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constructor: ->
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@._motherboard = ""
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@._cpu = ""
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@._ram = ""
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@._ssd = ""
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@._nic = ""
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@._powerSupply = ""
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@._caseDesign = ""
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setMotherboard: (part) ->
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@._motherboard = part
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setCpu: (part) ->
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@._cpu = part
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setRam: (part) ->
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@._ram = part
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setSsd: (part) ->
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@._ssd = part
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setNic: (part) ->
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@._nic = part
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setPowerSupply: (part) ->
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@._powerSupply = part
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setCaseDesign: (part) ->
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@._caseDesign = part
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toString: (part) ->
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"Motherboard: #{@._motherboard}\n
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CPU: #{@._cpu}\n
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RAM: #{@._ram}\n
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SSD: #{@._ssd}\n
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NIC: #{@._nic}\n
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Power supply: #{@._powerSupply}\n
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Case design: #{@._caseDesign}"
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# ==============================
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# ABSTRACT PC BUILDER
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# ==============================
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class Workforce
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construct: ->
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throw new Error "You cannot instantiate an abstract class!"
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assemblePC: ->
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throw new Error "You cannot call an abstract method!"
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setMotherboard: (motherboard) ->
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throw new Error "You cannot call an abstract method!"
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setCpu: (cpu) ->
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throw new Error "You cannot call an abstract method!"
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setRam: (ram) ->
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throw new Error "You cannot call an abstract method!"
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setSsd: (ssd) ->
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throw new Error "You cannot call an abstract method!"
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setNic: (nic) ->
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throw new Error "You cannot call an abstract method!"
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setPowerSupply: (powerSupply) ->
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throw new Error "You cannot call an abstract method!"
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setCaseDesign: (caseDesign) ->
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throw new Error "You cannot call an abstract method!"
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# ==============================
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# CONCRETE PC BUILDER
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# ==============================
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class Geek extends Workforce
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constructor: ->
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@._pc = new PC
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assemblePC: ->
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@._pc.toString()
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setMotherboard: (motherboard) ->
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@._pc.setMotherboard motherboard
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setCpu: (cpu) ->
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@._pc.setCpu cpu
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setRam: (ram) ->
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@._pc.setRam ram
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setSsd: (ssd) ->
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@._pc.setSsd ssd
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setNic: (nic) ->
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@._pc.setNic nic
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setPowerSupply: (powerSupply) ->
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@._pc.setPowerSupply powerSupply
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setCaseDesign: (caseDesign) ->
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@._pc.setCaseDesign caseDesign
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# ==============================
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# MANUFACTURER (DIRECTOR)
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# ==============================
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class Manufacturer
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@manufacture = (builder) ->
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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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builder.assemblePC()
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# ==============================
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# CLIENT CODE
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# ==============================
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geek = new Geek
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pc = Manufacturer.manufacture geek
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console.log pc
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"use strict"
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# ==============================
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# ABSTRACT GNU/LINUX DISTRO
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# ==============================
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class LinuxDistro
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constructor: (name) ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is LinuxDistro
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@name = name
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boot: ->
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"#{@name} is booting..."
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# ==============================
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# CONCRETE GNU/LINUX DISTROS
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# ==============================
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# Let's say that each instance of a Linux distro will have the name of its constructor...
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class Debian extends LinuxDistro
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constructor: ->
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super "Debian"
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class RedHat extends LinuxDistro
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constructor: ->
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super "RedHat"
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class Slackware extends LinuxDistro
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constructor: ->
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super "Slackware"
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# ==============================
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# FACTORY OF GNU/LINUX DISTROS
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# ==============================
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class LinuxDistrosFactory
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@DEBIAN: 0
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@REDHAT: 1
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@SLACKWARE: 2
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@getLinuxDistro: (id) ->
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switch id
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when @DEBIAN then new Debian
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when @REDHAT then new RedHat
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when @SLACKWARE then new Slackware
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else throw new Error "The Linux distribution you are looking for has not been found"
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# ==============================
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# CLIENT CODE
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# ==============================
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# Creation of our objects through the factory
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debian = LinuxDistrosFactory.getLinuxDistro LinuxDistrosFactory.DEBIAN
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redhat = LinuxDistrosFactory.getLinuxDistro LinuxDistrosFactory.REDHAT
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slackware = LinuxDistrosFactory.getLinuxDistro LinuxDistrosFactory.SLACKWARE
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console.log debian.boot(); # Debian is booting...
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console.log redhat.boot(); # RedHat is booting...
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console.log slackware.boot(); # Slackware is booting...
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"use strict"
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# ==============================
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# ABSTRACT PROTOTYPE
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# ==============================
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class PaperSheet
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constructor: ->
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throw new Error "You cannot instantiate an abstract class!" if @constructor is PaperSheet
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photocopy: ->
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throw new Error "You cannot call an abstract method!"
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# ==============================
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# CONCRETE PROTOTYPE
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# ==============================
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class Invoice extends PaperSheet
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constructor: (@price, @currency) ->
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photocopy: ->
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clone = Object.create Object.getPrototypeOf @
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for own key, val of @
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clone[key] = val
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clone
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# ==============================
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# CLIENT CODE
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# ==============================
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invoice = new Invoice 42, "€"
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copy = invoice.photocopy()
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console.log copy.price # 42
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console.log copy.currency # €
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console.log copy is invoice # false (the copy is not the original invoice: it is a new object!)

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