设计模式4.3-工厂模式之抽象工厂

<?php
/*
*
*   抽象工厂：提供一个接口，用来创建相关或依赖对象的家族，而不需要明确指定具体类
*
*
*   在我们的示例中，MaterialFactory是抽象工厂的抽象类，它定义了创建Water和RawNoodles这两个同属一个家族的对象的方法。
*   在具体的工厂类中，每一个对象的创建都使用工厂方法的方式创建。
*
*
*/

//抽象工厂类和具体工厂类
abstract class MaterialFactory
{
abstract public function createWater();
abstract public function createRawNoodles();
}

class BeiJingMaterialFactory extends MaterialFactory
{
public function createWater()
{
return new BitterWater();
}

public function createRawNoodles()
{
return new LongRawNoodles();
}
}

class ShangHaiMaterialFactory extends MaterialFactory
{
public function createWater()
{
return new SweetWater();
}

public function createRawNoodles()
{
return new ShortRawNoodles();
}
}
//抽象Water和具体Water类--原料家族一员
abstract class Water
{
abstract public function display();
}

class SweetWater extends Water
{
public function display()
{
echo "I am Sweet Water!<br>\n";
}
}
class BitterWater extends Water
{
public function display()
{
echo "I am Biiter Water!<br>\n";
}
}

//抽象RawNoodles和具体RawNoodles--原料家族一员
abstract class RawNoodles
{
abstract public function display();
}
class LongRawNoodles extends RawNoodles
{
public function display()
{
echo "I am Long RawNoodles!<br>\n";
}
}
class ShortRawNoodles extends RawNoodles
{
public function display()
{
echo "I am Short RawNoodles!<br>\n";
}
}

//抽象产品Noodles和具体的产品Noodles
abstract class Noodles
{
public $materialFactory;
public $water;
public $rawNoodles;

public function __construct($materialFactory)
{
$this->materialFactory = $materialFactory;
}

public function prepare()
{
$this->water = $this->materialFactory->createWater();
$this->rawNoodles = $this->materialFactory->createRawNoodles();
}

public function cook()
{
echo "cooking<br>\n";
}
public function package()
{
echo "packaging<br>\n";
}

public function display()
{
$this->water->display();
$this->rawNoodles->display();
}
}

class BeiJingNoodles extends Noodles
{
}

class ShangHaiNoodles extends Noodles
{
}

//抽象NoodlesStore和具体NoodlesStore
abstract class NoodlesStore
{
public function orderNoodles()
{
$noodles = $this->createNoodles();
$noodles->prepare();
$noodles->display();
$noodles->cook();
$noodles->package();
}

abstract public function createNoodles();
}

class BeiJingNoodlesStore extends NoodlesStore
{
public function createNoodles()
{
$factory = new BeiJingMaterialFactory();
return new BeiJingNoodles($factory);
}
}

class ShangHaiNoodlesStore extends NoodlesStore
{
public function createNoodles()
{
$factory = new ShangHaiMaterialFactory();
return new ShangHaiNoodles($factory);
}
}

class Test
{
public function run()
{
$beijingStore = new BeiJingNoodlesStore();
$shanghaiStore = new ShangHaiNoodlesStore();

$beijingStore->orderNoodles();
$shanghaiStore->orderNoodles();
}
}

$test = new Test();
$test->run();