C#设计模式之十七中介者模式（Mediator Pattern）【行为型】

  1namespace 中介者模式的实现
  2{
  3//抽象中介者角色  4publicinterface Mediator
  5    {
  6void Command(Department department);
  7    }
  8  9//总经理--相当于具体中介者角色 10publicsealedclass President : Mediator
 11    {
 12//总经理有各个部门的管理权限 13private Financial _financial;
 14private Market _market;
 15private Development _development;
 16 17publicvoid SetFinancial(Financial financial)
 18        {
 19this._financial = financial;
 20        }
 21publicvoid SetDevelopment(Development development)
 22        {
 23this._development = development;
 24        }
 25publicvoid SetMarket(Market market)
 26        {
 27this._market = market;
 28        }
 29 30publicvoid Command(Department department)
 31        {
 32if (department.GetType() == typeof(Market))
 33            {
 34                _financial.Process();
 35            }
 36        }
 37    }
 38 39//同事类的接口 40publicabstractclass Department
 41    {
 42//持有中介者(总经理)的引用 43private Mediator mediator;
 44 45protected Department(Mediator mediator)
 46        {
 47this.mediator = mediator;
 48        }
 49 50public Mediator GetMediator
 51        {
 52get { return mediator; }
 53privateset { this.mediator = value; }
 54        }
 55 56//做本部门的事情 57publicabstractvoid Process();
 58 59//向总经理发出申请 60publicabstractvoid Apply();
 61    }
 62 63//开发部门 64publicsealedclass Development : Department
 65    {
 66public Development(Mediator m) : base(m) { }
 67 68publicoverridevoid Process()
 69        {
 70             Console.WriteLine("我们是开发部门，要进行项目开发，没钱了，需要资金支持！");
 71        }
 72 73publicoverridevoid Apply()
 74        {
 75             Console.WriteLine("专心科研，开发项目！");
 76        }
 77    }
 78 79//财务部门 80publicsealedclass Financial : Department
 81    {
 82public Financial(Mediator m) : base(m) { }
 83 84publicoverridevoid Process()
 85        {
 86             Console.WriteLine("汇报工作！没钱了，钱太多了！怎么花?");
 87        }
 88 89publicoverridevoid Apply()
 90        {
 91             Console.WriteLine("数钱！");
 92        }
 93    }
 94 95//市场部门 96publicsealedclass Market : Department
 97    {
 98public Market(Mediator mediator) : base(mediator) { }
 99100publicoverridevoid Process()
101        {
102             Console.WriteLine("汇报工作！项目承接的进度，需要资金支持！");
103             GetMediator.Command(this);
104        }
105106publicoverridevoid Apply()
107        {
108             Console.WriteLine("跑去接项目！");
109        }
110    }
111112113class Program
114    {
115staticvoid Main(String[] args)
116        {
117             President mediator = new President();
118             Market market = new Market(mediator);
119             Development development = new Development(mediator);
120             Financial financial = new Financial(mediator);
121122            mediator.SetFinancial(financial);
123            mediator.SetDevelopment(development);
124            mediator.SetMarket(market);
125126            market.Process();
127            market.Apply();
128129            Console.Read();
130        }
131    }
132 }