浅谈JAVA设计模式之——责任链模式(COR)

package com.lyz.design.cor;
import org.omg.CORBA.Request;
/**
 * Handler
 * @author binghe
 *
 */
public interface RequestHandle {
    void handleRequest(Request request);
}

package com.lyz.design.cor;
import org.omg.CORBA.Request;
/**
 * ConcreteHandler 
 * @author binghe
 *
 */
public class HRRequestHandle implements RequestHandle {
    public void handleRequest(Request request) {
        if (request instanceof DimissionRequest) {
            System.out.println("要离职, 人事审批!");
        } 
        System.out.println("请求完毕");
    }
}

package com.lyz.design.cor;
/**
 * ConcreteHandler
 * @author binghe
 *
 */
public class PMRequestHandle implements RequestHandle {
    RequestHandle rh;
    public PMRequestHandle(RequestHandle rh) {
        this.rh = rh;
    }
    public void handleRequest(Request request) {
        if (request instanceof AddMoneyRequest) {
            System.out.println("要加薪, 项目经理审批!");
        } else {
            rh.handleRequest(request);
        }
    }
}

package com.lyz.design.cor;
/**
 * ConcreteHandler
 * @author binghe
 *
 */
public class TLRequestHandle implements RequestHandle {
    RequestHandle rh;
    public TLRequestHandle(RequestHandle rh) {
        this.rh = rh;
    }
    public void handleRequest(Request request) {
        if (request instanceof LeaveRequest) {
            System.out.println("要请假, 项目组长审批!");
        } else {
            rh.handleRequest(request);
        }
    }
}

package com.lyz.design.cor;
import org.omg.CORBA.Request;
/**
 * Test
 * @author binghe
 */
public class Test {
    public static void main(String[] args) {
        RequestHandle hr = new HRRequestHandle();
        RequestHandle pm = new PMRequestHandle(hr);
        RequestHandle tl = new TLRequestHandle(pm);
        //team leader处理离职请求
        Request request = new Request();
        tl.handleRequest(request);
        System.out.println("===========");
        //team leader处理加薪请求
        request = new AddMoneyRequest();
        tl.handleRequest(request);
        System.out.println("========");
        //项目经理受理辞职请求
        request = new DimissionRequest();
        pm.handleRequest(request);
    }
}