责任链+命令模式+Junit-v1初步

students/812350401/pom.xml

@@ -38,6 +38,7 @@
     	<groupId>junit</groupId>
     	<artifactId>junit</artifactId>
     	<version>4.12</version>
+          <!--<version>3.8.1</version>-->
     </dependency>
       <dependency>
           <groupId>com.google.collections</groupId>
@@ -49,7 +50,6 @@
           <artifactId>commons-codec</artifactId>
           <version>1.6</version>
       </dependency>
-
   </dependencies>
   <repositories>
         <repository>

students/812350401/src/main/java/com/coderising/mydp/command/Client.java

@@ -0,0 +1,21 @@
+package com.coderising.mydp.command;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ * 命令模式
+ */
+public class Client {
+
+    public static void main(String[] args) {
+        Cook cook = new Cook();
+        Waitor waitor = new Waitor();
+
+        Command command1 = new OrderPorkCommand(cook);
+        Command command2 = new OrderSteakCommand(cook);
+
+        waitor.addOrder(command1);
+        waitor.addOrder(command2);
+
+        waitor.sendOrders();
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/command/Command.java

@@ -0,0 +1,8 @@
+package com.coderising.mydp.command;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public interface Command {
+    void execute();
+}

students/812350401/src/main/java/com/coderising/mydp/command/Cook.java

@@ -0,0 +1,23 @@
+package com.coderising.mydp.command;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class Cook {
+
+    public void cookSteak() {
+        System.out.println("Steak is ok");
+    }
+
+    public void cookPork() {
+        System.out.println("Pork is ok");
+    }
+
+    public static void main(String[] args) {
+        StringBuilder x = new StringBuilder("Hello");
+        String r1 = x.append(",world").toString();
+        String r2 = x.append(",world").toString();
+        System.out.println(r1);
+        System.out.println(r2);
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/command/OrderPorkCommand.java

@@ -0,0 +1,16 @@
+package com.coderising.mydp.command;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class OrderPorkCommand implements Command {
+    private Cook cook;
+
+    public OrderPorkCommand(Cook cook) {
+        this.cook = cook;
+    }
+    @Override
+    public void execute() {
+        cook.cookPork();
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/command/OrderSteakCommand.java

@@ -0,0 +1,16 @@
+package com.coderising.mydp.command;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class OrderSteakCommand implements Command {
+    private Cook cook;
+    public OrderSteakCommand(Cook cook) {
+        this.cook = cook;
+    }
+
+    @Override
+    public void execute() {
+        cook.cookSteak();
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/command/Waitor.java

@@ -0,0 +1,20 @@
+package com.coderising.mydp.command;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class Waitor {
+    List<Command> commands = new ArrayList<>();
+
+    public void addOrder(Command command) {
+        commands.add(command);
+    }
+
+    public void sendOrders() {
+        commands.stream().forEach(Command::execute);
+    }
+
+}

students/812350401/src/main/java/com/coderising/mydp/responseChain/AbstractLogger.java

@@ -0,0 +1,26 @@
+package com.coderising.mydp.responseChain;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public abstract class AbstractLogger {
+    public static final String DEBUG = "DEBUG";
+    public static final String NOTICE = "NOTICE";
+    public static final String ERR = "ERR";
+
+    /**
+     * 持有下一个处理请求的对象
+     */
+    private AbstractLogger next = null;
+
+    public AbstractLogger getNext() {
+        return next;
+    }
+
+    public AbstractLogger setNext(AbstractLogger next) {
+        this.next = next;
+        return this;
+    }
+
+    public abstract void message(String message, String type);
+}

students/812350401/src/main/java/com/coderising/mydp/responseChain/Client.java

@@ -0,0 +1,23 @@
+package com.coderising.mydp.responseChain;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class Client {
+
+    public static void main(String[] args) {
+        AbstractLogger logger = new StdoutLogger()
+                .setNext(new EmailLogger()
+                .setNext(new FileLogger()));
+
+        // 由StdoutLogger处理
+        logger.message("进入计算函数", AbstractLogger.DEBUG);
+        // 由StdoutLogger和EmailLogger处理
+        System.out.println("*****************");
+        logger.message("第一步已完成", AbstractLogger.NOTICE);
+        // 由所有logger处理
+        System.out.println("*****************");
+        logger.message("一个致命的错误发生了", AbstractLogger.ERR);
+    }
+
+}

students/812350401/src/main/java/com/coderising/mydp/responseChain/EmailLogger.java

@@ -0,0 +1,15 @@
+package com.coderising.mydp.responseChain;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class EmailLogger extends AbstractLogger {
+
+    @Override
+    public void message(String message, String type) {
+        System.out.println("EmailLogger处理:" + message);
+        if (!AbstractLogger.NOTICE.equals(type)) {
+            getNext().message(message, type);
+        }
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/responseChain/FileLogger.java

@@ -0,0 +1,11 @@
+package com.coderising.mydp.responseChain;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class FileLogger extends AbstractLogger {
+    @Override
+    public void message(String message, String type) {
+        System.out.println("FileLogger处理:" + message);
+    }
+}

students/812350401/src/main/java/com/coderising/mydp/responseChain/StdoutLogger.java

@@ -0,0 +1,14 @@
+package com.coderising.mydp.responseChain;
+
+/**
+ * Created by thomas_young on 11/8/2017.
+ */
+public class StdoutLogger extends AbstractLogger {
+    @Override
+    public void message(String message, String type) {
+        System.out.println("StdoutLogger处理:" + message);
+        if (!AbstractLogger.DEBUG.equals(type)) {
+            getNext().message(message, type);
+        }
+    }
+}

students/812350401/src/main/java/com/coderising/myknowledgepoint/myResponseChain/Client.java

@@ -0,0 +1,37 @@
+package com.coderising.myknowledgepoint.myResponseChain;
+
+/**
+ * Created by thomas_young on 10/8/2017.
+ * http://www.cnblogs.com/java-my-life/archive/2012/05/28/2516865.html
+ */
+
+public class Client {
+
+    public static void main(String[] args) {
+        //先要组装责任链
+        Handler h1 = new GeneralManager();
+        Handler h2 = new DeptManager();
+        Handler h3 = new ProjectManager();
+        h3.setSuccessor(h2);
+        h2.setSuccessor(h1);
+
+        //开始测试
+        String test1 = h3.handleFeeRequest("张三", 300);
+        System.out.println("test1 = " + test1);
+        String test2 = h3.handleFeeRequest("李四", 300);
+        System.out.println("test2 = " + test2);
+        System.out.println("---------------------------------------");
+
+        String test3 = h3.handleFeeRequest("张三", 700);
+        System.out.println("test3 = " + test3);
+        String test4 = h3.handleFeeRequest("李四", 700);
+        System.out.println("test4 = " + test4);
+        System.out.println("---------------------------------------");
+
+        String test5 = h3.handleFeeRequest("张三", 1500);
+        System.out.println("test5 = " + test5);
+        String test6 = h3.handleFeeRequest("李四", 1500);
+        System.out.println("test6 = " + test6);
+    }
+
+}

students/812350401/src/main/java/com/coderising/myknowledgepoint/myResponseChain/DeptManager.java

@@ -0,0 +1,35 @@
+package com.coderising.myknowledgepoint.myResponseChain;
+
+/**
+ * Created by thomas_young on 10/8/2017.
+ */
+public class DeptManager extends Handler {
+
+    @Override
+    public String handleFeeRequest(String user, double fee) {
+
+        String str = "";
+        //部门经理的权限只能在1000以内
+        if(fee < 1000)
+        {
+            //为了测试，简单点，只同意张三的请求
+            if("张三".equals(user))
+            {
+                str = "成功：部门经理同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }else
+            {
+                //其他人一律不同意
+                str = "失败：部门经理不同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }
+        }else
+        {
+            //超过1000，继续传递给级别更高的人处理
+            if(getSuccessor() != null)
+            {
+                return getSuccessor().handleFeeRequest(user, fee);
+            }
+        }
+        return str;
+    }
+
+}

students/812350401/src/main/java/com/coderising/myknowledgepoint/myResponseChain/GeneralManager.java

@@ -0,0 +1,34 @@
+package com.coderising.myknowledgepoint.myResponseChain;
+
+/**
+ * Created by thomas_young on 10/8/2017.
+ */
+public class GeneralManager extends Handler {
+
+    @Override
+    public String handleFeeRequest(String user, double fee) {
+
+        String str = "";
+        //总经理的权限很大，只要请求到了这里，他都可以处理
+        if(fee >= 1000)
+        {
+            //为了测试，简单点，只同意张三的请求
+            if("张三".equals(user))
+            {
+                str = "成功：总经理同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }else
+            {
+                //其他人一律不同意
+                str = "失败：总经理不同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }
+        }else {
+            //如果还有后继的处理对象，继续传递
+            if(getSuccessor() != null)
+            {
+                return getSuccessor().handleFeeRequest(user, fee);
+            }
+        }
+        return str;
+    }
+
+}

students/812350401/src/main/java/com/coderising/myknowledgepoint/myResponseChain/Handler.java

@@ -0,0 +1,30 @@
+package com.coderising.myknowledgepoint.myResponseChain;
+
+/**
+ * Created by thomas_young on 10/8/2017.
+ */
+public abstract class Handler {
+    /**
+     * 持有下一个处理请求的对象
+     */
+    protected Handler successor = null;
+    /**
+     * 取值方法
+     */
+    public Handler getSuccessor() {
+        return successor;
+    }
+    /**
+     * 设置下一个处理请求的对象
+     */
+    public void setSuccessor(Handler successor) {
+        this.successor = successor;
+    }
+    /**
+     * 处理聚餐费用的申请
+     * @param user    申请人
+     * @param fee    申请的钱数
+     * @return        成功或失败的具体通知
+     */
+    public abstract String handleFeeRequest(String user , double fee);
+}

students/812350401/src/main/java/com/coderising/myknowledgepoint/myResponseChain/ProjectManager.java

@@ -0,0 +1,35 @@
+package com.coderising.myknowledgepoint.myResponseChain;
+
+/**
+ * Created by thomas_young on 10/8/2017.
+ */
+public class ProjectManager extends Handler {
+
+    @Override
+    public String handleFeeRequest(String user, double fee) {
+
+        String str = "";
+        //项目经理权限比较小，只能在500以内
+        if(fee < 500)
+        {
+            //为了测试，简单点，只同意张三的请求
+            if("张三".equals(user))
+            {
+                str = "成功：项目经理同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }else
+            {
+                //其他人一律不同意
+                str = "失败：项目经理不同意【" + user + "】的聚餐费用，金额为" + fee + "元";
+            }
+        }else
+        {
+            //超过500，继续传递给级别更高的人处理
+            if(getSuccessor() != null)
+            {
+                return getSuccessor().handleFeeRequest(user, fee);
+            }
+        }
+        return str;
+    }
+
+}