6 | * Create Time: 2019-06-03 18:03 7 | * Last Modify: 2019-06-03 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Shape { 13 | void draw(); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/iterator/Aggregate.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.iterator; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 16:42 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Aggregate { 13 | Iterator iterator(); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/visitor/Visitable.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.visitor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 11:15 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Visitable { 13 | void accept(Visitor visitor); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/bridge/readme.md: -------------------------------------------------------------------------------- 1 | ## Bridge Design Pattern. 2 | 3 | > 桥接模式：将抽象部分与它的实现部分分离，使得它们可以独立地变化。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - [Github](https://github.com/qwhai) 13 | - [E-mail](return_zero0@163.com) 14 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/iterator/Iterator.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.iterator; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 16:39 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Iterator { 13 | boolean hasNext(); 14 | Object next(); 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/proxy/virtual2/Printable.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.proxy.virtual2; 2 | 3 | /** 4 | * TODO 5 | * 6 | * Create Time: 2019-04-07 18:04 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Printable { 13 | 14 | void print(String content); 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/framework/ShapeFactory.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.framework; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public interface ShapeFactory { 10 | 11 | Shape createSquareness(); 12 | 13 | Shape createCircular(); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/iterator/readme.md: -------------------------------------------------------------------------------- 1 | ## Iterator Design Pattern. 2 | 3 | > 迭代器模式：提供一种方法顺序访问一个聚合对象中的各个元素，而又不暴露该对象的内部表示。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - [Github](https://github.com/qwhai) 13 | - [E-mail](return_zero0@163.com) 14 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/strategy/Strategy.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.strategy; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 18:25 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Strategy { 13 | Hand nextHand(); 14 | void study(boolean win); 15 | } 16 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | # Compiled class file 2 | *.class 3 | 4 | # Log file 5 | *.log 6 | 7 | # BlueJ files 8 | *.ctxt 9 | 10 | # Mobile Tools for Java (J2ME) 11 | .mtj.tmp/ 12 | 13 | # Package Files # 14 | *.jar 15 | *.war 16 | *.nar 17 | *.ear 18 | *.zip 19 | *.tar.gz 20 | *.rar 21 | 22 | # virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml 23 | hs_err_pid* 24 | /.idea 25 | /target 26 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/adapter/inherit/Print.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.adapter.inherit; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 17:25 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Print { 13 | void printWeak(); 14 | void printStrong(); 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/proxy/readme.md: -------------------------------------------------------------------------------- 1 | ## Proxy Design Pattern 2 | 3 | > 为其他对象提供一种代理以控制对这个对象的访问。在某些情况下，一个对象不适合或者不能直接引用另一个对象，而代理对象可以在客户端和目标对象之间起到中介的作用。 4 | 5 | 以上是代理模式的定义。从定义我们可以剖析出代理模式的使用场景： 6 | 1. 一个对象不适合直接引用另一个对象 7 | 2. 一个对象不能直接引用另一个对象 8 | 9 | 本文将围绕这两种场景张开讲解。 10 | 11 | ------------ 12 | 13 | 本文关键点备忘 14 | 15 | ```$xslt 16 | 两种场景：静态代理 动态代理 17 | 类图 代理需要为实际对象减负 提高扩展性 代理细节（包括执行顺序等） 18 | 代理更常用的场景：RPC/RMI 19 | ``` -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/command/cmd/Command.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.command.cmd; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-20 10:28 7 | * Last Modify: 2019-05-20 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Command { 13 | void calculate(); 14 | void undo(); 15 | void redo(); 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/prototype/Product.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.prototype; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019/5/21 21:41 7 | * Last Modify: 2019/5/21 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Product extends Cloneable { 13 | void use(String s); 14 | Product createClone(); 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/method/framework/Product.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.method.framework; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public abstract class Product { 10 | 11 | public abstract void recharge(double x); 12 | 13 | public abstract void use(double x); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/interpreter/Node.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.interpreter; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:42 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Node { 13 | public abstract void parse(Context context) throws ParseException; 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/memento/readme.md: -------------------------------------------------------------------------------- 1 | ## Memento Design Pattern. 2 | 3 | > 备忘录模式：在不破坏封装性的前提下，捕获一个对象的内部状态，并在该对象之外保存这个状态。这样以后就可将该对象恢复到原先保存的状态。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - [Github](https://github.com/qwhai) 13 | - [E-mail](return_zero0@163.com) 14 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/proxy/virtual1/IStation.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.proxy.virtual1; 2 | 3 | /** 4 | * 车站接口 5 | * 6 | * Create Time: 2019-04-05 22:23 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface IStation extends ITicketable { 13 | int ticketSurplus(String start, String end); 14 | } 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/visitor/readme.md: -------------------------------------------------------------------------------- 1 | ## Visitor Design Pattern. 2 | 3 | > 访问者模式：表示一个作用于某对象结构中的各元素的操作。它使你可以在不改变各元素的类的前提下定义作用于这些元素的新操作。 4 | 5 | ### Ref 6 | - 《23种Java设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - [Github](https://github.com/qwhai) 13 | - [E-mail](return_zero0@163.com) 14 | -------------------------------------------------------------------------------- /src/test/java/pers/hai/sample/dp/Testable.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp; 2 | 3 | import org.apache.log4j.Logger; 4 | 5 | /** 6 | * TODO 7 | *
8 | * Create Time: 2019-05-20 14:46 9 | * Last Modify: 2019-05-20 10 | * 11 | * @author Q-WHai 12 | * @see https://github.com/qwhai 13 | */ 14 | class Testable { 15 | final Logger logger = Logger.getLogger(Testable.class); 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/mediator/readme.md: -------------------------------------------------------------------------------- 1 | ## Mediator Design Pattern. 2 | 3 | > 中介者模式：用一个中介对象来封装一系列的对象交互。中介者使各对象不需要显示地相互引用，从而使其耦合松散，而且可以独立地改变它们之间的交互。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - [Github](https://github.com/qwhai) 13 | - [E-mail](return_zero0@163.com) 14 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/mediator/Mediator.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.mediator; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 14:28 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Mediator { 13 | //申明一个联络方法 14 | public abstract void constact(String message, Person person); 15 | } -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/adapter/entrust/Print.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.adapter.entrust; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 17:34 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Print { 13 | public abstract void printWeak(); 14 | public abstract void printStrong(); 15 | } 16 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/interpreter/readme.md: -------------------------------------------------------------------------------- 1 | ## Interpreter Design Pattern. 2 | 3 | > 解释器模式：给定一个语言，定义它的文法的一种表示，并定义一个解释器，这个解释器使用这个表示来解释语言中的句子。 4 | 5 | ### 应用场景 6 | 7 | 8 | ### Ref 9 | - 《图解设计模式》 10 | 11 | ----- 12 | 13 | - [CSDN](https://qwhai.blog.csdn.net/) 14 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 15 | - [Github](https://github.com/qwhai) 16 | - [E-mail](return_zero0@163.com) 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/interpreter/ParseException.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.interpreter; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:50 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class ParseException extends Exception { 13 | public ParseException(String message) { 14 | super(message); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/bridge/DisplayImpl.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.bridge; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 17:56 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class DisplayImpl { 13 | public abstract void rawOpen(); 14 | public abstract void rawPrint(); 15 | public abstract void rawClose(); 16 | } 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/adapter/readme.md: -------------------------------------------------------------------------------- 1 | ## Adapter Design Pattern. 2 | 3 | > 适配器模式：将一个类的接口转换成客户希望的另外一个接口。Adapter 模式使得原本由于接口不兼容而不能一起工作的那些类可以一起工作。 4 | 5 | - entrust -- 基于委托实现的适配器模式 6 | - inherit -- 基于继承实现的适配器模式 7 | 8 | ### Ref 9 | - 《图解设计模式》 10 | 11 | ----- 12 | 13 | - [CSDN](https://qwhai.blog.csdn.net/) 14 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 15 | - [Github](https://github.com/qwhai) 16 | - [E-mail](return_zero0@163.com) 17 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/command/CommandAttachable.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.command; 2 | 3 | import pers.hai.sample.dp.command.cmd.Command; 4 | 5 | /** 6 | * 可附加命令 7 | * 8 | * Create Time: 2019-05-20 15:03 9 | * Last Modify: 2019-05-20 10 | * 11 | * @author Q-WHai 12 | * @see https://github.com/qwhai 13 | */ 14 | public interface CommandAttachable { 15 | void attachUndo(Command command); 16 | void attachRedo(Command command); 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/composite/readme.md: -------------------------------------------------------------------------------- 1 | ## Composite Design Pattern. 2 | 3 | > 组合模式：将对象组合成树形结构以表示‘部分-整体’的层次结构。组合模式使得用户对单个对象和组合对象的使用具有一致性。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 12 | - 《[Java设计模式--组合模式](https://qwhai.blog.csdn.net/article/details/51437883)》 13 | - [Github](https://github.com/qwhai) 14 | - [E-mail](return_zero0@163.com) 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/strategy/readme.md: -------------------------------------------------------------------------------- 1 | ## Strategy Design Pattern. 2 | 3 | > 策略模式：它定义了算法家族，分别封装起来，让它们之间可以互相替换，此模式让算法的变化，不会影响到使用算法的客户。 4 | 5 | ### Ref 6 | - 《图解设计模式》 7 | 8 | ----- 9 | 10 | - [CSDN](https://qwhai.blog.csdn.net/) 11 | - 《[Java设计模式--策略模式](https://qwhai.blog.csdn.net/article/details/45894511)》 12 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 13 | - [Github](https://github.com/qwhai) 14 | - [E-mail](return_zero0@163.com) 15 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/command/Computable.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.command; 2 | 3 | /** 4 | * 表示可计算接口 5 | * 6 | * Create Time: 2019-05-20 10:30 7 | * Last Modify: 2019-05-20 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public interface Computable { 13 | void add(double x); 14 | void sub(double x); 15 | void mul(double x); 16 | void div(double x); 17 | 18 | void undo(); 19 | void redo(); 20 | } 21 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/visitor/Visitor.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.visitor; 2 | 3 | import java.util.Collection; 4 | 5 | /** 6 | * TODO 7 | *
8 | * Create Time: 2019-06-14 11:17 9 | * Last Modify: 2019-06-14 10 | * 11 | * @author Q-WHai 12 | * @see https://github.com/qwhai 13 | */ 14 | public interface Visitor { 15 | void visitString(StringElement stringE); 16 | void visitFloat(FloatElement floatE); 17 | void visitCollection(Collection collection); 18 | } -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/composite/FileTreatMentException.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.composite; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-30 09:50 7 | * Last Modify: 2019-05-30 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class FileTreatMentException extends RuntimeException { 13 | public FileTreatMentException() { } 14 | public FileTreatMentException(String msg) { 15 | super(msg); 16 | } 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/mediator/Person.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.mediator; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 14:28 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Person { 13 | protected String name; 14 | Mediator mediator; 15 | 16 | Person(String name, Mediator mediator){ 17 | this.name = name; 18 | this.mediator = mediator; 19 | } 20 | } -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/command/ComputeResult.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.command; 2 | 3 | /** 4 | * TODO 5 | * 6 | * Create Time: 2019-05-20 11:50 7 | * Last Modify: 2019-05-20 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | class ComputeResult { 13 | private double result = 0; 14 | 15 | double getResult() { 16 | return result; 17 | } 18 | 19 | void setResult(double result) { 20 | this.result = result; 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/readme.md: -------------------------------------------------------------------------------- 1 | ## Chain of Responsibility Design Pattern. 2 | 3 | > 责任链模式：使多个对象都有机会处理请求，从而避免请求的发送者和接收者之间的耦合关系。将这个对象连成一条链，并沿着这条链传递该请求，直到有一个对象处理它为止。 4 | 5 | ### 应用场景 6 | 1. 在控件相互嵌套的界面程序中，当传递来了一个事件消息，这个消息在何处被传递，何处被消费。这就是一个责任链模式。 7 | 8 | 9 | ### Ref 10 | - 《图解设计模式》 11 | 12 | ----- 13 | 14 | - [CSDN](https://qwhai.blog.csdn.net/) 15 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 16 | - [Github](https://github.com/qwhai) 17 | - [E-mail](return_zero0@163.com) 18 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/NoSupport.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.cor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:15 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class NoSupport extends Support { 13 | 14 | public NoSupport(String name) { 15 | super(name); 16 | } 17 | 18 | @Override 19 | protected boolean resolve(Trouble trouble) { 20 | return false; 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/state/StateLimitException.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.state; 2 | 3 | /** 4 | * TODO 5 | * 6 | * Create Time: 2019-04-10 17:00 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class StateLimitException extends RuntimeException { 13 | 14 | public StateLimitException() { 15 | super(); 16 | } 17 | 18 | public StateLimitException(String message) { 19 | super(message); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/builder/Builder.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.builder; 2 | 3 | /** 4 | * 定义决定文档结构的方法的抽象类 5 | * 6 | * Create Time: 2019/5/25 23:19 7 | * Last Modify: 2019/5/25 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Builder { 13 | public abstract void makeTitle(String title); 14 | public abstract void makeString(String content); 15 | public abstract void makeItems(String[] items); 16 | public abstract void close(); 17 | } 18 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/observer/framework/NumberGenerator.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.observer.framework; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public interface NumberGenerator { 10 | 11 | void generate(); 12 | 13 | void registerChangedObserver(Observer observer); 14 | void registerCycleObserver(Observer observer, int t); 15 | void publish(); 16 | 17 | String getName(); 18 | int getNumber(); 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/proxy/access/UnauthorizedException.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.proxy.access; 2 | 3 | /** 4 | * TODO 5 | * 6 | * Create Time: 2019-04-07 22:27 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class UnauthorizedException extends Exception { 13 | 14 | public UnauthorizedException() { 15 | super(); 16 | } 17 | 18 | public UnauthorizedException(String message) { 19 | super(message); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/OddSupport.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.cor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:18 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class OddSupport extends Support { 13 | 14 | public OddSupport(String name) { 15 | super(name); 16 | } 17 | 18 | @Override 19 | protected boolean resolve(Trouble trouble) { 20 | return 1 == trouble.getNumber() % 2; 21 | } 22 | } 23 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/BlueCircularShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import org.apache.log4j.Logger; 4 | 5 | /** 6 | * Last Modify: 2019-05-24 7 | * 8 | * @author Q-WHai 9 | * @see https://github.com/qwhai 10 | */ 11 | public class BlueCircularShape extends CircularShape { 12 | 13 | private final Logger logger = Logger.getLogger(BlueCircularShape.class); 14 | 15 | @Override 16 | public void show() { 17 | logger.info("创建了一个蓝色的圆形"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/RedCircularShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import org.apache.log4j.Logger; 4 | 5 | /** 6 | * Last Modify: 2019-05-24 7 | * 8 | * @author Q-WHai 9 | * @see https://github.com/qwhai 10 | */ 11 | public class RedCircularShape extends CircularShape { 12 | 13 | private final Logger logger = Logger.getLogger(RedCircularShape.class); 14 | 15 | @Override 16 | public void show() { 17 | logger.info("创建了一个红色的圆形"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/test/java/pers/hai/sample/dp/TemplatePatternTest.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp; 2 | 3 | import pers.hai.sample.dp.template.AbstractDisplay; 4 | import pers.hai.sample.dp.template.CharDisplay; 5 | import pers.hai.sample.dp.template.StringDisplay; 6 | import org.junit.Test; 7 | 8 | public class TemplatePatternTest { 9 | 10 | @Test 11 | public void testTemplate() { 12 | AbstractDisplay d1 = new CharDisplay('A'); 13 | d1.display(); 14 | 15 | AbstractDisplay d2 = new StringDisplay("Hello, World"); 16 | d2.display(); 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/BlueSquarenessShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import org.apache.log4j.Logger; 4 | 5 | /** 6 | * Last Modify: 2019-05-24 7 | * 8 | * @author Q-WHai 9 | * @see https://github.com/qwhai 10 | */ 11 | public class BlueSquarenessShape extends SquarenessShape { 12 | 13 | private final Logger logger = Logger.getLogger(BlueCircularShape.class); 14 | 15 | @Override 16 | public void show() { 17 | logger.info("创建了一个蓝色的方形"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/RedSquarenessShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import org.apache.log4j.Logger; 4 | 5 | /** 6 | * Last Modify: 2019-05-24 7 | * 8 | * @author Q-WHai 9 | * @see https://github.com/qwhai 10 | */ 11 | public class RedSquarenessShape extends SquarenessShape { 12 | 13 | private final Logger logger = Logger.getLogger(RedSquarenessShape.class); 14 | 15 | @Override 16 | public void show() { 17 | logger.info("创建了一个红色的方形"); 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/CircularShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import pers.hai.sample.dp.factory.abstr.framework.Shape; 4 | import org.apache.log4j.Logger; 5 | 6 | /** 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class CircularShape implements Shape { 13 | 14 | private final Logger logger = Logger.getLogger(CircularShape.class); 15 | 16 | @Override 17 | public void show() { 18 | logger.info("创建了一个圆形"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/proxy/dynamic/IStation.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.proxy.dynamic; 2 | 3 | import pers.hai.sample.dp.proxy.dynamic.model.StationPort; 4 | 5 | /** 6 | * 车站接口 7 | * 8 | * Create Time: 2019-04-10 10:47 9 | * Last Modify: 2019-05-24 10 | * 11 | * @author Q-WHai 12 | * @see https://github.com/qwhai 13 | */ 14 | public interface IStation extends ITicketable { 15 | 16 | // 余票查询 17 | int ticketSurplus(StationPort from, StationPort to); 18 | 19 | // 修正余票信息 20 | void amendTicketSurplus(StationPort from, StationPort to); 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/template/AbstractDisplay.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.template; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public abstract class AbstractDisplay { 10 | 11 | public abstract void open(); 12 | 13 | public abstract void print(); 14 | 15 | public abstract void close(); 16 | 17 | public final void display() { 18 | open(); 19 | for (int i = 0; i < 5; i++){ 20 | print(); 21 | } 22 | 23 | close(); 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/shape/SquarenessShape.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.shape; 2 | 3 | import pers.hai.sample.dp.factory.abstr.framework.Shape; 4 | import org.apache.log4j.Logger; 5 | 6 | /** 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class SquarenessShape implements Shape { 13 | 14 | private final Logger logger = Logger.getLogger(SquarenessShape.class); 15 | 16 | @Override 17 | public void show() { 18 | logger.info("创建了一个方形"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/decorator/Display.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.decorator; 2 | 3 | /** 4 | * TODO 5 | * 6 | * Create Time: 2019-04-10 18:01 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public abstract class Display { 13 | 14 | abstract int getRows(); 15 | abstract int getColumns(); 16 | abstract String getRowText(int row); 17 | 18 | public void show() { 19 | for (int i = 0; i < getRows(); i++) { 20 | System.out.println(getRowText(i)); 21 | } 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/bridge/CountDisplay.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.bridge; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 17:58 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class CountDisplay extends Display { 13 | 14 | public CountDisplay(DisplayImpl impl) { 15 | super(impl); 16 | } 17 | 18 | public void multiDisplay(int times) { 19 | open(); 20 | for (int i = 0; i < times; i++) { 21 | print(); 22 | } 23 | close(); 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/method/framework/Factory.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.method.framework; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public abstract class Factory { 10 | 11 | public Product create(String name) { 12 | Product product = createProduct(name); 13 | registerProduct(product); 14 | 15 | return product; 16 | } 17 | 18 | protected abstract Product createProduct(String name); 19 | 20 | protected abstract void registerProduct(Product product); 21 | } 22 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/iterator/Book.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.iterator; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 16:40 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class Book { 13 | 14 | private String name; 15 | 16 | public Book(String name) { 17 | this.name = name; 18 | } 19 | 20 | public String getName() { 21 | return name; 22 | } 23 | 24 | @Override 25 | public String toString() { 26 | return String.format("《%s》", getName()); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/LimitSupport.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.cor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:16 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class LimitSupport extends Support { 13 | 14 | private int limit; 15 | 16 | public LimitSupport(String name, int limit) { 17 | super(name); 18 | this.limit = limit; 19 | } 20 | 21 | @Override 22 | protected boolean resolve(Trouble trouble) { 23 | return trouble.getNumber() < limit; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/observer/CycleObserver.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.observer; 2 | 3 | import pers.hai.sample.dp.observer.framework.NumberGenerator; 4 | import pers.hai.sample.dp.observer.framework.Observer; 5 | 6 | /** 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class CycleObserver implements Observer { 13 | 14 | @Override 15 | public void update(NumberGenerator generator) { 16 | System.out.println(String.format("Cycle Observer 接收到 %s 发布的更新：%d", generator.getName(), generator.getNumber())); 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/observer/DigitObserver.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.observer; 2 | 3 | import pers.hai.sample.dp.observer.framework.NumberGenerator; 4 | import pers.hai.sample.dp.observer.framework.Observer; 5 | 6 | /** 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class DigitObserver implements Observer { 13 | 14 | @Override 15 | public void update(NumberGenerator generator) { 16 | System.out.println(String.format("Digit Observer 接收到 %s 发布的更新：%d", generator.getName(), generator.getNumber())); 17 | } 18 | } 19 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/SpecialSupport.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.cor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:20 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class SpecialSupport extends Support { 13 | 14 | private int number; 15 | 16 | public SpecialSupport(String name, int number) { 17 | super(name); 18 | this.number = number; 19 | } 20 | 21 | @Override 22 | protected boolean resolve(Trouble trouble) { 23 | return trouble.getNumber() == number; 24 | } 25 | } 26 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/cor/Trouble.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.cor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 17:07 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class Trouble { 13 | 14 | private int number; 15 | 16 | public Trouble(int number) { 17 | this.number = number; 18 | } 19 | 20 | public int getNumber() { 21 | return this.number; 22 | } 23 | 24 | @Override 25 | public String toString() { 26 | return String.format("[Trouble %d]", this.number); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/adapter/inherit/PrintBanner.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.adapter.inherit; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-29 17:25 7 | * Last Modify: 2019-05-29 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class PrintBanner extends Banner implements Print { 13 | 14 | public PrintBanner(String name) { 15 | super(name); 16 | } 17 | 18 | @Override 19 | public void printWeak() { 20 | showWithParen(); 21 | } 22 | 23 | @Override 24 | public void printStrong() { 25 | showWithAster(); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/command/ComputeCore.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.command; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-05-20 10:45 7 | * Last Modify: 2019-05-20 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | class ComputeCore { 13 | 14 | double add(double x, double y) { 15 | return x + y; 16 | } 17 | 18 | double sub(double x, double y) { 19 | return x - y; 20 | } 21 | 22 | double mul(double x, double y) { 23 | return x * y; 24 | } 25 | 26 | double div(double x, double y) { 27 | return x / y; 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/flyweight/readme.md: -------------------------------------------------------------------------------- 1 | ## Flyweight Design Pattern. 2 | 3 | > 享元模式：运用共享技术有效地支持大量细粒度的对象。 4 | 5 | ### 应用场景 6 | 7 | > 如果一个应用使用了大量的对象，而大量的这些对象产生了很大的存储开销时就应该考虑使用；还有就是对象的大多数状态可以外部状态，如果删除对象的外部状态，那么可以用相对较少的共享对象取代很多组对象，此时可以考虑使用享元模式。 8 | > 9 | > 1. 字符串的对象池 10 | 11 | ### Ref 12 | - 《大话设计模式》 13 | - [https://www.runoob.com/design-pattern/flyweight-pattern.html](https://www.runoob.com/design-pattern/flyweight-pattern.html) 14 | 15 | ----- 16 | 17 | - [CSDN](https://qwhai.blog.csdn.net/) 18 | - [Design pattern special column](http://blog.csdn.net/column/details/java-designpattern-w.html) 19 | - [Github](https://github.com/qwhai) 20 | - [E-mail](return_zero0@163.com) 21 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/visitor/FloatElement.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.visitor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 11:17 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class FloatElement implements Visitable { 13 | 14 | private Float value; 15 | public FloatElement(Float value) { 16 | this.value = value; 17 | } 18 | 19 | Float getValue(){ 20 | return value; 21 | } 22 | 23 | //定义 accept 的具体内容 这里是很简单的一句调用 24 | public void accept(Visitor visitor) { 25 | visitor.visitFloat(this); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/visitor/StringElement.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.visitor; 2 | 3 | /** 4 | * TODO 5 | *
6 | * Create Time: 2019-06-14 11:17 7 | * Last Modify: 2019-06-14 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class StringElement implements Visitable { 13 | 14 | private String value; 15 | public StringElement(String string) { 16 | value = string; 17 | } 18 | 19 | String getValue(){ 20 | return value; 21 | } 22 | 23 | //定义 accept 的具体内容 这里是很简单的一句调用 24 | public void accept(Visitor visitor) { 25 | visitor.visitString(this); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/method/model/Account.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.method.model; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public class Account { 10 | 11 | private String name; 12 | private double balance; 13 | 14 | public String getName() { 15 | return name; 16 | } 17 | 18 | public void setName(String name) { 19 | this.name = name; 20 | } 21 | 22 | public double getBalance() { 23 | return balance; 24 | } 25 | 26 | public void setBalance(double balance) { 27 | this.balance = balance; 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/template/CharDisplay.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.template; 2 | 3 | /** 4 | * Last Modify: 2019-05-24 5 | * 6 | * @author Q-WHai 7 | * @see https://github.com/qwhai 8 | */ 9 | public class CharDisplay extends AbstractDisplay { 10 | private char _ch; 11 | 12 | public CharDisplay(char ch){ 13 | this._ch = ch; 14 | } 15 | 16 | @Override 17 | public void open() { 18 | System.out.print("<<"); 19 | } 20 | 21 | @Override 22 | public void print() { 23 | System.out.print(this._ch); 24 | } 25 | 26 | @Override 27 | public void close() { 28 | System.out.println(">>"); 29 | } 30 | } -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/factory/abstr/framework/RedShapeFactory.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.factory.abstr.framework; 2 | 3 | import pers.hai.sample.dp.factory.abstr.shape.RedCircularShape; 4 | import pers.hai.sample.dp.factory.abstr.shape.RedSquarenessShape; 5 | 6 | /** 7 | * Last Modify: 2019-05-24 8 | * 9 | * @author Q-WHai 10 | * @see https://github.com/qwhai 11 | */ 12 | public class RedShapeFactory implements ShapeFactory { 13 | 14 | @Override 15 | public Shape createCircular() { 16 | return new RedCircularShape(); 17 | } 18 | 19 | @Override 20 | public Shape createSquareness() { 21 | return new RedSquarenessShape(); 22 | } 23 | } 24 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/singleton/Settings.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.singleton; 2 | 3 | import java.util.UUID; 4 | 5 | /** 6 | * Last Modify: 2019-05-24 7 | * 8 | * @author Q-WHai 9 | * @see https://github.com/qwhai 10 | */ 11 | public class Settings { 12 | 13 | private String uuid; 14 | 15 | private static Settings instance; 16 | 17 | public static Settings getInstance() { 18 | if (null == instance) instance = new Settings(); 19 | 20 | return instance; 21 | } 22 | 23 | public String getUuid() { 24 | return uuid; 25 | } 26 | 27 | private Settings() 28 | { 29 | uuid = UUID.randomUUID().toString(); 30 | } 31 | } 32 | -------------------------------------------------------------------------------- /src/main/java/pers/hai/sample/dp/prototype/Manager.java: -------------------------------------------------------------------------------- 1 | package pers.hai.sample.dp.prototype; 2 | 3 | import java.util.HashMap; 4 | import java.util.Map; 5 | 6 | /** 7 | * TODO 8 | *
9 | * Create Time: 2019/5/21 21:42
10 | * Last Modify: 2019/5/21
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class Manager {
16 |
17 | private Map
8 | * Create Time: 2019-05-29 17:34
9 | * Last Modify: 2019-05-29
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class PrintBanner extends Print {
15 |
16 | private Banner banner;
17 |
18 | public PrintBanner(String name) {
19 | banner = new Banner(name);
20 | }
21 |
22 | @Override
23 | public void printWeak() {
24 | banner.showWithParen();
25 | }
26 |
27 | @Override
28 | public void printStrong() {
29 | banner.showWithAster();
30 | }
31 | }
32 |
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/src/main/java/pers/hai/sample/dp/interpreter/ProgramNode.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.interpreter;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 17:46
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class ProgramNode extends Node {
13 |
14 | private Node commandListNode;
15 |
16 | @Override
17 | public void parse(Context context) throws ParseException {
18 | context.skipToken("program");
19 | commandListNode = new CommandListNode();
20 | commandListNode.parse(context);
21 | }
22 |
23 | @Override
24 | public String toString() {
25 | return String.format("[program %s]", commandListNode);
26 | }
27 | }
28 |
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/src/main/java/pers/hai/sample/dp/bridge/Display.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.bridge;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-05-29 17:53
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class Display {
13 | private DisplayImpl impl;
14 | public Display(DisplayImpl impl) {
15 | this.impl = impl;
16 | }
17 |
18 | public void open() {
19 | impl.rawOpen();
20 | }
21 |
22 | public void print() {
23 | impl.rawPrint();
24 | }
25 |
26 | public void close() {
27 | impl.rawClose();
28 | }
29 |
30 | public final void display() {
31 | open();
32 | print();
33 | close();
34 | }
35 | }
36 |
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/src/main/java/pers/hai/sample/dp/decorator/StringDisplay.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.decorator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 18:01
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class StringDisplay extends Display {
13 |
14 | private String content;
15 |
16 | public StringDisplay(String content) {
17 | this.content = content;
18 | }
19 |
20 | @Override
21 | int getRows() {
22 | return 1;
23 | }
24 |
25 | @Override
26 | int getColumns() {
27 | return content.length();
28 | }
29 |
30 | @Override
31 | String getRowText(int row) {
32 | return 0 == row ? content : null;
33 | }
34 | }
35 |
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/src/main/java/pers/hai/sample/dp/adapter/inherit/Banner.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.adapter.inherit;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-05-29 17:22
9 | * Last Modify: 2019-05-29
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class Banner {
15 |
16 | private final Logger logger = Logger.getLogger(Banner.class);
17 |
18 | private String name;
19 |
20 | public Banner(String name) {
21 | this.name = name;
22 | }
23 |
24 | public void showWithParen() {
25 | logger.info(String.format("(%s)", name));
26 | }
27 |
28 | public void showWithAster() {
29 | logger.info(String.format("*%s*", name));
30 | }
31 | }
32 |
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/src/main/java/pers/hai/sample/dp/observer/GraphObserver.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.observer;
2 |
3 | import pers.hai.sample.dp.observer.framework.NumberGenerator;
4 | import pers.hai.sample.dp.observer.framework.Observer;
5 |
6 | /**
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class GraphObserver implements Observer {
13 |
14 | @Override
15 | public void update(NumberGenerator generator) {
16 | StringBuilder sb = new StringBuilder();
17 | for (int i = 0; i < generator.getNumber(); i++) {
18 | sb.append("*");
19 | }
20 | System.out.println(String.format("Graph Observer 接收到 %s 发布的更新：%s", generator.getName(), sb.toString()));
21 | }
22 | }
23 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/virtual1/ITicketable.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.virtual1;
2 |
3 | import java.util.HashMap;
4 | import java.util.Map;
5 |
6 | /**
7 | * 可售票的
8 | *
9 | * Create Time: 2019-04-05 22:54
10 | * Last Modify: 2019-05-24
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public interface ITicketable {
16 |
17 | Map
6 | * Create Time: 2019-05-30 09:39
7 | * Last Modify: 2019-05-30
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public abstract class Entry {
13 | public abstract String getName();
14 | public abstract int getSize();
15 | public Entry add(Entry entry) throws FileTreatMentException {
16 | throw new FileTreatMentException();
17 | }
18 |
19 | public void printList() {
20 | printList("");
21 | }
22 |
23 | protected abstract void printList(String prefix);
24 |
25 | @Override
26 | public String toString() {
27 | return String.format("%s (%d)", getName(), getSize());
28 | }
29 | }
30 |
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/src/main/java/pers/hai/sample/dp/memento/Memento.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.memento;
2 |
3 | import java.util.ArrayList;
4 | import java.util.List;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-06-13 17:10
10 | * Last Modify: 2019-06-13
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class Memento {
16 |
17 | private int money;
18 | private List
8 | * Create Time: 2019-05-29 17:27
9 | * Last Modify: 2019-05-29
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class AdapterTests extends Testable {
15 |
16 | @Test
17 | public void test1() {
18 | pers.hai.sample.dp.adapter.inherit.Print p = new pers.hai.sample.dp.adapter.inherit.PrintBanner("Hello");
19 | p.printWeak();
20 | p.printStrong();
21 | }
22 |
23 | @Test
24 | public void test2() {
25 | pers.hai.sample.dp.adapter.entrust.Print p = new pers.hai.sample.dp.adapter.entrust.PrintBanner("Hello");
26 | p.printWeak();
27 | p.printStrong();
28 | }
29 | }
30 |
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/src/test/java/pers/hai/sample/dp/FactoryMethodTest.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.factory.method.framework.Factory;
4 | import pers.hai.sample.dp.factory.method.framework.Product;
5 | import pers.hai.sample.dp.factory.method.idcard.IDCardFactory;
6 | import org.junit.Test;
7 |
8 | import java.util.List;
9 |
10 | public class FactoryMethodTest {
11 |
12 | @Test
13 | public void IDCardFactoryTest() {
14 | Factory factory = new IDCardFactory();
15 |
16 | Product p1 = factory.create("小明");
17 | p1.recharge(500);
18 | p1.use(100);
19 |
20 | Product p2 = factory.create("小红");
21 | p2.recharge(550);
22 | p2.use(300);
23 |
24 | List
6 | * Create Time: 2019-06-14 17:50
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class PrimitiveCommandNode extends Node {
13 |
14 | private String name;
15 |
16 | @Override
17 | public void parse(Context context) throws ParseException {
18 | name = context.currentToken();
19 | context.skipToken(name);
20 | if (!name.equals("go") && !name.equals("right") && !name.equals("left"))
21 | throw new ParseException(String.format("%s is undefined.", name));
22 | }
23 |
24 | @Override
25 | public String toString() {
26 | return name;
27 | }
28 | }
29 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/state/RunningState.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.state;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 16:46
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class RunningState extends State {
13 |
14 | @Override
15 | public void open() {
16 | throw new StateLimitException("电梯正在运行，无法进行开门操作");
17 | }
18 |
19 | @Override
20 | public void close() {
21 | throw new StateLimitException("电梯正在运行，无法进行关门操作");
22 | }
23 |
24 | @Override
25 | public void run() {
26 | logger.info("电梯正在运行中...");
27 | }
28 |
29 | @Override
30 | public void stop() {
31 | this.context.switchState(Lift.stoppingState);
32 | this.context.stop();
33 | }
34 | }
35 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/iterator/BookShelfIterator.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.iterator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-05-29 16:45
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class BookShelfIterator implements Iterator {
13 |
14 | private BookShelf bookShelf;
15 | private int index;
16 |
17 | public BookShelfIterator(BookShelf bookShelf) {
18 | this.bookShelf = bookShelf;
19 | index = 0;
20 | }
21 |
22 | @Override
23 | public boolean hasNext() {
24 | return index < bookShelf.getLength();
25 | }
26 |
27 | @Override
28 | public Object next() {
29 | Book book = bookShelf.getBookAt(index);
30 | index++;
31 | return book;
32 | }
33 | }
34 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/state/State.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.state;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-04-10 16:41
9 | * Last Modify: 2019-05-24
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | abstract class State {
15 |
16 | protected Logger logger = Logger.getLogger(State.class);
17 | protected Lift context;
18 |
19 | void setContext(Lift context) {
20 | this.context = context;
21 | }
22 |
23 | /**
24 | * 开门
25 | */
26 | abstract void open();
27 |
28 | /**
29 | * 关门
30 | */
31 | abstract void close();
32 |
33 | /**
34 | * 启动
35 | */
36 | abstract void run();
37 |
38 | /**
39 | * 停止
40 | */
41 | abstract void stop();
42 | }
43 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/composite/File.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.composite;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-05-30 09:41
7 | * Last Modify: 2019-05-30
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class File extends Entry {
13 |
14 | private String name;
15 | private int size;
16 |
17 | public File(String name, int size) {
18 | this.name = name;
19 | this.size = size;
20 | }
21 |
22 | @Override
23 | public String getName() {
24 | return name;
25 | }
26 |
27 | @Override
28 | public int getSize() {
29 | return size;
30 | }
31 |
32 | @Override
33 | protected void printList(String prefix) {
34 | System.out.println(String.format("%s/%s", prefix, this));
35 | }
36 | }
37 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/interpreter/CommandNode.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.interpreter;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 17:49
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class CommandNode extends Node {
13 |
14 | private Node node;
15 |
16 | @Override
17 | public void parse(Context context) throws ParseException {
18 | if (context.currentToken().equals("repeat")) {
19 | node = new RepeatCommandNode();
20 | node.parse(context);
21 | } else {
22 | node = new PrimitiveCommandNode();
23 | node.parse(context);
24 | }
25 | }
26 |
27 | @Override
28 | public String toString() {
29 | return node.toString();
30 | }
31 | }
32 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/state/StoppingState.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.state;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 16:46
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class StoppingState extends State {
13 |
14 | @Override
15 | public void open() {
16 | this.context.switchState(Lift.openningState);
17 | this.context.open();
18 | }
19 |
20 | @Override
21 | public void close() {
22 | throw new StateLimitException("电梯已停止，无法关闭");
23 | }
24 |
25 | @Override
26 | public void run() {
27 | this.context.switchState(Lift.runningState);
28 | this.context.run();
29 | }
30 |
31 | @Override
32 | public void stop() {
33 | logger.info("电梯已停止运行");
34 | }
35 | }
36 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/state/ClosingState.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.state;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 16:45
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class ClosingState extends State {
13 |
14 | @Override
15 | public void open() {
16 | this.context.switchState(Lift.openningState);
17 | this.context.open();
18 | }
19 |
20 | @Override
21 | public void close() {
22 | logger.info("电梯正在关门，请稍等");
23 | }
24 |
25 | @Override
26 | public void run() {
27 | this.context.switchState(Lift.runningState);
28 | this.context.run();
29 | }
30 |
31 | @Override
32 | public void stop() {
33 | throw new StateLimitException("电梯正在关门，无法停止");
34 | }
35 | }
36 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/mediator/Tenant.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.mediator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 14:30
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class Tenant extends Person{
13 |
14 | public Tenant(String name, Mediator mediator) {
15 | super(name, mediator);
16 | }
17 |
18 | /**
19 | * @desc 与中介者联系
20 | * @param message
21 | * @return void
22 | */
23 | public void constact(String message){
24 | mediator.constact(message, this);
25 | }
26 |
27 | /**
28 | * @desc 获取信息
29 | * @param message
30 | * @return void
31 | */
32 | public void getMessage(String message){
33 | System.out.println("租房者:" + name +",获得信息：" + message);
34 | }
35 | }
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/builder/Director.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.builder;
2 |
3 | /**
4 | * 文档类
5 | *
6 | * Create Time: 2019/5/25 23:19
7 | * Last Modify: 2019/5/25
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class Director {
13 | private Builder builder;
14 |
15 | public Director(Builder builder) {
16 | this.builder = builder;
17 | }
18 |
19 | public void construct() {
20 | builder.makeTitle("Greeting");
21 | builder.makeString("从早上到下午");
22 | builder.makeItems(new String[] {
23 | "早上好。",
24 | "下午好。"
25 | });
26 | builder.makeString("晚上");
27 | builder.makeItems(new String[] {
28 | "晚上好。",
29 | "晚安。"
30 | });
31 | builder.close();
32 | }
33 | }
34 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/strategy/WinningStrategy.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.strategy;
2 |
3 | import java.util.Random;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-05-29 18:26
9 | * Last Modify: 2019-05-29
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class WinningStrategy implements Strategy {
15 |
16 | private Random random;
17 | private boolean won = false;
18 | private Hand prevHand;
19 |
20 | public WinningStrategy(int seed) {
21 | random = new Random(seed);
22 | }
23 |
24 | @Override
25 | public Hand nextHand() {
26 | if (!won)
27 | prevHand = Hand.getHand(random.nextInt(3));
28 |
29 | return prevHand;
30 | }
31 |
32 | @Override
33 | public void study(boolean win) {
34 | won = win;
35 | }
36 | }
37 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/mediator/HouseOwner.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.mediator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 14:29
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class HouseOwner extends Person{
13 |
14 | public HouseOwner(String name, Mediator mediator) {
15 | super(name, mediator);
16 | }
17 |
18 | /**
19 | * @desc 与中介者联系
20 | * @param message
21 | * @return void
22 | */
23 | public void constact(String message){
24 | mediator.constact(message, this);
25 | }
26 |
27 | /**
28 | * @desc 获取信息
29 | * @param message
30 | * @return void
31 | */
32 | public void getMessage(String message){
33 | System.out.println("房主:" + name +", 获得信息：" + message);
34 | }
35 | }
36 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/interpreter/RepeatCommandNode.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.interpreter;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 17:49
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class RepeatCommandNode extends Node {
13 |
14 | private int number;
15 | private Node commandListNode;
16 |
17 | @Override
18 | public void parse(Context context) throws ParseException {
19 | context.skipToken("repeat");
20 | number = context.currentNumber();
21 | context.nextToken();
22 | commandListNode = new CommandListNode();
23 | commandListNode.parse(context);
24 | }
25 |
26 | @Override
27 | public String toString() {
28 | return String.format("[repeat %d %s]", number, commandListNode);
29 | }
30 | }
31 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/singleton/Settings2.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.singleton;
2 |
3 | import java.util.UUID;
4 |
5 | /**
6 | * Last Modify: 2019-05-24
7 | *
8 | * @author Q-WHai
9 | * @see https://github.com/qwhai
10 | */
11 | public class Settings2 {
12 |
13 | private String uuid;
14 |
15 | private volatile static Settings2 instance;
16 |
17 | public static Settings2 getInstance() {
18 | if (null == instance) {
19 | synchronized (Settings2.class) {
20 | if (null == instance) {
21 | instance = new Settings2();
22 | }
23 | }
24 | }
25 |
26 | return instance;
27 | }
28 |
29 | public String getUuid() {
30 | return uuid;
31 | }
32 |
33 | private Settings2()
34 | {
35 | uuid = UUID.randomUUID().toString();
36 | }
37 | }
38 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/BridgeTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import org.junit.Test;
4 | import pers.hai.sample.dp.bridge.CountDisplay;
5 | import pers.hai.sample.dp.bridge.Display;
6 | import pers.hai.sample.dp.bridge.StringDisplayImpl;
7 |
8 | /**
9 | * TODO
10 | *
11 | * Create Time: 2019-05-29 18:04
12 | * Last Modify: 2019-05-29
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class BridgeTests {
18 |
19 | @Test
20 | public void test1() {
21 | Display d1 = new Display(new StringDisplayImpl("Hello, China"));
22 | Display d2 = new CountDisplay(new StringDisplayImpl("Hello, World"));
23 | CountDisplay d3 = new CountDisplay(new StringDisplayImpl("Hello, Universe"));
24 |
25 | d1.display();
26 | d2.display();
27 | d3.display();
28 | d3.multiDisplay(10);
29 | }
30 | }
31 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/factory/method/idcard/IDCardFactory.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.factory.method.idcard;
2 |
3 | import pers.hai.sample.dp.factory.method.framework.Factory;
4 | import pers.hai.sample.dp.factory.method.framework.Product;
5 |
6 | import java.util.ArrayList;
7 | import java.util.List;
8 |
9 | /**
10 | * Last Modify: 2019-05-24
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class IDCardFactory extends Factory {
16 |
17 | private List
6 | * Create Time: 2019-05-29 16:41
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class BookShelf implements Aggregate {
13 |
14 | private Book[] books;
15 | private int last = 0;
16 |
17 | public BookShelf(int maxSize) {
18 | books = new Book[maxSize];
19 | }
20 |
21 | public Book getBookAt(int index) {
22 | return books[index];
23 | }
24 |
25 | public void appendBook(Book book) {
26 | if (last >= books.length) return;
27 |
28 | books[last] = book;
29 | last++;
30 | }
31 |
32 | public int getLength() {
33 | return last;
34 | }
35 |
36 | @Override
37 | public Iterator iterator() {
38 | return new BookShelfIterator(this);
39 | }
40 | }
41 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/dynamic/ITicketable.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.dynamic;
2 |
3 | import pers.hai.sample.dp.proxy.dynamic.model.StationPort;
4 | import pers.hai.sample.dp.proxy.dynamic.model.TravelPorts;
5 |
6 | import java.util.HashMap;
7 | import java.util.Map;
8 |
9 | /**
10 | * TODO
11 | *
12 | * Create Time: 2019-04-10 10:50
13 | * Last Modify: 2019-05-24
14 | *
15 | * @author Q-WHai
16 | * @see https://github.com/qwhai
17 | */
18 | public interface ITicketable {
19 |
20 | Map
11 | * Create Time: 2019-06-14 14:01
12 | * Last Modify: 2019-06-14
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class MediatorTests extends Testable {
18 |
19 | @Test
20 | public void test1() {
21 | MediatorStructure mediator = new MediatorStructure();
22 |
23 | HouseOwner houseOwner = new HouseOwner("张三", mediator);
24 | Tenant tenant = new Tenant("李四", mediator);
25 |
26 | //中介结构要知道房主和租房者
27 | mediator.setHouseOwner(houseOwner);
28 | mediator.setTenant(tenant);
29 |
30 | tenant.constact("听说你那里有三室的房主出租.....");
31 | houseOwner.constact("是的!请问你需要租吗?");
32 | }
33 | }
34 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/ChainTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import org.junit.Test;
4 | import pers.hai.sample.dp.cor.*;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-06-14 14:46
10 | * Last Modify: 2019-06-14
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class ChainTests extends Testable {
16 |
17 | @Test
18 | public void test1() {
19 | Support alice = new NoSupport("Alice");
20 | Support bob = new LimitSupport("Bob", 100);
21 | Support charlie = new SpecialSupport("Charlie", 429);
22 | Support diana = new LimitSupport("Diana", 200);
23 | Support elmo = new OddSupport("Elmo");
24 | Support fred = new LimitSupport("Fred", 300);
25 |
26 | alice.setNext(bob).setNext(charlie).setNext(diana).setNext(elmo).setNext(fred);
27 |
28 | for (int i = 0; i < 500; i+=33) {
29 | alice.support(new Trouble(i));
30 | }
31 | }
32 | }
33 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/template/StringDisplay.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.template;
2 |
3 | /**
4 | * Last Modify: 2019-05-24
5 | *
6 | * @author Q-WHai
7 | * @see https://github.com/qwhai
8 | */
9 | public class StringDisplay extends AbstractDisplay {
10 |
11 | private int _width;
12 | private String _text;
13 |
14 | public StringDisplay(String text){
15 | this._text = text;
16 | this._width = this._text.length();
17 | }
18 |
19 | @Override
20 | public void open() {
21 | printLine();
22 | }
23 |
24 | @Override
25 | public void print() {
26 | System.out.println("|" + _text + "|");
27 | }
28 |
29 | @Override
30 | public void close() {
31 | printLine();
32 | }
33 |
34 | private void printLine() {
35 | System.out.print("+");
36 | for (int i = 0; i < _width; i ++) {
37 | System.out.print("-");
38 | }
39 | System.out.println("+");
40 | }
41 | }
42 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/FactoryAbstractTest.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.factory.abstr.framework.BlueShapeFactory;
4 | import pers.hai.sample.dp.factory.abstr.framework.RedShapeFactory;
5 | import pers.hai.sample.dp.factory.abstr.framework.Shape;
6 | import pers.hai.sample.dp.factory.abstr.framework.ShapeFactory;
7 | import org.junit.Test;
8 |
9 | public class FactoryAbstractTest {
10 |
11 | @Test
12 | public void test1() {
13 | ShapeFactory factory1 = new BlueShapeFactory();
14 | {
15 | Shape shape1 = factory1.createCircular();
16 | shape1.show();
17 |
18 | Shape shape2 = factory1.createSquareness();
19 | shape2.show();
20 | }
21 |
22 | ShapeFactory factory2 = new RedShapeFactory();
23 | {
24 | Shape shape1 = factory2.createCircular();
25 | shape1.show();
26 |
27 | Shape shape2 = factory2.createSquareness();
28 | shape2.show();
29 | }
30 | }
31 | }
32 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/dynamic/model/StationPort.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.dynamic.model;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 14:27
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class StationPort {
13 | private String name;
14 |
15 | public StationPort(String name) {
16 | this.name = name;
17 | }
18 |
19 | public void setName(String name) {
20 | this.name = name;
21 | }
22 |
23 | public String getName() {
24 | return name;
25 | }
26 |
27 | @Override
28 | public boolean equals(Object obj) {
29 | if (!(obj instanceof StationPort)) return false;
30 | return hashCode() == obj.hashCode();
31 | }
32 |
33 | @Override
34 | public int hashCode() {
35 | return getName().hashCode();
36 | }
37 |
38 | @Override
39 | public String toString() {
40 | return String.format("[%s]", getName());
41 | }
42 | }
43 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/dynamic/model/TravelPorts.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.dynamic.model;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 15:14
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class TravelPorts {
13 | private StationPort from;
14 | private StationPort to;
15 |
16 | public TravelPorts(String from, String to) {
17 | this.from = new StationPort(from);
18 | this.to = new StationPort(to);
19 | }
20 |
21 | @Override
22 | public boolean equals(Object obj) {
23 | if (!(obj instanceof TravelPorts)) return false;
24 | return hashCode() == obj.hashCode();
25 | }
26 |
27 | @Override
28 | public int hashCode() {
29 | return String.format("%s|%s", from.getName(), to.getName()).hashCode();
30 | }
31 |
32 | @Override
33 | public String toString() {
34 | return String.format("[%s->%s]", from.getName(), to.getName());
35 | }
36 | }
37 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/visitor/ConcreteVisitor.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.visitor;
2 |
3 | import java.util.Collection;
4 | import java.util.Iterator;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-06-14 11:21
10 | * Last Modify: 2019-06-14
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class ConcreteVisitor implements Visitor {
16 | //在本方法中,我们实现了对 Collection 的元素的成功访问
17 | public void visitCollection(Collection collection) {
18 | Iterator iterator = collection.iterator();
19 | while (iterator.hasNext()) {
20 | Object o = iterator.next();
21 | if (o instanceof Visitable)
22 | ((Visitable) o).accept(this);
23 | }
24 | }
25 |
26 | public void visitString(StringElement stringE) {
27 | System.out.println("'"+stringE.getValue()+"'");
28 | }
29 |
30 | public void visitFloat(FloatElement floatE) {
31 | System.out.println(floatE.getValue().toString()+"f");
32 | }
33 | }
34 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/flyweight/Circular.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.flyweight;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-06-03 18:04
9 | * Last Modify: 2019-06-03
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class Circular implements Shape {
15 |
16 | private final Logger logger = Logger.getLogger(Circular.class);
17 |
18 | private String color;
19 | private double x;
20 | private double y;
21 | private double r;
22 |
23 | public Circular(String color) {
24 | this.color = color;
25 | }
26 |
27 | public void setX(double x) {
28 | this.x = x;
29 | }
30 |
31 | public void setY(double y) {
32 | this.y = y;
33 | }
34 |
35 | public void setR(double r) {
36 | this.r = r;
37 | }
38 |
39 | @Override
40 | public void draw() {
41 | logger.info(String.format("Circular: color = %s, x = %s, y = %s, r = %s", color, x, y , r));
42 | }
43 | }
44 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/mediator/MediatorStructure.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.mediator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-06-14 14:30
7 | * Last Modify: 2019-06-14
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class MediatorStructure extends Mediator{
13 | //首先中介结构必须知道所有房主和租房者的信息
14 | private HouseOwner houseOwner;
15 | private Tenant tenant;
16 |
17 | public HouseOwner getHouseOwner() {
18 | return houseOwner;
19 | }
20 |
21 | public void setHouseOwner(HouseOwner houseOwner) {
22 | this.houseOwner = houseOwner;
23 | }
24 |
25 | public Tenant getTenant() {
26 | return tenant;
27 | }
28 |
29 | public void setTenant(Tenant tenant) {
30 | this.tenant = tenant;
31 | }
32 |
33 | public void constact(String message, Person person) {
34 | if(person == houseOwner)
35 | tenant.getMessage(message);
36 | else
37 | houseOwner.getMessage(message);
38 | }
39 | }
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/virtual2/PrinterProxy.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.virtual2;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-07 18:05
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class PrinterProxy implements Printable {
13 |
14 | private String name;
15 | private Printer real;
16 |
17 | public PrinterProxy(String name) {
18 | this.name = name;
19 | }
20 |
21 | public String getName() {
22 | return name;
23 | }
24 |
25 | public synchronized void setName(String name) {
26 | if (null != real) {
27 | real.setName(name);
28 | }
29 |
30 | this.name = name;
31 | }
32 |
33 | @Override
34 | public void print(String content) {
35 | realize();
36 | real.print(content);
37 | }
38 |
39 | private synchronized void realize() {
40 | if (null == real) {
41 | real = new Printer(this.name);
42 | }
43 | }
44 | }
45 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/IteratorTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.iterator.Book;
4 | import pers.hai.sample.dp.iterator.BookShelf;
5 | import pers.hai.sample.dp.iterator.Iterator;
6 | import org.junit.Test;
7 |
8 | /**
9 | * TODO
10 | *
11 | * Create Time: 2019-05-29 16:38
12 | * Last Modify: 2019-05-29
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class IteratorTests extends Testable {
18 |
19 | @Test
20 | public void test1() {
21 | BookShelf bookShelf = new BookShelf(5);
22 | bookShelf.appendBook(new Book("Java 编程思想"));
23 | bookShelf.appendBook(new Book("深入理解 Java 虚拟机"));
24 | bookShelf.appendBook(new Book("Java 核心技术·卷I：基础知识"));
25 | bookShelf.appendBook(new Book("Java 核心技术·卷II: 高级特性"));
26 | bookShelf.appendBook(new Book("Effective Java"));
27 |
28 | Iterator iterator = bookShelf.iterator();
29 | while (iterator.hasNext()) {
30 | logger.info(iterator.next());
31 | }
32 | }
33 | }
34 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/prototype/UnderlinePen.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.prototype;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019/5/21 21:49
7 | * Last Modify: 2019/5/21
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class UnderlinePen implements Product {
13 |
14 | private char ulchar;
15 |
16 | public UnderlinePen(char ulchar) {
17 | this.ulchar = ulchar;
18 | }
19 |
20 | public void use(String s) {
21 | int length = s.getBytes().length;
22 | System.out.println("\"" + s + "\"");
23 | System.out.print(" ");
24 | for (int i = 0; i < length; i++) {
25 | System.out.print(ulchar);
26 | }
27 |
28 | System.out.println("");
29 | }
30 |
31 | @Override
32 | public Product createClone() {
33 | Product p = null;
34 | try {
35 | p = (Product) clone();
36 | } catch (CloneNotSupportedException ex) {
37 | ex.printStackTrace();
38 | }
39 |
40 | return p;
41 | }
42 | }
43 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/bridge/StringDisplayImpl.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.bridge;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-05-29 18:01
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class StringDisplayImpl extends DisplayImpl {
13 |
14 | private String label;
15 | private int width;
16 |
17 | public StringDisplayImpl(String label) {
18 | this.label = label;
19 | this.width = label.getBytes().length;
20 | }
21 |
22 | @Override
23 | public void rawOpen() {
24 | printLine();
25 | }
26 |
27 | @Override
28 | public void rawPrint() {
29 | System.out.println(String.format("|%s|", label));
30 | }
31 |
32 | @Override
33 | public void rawClose() {
34 | printLine();
35 | }
36 |
37 | private void printLine() {
38 | System.out.print("+");
39 | for (int i = 0; i < width; i++) {
40 | System.out.print("-");
41 | }
42 | System.out.println("+");
43 | }
44 | }
45 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/StatePatternTest.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.state.Lift;
4 | import pers.hai.sample.dp.state.StoppingState;
5 | import org.junit.Test;
6 |
7 | /**
8 | * TODO
9 | *
10 | * Create Time: 2019-04-10 16:40
11 | * Last Modify: 2019-05-24
12 | *
13 | * @author Q-WHai
14 | * @see https://github.com/qwhai
15 | */
16 | public class StatePatternTest {
17 |
18 | // 正常情况下的测试
19 | @Test
20 | public void test1() {
21 | Lift context = new Lift(new StoppingState());
22 | context.open();
23 | context.close();
24 | context.run();
25 | context.stop();
26 | context.open();
27 | context.close();
28 | }
29 |
30 | // 异常情况下的测试
31 | @Test
32 | public void test2() {
33 | Lift context = new Lift(new StoppingState());
34 | context.close();
35 | context.open();
36 | context.close();
37 | context.run();
38 | context.open();
39 | context.stop();
40 | context.open();
41 | context.close();
42 | }
43 | }
44 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/BuilderTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import org.junit.Test;
4 | import pers.hai.sample.dp.builder.Director;
5 | import pers.hai.sample.dp.builder.HTMLBuilder;
6 | import pers.hai.sample.dp.builder.TextBuilder;
7 |
8 | /**
9 | * TODO
10 | *
11 | * Create Time: 2019/5/25 23:36
12 | * Last Modify: 2019/5/25
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class BuilderTests extends Testable {
18 |
19 | @Test
20 | public void testPlain() {
21 | TextBuilder builder = new TextBuilder();
22 | Director director = new Director(builder);
23 | director.construct();
24 |
25 | String result = builder.getResult();
26 | logger.info(result);
27 | }
28 |
29 | @Test
30 | public void testHTML() {
31 | HTMLBuilder builder = new HTMLBuilder();
32 | Director director = new Director(builder);
33 | director.construct();
34 |
35 | String fileName = builder.getResult();
36 | logger.info(String.format("%s文件编写完成", fileName));
37 | }
38 | }
39 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/interpreter/CommandListNode.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.interpreter;
2 |
3 | import java.util.ArrayList;
4 | import java.util.List;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-06-14 17:49
10 | * Last Modify: 2019-06-14
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class CommandListNode extends Node {
16 |
17 | private List
15 | * Create Time: 2019-06-13 18:40
16 | * Last Modify: 2019-06-13
17 | *
18 | * @author Q-WHai
19 | * @see https://github.com/qwhai
20 | */
21 | public class VisitorTests extends Testable {
22 |
23 | @Test
24 | public void test1() {
25 | Visitor visitor = new ConcreteVisitor();
26 | StringElement stringE = new StringElement("I am a String");
27 | visitor.visitString(stringE);
28 | Collection list = new ArrayList();
29 | list.add(new StringElement("I am a String1"));
30 | list.add(new StringElement("I am a String2"));
31 | list.add(new FloatElement(new Float(12)));
32 | list.add(new StringElement("I am a String3"));
33 | visitor.visitCollection(list);
34 | }
35 |
36 | }
37 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/factory/method/idcard/IDCard.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.factory.method.idcard;
2 |
3 | import pers.hai.sample.dp.factory.method.framework.Product;
4 | import pers.hai.sample.dp.factory.method.model.Account;
5 |
6 | /**
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class IDCard extends Product {
13 |
14 | private Account account = new Account();
15 |
16 | public IDCard(String name){
17 | account.setName(name);
18 | account.setBalance(0);
19 | }
20 |
21 | @Override
22 | public void recharge(double x) {
23 | account.setBalance(account.getBalance() + x);
24 | System.out.println(String.format("向 %s 的账户充值 %d 元，余额：%d元", account.getName(), (int)x, (int)account.getBalance()));
25 | }
26 |
27 | @Override
28 | public void use(double x) {
29 | account.setBalance(account.getBalance() - x);
30 | System.out.println(String.format("从 %s 的账户消费 %d 元，余额：%d元", account.getName(), (int)x, (int)account.getBalance()));
31 | }
32 |
33 | public String getOwner() {
34 | return account.getName();
35 | }
36 | }
37 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/strategy/Player.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.strategy;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-05-29 18:33
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class Player {
13 | private String name;
14 | private Strategy strategy;
15 | private int wincount;
16 | private int losecount;
17 | private int gamecount;
18 |
19 | public Player(String name, Strategy strategy) {
20 | this.name = name;
21 | this.strategy = strategy;
22 | }
23 |
24 | public Hand nextHand() {
25 | return strategy.nextHand();
26 | }
27 |
28 | public void win() {
29 | strategy.study(true);
30 | wincount++;
31 | gamecount++;
32 | }
33 |
34 | public void lose() {
35 | strategy.study(false);
36 | losecount++;
37 | gamecount++;
38 | }
39 |
40 | public void even() {
41 | gamecount++;
42 | }
43 |
44 | @Override
45 | public String toString() {
46 | return String.format("[%s:%d games, %d win, %d lose.]", name, gamecount, wincount, losecount);
47 | }
48 | }
49 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/builder/TextBuilder.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.builder;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019/5/25 23:20
7 | * Last Modify: 2019/5/25
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class TextBuilder extends Builder {
13 |
14 | private StringBuilder sb = new StringBuilder();
15 |
16 | @Override
17 | public void makeTitle(String title) {
18 | sb.append("=========================\n");
19 | sb.append(String.format("『%s』\n", title));
20 | sb.append("\n");
21 | }
22 |
23 | @Override
24 | public void makeString(String content) {
25 | sb.append(String.format("·%s\n", content));
26 | sb.append("\n");
27 | }
28 |
29 | @Override
30 | public void makeItems(String[] items) {
31 | for (String item : items) {
32 | sb.append(String.format(" ·%s\n", item));
33 | }
34 | sb.append("\n");
35 | }
36 |
37 | @Override
38 | public void close() {
39 | sb.append("=========================\n");
40 | }
41 |
42 | public String getResult() {
43 | return sb.toString();
44 | }
45 | }
46 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/decorator/FullBorder.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.decorator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 18:01
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class FullBorder extends Border {
13 |
14 | private Display display;
15 |
16 | public FullBorder(Display display) {
17 | this.display = display;
18 | }
19 |
20 | @Override
21 | int getRows() {
22 | return 1 + display.getRows() + 1;
23 | }
24 |
25 | @Override
26 | int getColumns() {
27 | return 1 + display.getColumns() + 1;
28 | }
29 |
30 | @Override
31 | String getRowText(int row) {
32 | if (0 == row || getRows() - 1 == row) return generateLine();
33 | return String.format("|%s|", display.getRowText(row - 1));
34 | }
35 |
36 | private String generateLine() {
37 | StringBuilder sb = new StringBuilder();
38 | sb.append('+');
39 | for (int i = 0; i < display.getColumns(); i++) {
40 | sb.append('-');
41 | }
42 | sb.append('+');
43 |
44 | return sb.toString();
45 | }
46 | }
47 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/flyweight/ShapeFactory.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.flyweight;
2 |
3 | import java.util.HashMap;
4 | import java.util.Map;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-06-03 18:04
10 | * Last Modify: 2019-06-03
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class ShapeFactory {
16 |
17 | private Map
6 | * Create Time: 2019/5/21 21:45
7 | * Last Modify: 2019/5/21
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class MessageBox implements Product {
13 | private char decochar;
14 |
15 | public MessageBox(char decochar) {
16 | this.decochar = decochar;
17 | }
18 |
19 | public void use(String s) {
20 | int length = s.getBytes().length;
21 | for (int i = 0; i < length + 4; i++) {
22 | System.out.print(decochar);
23 | }
24 |
25 | System.out.println("");
26 | System.out.println(decochar + " " + s + " " + decochar);
27 |
28 | for (int i = 0; i < length + 4; i++) {
29 | System.out.print(decochar);
30 | }
31 | System.out.println("");
32 | }
33 |
34 | @Override
35 | public Product createClone() {
36 | Product p = null;
37 | try {
38 | p = (Product) clone();
39 | } catch (CloneNotSupportedException ex) {
40 | ex.printStackTrace();
41 | }
42 |
43 | return p;
44 | }
45 | }
46 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/decorator/SideBorder.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.decorator;
2 |
3 | /**
4 | * TODO
5 | *
6 | * Create Time: 2019-04-10 18:01
7 | * Last Modify: 2019-05-24
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class SideBorder extends Border {
13 |
14 | private Display display;
15 | private char left = '{';
16 | private char right = '}';
17 |
18 | public SideBorder(Display display) {
19 | this.display = display;
20 | }
21 |
22 | public SideBorder(Display display, char ch) {
23 | this.display = display;
24 | this.left = ch;
25 | this.right = ch;
26 | }
27 |
28 | public SideBorder(Display display, char left, char right) {
29 | this.display = display;
30 | this.left = left;
31 | this.right = right;
32 | }
33 |
34 | @Override
35 | int getRows() {
36 | return display.getRows();
37 | }
38 |
39 | @Override
40 | int getColumns() {
41 | return 1 + display.getColumns() + 1;
42 | }
43 |
44 | @Override
45 | String getRowText(int row) {
46 | return String.format("%s%s%s", left, display.getRowText(row), right);
47 | }
48 | }
49 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/flyweight/Rectangle.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.flyweight;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-06-03 18:18
9 | * Last Modify: 2019-06-03
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class Rectangle implements Shape {
15 |
16 | private final Logger logger = Logger.getLogger(Rectangle.class);
17 |
18 | private String color;
19 | private double x;
20 | private double y;
21 | private double width;
22 | private double height;
23 |
24 | public Rectangle(String color) {
25 | this.color = color;
26 | }
27 |
28 | public void setX(double x) {
29 | this.x = x;
30 | }
31 |
32 | public void setY(double y) {
33 | this.y = y;
34 | }
35 |
36 | public void setWidth(double width) {
37 | this.width = width;
38 | }
39 |
40 | public void setHeight(double height) {
41 | this.height = height;
42 | }
43 |
44 | @Override
45 | public void draw() {
46 | logger.info(String.format("Rectangle: color = %s, x = %s, y = %s, width = %s, height = %s", color, x, y , width, height));
47 | }
48 | }
49 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/access/WriterProxy.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.access;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * 作者（题主）代理
7 | *
8 | * Create Time: 2019-04-07 20:15
9 | * Last Modify: 2019-05-24
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class WriterProxy implements Forum {
15 |
16 | private Logger logger = Logger.getLogger(WriterProxy.class);
17 |
18 | @Override
19 | public void visit() {
20 | logger.info("题主正在访问话题");
21 | }
22 |
23 | @Override
24 | public void comment() {
25 | logger.info("题主正在评论话题");
26 | }
27 |
28 | @Override
29 | public void createTopic() throws UnauthorizedException {
30 | logger.info("题主正在创建话题");
31 | }
32 |
33 | @Override
34 | public void moidfyTopic() throws UnauthorizedException{
35 | logger.info("题主正在修改话题");
36 | }
37 |
38 | @Override
39 | public void deleteTopic() throws UnauthorizedException{
40 | logger.info("题主正在删除话题");
41 | }
42 |
43 | @Override
44 | public boolean auditTopic(String topicId) throws UnauthorizedException{
45 | throw new UnauthorizedException("题主无权审核话题");
46 | }
47 | }
48 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/PrototypeTest.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.prototype.Manager;
4 | import pers.hai.sample.dp.prototype.MessageBox;
5 | import pers.hai.sample.dp.prototype.Product;
6 | import pers.hai.sample.dp.prototype.UnderlinePen;
7 | import org.junit.Test;
8 |
9 | /**
10 | * TODO
11 | *
12 | * Create Time: 2019-05-21 21:51
13 | * Last Modify: 2019-05-24
14 | *
15 | * @author Q-WHai
16 | * @see https://github.com/qwhai
17 | */
18 | public class PrototypeTest {
19 |
20 | @Test
21 | public void test1() {
22 | Manager manager = new Manager();
23 | UnderlinePen upen = new UnderlinePen('~');
24 | MessageBox mbox = new MessageBox('*');
25 | MessageBox sbox = new MessageBox('/');
26 |
27 | manager.register("strong message", upen);
28 | manager.register("warning box", mbox);
29 | manager.register("slash box", sbox);
30 |
31 | Product p1 = manager.create("strong message");
32 | p1.use("Hello, world.");
33 |
34 | Product p2 = manager.create("warning box");
35 | p2.use("Hello, world.");
36 |
37 | Product p3 = manager.create("slash box");
38 | p3.use("Hello, world.");
39 | }
40 | }
41 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/SingletonPatternTest.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import pers.hai.sample.dp.singleton.Settings;
4 | import pers.hai.sample.dp.singleton.Settings2;
5 | import org.junit.Assert;
6 | import org.junit.Test;
7 |
8 | /**
9 | * TODO
10 | *
11 | * Create Time: 2019-04-12 18:10
12 | * Last Modify: 2019-05-24
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class SingletonPatternTest {
18 |
19 | @Test
20 | public void test1() {
21 | Settings s1 = Settings.getInstance();
22 | Settings s2 = Settings.getInstance();
23 |
24 | System.out.println(String.format("settings 1 : %s", s1.getUuid()));
25 | System.out.println(String.format("settings 2 : %s", s2.getUuid()));
26 |
27 | Assert.assertEquals(s1.getUuid(), s2.getUuid());
28 | }
29 |
30 | @Test
31 | public void test2() {
32 | Settings2 s1 = Settings2.getInstance();
33 | Settings2 s2 = Settings2.getInstance();
34 |
35 | System.out.println(String.format("settings 1 : %s", s1.getUuid()));
36 | System.out.println(String.format("settings 2 : %s", s2.getUuid()));
37 |
38 | Assert.assertEquals(s1.getUuid(), s2.getUuid());
39 | }
40 | }
41 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/access/TouristProxy.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.access;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | /**
6 | * 游客，访客代理
7 | *
8 | * Create Time: 2019-04-07 20:15
9 | * Last Modify: 2019-05-24
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class TouristProxy implements Forum {
15 |
16 | private Logger logger = Logger.getLogger(TouristProxy.class);
17 |
18 | @Override
19 | public void visit() {
20 | logger.info("访客正在访问话题");
21 | }
22 |
23 | @Override
24 | public void comment() {
25 | logger.info("访客正在评论话题");
26 | }
27 |
28 | @Override
29 | public void createTopic() throws UnauthorizedException {
30 | throw new UnauthorizedException("访客无权创建话题");
31 | }
32 |
33 | @Override
34 | public void moidfyTopic() throws UnauthorizedException{
35 | throw new UnauthorizedException("访客无权修改话题");
36 | }
37 |
38 | @Override
39 | public void deleteTopic() throws UnauthorizedException{
40 | throw new UnauthorizedException("访客无权删除话题");
41 | }
42 |
43 | @Override
44 | public boolean auditTopic(String topicId) throws UnauthorizedException{
45 | throw new UnauthorizedException("访客无权审核话题");
46 | }
47 | }
48 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/InterpreterTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import org.junit.Test;
4 | import pers.hai.sample.dp.interpreter.Context;
5 | import pers.hai.sample.dp.interpreter.Node;
6 | import pers.hai.sample.dp.interpreter.ParseException;
7 | import pers.hai.sample.dp.interpreter.ProgramNode;
8 |
9 | import java.io.BufferedReader;
10 | import java.io.FileReader;
11 | import java.io.IOException;
12 |
13 | /**
14 | * TODO
15 | *
16 | * Create Time: 2019-06-14 17:36
17 | * Last Modify: 2019-06-14
18 | *
19 | * @author Q-WHai
20 | * @see https://github.com/qwhai
21 | */
22 | public class InterpreterTests extends Testable {
23 |
24 | @Test
25 | public void test1() {
26 | try {
27 | BufferedReader reader = new BufferedReader(new FileReader("H:\\program.txt"));
28 | String text;
29 | while (null != (text = reader.readLine())) {
30 | logger.info(String.format("text = %s", text));
31 | Node node = new ProgramNode();
32 | node.parse(new Context(text));
33 | logger.info(String.format("node = %s", node));
34 | }
35 | } catch (IOException | ParseException ex) {
36 | logger.error(ex.getMessage());
37 | }
38 | }
39 | }
40 |
--------------------------------------------------------------------------------
/design.pattern.iml:
--------------------------------------------------------------------------------
1 |
2 |
8 | * Create Time: 2019-06-14 17:09
9 | * Last Modify: 2019-06-14
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public abstract class Support {
15 |
16 | private final Logger logger = Logger.getLogger(Support.class);
17 |
18 | private String name;
19 | private Support next;
20 |
21 | Support(String name) {
22 | this.name = name;
23 | }
24 |
25 | public Support setNext(Support support) {
26 | this.next = support;
27 | return this.next;
28 | }
29 |
30 | public final void support(Trouble trouble) {
31 | if (resolve(trouble))
32 | done(trouble);
33 | else if (null != next)
34 | next.support(trouble);
35 | else
36 | fail(trouble);
37 | }
38 |
39 | @Override
40 | public String toString() {
41 | return String.format("[%s]", name);
42 | }
43 |
44 | protected abstract boolean resolve(Trouble trouble);
45 |
46 | private void done(Trouble trouble) {
47 | logger.info(String.format("%s is resolved by %s.", trouble, this));
48 | }
49 |
50 | private void fail(Trouble trouble) {
51 | logger.info(String.format("%s cannot be resolved.", trouble));
52 | }
53 | }
54 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/virtual1/NanjingStation.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.virtual1;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | import java.util.HashMap;
6 | import java.util.Map;
7 |
8 | /**
9 | * 南京站
10 | *
11 | * Create Time: 2019-04-05 22:23
12 | * Last Modify: 2019-05-24
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class NanjingStation implements IStation {
18 |
19 | private Logger logger = Logger.getLogger(NanjingStation.class);
20 |
21 | private Map
6 | * Create Time: 2019-05-29 18:18
7 | * Last Modify: 2019-05-29
8 | *
9 | * @author Q-WHai
10 | * @see https://github.com/qwhai
11 | */
12 | public class Hand {
13 |
14 | public static final int HANDVALUE_GUU = 0; // 表示石头的值
15 | public static final int HANDVALUE_CHO = 1; // 表示剪刀的值
16 | public static final int HANDVALUE_PAA = 2; // 表示布的值
17 |
18 | public static final Hand[] hands = {
19 | new Hand(Hand.HANDVALUE_GUU),
20 | new Hand(Hand.HANDVALUE_CHO),
21 | new Hand(Hand.HANDVALUE_PAA)
22 | };
23 |
24 | private static final String[] names = {
25 | " 石头 ", " 剪刀 ", "布"
26 | };
27 |
28 | private int handval;
29 | public Hand(int handval) {
30 | this.handval = handval;
31 | }
32 |
33 | public static Hand getHand(int handval) {
34 | return hands[handval];
35 | }
36 |
37 | public boolean isStrongerThan(Hand h) {
38 | return 1 == fight(h);
39 | }
40 |
41 | public boolean isWeakerThan(Hand h) {
42 | return -1 == fight(h);
43 | }
44 |
45 | private int fight(Hand h) {
46 | return this == h ? 0 : ((this.handval + 1) % 3 == h.handval) ? 1 : -1;
47 | }
48 |
49 | @Override
50 | public String toString() {
51 | return names[handval];
52 | }
53 | }
54 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/proxy/virtual1/NanjingnanStation.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.proxy.virtual1;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | import java.util.HashMap;
6 | import java.util.Map;
7 |
8 | /**
9 | * 南京南站
10 | *
11 | * Create Time: 2019-04-05 22:27
12 | * Last Modify: 2019-05-24
13 | *
14 | * @author Q-WHai
15 | * @see https://github.com/qwhai
16 | */
17 | public class NanjingnanStation implements IStation {
18 |
19 | private Logger logger = Logger.getLogger(NanjingnanStation.class);
20 |
21 | private Map
10 | * Create Time: 2019-06-13 17:09
11 | * Last Modify: 2019-06-13
12 | *
13 | * @author Q-WHai
14 | * @see https://github.com/qwhai
15 | */
16 | public class MementoTests extends Testable {
17 |
18 | @Test
19 | public void test1() {
20 | Gamer gamer = new Gamer(100);
21 | Memento memento = gamer.createMemento();
22 | for (int i = 0; i < 100; i++) {
23 | logger.info(String.format("--------> ROUND %d", i + 1));
24 | logger.info(String.format("当前状态：%s", gamer));
25 |
26 | gamer.bet();
27 |
28 | logger.info(String.format("所持金币数：%d", gamer.getMoney()));
29 | if (gamer.getMoney() > memento.getMoney()) {
30 | logger.info("所持金币增加过多，保存游戏当前状态");
31 | memento = gamer.createMemento();
32 | } else if (gamer.getMoney() < memento.getMoney() / 2) {
33 | logger.info("所持金币减少过多，恢复到之前保存的状态");
34 | gamer.restoreMemento(memento);
35 | }
36 |
37 | try {
38 | Thread.sleep(1000);
39 | } catch (InterruptedException ex) {
40 | logger.error(ex.getMessage());
41 | }
42 |
43 | System.out.println();
44 | }
45 | }
46 | }
47 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/composite/Directory.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.composite;
2 |
3 | import java.util.ArrayList;
4 | import java.util.Iterator;
5 | import java.util.List;
6 |
7 | /**
8 | * TODO
9 | *
10 | * Create Time: 2019-05-30 09:44
11 | * Last Modify: 2019-05-30
12 | *
13 | * @author Q-WHai
14 | * @see https://github.com/qwhai
15 | */
16 | public class Directory extends Entry {
17 |
18 | private String name;
19 | private List
10 | * Create Time: 2019-06-14 17:48
11 | * Last Modify: 2019-06-14
12 | *
13 | * @author Q-WHai
14 | * @see https://github.com/qwhai
15 | */
16 | public class Context {
17 |
18 | private final Logger logger = Logger.getLogger(Context.class);
19 |
20 | private StringTokenizer tokenizer;
21 | private String currentToken;
22 |
23 | public Context(String text) {
24 | tokenizer = new StringTokenizer(text);
25 | nextToken();
26 | }
27 |
28 | public String nextToken() {
29 | if (tokenizer.hasMoreTokens())
30 | currentToken = tokenizer.nextToken();
31 | else
32 | currentToken = null;
33 |
34 | return currentToken;
35 | }
36 |
37 | public String currentToken() {
38 | return currentToken;
39 | }
40 |
41 | public void skipToken(String token) throws ParseException {
42 | if (!token.equals(currentToken))
43 | throw new ParseException(String.format("Warning: %s is expected, but %s is found.", token, currentToken));
44 |
45 | nextToken();
46 | }
47 |
48 | public int currentNumber() throws ParseException {
49 | int number = 0;
50 | try {
51 | number = Integer.parseInt(currentToken);
52 | } catch (NumberFormatException ex) {
53 | logger.error(ex.getMessage());
54 | }
55 |
56 | return number;
57 | }
58 | }
59 |
--------------------------------------------------------------------------------
/src/test/java/pers/hai/sample/dp/StrategyTests.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp;
2 |
3 | import org.junit.Test;
4 | import pers.hai.sample.dp.strategy.*;
5 |
6 | /**
7 | * TODO
8 | *
9 | * Create Time: 2019-05-29 18:17
10 | * Last Modify: 2019-05-29
11 | *
12 | * @author Q-WHai
13 | * @see https://github.com/qwhai
14 | */
15 | public class StrategyTests {
16 |
17 | @Test
18 | public void test1() {
19 | String[] args = new String[] {
20 | "123",
21 | "32"
22 | };
23 |
24 | int seed1 = Integer.parseInt(args[0]);
25 | int seed2 = Integer.parseInt(args[1]);
26 |
27 | Player player1 = new Player("Taro", new WinningStrategy(seed1));
28 | Player player2 = new Player("Hana", new ProbStrategy(seed2));
29 |
30 | for (int i = 0; i < 1000; i++) {
31 | Hand nextHand1 = player1.nextHand();
32 | Hand nextHand2 = player2.nextHand();
33 |
34 | if (nextHand1.isStrongerThan(nextHand2)) {
35 | System.out.println(String.format("Winner: %s", player1));
36 | player1.win();
37 | player2.lose();
38 | } else if (nextHand2.isStrongerThan(nextHand1)) {
39 | System.out.println(String.format("Winner: %s", player2));
40 | player1.lose();
41 | player2.win();
42 | } else {
43 | System.out.println("Even...");
44 | player1.even();
45 | player2.even();
46 | }
47 | }
48 |
49 | System.out.println("Total result:");
50 | System.out.println(player1);
51 | System.out.println(player2);
52 | }
53 | }
54 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/strategy/ProbStrategy.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.strategy;
2 |
3 | import java.util.Random;
4 |
5 | /**
6 | * TODO
7 | *
8 | * Create Time: 2019-05-29 18:27
9 | * Last Modify: 2019-05-29
10 | *
11 | * @author Q-WHai
12 | * @see https://github.com/qwhai
13 | */
14 | public class ProbStrategy implements Strategy {
15 | private Random random;
16 | private int prevHandValue = 0;
17 | private int currentHandValue = 0;
18 |
19 | private int[][] history = {
20 | { 1, 1, 1 },
21 | { 1, 1, 1 },
22 | { 1, 1, 1 }
23 | };
24 |
25 | public ProbStrategy(int seed) {
26 | random = new Random(seed);
27 | }
28 |
29 | public Hand nextHand() {
30 | int bet = random.nextInt(getSum(currentHandValue));
31 | int handval = 0;
32 | if (bet < history[currentHandValue][0])
33 | handval = 0;
34 | else if (bet < history[currentHandValue][0] + history[currentHandValue][1])
35 | handval = 1;
36 | else
37 | handval = 2;
38 |
39 | prevHandValue = currentHandValue;
40 | currentHandValue = handval;
41 | return Hand.getHand(handval);
42 | }
43 |
44 | private int getSum(int hv) {
45 | int sum = 0;
46 | for (int i = 0; i < 3; i++) {
47 | sum += history[hv][i];
48 | }
49 |
50 | return sum;
51 | }
52 |
53 | public void study(boolean win) {
54 | if (win)
55 | history[prevHandValue][currentHandValue]++;
56 | else {
57 | history[prevHandValue][(currentHandValue + 1) % 3]++;
58 | history[prevHandValue][(currentHandValue + 2) % 3]++;
59 | }
60 | }
61 | }
62 |
--------------------------------------------------------------------------------
/src/main/java/pers/hai/sample/dp/builder/HTMLBuilder.java:
--------------------------------------------------------------------------------
1 | package pers.hai.sample.dp.builder;
2 |
3 | import org.apache.log4j.Logger;
4 |
5 | import java.io.FileWriter;
6 | import java.io.IOException;
7 | import java.io.PrintWriter;
8 |
9 | /**
10 | * TODO
11 | *
12 | * Create Time: 2019/5/25 23:20
13 | * Last Modify: 2019/5/25
14 | *
15 | * @author Q-WHai
16 | * @see https://github.com/qwhai
17 | */
18 | public class HTMLBuilder extends Builder {
19 |
20 | private final Logger logger = Logger.getLogger(HTMLBuilder.class);
21 | private String fileName;
22 | private PrintWriter writer;
23 |
24 | @Override
25 | public void makeTitle(String title) {
26 | fileName = String.format("%s.html", title);
27 |
28 | try {
29 | writer = new PrintWriter(new FileWriter(fileName));
30 | } catch (IOException ex) {
31 | logger.error(ex.getMessage());
32 | }
33 |
34 | writer.println(String.format(" %s%s
", title));
36 | }
37 |
38 | @Override
39 | public void makeString(String content) {
40 | writer.println(String.format("");
46 | for (String item : items) {
47 | writer.println(String.format("
");
50 | }
51 |
52 | @Override
53 | public void close() {
54 | writer.println("