├── .gitignore ├── LICENSE ├── README.md ├── image └── qrcode_wechat.jpg ├── patterns ├── behavior │ ├── chain_of_responsibility │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ ├── ApproveHandler.java │ │ │ ├── ClientProgram.java │ │ │ ├── HR.java │ │ │ ├── Leave.java │ │ │ ├── ProjectLeader.java │ │ │ └── TeamLeader.java │ ├── command │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── command │ │ │ ├── CloseFileCommand.java │ │ │ ├── Command.java │ │ │ ├── FileInvoker.java │ │ │ ├── FileSystemClient.java │ │ │ ├── FileSystemReceiver.java │ │ │ ├── FileSystemReceiverUtil.java │ │ │ ├── OpenFileCommand.java │ │ │ ├── UnixFileSystemReceiver.java │ │ │ ├── WindowsFileSystemReceiver.java │ │ │ ├── WriteFileCommand.java │ │ │ └── uml.ucls │ ├── interpreter │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── interpreter │ │ │ ├── App.java │ │ │ ├── Expression.java │ │ │ ├── MinusExpression.java │ │ │ ├── MultiplyExpression.java │ │ │ ├── NumberExpression.java │ │ │ ├── PlusExpression.java │ │ │ └── uml.ucls │ ├── iterator │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── iterator │ │ │ ├── App.java │ │ │ ├── Channel.java │ │ │ ├── ChannelCollection.java │ │ │ ├── ChannelCollectionImpl.java │ │ │ ├── ChannelIterator.java │ │ │ ├── ChannelTypeEnum.java │ │ │ └── uml.ucls │ ├── observer │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── patterns │ │ │ └── observer │ │ │ ├── Follower.java │ │ │ ├── Observer.java │ │ │ ├── ObserverPatternMain.java │ │ │ ├── OfficialAccount.java │ │ │ ├── Subject.java │ │ │ └── uml.ucls │ ├── strategy │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── strategy │ │ │ ├── HeapSortStrategy.java │ │ │ ├── MergeSortStrategy.java │ │ │ ├── QuickSortStrategy.java │ │ │ ├── SortingMainV1.java │ │ │ ├── SortingMainV2.java │ │ │ ├── SortingManagerV1.java │ │ │ ├── SortingManagerV2.java │ │ │ ├── SortingStrategy.java │ │ │ ├── SortingType.java │ │ │ └── uml.ucls │ └── template │ │ ├── pom.xml │ │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── patterns │ │ └── template │ │ ├── CSVDataParser.java │ │ ├── DataParser.java │ │ ├── DatabaseDataParser.java │ │ └── TemplateMethodMain.java ├── creation │ ├── abstract-factory │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── abstractfactory │ │ │ ├── AbstractFactoryMain.java │ │ │ ├── ChineseElectricalFactory.java │ │ │ ├── ChineseFan.java │ │ │ ├── ChineseTubeLight.java │ │ │ ├── IElectricalFactory.java │ │ │ ├── IFan.java │ │ │ ├── ITubeLight.java │ │ │ ├── USElectricalFactory.java │ │ │ ├── USFan.java │ │ │ └── USTubeLight.java │ ├── builder │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ ├── classicbuilder │ │ │ ├── AndroidPhoneBuilder.java │ │ │ ├── Battery.java │ │ │ ├── ClassicBuilderMain.java │ │ │ ├── IMobilePhoneBuilder.java │ │ │ ├── Manufacturer.java │ │ │ ├── MobilePhone.java │ │ │ ├── OperatingSystem.java │ │ │ ├── ScreenType.java │ │ │ ├── Stylus.java │ │ │ └── WindowsPhoneBuilder.java │ │ │ ├── javabean │ │ │ ├── JavaBeanMain.java │ │ │ └── User.java │ │ │ ├── modernbuilder │ │ │ ├── ModernBuilderMain.java │ │ │ └── User.java │ │ │ └── telescoping_constructor │ │ │ └── User.java │ ├── factory-method │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ └── factorymethod │ │ │ ├── CeilingFan.java │ │ │ ├── CeilingFanFactory.java │ │ │ ├── ExhaustFan.java │ │ │ ├── ExhaustFanFactory.java │ │ │ ├── FactoryMethodMain.java │ │ │ ├── IFan.java │ │ │ ├── IFanFactory.java │ │ │ ├── PropellerFan.java │ │ │ ├── PropellerFanFactory.java │ │ │ ├── TableFan.java │ │ │ └── TableFanFactory.java │ ├── simple-factory │ │ ├── pom.xml │ │ └── src │ │ │ └── main │ │ │ └── java │ │ │ └── io │ │ │ └── spring2go │ │ │ └── corespring │ │ │ ├── nofactory │ │ │ └── NoFactoryMain.java │ │ │ └── simplefactory │ │ │ ├── CeilingFan.java │ │ │ ├── ExhaustFan.java │ │ │ ├── FanFactory.java │ │ │ ├── FanType.java │ │ │ ├── IFan.java │ │ │ ├── IFanFactory.java │ │ │ ├── SimpleFactoryMain.java │ │ │ └── TableFan.java │ └── singleton │ │ ├── filename.ser │ │ ├── pom.xml │ │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ ├── singleton │ │ ├── v3 │ │ │ └── BillPughSingleton.java │ │ └── v4 │ │ │ ├── EnumSingleton.java │ │ │ └── TestEnumSingleton.java │ │ ├── singleton_deserialization │ │ ├── DemoSingleton.java │ │ └── SerializationTest.java │ │ ├── singleton_reflection │ │ ├── ReflectionSingleton.java │ │ └── ReflectionTest.java │ │ ├── singleton_v1 │ │ └── EagerSingleton.java │ │ ├── singleton_v1_1 │ │ └── StaticBlockSingleton.java │ │ ├── singleton_v2 │ │ └── LazySingleton.java │ │ ├── singleton_v2_1 │ │ └── ThreadSafeSingleton.java │ │ └── singleton_v2_2 │ │ └── DoubleCheckLockingSingleton.java ├── general │ └── dependency-inversion │ │ ├── pom.xml │ │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ ├── injection │ │ ├── AppMonitorConstructorInjection.java │ │ └── AppMonitorSetterInjection.java │ │ ├── ioc │ │ ├── AppMonitorIOC.java │ │ ├── EmailSender.java │ │ ├── EventLogWriter.java │ │ ├── INotifier.java │ │ └── SMSSender.java │ │ └── nodip │ │ └── AppMonitorNoDIP.java └── structural │ ├── adapter │ ├── pom.xml │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ ├── display │ │ ├── IHdmi.java │ │ ├── IVga.java │ │ ├── LaptopMain.java │ │ ├── Vga2HdmiAdapter.java │ │ └── VgaDisplay.java │ │ └── stack │ │ ├── ArrayStack.java │ │ ├── ArrayStackMain.java │ │ ├── IStack.java │ │ └── StackException.java │ ├── bridge │ ├── pom.xml │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ └── bridge │ │ ├── Client.java │ │ ├── FileDownloadImplementor.java │ │ ├── FileDownloaderAbstraction.java │ │ ├── FileDownloaderAbstractionImpl.java │ │ ├── LinuxFileDownloadImplementor.java │ │ ├── WindowsFileDownloadImplementor.java │ │ ├── abstraction_change │ │ ├── FileDownloaderAbstraction.java │ │ └── FileDownloaderAbstractionImpl.java │ │ └── implementation_change │ │ ├── FileDownloadImplementor.java │ │ ├── LinuxFileDownloadImplementor.java │ │ └── WindowsFileDownloadImplementor.java │ ├── composite │ ├── pom.xml │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ ├── composite_complex │ │ ├── BaseEmployee.java │ │ ├── CompanyMain.java │ │ ├── Developer.java │ │ ├── IEmployee.java │ │ ├── Manager.java │ │ ├── Subscription.java │ │ ├── SubscriptionType.java │ │ └── Util.java │ │ └── composite_simple │ │ ├── CompositePatternMain.java │ │ ├── Developer.java │ │ ├── IEmployee.java │ │ └── Manager.java │ ├── decorator │ ├── pom.xml │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ └── decorator │ │ ├── ArtificialScentDecorator.java │ │ ├── BakeryComponent.java │ │ ├── CakeBase.java │ │ ├── CherryDecorator.java │ │ ├── CreamDecorator.java │ │ ├── Decorator.java │ │ ├── DecoratorMain.java │ │ ├── NameCardDecorator.java │ │ ├── PastryBase.java │ │ ├── Util.java │ │ └── uml.ucls │ ├── facade │ ├── pom.xml │ └── src │ │ └── main │ │ └── java │ │ └── io │ │ └── spring2go │ │ └── corespring │ │ └── facade │ │ ├── CostManager.java │ │ ├── FacadeMain.java │ │ ├── ICosting.java │ │ ├── IInventory.java │ │ ├── ILogistics.java │ │ ├── IOrderVerify.java │ │ ├── IPaymentGateway.java │ │ ├── InventoryManager.java │ │ ├── LogisticsManager.java │ │ ├── NoFacadeMain.java │ │ ├── OnlineShoppingFacade.java │ │ ├── OrderDetails.java │ │ ├── OrderVerificationManager.java │ │ └── PaymentGatewayManager.java │ └── proxy │ ├── pom.xml │ └── src │ └── main │ └── java │ └── io │ └── spring2go │ └── corespring │ ├── Folder.java │ ├── FolderProxy.java │ ├── IFolder.java │ ├── ProxyDesignPatternMain.java │ ├── User.java │ └── uml.ucls └── ppts ├── DIP+IoC+DI.pdf ├── 代理模式.pdf ├── 单例.pdf ├── 命令模式.pdf ├── 工厂方法.pdf ├── 抽象工厂.pdf ├── 构建者.pdf ├── 桥接器.pdf ├── 模板方法模式.pdf ├── 流畅接口.pdf ├── 策略模式.pdf ├── 简单工厂.pdf ├── 组合模式.pdf ├── 职责链模式.pdf ├── 装饰模式.pdf ├── 观察者模式.pdf ├── 解释器模式.pdf ├── 迭代器模式.pdf ├── 适配器.pdf └── 门面模式.pdf /.gitignore: -------------------------------------------------------------------------------- 1 | target/ 2 | !.mvn/wrapper/maven-wrapper.jar 3 | 4 | ### STS ### 5 | .apt_generated 6 | .classpath 7 | .factorypath 8 | .project 9 | .settings 10 | .springBeans 11 | 12 | ### IntelliJ IDEA ### 13 | .idea 14 | *.iws 15 | *.iml 16 | *.ipr 17 | 18 | *.iml 19 | .gradle 20 | local.properties 21 | .idea/workspace.xml 22 | .idea/libraries 23 | .DS_Store 24 | build/ 25 | captures/ 26 | .externalNativeBuild 27 | 28 | ### NetBeans ### 29 | nbproject/private/ 30 | build/ 31 | nbbuild/ 32 | dist/ 33 | nbdist/ 34 | .nb-gradle/ -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) 2018 spring2go.com 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy 6 | of this software and associated documentation files (the "Software"), to deal 7 | in the Software without restriction, including without limitation the rights 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 | copies of the Software, and to permit persons to whom the Software is 10 | furnished to do so, subject to the following conditions: 11 | 12 | The above copyright notice and this permission notice shall be included in all 13 | copies or substantial portions of the Software. 14 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 21 | SOFTWARE. 22 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | core-spring-patterns 2 | ====== 3 | 4 | Spring核心原理和模式，波波微课 5 | 6 | ## 大纲 7 | 8 | ### 1. 创建模式 9 | 10 | 名称 | 代码 | ppt | 视频 | 11 | ----|-----|-----|-----| 12 | 简单工厂Simple Factory|[code](patterns/creation/simple-factory)|[ppt](ppts/简单工厂.pdf)|[video](https://v.qq.com/x/page/n0629exrd31.html)| 13 | 工厂方法Factory Method|[code](patterns/creation/factory-method)|[ppt](ppts/工厂方法.pdf)|[video](https://v.qq.com/x/page/a0629kh0xxc.html)| 14 | 抽象工厂Abstract Factory|[code](patterns/creation/abstract-factory)|[ppt](ppts/抽象工厂.pdf)|[video](https://v.qq.com/x/page/p0629psr89t.html)| 15 | 单例Singleton|[code](patterns/creation/singleton)|[ppt](ppts/单例.pdf)|[video](https://v.qq.com/x/page/s0630rqg9wg.html)| 16 | 构造者Builder|[code](patterns/creation/builder)|[ppt](ppts/构建者.pdf)|[video](https://v.qq.com/x/page/z0630bg1qs3.html)| 17 | 流畅接口Fluent Interface|[code](patterns/creation/builder)|[ppt](ppts/流畅接口.pdf)|[video](https://v.qq.com/x/page/v063000n872.html)| 18 | 19 | ### 2. 结构模式 20 | 21 | 名称 | 代码 | ppt | 视频 | 22 | ----|-----|-----|-----| 23 | 适配器Adapter|[code](patterns/structural/adapter)|[ppt](ppts/适配器.pdf)|[video](https://v.qq.com/x/page/w0632njvzkw.html)| 24 | 桥接器Bridge|[code](patterns/structural/bridge)|[ppt](ppts/桥接器.pdf)|[video](https://v.qq.com/x/page/h0632obkktb.html)| 25 | 组合Composite|[code](patterns/structural/composite)|[ppt](ppts/组合模式.pdf)|[video](https://v.qq.com/x/page/t0634x9lbew.html)| 26 | 装饰Decorator|[code](patterns/structural/decorator)|[ppt](ppts/装饰模式.pdf)|[video](http://v.qq.com/x/page/p0636w3d6s2.html)| 27 | 门面Facade|[code](patterns/structural/facade)|[ppt](ppts/门面模式.pdf)|[video](https://v.qq.com/x/page/m06379lgexy.html)| 28 | 代理Proxy|[code](patterns/structural/proxy)|[ppt](ppts/代理模式.pdf)|[video](https://v.qq.com/x/page/k0637354wuw.html)| 29 | 30 | 31 | ### 3. 行为模式 32 | 33 | 名称 | 代码 | ppt | 视频 | 34 | ----|-----|-----|-----| 35 | 职责链Chain of Responsibility|[code](patterns/behavior/chain_of_responsibility)|[ppt](ppts/职责链模式.pdf)|[video](http://v.qq.com/x/page/r0640omm9hs.html)| 36 | 命令Command|[code](patterns/behavior/command)|[ppt](ppts/命令模式.pdf)|[video](https://v.qq.com/x/page/j0641ba2m4j.html)| 37 | 解释器Interpreter|[code](patterns/behavior/interpreter)|[ppt](ppts/解释器模式.pdf)|[video](http://v.qq.com/x/page/t0642g9ioam.html)| 38 | 迭代器Iterator|[code](patterns/behavior/iterator)|[ppt](ppts/迭代器模式.pdf)|[video](https://v.qq.com/x/page/a0643uhcvgn.html)| 39 | 策略Strategy|[code](patterns/behavior/strategy)|[ppt](ppts/策略模式.pdf)|[video](http://v.qq.com/x/page/n0645457b19.html)| 40 | 观察者Observer|[code](patterns/behavior/observer)|[ppt](ppts/观察者模式.pdf)|[video](http://v.qq.com/x/page/j0653cekdal.html)| 41 | 模板方法Template Method|[code](patterns/behavior/template)|[ppt](ppts/模板方法模式.pdf)|[video](https://v.qq.com/x/page/p0654hjkpy3.html)| 42 | 43 | ### 4. 核心模式 44 | 45 | 名称 | 代码 | ppt | 视频 | 46 | ----|-----|-----|-----| 47 | 依赖倒置原则，控制反转，依赖注入|[code](patterns/general/dependency-inversion)|[ppt](ppts/DIP+IoC+DI.pdf)|[video](https://v.qq.com/x/page/k0629qsrpz5.html)| 48 | 49 | ## 波波微课公众号 50 | 51 | ![公众号](image/qrcode_wechat.jpg) 52 | 53 | ## 官网 54 | 55 | [jskillcloud.com](http://www.jskillcloud.com) 56 | -------------------------------------------------------------------------------- /image/qrcode_wechat.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring2go/core-spring-patterns/6df03a4bde6b0a425e2fc5aa7397264ec135292a/image/qrcode_wechat.jpg -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | ChainOfResponsibility 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/ApproveHandler.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // Handler 4 | public interface ApproveHandler { 5 | 6 | public void setNextHandler(ApproveHandler nextHandler); 7 | 8 | public void approve(Leave leave); 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/ClientProgram.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // Client 4 | public class ClientProgram { 5 | 6 | public static void main(String[] args) { 7 | TeamLeader tl = new TeamLeader(); 8 | ProjectLeader pl = new ProjectLeader(); 9 | HR hr = new HR(); 10 | 11 | tl.setNextHandler(pl); 12 | pl.setNextHandler(hr); 13 | 14 | 15 | tl.approve(new Leave(1, 5)); 16 | tl.approve(new Leave(2, 15)); 17 | tl.approve(new Leave(3, 25)); 18 | tl.approve(new Leave(4, 35)); 19 | 20 | } 21 | 22 | } 23 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/HR.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | //ConcreteHandler 4 | public class HR implements ApproveHandler { 5 | 6 | private ApproveHandler nextHandler; 7 | 8 | public final static int MAX_LEAVES_CAN_APPROVE = 30; 9 | 10 | public void setNextHandler(ApproveHandler nextHandler) { 11 | this.nextHandler = nextHandler; 12 | } 13 | 14 | public void approve(Leave leave) { 15 | if (leave.getNumberOfDays() < MAX_LEAVES_CAN_APPROVE) { 16 | String output = String.format( 17 | "LeaveId: %d, Days: %d, Approver: %s", 18 | leave.getLeaveId(), 19 | leave.getNumberOfDays(), 20 | "HR"); 21 | System.out.println(output); 22 | } else { 23 | if (nextHandler != null) { 24 | nextHandler.approve(leave); 25 | } else { 26 | System.out.println("Leave application suspended, Please contact HR"); 27 | } 28 | } 29 | } 30 | 31 | } 32 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/Leave.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // 请求对象 4 | public class Leave { 5 | private int leaveId; 6 | private int numberOfDays; 7 | 8 | public Leave(int leaveId, int numberOfDays) { 9 | this.leaveId = leaveId; 10 | this.numberOfDays = numberOfDays; 11 | } 12 | 13 | // region getter/setter 14 | public int getLeaveId() { 15 | return leaveId; 16 | } 17 | 18 | public void setLeaveId(int leaveId) { 19 | this.leaveId = leaveId; 20 | } 21 | 22 | public int getNumberOfDays() { 23 | return numberOfDays; 24 | } 25 | 26 | public void setNumberOfDays(int numberOfDays) { 27 | this.numberOfDays = numberOfDays; 28 | } 29 | // endregion 30 | } 31 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/ProjectLeader.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | //ConcreteHandler 4 | public class ProjectLeader implements ApproveHandler { 5 | 6 | private ApproveHandler nextHandler; 7 | 8 | public final static int MAX_LEAVES_CAN_APPROVE = 20; 9 | 10 | public void setNextHandler(ApproveHandler nextHandler) { 11 | this.nextHandler = nextHandler; 12 | } 13 | 14 | public void approve(Leave leave) { 15 | if (leave.getNumberOfDays() < MAX_LEAVES_CAN_APPROVE) { 16 | String output = String.format( 17 | "LeaveId: %d, Days: %d, Approver: %s", 18 | leave.getLeaveId(), 19 | leave.getNumberOfDays(), 20 | "ProjectLeader"); 21 | System.out.println(output); 22 | } else { 23 | if (nextHandler != null) { 24 | nextHandler.approve(leave); 25 | } 26 | } 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /patterns/behavior/chain_of_responsibility/src/main/java/io/spring2go/corespring/TeamLeader.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // ConcreteHandler 4 | public class TeamLeader implements ApproveHandler { 5 | 6 | private ApproveHandler nextHandler; 7 | 8 | public final static int MAX_LEAVES_CAN_APPROVE = 10; 9 | 10 | public void setNextHandler(ApproveHandler nextHandler) { 11 | this.nextHandler = nextHandler; 12 | } 13 | 14 | public void approve(Leave leave) { 15 | if (leave.getNumberOfDays() < MAX_LEAVES_CAN_APPROVE) { 16 | String output = String.format( 17 | "LeaveId: %d, Days: %d, Approver: %s", 18 | leave.getLeaveId(), 19 | leave.getNumberOfDays(), 20 | "TeamLeader"); 21 | System.out.println(output); 22 | } else { 23 | if (nextHandler != null) { 24 | nextHandler.approve(leave); 25 | } 26 | } 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /patterns/behavior/command/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Command 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/CloseFileCommand.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Concrete Command 4 | public class CloseFileCommand implements Command { 5 | 6 | private FileSystemReceiver fileSystem; 7 | 8 | public CloseFileCommand(FileSystemReceiver fs) { 9 | this.fileSystem = fs; 10 | } 11 | 12 | @Override 13 | public void execute() { 14 | this.fileSystem.closeFile(); 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/Command.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Command interface 4 | public interface Command { 5 | 6 | void execute(); 7 | 8 | } 9 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/FileInvoker.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Invoker 4 | public class FileInvoker { 5 | 6 | private Command command; 7 | 8 | public FileInvoker(Command c) { 9 | this.command = c; 10 | } 11 | 12 | public void execute() { 13 | this.command.execute(); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/FileSystemClient.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Client 4 | public class FileSystemClient { 5 | 6 | public static void main(String[] args) { 7 | // creating the receiver object 8 | FileSystemReceiver fs = FileSystemReceiverUtil.getUnderlyingFileSystem(); 9 | 10 | // creating command and associating with receiver 11 | OpenFileCommand openFileCommand = new OpenFileCommand(fs); 12 | 13 | // creating invoker and associating with Command 14 | FileInvoker file = new FileInvoker(openFileCommand); 15 | 16 | // perform action on invoker object 17 | file.execute(); 18 | 19 | WriteFileCommand writeFileCommand = new WriteFileCommand(fs); 20 | file = new FileInvoker(writeFileCommand); 21 | file.execute(); 22 | 23 | CloseFileCommand closeFileCommand = new CloseFileCommand(fs); 24 | file = new FileInvoker(closeFileCommand); 25 | file.execute(); 26 | 27 | } 28 | 29 | } 30 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/FileSystemReceiver.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Receiver Interface 4 | public interface FileSystemReceiver { 5 | void openFile(); 6 | void writeFile(); 7 | void closeFile(); 8 | } 9 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/FileSystemReceiverUtil.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | public class FileSystemReceiverUtil { 4 | 5 | public static FileSystemReceiver getUnderlyingFileSystem() { 6 | String osName = System.getProperty("os.name"); 7 | System.out.println("Underlying OS is : " + osName); 8 | if (osName.contains("Windows")) { 9 | return new WindowsFileSystemReceiver(); 10 | } else { 11 | return new UnixFileSystemReceiver(); 12 | } 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/OpenFileCommand.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Concrete Command 4 | public class OpenFileCommand implements Command { 5 | 6 | private FileSystemReceiver fileSystem; 7 | 8 | public OpenFileCommand(FileSystemReceiver fs) { 9 | this.fileSystem = fs; 10 | } 11 | 12 | @Override 13 | public void execute() { 14 | // open command is forwarding request to openFile method 15 | this.fileSystem.openFile(); 16 | } 17 | 18 | } 19 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/UnixFileSystemReceiver.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Receiver 4 | public class UnixFileSystemReceiver implements FileSystemReceiver { 5 | 6 | @Override 7 | public void openFile() { 8 | System.out.println("Opening file in unix OS"); 9 | } 10 | 11 | @Override 12 | public void writeFile() { 13 | System.out.println("Writing file in unix OS"); 14 | } 15 | 16 | @Override 17 | public void closeFile() { 18 | System.out.println("Closing file in unix OS"); 19 | } 20 | 21 | } 22 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/WindowsFileSystemReceiver.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Receiver 4 | public class WindowsFileSystemReceiver implements FileSystemReceiver { 5 | 6 | @Override 7 | public void openFile() { 8 | System.out.println("Opening file in Windows OS"); 9 | } 10 | 11 | @Override 12 | public void writeFile() { 13 | System.out.println("Writing file in Windows OS"); 14 | } 15 | 16 | @Override 17 | public void closeFile() { 18 | System.out.println("Closing file in Windows OS"); 19 | } 20 | 21 | } 22 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/WriteFileCommand.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.command; 2 | 3 | // Concrete Command 4 | public class WriteFileCommand implements Command { 5 | 6 | private FileSystemReceiver fileSystem; 7 | 8 | public WriteFileCommand(FileSystemReceiver fs) { 9 | this.fileSystem = fs; 10 | } 11 | 12 | @Override 13 | public void execute() { 14 | this.fileSystem.writeFile(); 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /patterns/behavior/command/src/main/java/io/spring2go/corespring/command/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 10 | 11 | 12 | 13 | 14 | 17 | 18 | 20 | 21 | 22 | 23 | 24 | 27 | 28 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 39 | 40 | 41 | 42 | 43 | 46 | 47 | 49 | 50 | 51 | 52 | 53 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | 66 | 67 | 69 | 70 | 71 | 72 | 73 | 76 | 77 | 79 | 80 | 81 | 82 | 83 | 85 | 86 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 119 | 120 | 121 | 122 | 123 | 124 | 125 | 126 | 127 | 128 | 129 | 130 | 131 | 132 | 133 | 134 | 135 | 136 | 137 | 138 | 139 | 140 | 141 | 142 | 143 | 144 | 146 | 147 | 148 | 149 | 150 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Interpreter 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/App.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | import java.util.Stack; 4 | 5 | // Interpreter 6 | public class App { 7 | 8 | /** 9 | * Expression can be evaluated using prefix, infix or postfix notations 10 | * This sample uses postfix, where operator comes after the operands. 11 | */ 12 | public static void main(String[] args) { 13 | String tokenString = "4 3 2 - 1 + *"; // (3 - 2 + 1) * 4 14 | Stack stack = new Stack<>(); 15 | 16 | String[] tokenList = tokenString.split(" "); 17 | for(String s : tokenList) { 18 | if (isOperator(s)) { 19 | Expression rightExpression = stack.pop(); 20 | Expression leftExpression = stack.pop(); 21 | Expression operator = 22 | getOperatorInstance(s, leftExpression, rightExpression); 23 | int result = operator.interpret(); 24 | NumberExpression resultExpression = new NumberExpression(result); 25 | stack.push(resultExpression); 26 | } else { 27 | Expression i = new NumberExpression(s); 28 | stack.push(i); 29 | } 30 | } 31 | 32 | System.out.println("result: " + stack.pop().interpret()); 33 | } 34 | 35 | public static boolean isOperator(String s) { 36 | return s.equals("+") || s.equals("-") || s.equals("*"); 37 | } 38 | 39 | // Get expression for string 40 | public static Expression getOperatorInstance( 41 | String s, Expression left, Expression right) { 42 | switch (s) { 43 | case "+": 44 | return new PlusExpression(left, right); 45 | case "-": 46 | return new MinusExpression(left, right); 47 | case "*": 48 | return new MultiplyExpression(left, right); 49 | default: 50 | return new MultiplyExpression(left, right); 51 | } 52 | } 53 | 54 | } 55 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/Expression.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | // Expression 4 | public abstract class Expression { 5 | 6 | public abstract int interpret(); 7 | 8 | @Override 9 | public abstract String toString(); 10 | 11 | } 12 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/MinusExpression.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | // MinusExpression 4 | public class MinusExpression extends Expression { 5 | 6 | private Expression leftExpression; 7 | private Expression rightExpression; 8 | 9 | public MinusExpression( 10 | Expression leftExpression, 11 | Expression rightExpression) { 12 | this.leftExpression = leftExpression; 13 | this.rightExpression = rightExpression; 14 | } 15 | 16 | @Override 17 | public int interpret() { 18 | return leftExpression.interpret() - rightExpression.interpret(); 19 | } 20 | 21 | @Override 22 | public String toString() { 23 | return "-"; 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/MultiplyExpression.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | // MultiplyExpression 4 | public class MultiplyExpression extends Expression { 5 | 6 | private Expression leftExpression; 7 | private Expression rightExpression; 8 | 9 | public MultiplyExpression( 10 | Expression leftExpression, 11 | Expression rightExpression) { 12 | this.leftExpression = leftExpression; 13 | this.rightExpression = rightExpression; 14 | } 15 | 16 | @Override 17 | public int interpret() { 18 | return leftExpression.interpret() * rightExpression.interpret(); 19 | } 20 | 21 | @Override 22 | public String toString() { 23 | return "*"; 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/NumberExpression.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | // NumberExpression 4 | public class NumberExpression extends Expression { 5 | 6 | private int number; 7 | 8 | public NumberExpression(int number) { 9 | this.number = number; 10 | } 11 | 12 | public NumberExpression(String s) { 13 | this.number = Integer.parseInt(s); 14 | } 15 | 16 | @Override 17 | public int interpret() { 18 | return number; 19 | } 20 | 21 | @Override 22 | public String toString() { 23 | return "number"; 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/PlusExpression.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.interpreter; 2 | 3 | // PlusExpression 4 | public class PlusExpression extends Expression { 5 | 6 | private Expression leftExpression; 7 | private Expression rightExpression; 8 | 9 | public PlusExpression( 10 | Expression leftExpression, 11 | Expression rightExpression) { 12 | this.leftExpression = leftExpression; 13 | this.rightExpression = rightExpression; 14 | } 15 | 16 | @Override 17 | public int interpret() { 18 | return leftExpression.interpret() + rightExpression.interpret(); 19 | } 20 | 21 | @Override 22 | public String toString() { 23 | return "+"; 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/behavior/interpreter/src/main/java/io/spring2go/corespring/interpreter/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 10 | 11 | 12 | 13 | 14 | 17 | 18 | 20 | 21 | 22 | 23 | 24 | 27 | 28 | 30 | 31 | 32 | 33 | 34 | 37 | 38 | 40 | 41 | 42 | 43 | 44 | 47 | 48 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 | 120 | 121 | 122 | 123 | 124 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Iterator 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/App.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | // Client App 4 | public class App { 5 | 6 | public static void main(String[] args) { 7 | ChannelCollection channels = populateChannels(); 8 | ChannelIterator baseIterator = channels.iterator(ChannelTypeEnum.ALL); 9 | while (baseIterator.hasNext()) { 10 | Channel c = baseIterator.next(); 11 | System.out.println(c.toString()); 12 | } 13 | System.out.println("******"); 14 | // Channel Type Iterator 15 | ChannelIterator englishIterator = channels.iterator(ChannelTypeEnum.ENGLISH); 16 | while (englishIterator.hasNext()) { 17 | Channel c = englishIterator.next(); 18 | System.out.println(c.toString()); 19 | } 20 | } 21 | 22 | private static ChannelCollection populateChannels() { 23 | ChannelCollection channels = new ChannelCollectionImpl(); 24 | channels.addChannel(new Channel(98.5, ChannelTypeEnum.ENGLISH)); 25 | channels.addChannel(new Channel(99.5, ChannelTypeEnum.CHINESE)); 26 | channels.addChannel(new Channel(100.5, ChannelTypeEnum.FRENCH)); 27 | channels.addChannel(new Channel(101.5, ChannelTypeEnum.ENGLISH)); 28 | channels.addChannel(new Channel(102.5, ChannelTypeEnum.CHINESE)); 29 | channels.addChannel(new Channel(103.5, ChannelTypeEnum.FRENCH)); 30 | channels.addChannel(new Channel(104.5, ChannelTypeEnum.ENGLISH)); 31 | channels.addChannel(new Channel(105.5, ChannelTypeEnum.CHINESE)); 32 | channels.addChannel(new Channel(106.5, ChannelTypeEnum.FRENCH)); 33 | return channels; 34 | } 35 | } 36 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/Channel.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | public class Channel { 4 | private double frequency; 5 | private ChannelTypeEnum type; 6 | 7 | public Channel(double freq, ChannelTypeEnum type) { 8 | this.frequency = freq; 9 | this.type = type; 10 | } 11 | 12 | public double getFrequency() { 13 | return frequency; 14 | } 15 | 16 | public ChannelTypeEnum getType() { 17 | return type; 18 | } 19 | 20 | @Override 21 | public String toString() { 22 | return "Frequency = " + this.frequency + ", Type = " + this.type; 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/ChannelCollection.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | // Aggregate 4 | public interface ChannelCollection { 5 | 6 | public void addChannel(Channel c); 7 | 8 | public void removeChannel(Channel c); 9 | 10 | public ChannelIterator iterator(ChannelTypeEnum type); 11 | } 12 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/ChannelCollectionImpl.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | // ConcreteAggregate 7 | public class ChannelCollectionImpl implements ChannelCollection { 8 | 9 | private List channelList; 10 | 11 | public ChannelCollectionImpl() { 12 | channelList = new ArrayList<>(); 13 | } 14 | 15 | @Override 16 | public void addChannel(Channel c) { 17 | this.channelList.add(c); 18 | } 19 | 20 | @Override 21 | public void removeChannel(Channel c) { 22 | this.channelList.remove(c); 23 | } 24 | 25 | @Override 26 | public ChannelIterator iterator(ChannelTypeEnum type) { 27 | return new ChannelIteratorImpl(type, this.channelList); 28 | } 29 | 30 | // ConcreteIterator 31 | private class ChannelIteratorImpl implements ChannelIterator { 32 | private ChannelTypeEnum type; 33 | private List channels; 34 | private int position; 35 | 36 | public ChannelIteratorImpl(ChannelTypeEnum type, 37 | List channelList) { 38 | this.type = type; 39 | this.channels = channelList; 40 | } 41 | 42 | @Override 43 | public boolean hasNext() { 44 | while (position < channels.size()) { 45 | Channel c = channels.get(position); 46 | if (c.getType().equals(type) || 47 | type.equals(ChannelTypeEnum.ALL)) { 48 | return true; 49 | } else { 50 | position++; 51 | } 52 | } 53 | return false; 54 | } 55 | 56 | @Override 57 | public Channel next() { 58 | Channel c = channels.get(position); 59 | position++; 60 | return c; 61 | } 62 | } 63 | 64 | } 65 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/ChannelIterator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | // Iterator 4 | public interface ChannelIterator { 5 | 6 | public boolean hasNext(); 7 | 8 | public Channel next(); 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/ChannelTypeEnum.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.iterator; 2 | 3 | public enum ChannelTypeEnum { 4 | ENGLISH, CHINESE, FRENCH, ALL; 5 | } 6 | -------------------------------------------------------------------------------- /patterns/behavior/iterator/src/main/java/io/spring2go/corespring/iterator/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 10 | 11 | 12 | 13 | 14 | 17 | 18 | 20 | 21 | 22 | 23 | 24 | 27 | 28 | 30 | 31 | 32 | 33 | 34 | 36 | 37 | 39 | 40 | 41 | 42 | 43 | 46 | 47 | 49 | 50 | 51 | 52 | 53 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | 65 | 66 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 118 | 119 | 120 | 121 | 122 | -------------------------------------------------------------------------------- /patterns/behavior/observer/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.patterns 5 | Observer 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/Follower.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.observer; 2 | 3 | public class Follower implements Observer { 4 | 5 | private String followerName; 6 | 7 | public Follower(String followerName) { 8 | this.followerName = followerName; 9 | } 10 | 11 | @Override 12 | public void update(String oaName, String article) { 13 | System.out.println(followerName + " has received " 14 | + oaName + "'s article :: " + article ); 15 | } 16 | 17 | @Override 18 | public String toString() { 19 | return followerName; 20 | } 21 | 22 | } 23 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/Observer.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.observer; 2 | 3 | // The Observers are notified when the Subject changes 4 | public interface Observer { 5 | 6 | public void update(String name, String s); 7 | 8 | } 9 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/ObserverPatternMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.observer; 2 | 3 | public class ObserverPatternMain { 4 | 5 | public static void main(String[] args) { 6 | OfficialAccount bobo = new OfficialAccount("bobo"); 7 | OfficialAccount infoq = new OfficialAccount("infoq"); 8 | 9 | Follower mark = new Follower("Mark"); 10 | Follower eric = new Follower("Eric"); 11 | Follower jack = new Follower("Jack"); 12 | Follower frank = new Follower("Frank"); 13 | Follower daniel = new Follower("Daniel"); 14 | Follower alice = new Follower("Alice"); 15 | 16 | bobo.register(mark); 17 | bobo.register(eric); 18 | bobo.register(jack); 19 | 20 | infoq.register(frank); 21 | infoq.register(daniel); 22 | infoq.register(alice); 23 | 24 | bobo.pushArticle("observer design pattern video course"); 25 | infoq.pushArticle("spring 5.0 is out"); 26 | 27 | bobo.unregister(eric); 28 | 29 | bobo.pushArticle("core java course is released"); 30 | } 31 | 32 | } 33 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/OfficialAccount.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.observer; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | public class OfficialAccount implements Subject { 7 | 8 | private String oaName; 9 | private List followers; 10 | 11 | public OfficialAccount(String oaName) { 12 | this.oaName = oaName; 13 | followers = new ArrayList(); 14 | } 15 | 16 | @Override 17 | public void register(Observer o) { 18 | followers.add(o); 19 | System.out.println(o + " has started following " + oaName); 20 | } 21 | 22 | @Override 23 | public void unregister(Observer o) { 24 | followers.remove(o); 25 | System.out.println(o + " has stopped following " + oaName); 26 | } 27 | 28 | @Override 29 | public void notifyAllObservers(String article) { 30 | for(Observer follower : followers) { 31 | follower.update(oaName, article); 32 | } 33 | System.out.println(); 34 | } 35 | 36 | public void pushArticle(String article) { 37 | System.out.println("\n" + oaName + " has pushed :: " + article); 38 | notifyAllObservers(article); 39 | } 40 | 41 | } 42 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/Subject.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.observer; 2 | 3 | // interface for adding, deleting 4 | // and updating all observers 5 | public interface Subject { 6 | public void register(Observer o); 7 | public void unregister(Observer o); 8 | public void notifyAllObservers(String s); 9 | } 10 | -------------------------------------------------------------------------------- /patterns/behavior/observer/src/main/java/io/spring2go/patterns/observer/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | 7 | 9 | 10 | 11 | 12 | 13 | 15 | 16 | 18 | 19 | 20 | 21 | 22 | 25 | 26 | 28 | 29 | 30 | 31 | 32 | 34 | 35 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Strategy 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/HeapSortStrategy.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | public class HeapSortStrategy implements SortingStrategy { 6 | 7 | @Override 8 | public void sort(List list) { 9 | System.out.println("Sorting using heap sort"); 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/MergeSortStrategy.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | // ConcreteStrategy 6 | public class MergeSortStrategy implements SortingStrategy { 7 | 8 | @Override 9 | public void sort(List list) { 10 | System.out.println("Sorting List using merge sort"); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/QuickSortStrategy.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | // ConcreteStrategy 6 | public class QuickSortStrategy implements SortingStrategy { 7 | 8 | @Override 9 | public void sort(List list) { 10 | System.out.println("Sorting List using quick sort"); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingMainV1.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.Arrays; 4 | import java.util.List; 5 | 6 | public class SortingMainV1 { 7 | public static void main(String[] args) { 8 | List list = Arrays.asList(new Integer[] { 44, 5, 3, 5, 5, 64, 3 }); 9 | 10 | SortingManagerV1 sm = new SortingManagerV1(list); 11 | 12 | // Sorting using merge sort 13 | sm.sortListBasedOnType(SortingType.MERGE_SORT); 14 | 15 | System.out.println(); 16 | 17 | // Sorting using quick sort 18 | sm.sortListBasedOnType(SortingType.QUICK_SORT); 19 | 20 | System.out.println(); 21 | 22 | // Sorting using heap sort 23 | sm.sortListBasedOnType(SortingType.HEAP_SORT); 24 | 25 | } 26 | 27 | } 28 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingMainV2.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.Arrays; 4 | import java.util.List; 5 | 6 | public class SortingMainV2 { 7 | 8 | public static void main(String[] args) { 9 | List list = Arrays.asList(new Integer[] { 44, 5, 3, 5, 5, 64, 3 }); 10 | MergeSortStrategy mergeSortStrategy = new MergeSortStrategy(); 11 | SortingManagerV2 sm = new SortingManagerV2(list, mergeSortStrategy); 12 | sm.sortList(); 13 | 14 | System.out.println(); 15 | 16 | QuickSortStrategy quickSort = new QuickSortStrategy(); 17 | sm.setSortingStrategy(quickSort); 18 | sm.sortList(); 19 | 20 | System.out.println(); 21 | 22 | HeapSortStrategy heapSort = new HeapSortStrategy(); 23 | sm.setSortingStrategy(heapSort); 24 | sm.sortList(); 25 | } 26 | 27 | } 28 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingManagerV1.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | public class SortingManagerV1 { 6 | List list; 7 | 8 | public SortingManagerV1(List list) { 9 | this.list = list; 10 | } 11 | 12 | public void sortListBasedOnType(SortingType sortingType) { 13 | System.out.println("==================================="); 14 | System.out.println("Sorting List based on Type"); 15 | System.out.println("==================================="); 16 | 17 | if (SortingType.MERGE_SORT == sortingType) { 18 | sortListUsingMergeSort(); 19 | } else if (SortingType.QUICK_SORT == sortingType) { 20 | sortListUsingQuickSort(); 21 | } else if (SortingType.HEAP_SORT == sortingType) { 22 | sortListUsingHeapSort(); 23 | } 24 | } 25 | 26 | private void sortListUsingMergeSort() { 27 | System.out.println("Sorting List using merge sort"); 28 | } 29 | 30 | private void sortListUsingQuickSort() { 31 | System.out.println("Sorting List using quick sort"); 32 | } 33 | 34 | private void sortListUsingHeapSort() { 35 | System.out.println("Sorting List using heap sort"); 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingManagerV2.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | public class SortingManagerV2 { 6 | SortingStrategy sortingStrategy; 7 | List list; 8 | 9 | public SortingManagerV2(List list, SortingStrategy sortingStrategy) { 10 | super(); 11 | this.list = list; 12 | this.sortingStrategy = sortingStrategy; 13 | } 14 | 15 | public void sortList() { 16 | System.out.println("==================================="); 17 | System.out.println("Sorting List based on Type"); 18 | System.out.println("==================================="); 19 | 20 | sortingStrategy.sort(list); 21 | } 22 | 23 | public SortingStrategy getSortingStrategy() { 24 | return sortingStrategy; 25 | } 26 | 27 | public void setSortingStrategy(SortingStrategy sortingStrategy) { 28 | this.sortingStrategy = sortingStrategy; 29 | } 30 | 31 | public List getList() { 32 | return list; 33 | } 34 | 35 | public void setList(List list) { 36 | this.list = list; 37 | } 38 | 39 | } 40 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingStrategy.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | import java.util.List; 4 | 5 | // Strategy 6 | public interface SortingStrategy { 7 | void sort(List list); 8 | } 9 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/SortingType.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.strategy; 2 | 3 | public enum SortingType { 4 | MERGE_SORT, QUICK_SORT, HEAP_SORT; 5 | } 6 | -------------------------------------------------------------------------------- /patterns/behavior/strategy/src/main/java/io/spring2go/corespring/strategy/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 10 | 11 | 12 | 13 | 14 | 17 | 18 | 20 | 21 | 22 | 23 | 24 | 27 | 28 | 30 | 31 | 32 | 33 | 34 | 37 | 38 | 40 | 41 | 42 | 43 | 44 | 47 | 48 | 50 | 51 | 52 | 53 | 54 | 57 | 58 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 86 | 87 | 88 | 89 | 90 | -------------------------------------------------------------------------------- /patterns/behavior/template/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.patterns.template 5 | Template 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/behavior/template/src/main/java/io/spring2go/patterns/template/CSVDataParser.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.template; 2 | 3 | public class CSVDataParser extends DataParser { 4 | 5 | @Override 6 | void readData() { 7 | System.out.println("Reading data from csv file"); 8 | } 9 | 10 | @Override 11 | void processData() { 12 | System.out.println("Looping through loaded csv file"); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/behavior/template/src/main/java/io/spring2go/patterns/template/DataParser.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.template; 2 | 3 | abstract class DataParser { 4 | 5 | // generic data processing flow 6 | public final void process() { 7 | readData(); 8 | processData(); 9 | writeData(); 10 | } 11 | 12 | // implemented by subclass 13 | abstract void readData(); 14 | abstract void processData(); 15 | 16 | // same for all subclass 17 | public void writeData() { 18 | System.out.println("Ouput generated, writing to CSV"); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /patterns/behavior/template/src/main/java/io/spring2go/patterns/template/DatabaseDataParser.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.template; 2 | 3 | public class DatabaseDataParser extends DataParser { 4 | 5 | @Override 6 | void readData() { 7 | System.out.println("Reading data from database"); 8 | } 9 | 10 | @Override 11 | void processData() { 12 | System.out.println("Looping through records in DB"); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/behavior/template/src/main/java/io/spring2go/patterns/template/TemplateMethodMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.patterns.template; 2 | 3 | public class TemplateMethodMain { 4 | 5 | public static void main(String[] args) { 6 | CSVDataParser csvDataParser = new CSVDataParser(); 7 | csvDataParser.process(); 8 | System.out.println("**********************"); 9 | DatabaseDataParser databaseDataParser = new DatabaseDataParser(); 10 | databaseDataParser.process(); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | AbstractFactory 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/AbstractFactoryMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class AbstractFactoryMain { 4 | 5 | public static void main(String[] args) { 6 | 7 | // 国产 8 | IElectricalFactory electricalFactory = new ChineseElectricalFactory(); 9 | 10 | IFan fan = electricalFactory.createFan(); 11 | 12 | fan.swithOn(); 13 | 14 | // 美产 15 | electricalFactory = new USElectricalFactory(); 16 | 17 | ITubeLight tubeLight = electricalFactory.createTubeLight(); 18 | tubeLight.swithOn(); 19 | tubeLight.tuneLight(); 20 | 21 | } 22 | 23 | } 24 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/ChineseElectricalFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class ChineseElectricalFactory implements IElectricalFactory { 4 | 5 | public IFan createFan() { 6 | return new ChineseFan(); 7 | } 8 | 9 | public ITubeLight createTubeLight() { 10 | return new ChineseTubeLight(); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/ChineseFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class ChineseFan implements IFan { 4 | 5 | public void swithOn() { 6 | System.out.println("The ChineseFan is swithed on ..."); 7 | } 8 | 9 | public void switchOff() { 10 | System.out.println("The ChineseFan is swithed off ..."); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/ChineseTubeLight.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class ChineseTubeLight implements ITubeLight { 4 | public void swithOn() { 5 | System.out.println("The ChineseTubeLight is swithed on ..."); 6 | } 7 | 8 | public void switchOff() { 9 | System.out.println("The ChineseTubeLight is swithed off ..."); 10 | } 11 | 12 | public void tuneLight() { 13 | System.out.println("The ChineseTubeLight is tuned ..."); 14 | 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/IElectricalFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | // 电器工厂接口 4 | public interface IElectricalFactory { 5 | 6 | IFan createFan(); 7 | 8 | ITubeLight createTubeLight(); 9 | } 10 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/IFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | // 电扇接口 4 | public interface IFan { 5 | 6 | public void swithOn(); 7 | 8 | public void switchOff(); 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/ITubeLight.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | // 日光灯接口 4 | public interface ITubeLight { 5 | public void swithOn(); 6 | 7 | public void switchOff(); 8 | 9 | public void tuneLight(); 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/USElectricalFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class USElectricalFactory implements IElectricalFactory { 4 | 5 | public IFan createFan() { 6 | return new USFan(); 7 | } 8 | 9 | public ITubeLight createTubeLight() { 10 | return new USTubeLight(); 11 | } 12 | 13 | } -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/USFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class USFan implements IFan { 4 | 5 | public void swithOn() { 6 | System.out.println("The USFan is swithed on ..."); 7 | } 8 | 9 | public void switchOff() { 10 | System.out.println("The USFan is swithed off ..."); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/creation/abstract-factory/src/main/java/io/spring2go/corespring/abstractfactory/USTubeLight.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.abstractfactory; 2 | 3 | public class USTubeLight implements ITubeLight { 4 | public void swithOn() { 5 | System.out.println("The USTubeLight is swithed on ..."); 6 | } 7 | 8 | public void switchOff() { 9 | System.out.println("The USTubeLight is swithed off ..."); 10 | } 11 | 12 | public void tuneLight() { 13 | System.out.println("The USTubeLight is tuned ..."); 14 | } 15 | } -------------------------------------------------------------------------------- /patterns/creation/builder/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Builder 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | 10 | UTF-8 11 | UTF-8 12 | 1.8 13 | 1.8 14 | 15 | 16 | 17 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/AndroidPhoneBuilder.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 安卓手机具体构建者"ConcreteBuilder" 4 | public class AndroidPhoneBuilder implements IMobilePhoneBuilder { 5 | 6 | private MobilePhone phone; 7 | 8 | public AndroidPhoneBuilder() { 9 | this.phone = new MobilePhone("Android Phone"); 10 | } 11 | 12 | @Override 13 | public void buildScreen() { 14 | phone.setPhoneScreen(ScreenType.SCREENTYPE_TOUCH_RESISTIVE); 15 | } 16 | 17 | @Override 18 | public void buildBattery() { 19 | phone.setPhoneBattery(Battery.MAH_1500); 20 | } 21 | 22 | @Override 23 | public void buildOS() { 24 | phone.setPhoneOS(OperatingSystem.ANDROID); 25 | } 26 | 27 | @Override 28 | public void buildStylus() { 29 | phone.setPhoneStylus(Stylus.YES); 30 | } 31 | 32 | // 获得最终构建出来的产品 33 | @Override 34 | public MobilePhone getPhone() { 35 | return this.phone; 36 | } 37 | } 38 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/Battery.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 电池容量 4 | public enum Battery { 5 | MAH_1000, 6 | MAH_1500, 7 | MAH_2000 8 | } 9 | 10 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/ClassicBuilderMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 客户程序 4 | public class ClassicBuilderMain { 5 | 6 | public static void main(String[] args) { 7 | // 先创建导演Director 8 | Manufacturer manufacturer = new Manufacturer(); 9 | // 先准备Builder接口 10 | IMobilePhoneBuilder phoneBuilder = null; 11 | 12 | // 制造一部安卓手机 13 | phoneBuilder = new AndroidPhoneBuilder(); 14 | manufacturer.construct(phoneBuilder); 15 | String output = String.format("A new Phone built:\n\n%s", phoneBuilder.getPhone().toString()); 16 | System.out.println(output); 17 | 18 | // 制造一部Windows手机 19 | phoneBuilder = new WindowsPhoneBuilder(); 20 | manufacturer.construct(phoneBuilder); 21 | output = String.format("A new Phone built:\n\n%s", phoneBuilder.getPhone().toString()); 22 | System.out.println(output); 23 | } 24 | } 25 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/IMobilePhoneBuilder.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 这个是构建者"Builder"接口 4 | public interface IMobilePhoneBuilder { 5 | void buildScreen(); 6 | void buildBattery(); 7 | void buildOS(); 8 | void buildStylus(); 9 | MobilePhone getPhone(); 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/Manufacturer.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 这个是导演"Director" 4 | public class Manufacturer { 5 | public void construct(IMobilePhoneBuilder phoneBuilder) { 6 | phoneBuilder.buildBattery(); 7 | phoneBuilder.buildOS(); 8 | phoneBuilder.buildScreen(); 9 | phoneBuilder.buildStylus(); 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/MobilePhone.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 这是"Product"产品类 4 | public class MobilePhone { 5 | // 部件类型 6 | private String phoneName; 7 | private ScreenType phoneScreen; 8 | private Battery phoneBattery; 9 | private OperatingSystem phoneOS; 10 | private Stylus phoneStylus; 11 | 12 | // region 访问手机组件的getter/setter公开方法 13 | public MobilePhone(String name) { 14 | this.phoneName = name; 15 | } 16 | 17 | public String getPhoneName() { 18 | return phoneName; 19 | } 20 | 21 | public ScreenType getPhoneScreen() { 22 | return phoneScreen; 23 | } 24 | 25 | public void setPhoneScreen(ScreenType phoneScreen) { 26 | this.phoneScreen = phoneScreen; 27 | } 28 | 29 | public Battery getPhoneBattery() { 30 | return phoneBattery; 31 | } 32 | 33 | public void setPhoneBattery(Battery phoneBattery) { 34 | this.phoneBattery = phoneBattery; 35 | } 36 | 37 | public OperatingSystem getPhoneOS() { 38 | return phoneOS; 39 | } 40 | 41 | public void setPhoneOS(OperatingSystem phoneOS) { 42 | this.phoneOS = phoneOS; 43 | } 44 | 45 | public Stylus getPhoneStylus() { 46 | return phoneStylus; 47 | } 48 | 49 | public void setPhoneStylus(Stylus phoneStylus) { 50 | this.phoneStylus = phoneStylus; 51 | } 52 | // endregion 53 | 54 | @Override 55 | public String toString() { 56 | return String.format("Name: %s\nScreen: %s\nBattery: %s\nOS: %s\nStylus: %s\n", this.phoneName, 57 | this.phoneScreen, this.phoneBattery, this.phoneOS, this.phoneStylus); 58 | } 59 | } 60 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/OperatingSystem.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 操作系统 4 | public enum OperatingSystem { 5 | ANDROID, 6 | WINDOWS_MOBILE, 7 | WINDOWS_PHONE, 8 | SYMBIAN 9 | } 10 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/ScreenType.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 屏幕类型 4 | public enum ScreenType { 5 | SCREENTYPE_TOUCH_CAPACITIVE, // 电容式 6 | SCREENTYPE_TOUCH_RESISTIVE, // 电阻式 7 | SCREENTYPE_NON_TOUCH 8 | } 9 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/Stylus.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // 触控笔 4 | public enum Stylus { 5 | YES, 6 | NO 7 | } 8 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/classicbuilder/WindowsPhoneBuilder.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.classicbuilder; 2 | 3 | // Windows手机具体构建者"ConcreteBuilder" 4 | public class WindowsPhoneBuilder implements IMobilePhoneBuilder { 5 | 6 | private MobilePhone phone; 7 | 8 | public WindowsPhoneBuilder() { 9 | this.phone = new MobilePhone("Windows Phone"); 10 | } 11 | 12 | @Override 13 | public void buildScreen() { 14 | phone.setPhoneScreen(ScreenType.SCREENTYPE_TOUCH_CAPACITIVE); 15 | } 16 | 17 | @Override 18 | public void buildBattery() { 19 | phone.setPhoneBattery(Battery.MAH_2000); 20 | } 21 | 22 | @Override 23 | public void buildOS() { 24 | phone.setPhoneOS(OperatingSystem.WINDOWS_PHONE); 25 | } 26 | 27 | @Override 28 | public void buildStylus() { 29 | phone.setPhoneStylus(Stylus.NO); 30 | } 31 | 32 | @Override 33 | public MobilePhone getPhone() { 34 | return this.phone; 35 | } 36 | 37 | } 38 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/javabean/JavaBeanMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.javabean; 2 | 3 | public class JavaBeanMain { 4 | 5 | // JavaBean构造对象 6 | public static void main(String[] args) { 7 | User user = new User(); 8 | user.setFirstName("william"); 9 | user.setLastName("yang"); 10 | user.setAge(35); 11 | user.setPhone("18001756666"); 12 | user.setAddress("shanghai pudong"); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/javabean/User.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.javabean; 2 | 3 | // JavaBeans模式 4 | public class User { 5 | 6 | //region 私有成员 7 | private String firstName; 8 | private String lastName; 9 | private int age; 10 | private String phone; 11 | private String address; 12 | //endregion 13 | 14 | public User() {} 15 | 16 | public String getFirstName() { 17 | return firstName; 18 | } 19 | public void setFirstName(String firstName) { 20 | this.firstName = firstName; 21 | } 22 | public String getLastName() { 23 | return lastName; 24 | } 25 | public void setLastName(String lastName) { 26 | this.lastName = lastName; 27 | } 28 | public int getAge() { 29 | return age; 30 | } 31 | public void setAge(int age) { 32 | this.age = age; 33 | } 34 | public String getPhone() { 35 | return phone; 36 | } 37 | public void setPhone(String phone) { 38 | this.phone = phone; 39 | } 40 | public String getAddress() { 41 | return address; 42 | } 43 | public void setAddress(String address) { 44 | this.address = address; 45 | } 46 | } 47 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/modernbuilder/ModernBuilderMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.modernbuilder; 2 | 3 | public class ModernBuilderMain { 4 | 5 | public static void main(String[] args) { 6 | User user1 = new User.UserBuilder("william", "Yang") 7 | .age(35) 8 | .phone("123456") 9 | .address("Fake address 1234") 10 | .build(); 11 | 12 | System.out.println(user1); 13 | 14 | User user2 = new User.UserBuilder("Jack", "Liu") 15 | .age(40) 16 | .phone("5655") 17 | //no address 18 | .build(); 19 | 20 | System.out.println(user2); 21 | 22 | User user3 = new User.UserBuilder("Frank", "Han") 23 | //no age 24 | //no phone 25 | //no address 26 | .build(); 27 | 28 | System.out.println(user3); 29 | } 30 | 31 | } 32 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/modernbuilder/User.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.modernbuilder; 2 | 3 | // 流畅接口(Fluent Interface) 4 | public class User { 5 | // 所有字段final 6 | private final String firstName; // 必须 7 | private final String lastName; // 必须 8 | private final int age; // 可选 9 | private final String phone; // 可选 10 | private final String address; // 可选 11 | 12 | private User(UserBuilder builder) { 13 | this.firstName = builder.firstName; 14 | this.lastName = builder.lastName; 15 | this.age = builder.age; 16 | this.phone = builder.phone; 17 | this.address = builder.address; 18 | } 19 | 20 | // 全部是getter，没有setter，保证不可变性immutability 21 | public String getFirstName() { 22 | return firstName; 23 | } 24 | 25 | public String getLastName() { 26 | return lastName; 27 | } 28 | 29 | public int getAge() { 30 | return age; 31 | } 32 | 33 | public String getPhone() { 34 | return phone; 35 | } 36 | 37 | public String getAddress() { 38 | return address; 39 | } 40 | 41 | @Override 42 | public String toString() { 43 | return "User: " + this.firstName + ", " 44 | + this.lastName + ", " + this.age + ", " 45 | + this.phone + ", " + this.address; 46 | } 47 | 48 | public static class UserBuilder { 49 | private final String firstName; 50 | private final String lastName; 51 | private int age; 52 | private String phone; 53 | private String address; 54 | 55 | public UserBuilder(String firstName, String lastName) { 56 | this.firstName = firstName; 57 | this.lastName = lastName; 58 | } 59 | 60 | public UserBuilder age(int age) { 61 | this.age = age; 62 | return this; 63 | } 64 | 65 | public UserBuilder phone(String phone) { 66 | this.phone = phone; 67 | return this; 68 | } 69 | 70 | public UserBuilder address(String address) { 71 | this.address = address; 72 | return this; 73 | } 74 | 75 | // 返回最终构造的用户对象 76 | public User build() { 77 | User user = new User(this); 78 | validateUserObject(user); 79 | return user; 80 | } 81 | 82 | private void validateUserObject(User user) { 83 | // 基本的验证检查 84 | // 确保用户对象不违反系统假设 85 | } 86 | } 87 | } 88 | -------------------------------------------------------------------------------- /patterns/creation/builder/src/main/java/io/spring2go/corespring/telescoping_constructor/User.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.telescoping_constructor; 2 | 3 | // 显微镜构造函数模式 4 | public class User { 5 | 6 | // region 私有成员 7 | private String firstName; 8 | private String lastName; 9 | private int age; 10 | private String phone; 11 | private String address; 12 | // endregion 13 | 14 | public User(String firstName, String lastName, int age, String phone) { 15 | this.firstName = firstName; 16 | this.lastName = lastName; 17 | this.age = age; 18 | this.phone = phone; 19 | } 20 | 21 | public User(String firstName, String lastName, String phone, String address) { 22 | this.firstName = firstName; 23 | this.lastName = lastName; 24 | this.phone = phone; 25 | this.address = address; 26 | } 27 | 28 | public User(String firstName, String lastName, int age) { 29 | this.firstName = firstName; 30 | this.lastName = lastName; 31 | this.age = age; 32 | } 33 | 34 | public User(String firstName, String lastName) { 35 | this.firstName = firstName; 36 | this.lastName = lastName; 37 | } 38 | 39 | // region public getter 40 | public String getFirstName() { 41 | return firstName; 42 | } 43 | 44 | public String getLastName() { 45 | return lastName; 46 | } 47 | 48 | public int getAge() { 49 | return age; 50 | } 51 | 52 | public String getPhone() { 53 | return phone; 54 | } 55 | 56 | public String getAddress() { 57 | return address; 58 | } 59 | // endregion 60 | } 61 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | FactoryMethod 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/CeilingFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | // 吊扇 4 | public class CeilingFan implements IFan { 5 | 6 | @Override 7 | public void swithOn() { 8 | System.out.println("The CeilingFan is swithed on ..."); 9 | } 10 | 11 | @Override 12 | public void switchOff() { 13 | System.out.println("The CeilingFan is swithed off ..."); 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/CeilingFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public class CeilingFanFactory implements IFanFactory { 4 | 5 | @Override 6 | public IFan createFan() { 7 | return new CeilingFan(); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/ExhaustFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public class ExhaustFan implements IFan { 4 | 5 | @Override 6 | public void swithOn() { 7 | System.out.println("The ExhaustFan is swithed on ..."); 8 | } 9 | 10 | @Override 11 | public void switchOff() { 12 | System.out.println("The ExhaustFan is swithed off ..."); 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/ExhaustFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public class ExhaustFanFactory implements IFanFactory { 4 | 5 | @Override 6 | public IFan createFan() { 7 | return new ExhaustFan(); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/FactoryMethodMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | //客户端代码 4 | public class FactoryMethodMain { 5 | 6 | public static void main(String[] args) { 7 | IFanFactory fanFactory = new PropellerFanFactory(); 8 | 9 | // 使用工厂方法创建一个电扇 10 | IFan fan = fanFactory.createFan(); 11 | 12 | // 使用创建的对象 13 | fan.swithOn(); 14 | 15 | fan.switchOff(); 16 | } 17 | 18 | 19 | } 20 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/IFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public interface IFan { 4 | 5 | public void swithOn(); 6 | 7 | public void switchOff(); 8 | 9 | } 10 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/IFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public interface IFanFactory { 4 | IFan createFan(); 5 | } 6 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/PropellerFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | // 螺旋桨式通风扇 4 | public class PropellerFan implements IFan { 5 | 6 | @Override 7 | public void swithOn() { 8 | System.out.println("The PropellerFan is swithed on ..."); 9 | } 10 | 11 | @Override 12 | public void switchOff() { 13 | System.out.println("The PropellerFan is swithed off ..."); 14 | } 15 | 16 | } 17 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/PropellerFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public class PropellerFanFactory implements IFanFactory { 4 | 5 | @Override 6 | public IFan createFan() { 7 | return new PropellerFan(); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/TableFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | // 台扇 4 | public class TableFan implements IFan { 5 | 6 | @Override 7 | public void swithOn() { 8 | System.out.println("The TableFan is swithed on ..."); 9 | } 10 | 11 | @Override 12 | public void switchOff() { 13 | System.out.println("The TableFan is swithed off ..."); 14 | } 15 | 16 | } 17 | -------------------------------------------------------------------------------- /patterns/creation/factory-method/src/main/java/io/spring2go/corespring/factorymethod/TableFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.factorymethod; 2 | 3 | public class TableFanFactory implements IFanFactory { 4 | 5 | @Override 6 | public IFan createFan() { 7 | return new TableFan(); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | SimpleFactory 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/nofactory/NoFactoryMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.nofactory; 2 | 3 | public class NoFactoryMain { 4 | 5 | public static void main(String[] args) { 6 | TableFan fan = new TableFan(); 7 | fan.switchOn(); 8 | } 9 | 10 | } 11 | 12 | class TableFan { 13 | public void switchOn() { 14 | System.out.println("The TableFan is switched on ..."); 15 | } 16 | } 17 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/CeilingFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public class CeilingFan implements IFan { 4 | 5 | @Override 6 | public void swithOn() { 7 | System.out.println("The CeilingFan is swithed on ..."); 8 | } 9 | 10 | @Override 11 | public void switchOff() { 12 | System.out.println("The CeilingFan is swithed off ..."); 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/ExhaustFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public class ExhaustFan implements IFan { 4 | 5 | @Override 6 | public void swithOn() { 7 | System.out.println("The ExhaustFan is swithed on ..."); 8 | } 9 | 10 | @Override 11 | public void switchOff() { 12 | System.out.println("The ExhaustFan is swithed off ..."); 13 | } 14 | } 15 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/FanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public class FanFactory implements IFanFactory { 4 | 5 | @Override 6 | public IFan createFan(FanType type) { 7 | switch (type) { 8 | case TableFan: 9 | return new TableFan(); 10 | case CeilingFan: 11 | return new CeilingFan(); 12 | case ExhaustFan: 13 | return new ExhaustFan(); 14 | default: 15 | return new TableFan(); 16 | } 17 | } 18 | 19 | } 20 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/FanType.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public enum FanType { 4 | 5 | TableFan, //台扇 6 | CeilingFan, //吊扇 7 | ExhaustFan // 排风扇 8 | } 9 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/IFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public interface IFan { 4 | 5 | public void swithOn(); 6 | 7 | public void switchOff(); 8 | 9 | } 10 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/IFanFactory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public interface IFanFactory { 4 | IFan createFan(FanType type); 5 | } 6 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/SimpleFactoryMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | // 客户端代码 4 | public class SimpleFactoryMain { 5 | 6 | public static void main(String[] args) { 7 | IFanFactory simpleFactory = new FanFactory(); 8 | // 使用简单工厂创建一个电扇 9 | IFan fan = simpleFactory.createFan(FanType.TableFan); 10 | fan.swithOn(); 11 | fan.switchOff(); 12 | } 13 | 14 | } 15 | -------------------------------------------------------------------------------- /patterns/creation/simple-factory/src/main/java/io/spring2go/corespring/simplefactory/TableFan.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.simplefactory; 2 | 3 | public class TableFan implements IFan { 4 | 5 | @Override 6 | public void swithOn() { 7 | System.out.println("The TableFan is swithed on ..."); 8 | } 9 | 10 | @Override 11 | public void switchOff() { 12 | System.out.println("The TableFan is swithed off ..."); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/creation/singleton/filename.ser: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring2go/core-spring-patterns/6df03a4bde6b0a425e2fc5aa7397264ec135292a/patterns/creation/singleton/filename.ser -------------------------------------------------------------------------------- /patterns/creation/singleton/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Singleton 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton/v3/BillPughSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton.v3; 2 | 3 | // 比尔.普夫单例 4 | public class BillPughSingleton { 5 | // 私有构造函数，避免被客户端代码使用 6 | private BillPughSingleton() {} 7 | 8 | private static class LazyHolder { 9 | private static final BillPughSingleton INSTANCE = new BillPughSingleton(); 10 | } 11 | 12 | public static BillPughSingleton getInstance() { 13 | return LazyHolder.INSTANCE; 14 | } 15 | } -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton/v4/EnumSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton.v4; 2 | 3 | // 枚举单例 4 | public enum EnumSingleton { 5 | INSTANCE; 6 | 7 | // 添加单例方法 8 | public void method() { 9 | System.out.println("Singleton method called..."); 10 | } 11 | } 12 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton/v4/TestEnumSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton.v4; 2 | 3 | public class TestEnumSingleton { 4 | 5 | public static void main(String[] args) { 6 | EnumSingleton.INSTANCE.method(); 7 | } 8 | 9 | } -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_deserialization/DemoSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_deserialization; 2 | 3 | import java.io.Serializable; 4 | 5 | public class DemoSingleton implements Serializable { 6 | private static final long serialVersionUID = -7604766932017737115L; 7 | 8 | private static class LazyHolder{ 9 | private static final DemoSingleton INSTANCE = new DemoSingleton(); 10 | } 11 | 12 | public static DemoSingleton getInstance(){ 13 | return LazyHolder.INSTANCE; 14 | } 15 | 16 | // 确保反序列化单例 17 | protected Object readResolve() { 18 | return getInstance(); 19 | } 20 | } -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_deserialization/SerializationTest.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_deserialization; 2 | 3 | import java.io.FileInputStream; 4 | import java.io.FileNotFoundException; 5 | import java.io.FileOutputStream; 6 | import java.io.IOException; 7 | import java.io.ObjectInput; 8 | import java.io.ObjectInputStream; 9 | import java.io.ObjectOutput; 10 | import java.io.ObjectOutputStream; 11 | 12 | public class SerializationTest { 13 | 14 | public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException { 15 | DemoSingleton instanceOne = DemoSingleton.getInstance(); 16 | ObjectOutput out = new ObjectOutputStream(new FileOutputStream( 17 | "filename.ser")); 18 | out.writeObject(instanceOne); 19 | out.close(); 20 | 21 | // 从文件反序列化到对象 22 | ObjectInput in = new ObjectInputStream(new FileInputStream( 23 | "filename.ser")); 24 | DemoSingleton instanceTwo = (DemoSingleton) in.readObject(); 25 | in.close(); 26 | 27 | System.out.println("instanceOne hashCode="+instanceOne.hashCode()); 28 | System.out.println("instanceTwo hashCode="+instanceTwo.hashCode()); 29 | 30 | } 31 | 32 | } 33 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_reflection/ReflectionSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_reflection; 2 | 3 | public class ReflectionSingleton { 4 | private static ReflectionSingleton INSTANCE; 5 | 6 | private ReflectionSingleton() { 7 | //throw new InstantiationError("不能通过反射创建单例"); 8 | } 9 | 10 | public static synchronized ReflectionSingleton getInstance() { 11 | if (INSTANCE == null) { 12 | INSTANCE = new ReflectionSingleton(); 13 | } 14 | return INSTANCE; 15 | } 16 | } -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_reflection/ReflectionTest.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_reflection; 2 | 3 | import java.lang.reflect.Constructor; 4 | 5 | public class ReflectionTest { 6 | 7 | public static void main(String[] args) { 8 | ReflectionSingleton instanceOne = ReflectionSingleton.getInstance(); 9 | ReflectionSingleton instanceTwo = null; 10 | try { 11 | Constructor constructor = ReflectionSingleton.class.getDeclaredConstructor(); 12 | // 下面的代码会破坏单例 13 | constructor.setAccessible(true); 14 | // 创建第二个实例 15 | instanceTwo = (ReflectionSingleton) constructor.newInstance(); 16 | } catch (Exception e) { 17 | e.printStackTrace(); 18 | } 19 | System.out.println(instanceOne.hashCode()); 20 | System.out.println(instanceTwo.hashCode()); 21 | } 22 | } -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v1/EagerSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_v1; 2 | 3 | // 提前初始化单例 4 | public class EagerSingleton { 5 | private static final EagerSingleton INSTANCE = new EagerSingleton(); 6 | 7 | // 私有构造函数，避免被客户端代码使用 8 | private EagerSingleton() {} 9 | 10 | public static EagerSingleton getInstance() { 11 | return INSTANCE; 12 | } 13 | } 14 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v1_1/StaticBlockSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_v1_1; 2 | 3 | // 静态初始化块单例 4 | public class StaticBlockSingleton { 5 | private static final StaticBlockSingleton INSTANCE; 6 | 7 | // 私有构造函数，避免被客户端使用 8 | private StaticBlockSingleton() {} 9 | 10 | static { 11 | try { 12 | INSTANCE = new StaticBlockSingleton(); 13 | } catch (Exception e) { // 异常处理 14 | throw new RuntimeException("Uffff, i was not expecting this!", e); 15 | } 16 | } 17 | 18 | public static StaticBlockSingleton getInstance() { 19 | return INSTANCE; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v2/LazySingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_v2; 2 | 3 | // 延迟初始化单例 4 | public class LazySingleton { 5 | private static LazySingleton INSTANCE; 6 | 7 | private LazySingleton(){} 8 | 9 | public static LazySingleton getInstance(){ 10 | if(INSTANCE == null){ 11 | INSTANCE = new LazySingleton(); 12 | } 13 | return INSTANCE; 14 | } 15 | } 16 | -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v2_1/ThreadSafeSingleton.java: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring2go/core-spring-patterns/6df03a4bde6b0a425e2fc5aa7397264ec135292a/patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v2_1/ThreadSafeSingleton.java -------------------------------------------------------------------------------- /patterns/creation/singleton/src/main/java/io/spring2go/corespring/singleton_v2_2/DoubleCheckLockingSingleton.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.singleton_v2_2; 2 | 3 | // 双重检查锁定单例 4 | public class DoubleCheckLockingSingleton { 5 | private static volatile DoubleCheckLockingSingleton INSTANCE; 6 | 7 | // 私有构造函数，避免被客户端代码使用 8 | private DoubleCheckLockingSingleton() {} 9 | 10 | public static DoubleCheckLockingSingleton getInstance() { 11 | if (INSTANCE == null) { 12 | synchronized (DoubleCheckLockingSingleton.class) { 13 | // 双重检查 14 | if (INSTANCE == null) { 15 | INSTANCE = new DoubleCheckLockingSingleton(); 16 | } 17 | } 18 | } 19 | return INSTANCE; 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | DependencyInversion 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/injection/AppMonitorConstructorInjection.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.injection; 2 | 3 | import io.spring2go.corespring.ioc.EventLogWriter; 4 | import io.spring2go.corespring.ioc.INotifier; 5 | 6 | public class AppMonitorConstructorInjection { 7 | // 事件通知器 8 | private INotifier notifier = null; 9 | 10 | public AppMonitorConstructorInjection(INotifier notifier) { 11 | this.notifier = notifier; 12 | } 13 | 14 | // 应用有问题时该方法被调用 15 | public void notify(String message) { 16 | notifier.notify(message); 17 | } 18 | 19 | public static void main(String[] args) { 20 | EventLogWriter writer = new EventLogWriter(); 21 | AppMonitorConstructorInjection monitor = 22 | new AppMonitorConstructorInjection(writer); 23 | monitor.notify("App has a problem ..."); 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/injection/AppMonitorSetterInjection.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.injection; 2 | 3 | import io.spring2go.corespring.ioc.EventLogWriter; 4 | import io.spring2go.corespring.ioc.INotifier; 5 | 6 | public class AppMonitorSetterInjection { 7 | // 事件通知器 8 | private INotifier notifier = null; 9 | 10 | public void SetNotifier(INotifier notifier) { 11 | this.notifier = notifier; 12 | } 13 | 14 | // 应用有问题时该方法被调用 15 | public void notify(String message) { 16 | notifier.notify(message); 17 | } 18 | 19 | public static void main(String[] args) { 20 | EventLogWriter writer = new EventLogWriter(); 21 | AppMonitorSetterInjection monitor = 22 | new AppMonitorSetterInjection(); 23 | // 可以在其它类中设置 24 | monitor.SetNotifier(writer); 25 | // 可以在其它类中调用 26 | monitor.notify("App has a problem ..."); 27 | } 28 | } 29 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/ioc/AppMonitorIOC.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.ioc; 2 | 3 | public class AppMonitorIOC { 4 | // 事件通知器 5 | private INotifier notifier = null; 6 | 7 | // 应用有问题时该方法被调用 8 | public void notify(String message) { 9 | if (notifier == null) { 10 | // 将抽象接口映射到具体类 11 | notifier = new EventLogWriter(); 12 | } 13 | notifier.notify(message); 14 | } 15 | 16 | public static void main(String[] args) { 17 | AppMonitorIOC appMonitor = new AppMonitorIOC(); 18 | appMonitor.notify("App has a problem ..."); 19 | } 20 | } 21 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/ioc/EmailSender.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.ioc; 2 | 3 | public class EmailSender implements INotifier { 4 | 5 | public void notify(String message) { 6 | // 发送Email 7 | System.out.println("Send email, message : " + message); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/ioc/EventLogWriter.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.ioc; 2 | 3 | public class EventLogWriter implements INotifier { 4 | 5 | public void notify(String message) { 6 | // 写到事件日志 7 | System.out.println("Write to event log, message : " + message); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/ioc/INotifier.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.ioc; 2 | 3 | // 事件通知器接口 4 | public interface INotifier { 5 | public void notify(String message); 6 | } 7 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/ioc/SMSSender.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.ioc; 2 | 3 | public class SMSSender implements INotifier { 4 | 5 | public void notify(String message) { 6 | // 发送短消息 7 | System.out.println("Send SMS, message : " + message); 8 | } 9 | } 10 | -------------------------------------------------------------------------------- /patterns/general/dependency-inversion/src/main/java/io/spring2go/corespring/nodip/AppMonitorNoDIP.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.nodip; 2 | 3 | public class AppMonitorNoDIP { 4 | 5 | // 负责将事件日志写到日志系统 6 | private EventLogWriter writer = null; 7 | 8 | // 应用有问题时该方法将被调用 9 | public void notify(String message) { 10 | if (writer == null) { 11 | writer = new EventLogWriter(); 12 | } 13 | writer.write(message); 14 | } 15 | 16 | public static void main(String[] args) { 17 | AppMonitorNoDIP appMonitor = new AppMonitorNoDIP(); 18 | appMonitor.notify("App has a problem ..."); 19 | } 20 | } 21 | 22 | class EventLogWriter { 23 | 24 | public void write(String message) { 25 | // 写到事件日志 26 | System.out.println("Write to event log, message : " + message); 27 | } 28 | } 29 | 30 | 31 | -------------------------------------------------------------------------------- /patterns/structural/adapter/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Adapter 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | 16 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/display/IHdmi.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.display; 2 | 3 | // HDMI接口 4 | public interface IHdmi { 5 | 6 | public void openHdmi(); 7 | } 8 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/display/IVga.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.display; 2 | 3 | // VGA接口 4 | public interface IVga { 5 | 6 | public void openVga(); 7 | } 8 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/display/LaptopMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.display; 2 | 3 | public class LaptopMain { 4 | 5 | public static void main(String[] args) { 6 | 7 | VgaDisplay vgaDisplay = new VgaDisplay(); 8 | 9 | Vga2HdmiAdapter adapter = new Vga2HdmiAdapter(vgaDisplay); 10 | 11 | operateHdmiLaptop(adapter); 12 | } 13 | 14 | static void operateHdmiLaptop(IHdmi hdmiDisplay) { 15 | hdmiDisplay.openHdmi(); 16 | } 17 | 18 | } 19 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/display/Vga2HdmiAdapter.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.display; 2 | 3 | // VGA2HDMI适配器 4 | public class Vga2HdmiAdapter implements IHdmi { 5 | 6 | private IVga vgaDisplay; 7 | 8 | public Vga2HdmiAdapter(IVga vgaDisplay) { 9 | this.vgaDisplay = vgaDisplay; 10 | } 11 | 12 | public void openHdmi() { 13 | // 适配逻辑 14 | this.vgaDisplay.openVga(); 15 | System.out.println("Opening HDMI device"); 16 | } 17 | 18 | } 19 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/display/VgaDisplay.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.display; 2 | 3 | // 支持VGA接口的显示器 4 | public class VgaDisplay implements IVga { 5 | 6 | public void openVga() { 7 | System.out.println("Opening..VGA Display..."); 8 | } 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/ArrayStack.java: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring2go/core-spring-patterns/6df03a4bde6b0a425e2fc5aa7397264ec135292a/patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/ArrayStack.java -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/ArrayStackMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.stack; 2 | 3 | public class ArrayStackMain { 4 | 5 | public static void main(String[] args) { 6 | ArrayStack stack = new ArrayStack(6); 7 | 8 | try { 9 | for(int i = 0; i < 6; i++) { 10 | stack.push(i); 11 | } 12 | 13 | System.out.println(stack); 14 | 15 | for(int i = 0; i < 5; i++) { 16 | stack.pop(); 17 | } 18 | 19 | System.out.println(stack); 20 | } catch(StackException e) { 21 | System.err.println(e); 22 | } 23 | 24 | } 25 | 26 | } 27 | -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/IStack.java: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/spring2go/core-spring-patterns/6df03a4bde6b0a425e2fc5aa7397264ec135292a/patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/IStack.java -------------------------------------------------------------------------------- /patterns/structural/adapter/src/main/java/io/spring2go/corespring/stack/StackException.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.stack; 2 | 3 | public class StackException extends RuntimeException { 4 | 5 | private static final long serialVersionUID = 1L; 6 | 7 | public StackException(String name) { 8 | super(name); 9 | } 10 | 11 | public StackException() { 12 | super(); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/structural/bridge/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Bridge 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/Client.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | public class Client { 4 | 5 | public static void main(String[] args) { 6 | String os = "linux"; 7 | FileDownloaderAbstraction downloader = null; 8 | 9 | switch (os) { 10 | case "windows": 11 | downloader = new FileDownloaderAbstractionImpl(new WindowsFileDownloadImplementor()); 12 | break; 13 | case "linux": 14 | downloader = new FileDownloaderAbstractionImpl(new LinuxFileDownloadImplementor()); 15 | break; 16 | 17 | default: 18 | System.out.println("OS not supported !!"); 19 | } 20 | 21 | Object fileContent = downloader.download("some path"); 22 | downloader.store(fileContent); 23 | } 24 | 25 | } 26 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/FileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | // Implementor 4 | public interface FileDownloadImplementor { 5 | 6 | public Object downloadFile(String path); 7 | 8 | public boolean storeFile(Object object); 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/FileDownloaderAbstraction.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | // Abstraction 4 | public interface FileDownloaderAbstraction { 5 | 6 | public Object download(String path); 7 | 8 | public boolean store(Object object); 9 | } 10 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/FileDownloaderAbstractionImpl.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | // RefinedAbstraction 4 | public class FileDownloaderAbstractionImpl implements FileDownloaderAbstraction { 5 | private FileDownloadImplementor provider = null; 6 | 7 | public FileDownloaderAbstractionImpl(FileDownloadImplementor provider) { 8 | super(); 9 | this.provider = provider; 10 | } 11 | 12 | @Override 13 | public Object download(String path) { 14 | return provider.downloadFile(path); 15 | } 16 | 17 | @Override 18 | public boolean store(Object path) { 19 | return provider.storeFile(path); 20 | } 21 | } 22 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/LinuxFileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | // Concrete Implementor 4 | public class LinuxFileDownloadImplementor implements FileDownloadImplementor { 5 | 6 | @Override 7 | public Object downloadFile(String path) { 8 | return new Object(); 9 | } 10 | 11 | @Override 12 | public boolean storeFile(Object object) { 13 | System.out.println("File download successfully in LINUX !!"); 14 | return true; 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/WindowsFileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge; 2 | 3 | //Concrete Implementor 4 | public class WindowsFileDownloadImplementor implements FileDownloadImplementor { 5 | 6 | @Override 7 | public Object downloadFile(String path) { 8 | return new Object(); 9 | } 10 | 11 | @Override 12 | public boolean storeFile(Object object) { 13 | System.out.println("File download successfully in WINDOWS !!"); 14 | return true; 15 | } 16 | 17 | } 18 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/abstraction_change/FileDownloaderAbstraction.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge.abstraction_change; 2 | 3 | public interface FileDownloaderAbstraction { 4 | public Object download(String path); 5 | 6 | public boolean store(Object object); 7 | 8 | // 添加接口 9 | public boolean delete(String object); 10 | } -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/abstraction_change/FileDownloaderAbstractionImpl.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge.abstraction_change; 2 | 3 | import io.spring2go.corespring.bridge.FileDownloadImplementor; 4 | import io.spring2go.corespring.bridge.abstraction_change.FileDownloaderAbstraction; 5 | 6 | public class FileDownloaderAbstractionImpl implements FileDownloaderAbstraction { 7 | 8 | private FileDownloadImplementor provider = null; 9 | 10 | public FileDownloaderAbstractionImpl(FileDownloadImplementor provider) { 11 | super(); 12 | this.provider = provider; 13 | } 14 | 15 | @Override 16 | public Object download(String path) { 17 | return provider.downloadFile(path); 18 | } 19 | 20 | @Override 21 | public boolean store(Object object) { 22 | return provider.storeFile(object); 23 | } 24 | 25 | @Override 26 | public boolean delete(String object) { 27 | return false; 28 | } 29 | 30 | } 31 | -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/implementation_change/FileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge.implementation_change; 2 | 3 | public interface FileDownloadImplementor { 4 | public Object downloadFile(String path); 5 | 6 | public boolean storeFile(Object object); 7 | 8 | // 增加接口 9 | public boolean delete(String object); 10 | } -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/implementation_change/LinuxFileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge.implementation_change; 2 | 3 | public class LinuxFileDownloadImplementor implements FileDownloadImplementor { 4 | @Override 5 | public Object downloadFile(String path) { 6 | return new Object(); 7 | } 8 | 9 | @Override 10 | public boolean storeFile(Object object) { 11 | System.out.println("File downloaded successfully in LINUX !!"); 12 | return true; 13 | } 14 | 15 | @Override 16 | public boolean delete(String object) { 17 | return false; 18 | } 19 | } -------------------------------------------------------------------------------- /patterns/structural/bridge/src/main/java/io/spring2go/corespring/bridge/implementation_change/WindowsFileDownloadImplementor.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.bridge.implementation_change; 2 | 3 | public class WindowsFileDownloadImplementor implements FileDownloadImplementor 4 | { 5 | @Override 6 | public Object downloadFile(String path) { 7 | return new Object(); 8 | } 9 | 10 | @Override 11 | public boolean storeFile(Object object) { 12 | System.out.println("File downloaded successfully in LINUX !!"); 13 | return true; 14 | } 15 | 16 | @Override 17 | public boolean delete(String object) { 18 | return false; 19 | } 20 | } -------------------------------------------------------------------------------- /patterns/structural/composite/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go 5 | Composite 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/BaseEmployee.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | import java.util.List; 4 | 5 | public abstract class BaseEmployee implements IEmployee { 6 | 7 | protected String name; 8 | protected int employeeId; 9 | protected List subscriptions; 10 | 11 | @Override 12 | public String getName() { 13 | return this.name; 14 | } 15 | 16 | @Override 17 | public void setName(String name) { 18 | this.name = name; 19 | } 20 | 21 | @Override 22 | public int getEmployeeId() { 23 | return this.employeeId; 24 | } 25 | 26 | @Override 27 | public void setEmployeeId(int employeeId) { 28 | this.employeeId = employeeId; 29 | } 30 | 31 | @Override 32 | public List getSubscriptions() { 33 | return this.subscriptions; 34 | } 35 | 36 | @Override 37 | public void setSubscriptions(List subscriptions) { 38 | this.subscriptions = subscriptions; 39 | } 40 | } 41 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/CompanyMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | import java.util.Arrays; 4 | import java.util.List; 5 | 6 | public class CompanyMain { 7 | 8 | public static void main(String[] args) { 9 | // 创建一些开发者并赋予订购项 10 | IEmployee emp1 = new Developer("A", 1); 11 | List subs = Arrays.asList(Util.getIntellijSubscription(), Util.getJProfilierSubscription(), 12 | Util.getCSDNSubscription(), Util.getTrainingSubscription()); 13 | emp1.setSubscriptions(subs); 14 | 15 | IEmployee emp2 = new Developer("B", 2); 16 | subs = Arrays.asList(Util.getIntellijSubscription(), Util.getJProfilierSubscription()); 17 | emp2.setSubscriptions(subs); 18 | 19 | IEmployee emp3 = new Developer("C", 3); 20 | subs = Arrays.asList(Util.getIntellijSubscription()); 21 | emp3.setSubscriptions(subs); 22 | 23 | IEmployee emp4 = new Developer("D", 4); 24 | subs = Arrays.asList(Util.getIntellijSubscription()); 25 | emp4.setSubscriptions(subs); 26 | 27 | IEmployee emp5 = new Developer("E", 5); 28 | subs = Arrays.asList(Util.getIntellijSubscription()); 29 | emp5.setSubscriptions(subs); 30 | 31 | IEmployee emp6 = new Developer("F", 6); 32 | subs = Arrays.asList(Util.getIntellijSubscription(), Util.getTrainingSubscription()); 33 | emp6.setSubscriptions(subs); 34 | 35 | IEmployee emp7 = new Developer("G", 7); 36 | subs = Arrays.asList(Util.getIntellijSubscription()); 37 | emp7.setSubscriptions(subs); 38 | 39 | IEmployee emp8 = new Developer("H", 8); 40 | subs = Arrays.asList(Util.getIntellijSubscription()); 41 | emp8.setSubscriptions(subs); 42 | 43 | IEmployee emp9 = new Developer("I", 9); 44 | subs = Arrays.asList(Util.getIntellijSubscription()); 45 | emp9.setSubscriptions(subs); 46 | 47 | IEmployee emp10 = new Developer("J", 10); 48 | subs = Arrays.asList(Util.getIntellijSubscription(), Util.getCSDNSubscription()); 49 | emp10.setSubscriptions(subs); 50 | 51 | // 获取单个员工的成本细节 52 | System.out.println("Let's get cost details of single employee"); 53 | Util.printCostDetails(emp1); 54 | 55 | // 获取一组员工的成本细节 56 | List employees = Arrays.asList(emp1, emp2, emp3, emp4, emp5, emp6, emp7, emp8, emp9, emp10); 57 | System.out.println("Let's check cost details of list of employees"); 58 | for(IEmployee employee : employees) { 59 | Util.printCostDetails(employee); 60 | } 61 | 62 | // 设置经理 63 | subs = Arrays.asList(Util.getIntellijSubscription(), Util.getJProfilierSubscription(), 64 | Util.getCSDNSubscription(), Util.getTrainingSubscription()); 65 | List teamMembers = Arrays.asList(emp1, emp2, emp3); 66 | IEmployee mng1 = new Manager("MA", 11, subs, teamMembers); 67 | 68 | subs = Arrays.asList(Util.getIntellijSubscription()); 69 | teamMembers = Arrays.asList(emp4, emp5, emp6); 70 | IEmployee mng2 = new Manager("MB", 12, subs, teamMembers); 71 | 72 | subs = Arrays.asList(Util.getTrainingSubscription()); 73 | teamMembers = Arrays.asList(emp7, emp8, emp9, emp10); 74 | IEmployee mng3 = new Manager("MC", 13, subs, teamMembers); 75 | 76 | // 获取单个经理的成本细节 77 | System.out.println("Let's get cost details of single manager"); 78 | Util.printCostDetails(mng1); 79 | 80 | // 获取一组经理的成本细节 81 | System.out.println("Let's check details of list of manager"); 82 | List managers = Arrays.asList(mng1, mng2, mng3); 83 | for(IEmployee employee : managers) { 84 | Util.printCostDetails(employee); 85 | } 86 | } 87 | 88 | } 89 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/Developer.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | // Leaf 4 | public class Developer extends BaseEmployee { 5 | 6 | public Developer(String name, int employeeId) { 7 | this.name = name; 8 | this.employeeId = employeeId; 9 | } 10 | 11 | public double getCost() { 12 | if (subscriptions== null) 13 | return 0; 14 | double cost = subscriptions.stream().mapToDouble(s -> s.getCost()).sum(); 15 | return cost; 16 | } 17 | 18 | public int getSubscriptionCount(SubscriptionType type) { 19 | if (subscriptions == null) 20 | return 0; 21 | int count = (int) subscriptions.stream().filter(s -> s.getsType() == type).count(); 22 | return count; 23 | } 24 | 25 | } 26 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/IEmployee.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | import java.util.List; 4 | 5 | //Component 6 | public interface IEmployee { 7 | public String getName(); 8 | 9 | public void setName(String name); 10 | 11 | public int getEmployeeId(); 12 | 13 | public void setEmployeeId(int employeeId); 14 | 15 | public List getSubscriptions(); 16 | 17 | public void setSubscriptions(List subscriptions); 18 | 19 | public double getCost(); 20 | 21 | public int getSubscriptionCount(SubscriptionType type); 22 | } 23 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/Manager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | import java.util.List; 4 | 5 | // Composite 6 | public class Manager extends BaseEmployee { 7 | 8 | private List teamMembers; 9 | 10 | public Manager(String name, int employeeId, 11 | List subscriptions, 12 | List teamMembers) { 13 | this.name = name; 14 | this.employeeId = employeeId; 15 | this.subscriptions = subscriptions; 16 | this.teamMembers = teamMembers; 17 | } 18 | 19 | public List getTeamMembers() { 20 | return teamMembers; 21 | } 22 | 23 | public void setTeamMembers(List teamMembers) { 24 | this.teamMembers = teamMembers; 25 | } 26 | 27 | @Override 28 | public double getCost() { 29 | double subsCost = 0.0; 30 | if (subscriptions != null) { 31 | subsCost = subscriptions.stream().mapToDouble(s -> s.getCost()).sum(); 32 | } 33 | 34 | double membersCost = 0.0; 35 | if (teamMembers != null) { 36 | membersCost = teamMembers.stream().mapToDouble(m -> m.getCost()).sum(); 37 | } 38 | 39 | return subsCost + membersCost; 40 | } 41 | 42 | @Override 43 | public int getSubscriptionCount(SubscriptionType type) { 44 | int subCount = 0; 45 | if (subscriptions != null) { 46 | subCount = (int) subscriptions.stream().filter(s -> s.getsType() == type).count(); 47 | } 48 | 49 | int membersSubCount = 0; 50 | if (teamMembers != null) { 51 | for (IEmployee member: teamMembers) { 52 | List subs = member.getSubscriptions(); 53 | if (subs != null) { 54 | for(Subscription sub : subs) { 55 | if (sub.getsType() == type) { 56 | membersSubCount++; 57 | } 58 | } 59 | } 60 | } 61 | } 62 | 63 | return subCount + membersSubCount; 64 | } 65 | 66 | } 67 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/Subscription.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | public class Subscription { 4 | private SubscriptionType sType; // 订购类型 5 | private String name; // 名称 6 | private double cost; // 费用 7 | 8 | public SubscriptionType getsType() { 9 | return sType; 10 | } 11 | public void setsType(SubscriptionType sType) { 12 | this.sType = sType; 13 | } 14 | public String getName() { 15 | return name; 16 | } 17 | public void setName(String name) { 18 | this.name = name; 19 | } 20 | public double getCost() { 21 | return cost; 22 | } 23 | public void setCost(double cost) { 24 | this.cost = cost; 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/SubscriptionType.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | public enum SubscriptionType { 4 | PRINT, // 打印 5 | SOFTWARE_LICENSE, // 软件License 6 | TRAINING; // 培训 7 | } 8 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_complex/Util.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_complex; 2 | 3 | public class Util { 4 | 5 | public static void printCostDetails(IEmployee employee) { 6 | double cost = employee.getCost(); 7 | int licenseSubCount = employee.getSubscriptionCount(SubscriptionType.SOFTWARE_LICENSE); 8 | int printSubCount = employee.getSubscriptionCount(SubscriptionType.PRINT); 9 | int trainingSubCount = employee.getSubscriptionCount(SubscriptionType.TRAINING); 10 | String outMsg = "Cost: %f, Count License: %d, Count Print: %d, Count Training: %d, Emp ID: %d\n"; 11 | System.out.print(String.format(outMsg, cost, licenseSubCount, printSubCount, trainingSubCount, employee.getEmployeeId())); 12 | } 13 | 14 | public static Subscription getIntellijSubscription() { 15 | Subscription sub = new Subscription(); 16 | sub.setCost(30); 17 | sub.setName("Intellij License"); 18 | sub.setsType(SubscriptionType.SOFTWARE_LICENSE); 19 | return sub; 20 | } 21 | 22 | public static Subscription getJProfilierSubscription() { 23 | Subscription sub = new Subscription(); 24 | sub.setCost(20); 25 | sub.setName("JProfilier License"); 26 | sub.setsType(SubscriptionType.SOFTWARE_LICENSE); 27 | return sub; 28 | } 29 | 30 | public static Subscription getCSDNSubscription() { 31 | Subscription sub = new Subscription(); 32 | sub.setName("CSDN Magazine"); 33 | sub.setsType(SubscriptionType.PRINT); 34 | sub.setCost(10); 35 | return sub; 36 | } 37 | 38 | public static Subscription getTrainingSubscription() { 39 | Subscription sub = new Subscription(); 40 | sub.setName("Java Design Pattern"); 41 | sub.setsType(SubscriptionType.TRAINING); 42 | sub.setCost(300); 43 | return sub; 44 | } 45 | } 46 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_simple/CompositePatternMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_simple; 2 | 3 | // Client 4 | public class CompositePatternMain { 5 | 6 | public static void main(String[] args) { 7 | IEmployee emp1 = new Developer("John", 10000); 8 | IEmployee emp2 = new Developer("David", 15000); 9 | IEmployee manager1 = new Manager("Daniel", 25000); 10 | manager1.add(emp1); 11 | manager1.add(emp2); 12 | IEmployee emp3 = new Developer("Michael", 20000); 13 | Manager generalManager = new Manager("Mark", 50000); 14 | generalManager.add(emp3); 15 | generalManager.add(manager1); 16 | generalManager.print(); 17 | } 18 | 19 | } 20 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_simple/Developer.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_simple; 2 | 3 | import io.spring2go.corespring.composite_simple.IEmployee; 4 | 5 | // leaf 6 | public class Developer implements IEmployee { 7 | 8 | private String name; 9 | private double salary; 10 | 11 | public Developer(String name, double salary) { 12 | this.name = name; 13 | this.salary = salary; 14 | } 15 | 16 | @Override 17 | public void add(IEmployee employee) { 18 | String msg = "not supported by leaf node."; 19 | throw new UnsupportedOperationException(msg); 20 | } 21 | 22 | @Override 23 | public void remove(IEmployee employee) { 24 | String msg = "not supported by leaf node."; 25 | throw new UnsupportedOperationException(msg); 26 | } 27 | 28 | @Override 29 | public IEmployee getChild(int i) { 30 | String msg = "not supported by leaf node.";; 31 | throw new UnsupportedOperationException(msg); 32 | } 33 | 34 | @Override 35 | public String getName() { 36 | return this.name; 37 | } 38 | 39 | @Override 40 | public double getSalary() { 41 | return this.salary; 42 | } 43 | 44 | @Override 45 | public void print() { 46 | System.out.println("-------------"); 47 | System.out.println("Name ="+getName()); 48 | System.out.println("Salary ="+getSalary()); 49 | System.out.println("-------------"); 50 | } 51 | } 52 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_simple/IEmployee.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_simple; 2 | 3 | // Component 4 | public interface IEmployee { 5 | public void add(IEmployee employee); 6 | public void remove(IEmployee employee); 7 | public IEmployee getChild(int i); 8 | public String getName(); 9 | public double getSalary(); 10 | public void print(); 11 | } 12 | -------------------------------------------------------------------------------- /patterns/structural/composite/src/main/java/io/spring2go/corespring/composite_simple/Manager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.composite_simple; 2 | 3 | import java.util.ArrayList; 4 | import java.util.List; 5 | 6 | // Composite 7 | public class Manager implements IEmployee { 8 | 9 | private String name; 10 | private double salary; 11 | private List employees = new ArrayList(); 12 | 13 | public Manager(String name, double salary) { 14 | this.name = name; 15 | this.salary = salary; 16 | } 17 | 18 | @Override 19 | public void add(IEmployee employee) { 20 | employees.add(employee); 21 | } 22 | 23 | @Override 24 | public void remove(IEmployee employee) { 25 | employees.remove(employee); 26 | } 27 | 28 | @Override 29 | public IEmployee getChild(int i) { 30 | return employees.get(i); 31 | } 32 | 33 | @Override 34 | public String getName() { 35 | return this.name; 36 | } 37 | 38 | @Override 39 | public double getSalary() { 40 | return this.salary; 41 | } 42 | 43 | @Override 44 | public void print() { 45 | System.out.println("-------------"); 46 | System.out.println("Name =" + getName()); 47 | System.out.println("Salary =" + getSalary()); 48 | System.out.println("-------------"); 49 | 50 | for(IEmployee employee : this.employees) { 51 | employee.print(); 52 | } 53 | } 54 | } 55 | -------------------------------------------------------------------------------- /patterns/structural/decorator/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Decorator 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/ArtificialScentDecorator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | //Concrete Decorator 4 | public class ArtificialScentDecorator extends Decorator { 5 | 6 | protected ArtificialScentDecorator(BakeryComponent baseComponent) { 7 | super(baseComponent); 8 | this.name = "Artificial Scent"; 9 | this.price = 3.0; 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/BakeryComponent.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | // Component Interface 4 | public interface BakeryComponent { 5 | 6 | public String getName(); 7 | 8 | public double getPrice(); 9 | 10 | } 11 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/CakeBase.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | // ConcreteComponent 4 | public class CakeBase implements BakeryComponent { 5 | 6 | private String name = "Cake Base"; 7 | private double price = 200.0; 8 | 9 | @Override 10 | public String getName() { 11 | return this.name; 12 | } 13 | 14 | @Override 15 | public double getPrice() { 16 | return this.price; 17 | } 18 | 19 | } 20 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/CherryDecorator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | //Concrete Decorator 4 | public class CherryDecorator extends Decorator { 5 | 6 | protected CherryDecorator(BakeryComponent baseComponent) { 7 | super(baseComponent); 8 | this.name = "Cherry"; 9 | this.price = 2.0; 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/CreamDecorator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | // Concrete Decorator 4 | public class CreamDecorator extends Decorator { 5 | 6 | protected CreamDecorator(BakeryComponent baseComponent) { 7 | super(baseComponent); 8 | this.name = "Cream"; 9 | this.price = 1.0; 10 | } 11 | 12 | } 13 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/Decorator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | // Decorator 4 | public abstract class Decorator implements BakeryComponent { 5 | 6 | private BakeryComponent baseComponent = null; 7 | 8 | protected String name = "Undefined Decorator"; 9 | protected double price = 0.0; 10 | 11 | protected Decorator(BakeryComponent baseComponent) { 12 | this.baseComponent = baseComponent; 13 | } 14 | 15 | @Override 16 | public String getName() { 17 | return this.baseComponent.getName() + ", " + this.name; 18 | } 19 | 20 | @Override 21 | public double getPrice() { 22 | return this.price + this.baseComponent.getPrice(); 23 | } 24 | 25 | } 26 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/DecoratorMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | public class DecoratorMain { 4 | 5 | public static void main(String[] args) { 6 | // 先创建一个简单的Cake Base 7 | CakeBase cBase = new CakeBase(); 8 | Util.printProductDetails(cBase); 9 | 10 | // 在蛋糕上添加奶油 11 | CreamDecorator creamCake = new CreamDecorator(cBase); 12 | Util.printProductDetails(creamCake); 13 | 14 | // 在蛋糕上添加樱桃 15 | CherryDecorator cherryCake = new CherryDecorator(creamCake); 16 | Util.printProductDetails(cherryCake); 17 | 18 | // 再添加香味 19 | ArtificialScentDecorator scentedCake = 20 | new ArtificialScentDecorator(cherryCake); 21 | Util.printProductDetails(scentedCake); 22 | 23 | // 最后在蛋糕上添加名片 24 | NameCardDecorator nameCardOnCake = new NameCardDecorator(scentedCake); 25 | Util.printProductDetails(nameCardOnCake); 26 | 27 | // 现在创建一个简单的糕点 28 | PastryBase pastry = new PastryBase(); 29 | Util.printProductDetails(pastry); 30 | 31 | // 在糕点上只添加奶油和樱桃 32 | CreamDecorator creamPastry = new CreamDecorator(pastry); 33 | CherryDecorator cherryPastry = new CherryDecorator(creamPastry); 34 | Util.printProductDetails(cherryPastry); 35 | } 36 | 37 | } 38 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/NameCardDecorator.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | //Concrete Decorator 4 | public class NameCardDecorator extends Decorator { 5 | 6 | protected NameCardDecorator(BakeryComponent baseComponent) { 7 | super(baseComponent); 8 | this.name = "Name Card"; 9 | this.price = 4.0; 10 | } 11 | 12 | @Override 13 | public String getName() { 14 | return super.getName() + 15 | "(Please Collect your discount card for " + 16 | this.price + 17 | ")"; 18 | } 19 | 20 | } 21 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/PastryBase.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | // ConcreteComponent 4 | public class PastryBase implements BakeryComponent { 5 | 6 | private String name = "Pastry Base"; 7 | private double price = 20.0; 8 | 9 | @Override 10 | public String getName() { 11 | return this.name; 12 | } 13 | 14 | @Override 15 | public double getPrice() { 16 | return this.price; 17 | } 18 | 19 | } 20 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/Util.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.decorator; 2 | 3 | public class Util { 4 | public static void printProductDetails(BakeryComponent bComponent) { 5 | String out = "Item: " + bComponent.getName() + ", " + "Price: " + bComponent.getPrice(); 6 | System.out.println(out); 7 | } 8 | } 9 | -------------------------------------------------------------------------------- /patterns/structural/decorator/src/main/java/io/spring2go/corespring/decorator/uml.ucls: -------------------------------------------------------------------------------- 1 | 2 | 4 | 7 | 8 | 10 | 11 | 12 | 13 | 14 | 16 | 17 | 19 | 20 | 21 | 22 | 23 | 26 | 27 | 29 | 30 | 31 | 32 | 33 | 36 | 37 | 39 | 40 | 41 | 42 | 43 | 46 | 47 | 49 | 50 | 51 | 52 | 53 | 56 | 57 | 59 | 60 | 61 | 62 | 63 | 66 | 67 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | 104 | 105 | 106 | 108 | 109 | 110 | 111 | 112 | -------------------------------------------------------------------------------- /patterns/structural/facade/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Facade 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/CostManager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 费用计算实现 4 | public class CostManager implements ICosting { 5 | 6 | @Override 7 | public float applyDiscount(float price, float discountPercent) { 8 | String out = String.format( 9 | "A discount of %f%% has been applied on the product's price of %f", 10 | discountPercent, price); 11 | System.out.println(out); 12 | return price - ((discountPercent / 100) * price); 13 | } 14 | 15 | } 16 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/FacadeMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | public class FacadeMain { 4 | 5 | public static void main(String[] args) { 6 | // Creating the Order/Product details 7 | OrderDetails orderDetails = new OrderDetails("Java Design Pattern book", 8 | "Simplified book on design patterns in Java", 9 | 500, 10, "Street No 1", "Educational Area", 1212, 10 | "8811123456"); 11 | 12 | // Using Facade 13 | OnlineShoppingFacade facade = new OnlineShoppingFacade(); 14 | facade.finalizeOrder(orderDetails); 15 | 16 | } 17 | 18 | } 19 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/ICosting.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 费用计算接口 4 | public interface ICosting { 5 | public float applyDiscount(float price, float discountPercent); 6 | } 7 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/IInventory.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 库存接口 4 | public interface IInventory { 5 | public void update(int productId); 6 | } 7 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/ILogistics.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 物流接口 4 | public interface ILogistics { 5 | public void shipProducts(String productName, String shippingAddress); 6 | } 7 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/IOrderVerify.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 订单校验接口 4 | public interface IOrderVerify { 5 | public boolean verifyShippingAddress(int pincode); 6 | } 7 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/IPaymentGateway.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 支付接口 4 | public interface IPaymentGateway { 5 | public boolean verifyCardDetails(String cardNo); 6 | public boolean processPayment(String cardNo, float cost); 7 | } 8 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/InventoryManager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 库存实现 4 | public class InventoryManager implements IInventory { 5 | 6 | @Override 7 | public void update(int productId) { 8 | String msg = "Product# " + productId + 9 | " is subtracted from store's inventory"; 10 | System.out.println(msg); 11 | } 12 | 13 | } 14 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/LogisticsManager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 物流实现 4 | public class LogisticsManager implements ILogistics { 5 | 6 | @Override 7 | public void shipProducts(String productName, String shippingAddress) { 8 | String out = String.format( 9 | "Congratulations your product %s has been shipped at the following address: %s.", 10 | productName, shippingAddress); 11 | System.out.println(out); 12 | } 13 | 14 | } 15 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/NoFacadeMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // Client Code without Facade. 4 | public class NoFacadeMain { 5 | 6 | public static void main(String[] args) { 7 | // Creating the Order/Product details 8 | OrderDetails orderDetails = new OrderDetails("Java Design Pattern book", 9 | "Simplified book on design patterns in Java", 10 | 500, 10, "Street No 1", "Educational Area", 1212, 11 | "8811123456"); 12 | 13 | // Updating the inventory. 14 | IInventory inventory = new InventoryManager(); 15 | inventory.update(orderDetails.getProductNo()); 16 | 17 | // verifying various details for the order such as the shipping address. 18 | IOrderVerify orderVerify = new OrderVerificationManager(); 19 | orderVerify.verifyShippingAddress(orderDetails.getPinCode()); 20 | 21 | // Calculating the final cost after applying various discounts. 22 | ICosting costManager = new CostManager(); 23 | orderDetails.setPrice( 24 | costManager.applyDiscount( 25 | orderDetails.getPrice(), 26 | orderDetails.getDiscountPercent() 27 | ) 28 | ); 29 | 30 | // Going through various steps if payment gateway like card verification, 31 | // charging from the card. 32 | IPaymentGateway paymentGateway = new PaymentGatewayManager(); 33 | paymentGateway.verifyCardDetails(orderDetails.getCardNo()); 34 | paymentGateway.processPayment(orderDetails.getCardNo(), orderDetails.getPrice()); 35 | 36 | // Completing the order by providing logistics. 37 | ILogistics logistics = new LogisticsManager(); 38 | String shippingAddress = String.format("%s, %s - %d", 39 | orderDetails.getAddressLine1(), 40 | orderDetails.getAddressLine2(), 41 | orderDetails.getPinCode()); 42 | logistics.shipProducts(orderDetails.getProductName(), shippingAddress); 43 | } 44 | 45 | } 46 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/OnlineShoppingFacade.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | public class OnlineShoppingFacade { 4 | IInventory inventory = new InventoryManager(); 5 | IOrderVerify orderVerify = new OrderVerificationManager(); 6 | ICosting costManager = new CostManager(); 7 | IPaymentGateway paymentGateway = new PaymentGatewayManager(); 8 | ILogistics logistics = new LogisticsManager(); 9 | 10 | public void finalizeOrder(OrderDetails orderDetails) { 11 | inventory.update(orderDetails.getProductNo()); 12 | orderVerify.verifyShippingAddress(orderDetails.getPinCode()); 13 | orderDetails.setPrice( 14 | costManager.applyDiscount( 15 | orderDetails.getPrice(), 16 | orderDetails.getDiscountPercent() 17 | ) 18 | ); 19 | paymentGateway.verifyCardDetails(orderDetails.getCardNo()); 20 | paymentGateway.processPayment(orderDetails.getCardNo(), orderDetails.getPrice()); 21 | String shippingAddress = String.format("%s, %s - %d", 22 | orderDetails.getAddressLine1(), 23 | orderDetails.getAddressLine2(), 24 | orderDetails.getPinCode()); 25 | logistics.shipProducts(orderDetails.getCardNo(), shippingAddress); 26 | } 27 | } 28 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/OrderDetails.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | import java.util.Random; 4 | 5 | public class OrderDetails { 6 | // region 私有成员 7 | private int productNo; 8 | private String productName; 9 | private String productDescription; 10 | private float price; 11 | private float discountPercent; 12 | private String addressLine1; 13 | private String addressLine2; 14 | private int pinCode; 15 | private String cardNo; 16 | // endregion 17 | 18 | public OrderDetails(String productName, String prodDescription, float price, 19 | float discount, String addressLine1, String addressLine2, 20 | int pinCode, String cardNo) { 21 | this.productNo = new Random(1).nextInt(100); 22 | this.productName = productName; 23 | this.productDescription = prodDescription; 24 | this.price = price; 25 | this.discountPercent = discount; 26 | this.addressLine1 = addressLine1; 27 | this.addressLine2 = addressLine2; 28 | this.pinCode = pinCode; 29 | this.cardNo = cardNo; 30 | } 31 | 32 | // region getters 33 | public int getProductNo() { 34 | return productNo; 35 | } 36 | 37 | public void setProductNo(int productNo) { 38 | this.productNo = productNo; 39 | } 40 | 41 | public String getProductName() { 42 | return productName; 43 | } 44 | 45 | public void setProductName(String productName) { 46 | this.productName = productName; 47 | } 48 | 49 | public String getProductDescription() { 50 | return productDescription; 51 | } 52 | 53 | public void setProductDescription(String productDescription) { 54 | this.productDescription = productDescription; 55 | } 56 | 57 | public float getPrice() { 58 | return price; 59 | } 60 | 61 | public void setPrice(float price) { 62 | this.price = price; 63 | } 64 | 65 | public float getDiscountPercent() { 66 | return discountPercent; 67 | } 68 | 69 | public void setDiscountPercent(float discountPercent) { 70 | this.discountPercent = discountPercent; 71 | } 72 | 73 | public String getAddressLine1() { 74 | return addressLine1; 75 | } 76 | 77 | public void setAddressLine1(String addressLine1) { 78 | this.addressLine1 = addressLine1; 79 | } 80 | 81 | public String getAddressLine2() { 82 | return addressLine2; 83 | } 84 | 85 | public void setAddressLine2(String addressLine2) { 86 | this.addressLine2 = addressLine2; 87 | } 88 | 89 | public int getPinCode() { 90 | return pinCode; 91 | } 92 | 93 | public void setPinCode(int pinCode) { 94 | this.pinCode = pinCode; 95 | } 96 | 97 | public String getCardNo() { 98 | return cardNo; 99 | } 100 | 101 | public void setCardNo(String cardNo) { 102 | this.cardNo = cardNo; 103 | } 104 | // endregion 105 | } 106 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/OrderVerificationManager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 订单校验实现 4 | public class OrderVerificationManager implements IOrderVerify { 5 | 6 | @Override 7 | public boolean verifyShippingAddress(int pincode) { 8 | System.out.println( 9 | "The product can be shipped to the pincode " 10 | + pincode); 11 | return true; 12 | } 13 | 14 | } 15 | -------------------------------------------------------------------------------- /patterns/structural/facade/src/main/java/io/spring2go/corespring/facade/PaymentGatewayManager.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring.facade; 2 | 3 | // 支付实现 4 | public class PaymentGatewayManager implements IPaymentGateway { 5 | 6 | @Override 7 | public boolean verifyCardDetails(String cardNo) { 8 | String out = "Card# " + cardNo + 9 | " has been verified and is accepted."; 10 | System.out.println(out); 11 | return true; 12 | } 13 | 14 | @Override 15 | public boolean processPayment(String cardNo, float cost) { 16 | String out = "Card# " + cardNo + 17 | " is used to make a payment of " + cost + "."; 18 | System.out.println(out); 19 | return true; 20 | } 21 | 22 | } 23 | -------------------------------------------------------------------------------- /patterns/structural/proxy/pom.xml: -------------------------------------------------------------------------------- 1 | 3 | 4.0.0 4 | io.spring2go.corespring 5 | Proxy 6 | 0.0.1-SNAPSHOT 7 | 8 | 9 | UTF-8 10 | UTF-8 11 | 1.8 12 | 1.8 13 | 14 | 15 | -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/Folder.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // RealSubject 4 | public class Folder implements IFolder { 5 | 6 | public void performOperations() { 7 | // access folder and perform various operations like copy or cut files 8 | System.out.println("Performing operation on folder"); 9 | } 10 | 11 | } 12 | -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/FolderProxy.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // Proxy 4 | public class FolderProxy implements IFolder { 5 | 6 | Folder folder; 7 | User user; 8 | 9 | public FolderProxy(User user) { 10 | this.user = user; 11 | } 12 | 13 | public void performOperations() { 14 | if (user.getUserName().equalsIgnoreCase("bobo") && 15 | user.getPassword().equalsIgnoreCase("xyz")) { 16 | folder = new Folder(); 17 | folder.performOperations(); 18 | } else { 19 | System.out.println("You don't have access to this folder"); 20 | } 21 | } 22 | 23 | } 24 | -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/IFolder.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // Subject 4 | public interface IFolder { 5 | 6 | public void performOperations(); 7 | 8 | } -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/ProxyDesignPatternMain.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | // Client 4 | public class ProxyDesignPatternMain { 5 | 6 | public static void main(String[] args) { 7 | // When you click on folder, Let's say a GUI form will ask for 8 | // usesrName and password. 9 | // and this GUI will create this user object 10 | 11 | // If we give correct userName and password 12 | User user = new User("bobo", "xyz"); 13 | FolderProxy folderProxy = new FolderProxy(user); 14 | System.out.println("When userName and password are correct:"); 15 | folderProxy.performOperations(); 16 | System.out.println("**************************************"); 17 | // if we give wrong userName and Password 18 | User userWrong = new User("abc", "abc"); 19 | FolderProxy folderProxyWrong = new FolderProxy(userWrong); 20 | System.out.println("When userName and password are incorrect"); 21 | folderProxyWrong.performOperations(); 22 | } 23 | 24 | } 25 | -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/User.java: -------------------------------------------------------------------------------- 1 | package io.spring2go.corespring; 2 | 3 | public class User { 4 | 5 | String username; 6 | String password; 7 | 8 | public User(String username, String password) { 9 | this.username = username; 10 | this.password = password; 11 | } 12 | 13 | public String getUserName() { 14 | return this.username; 15 | } 16 | 17 | public String getPassword() { 18 | return this.password; 19 | } 20 | 21 | } 22 | -------------------------------------------------------------------------------- /patterns/structural/proxy/src/main/java/io/spring2go/corespring/uml.ucls: 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