[JAVA-14174] Renamed paterns to paterns-module (#12718)

* [JAVA-14174] Renamed paterns to paterns-module * [JAVA-14174] naming fixes Co-authored-by: panagiotiskakos <[email protected]>
2022-09-19 12:14:14 +05:30
parent 74dcaa0935
commit 63a9bfbad9
518 changed files with 32 additions and 32 deletions
@@ -0,0 +1,8 @@
+### Relevant Articles:
+- [Facade Design Pattern in Java](https://www.baeldung.com/java-facade-pattern)
+- [Proxy, Decorator, Adapter and Bridge Patterns](https://www.baeldung.com/java-structural-design-patterns)
+- [Composite Design Pattern in Java](https://www.baeldung.com/java-composite-pattern)
+- [The Decorator Pattern in Java](https://www.baeldung.com/java-decorator-pattern)
+- [The Adapter Pattern in Java](https://www.baeldung.com/java-adapter-pattern)
+- [The Proxy Pattern in Java](https://www.baeldung.com/java-proxy-pattern)
+- [The Bridge Pattern in Java](https://www.baeldung.com/java-bridge-pattern)
@@ -0,0 +1,25 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+    <artifactId>design-patterns-structural</artifactId>
+    <version>1.0</version>
+    <name>design-patterns-structural</name>
+    <packaging>jar</packaging>
+
+    <parent>
+        <groupId>com.baeldung</groupId>
+        <artifactId>patterns-modules</artifactId>
+        <version>1.0.0-SNAPSHOT</version>
+    </parent>
+
+    <dependencies>
+        <dependency>
+            <groupId>log4j</groupId>
+            <artifactId>log4j</artifactId>
+            <version>${log4j.version}</version>
+        </dependency>
+    </dependencies>
+
+</project>
@@ -0,0 +1,20 @@
+package com.baeldung.adapter;
+
+import static com.baeldung.util.LoggerUtil.LOG;
+
+public class AdapterPatternDriver {
+    
+    public static void main(String args[]) {
+    	Movable bugattiVeyron = new BugattiVeyron();
+    	MovableAdapter bugattiVeyronAdapter = new MovableAdapterImpl(bugattiVeyron);
+        LOG.info("Bugatti Veyron Super Sport's top speed is " + bugattiVeyronAdapter.getSpeed() + " Kmph.");
+
+        Movable mcLaren = new McLaren();
+        MovableAdapter mcLarenAdapter = new MovableAdapterImpl(mcLaren);
+        LOG.info("McLaren F1 top speed is " + mcLarenAdapter.getSpeed() + " Kmph.");
+
+        Movable astonMartin = new AstonMartin();
+        MovableAdapter astonMartinAdapter = new MovableAdapterImpl(astonMartin);
+        LOG.info("McLaren F1 top speed is " + astonMartinAdapter.getSpeed() + " Kmph.");
+    }
+}
@@ -0,0 +1,8 @@
+package com.baeldung.adapter;
+
+public class AstonMartin implements Movable {
+    @Override
+    public double getSpeed() {
+        return 220;
+    }
+}
@@ -0,0 +1,8 @@
+package com.baeldung.adapter;
+
+public class BugattiVeyron implements Movable {
+    @Override
+    public double getSpeed() {
+        return 268;
+    }
+}
@@ -0,0 +1,8 @@
+package com.baeldung.adapter;
+
+public class McLaren implements Movable {
+    @Override
+    public double getSpeed() {
+        return 241;
+    }
+}
@@ -0,0 +1,6 @@
+package com.baeldung.adapter;
+
+public interface Movable {
+    // returns speed in MPH 
+    double getSpeed();
+}
@@ -0,0 +1,6 @@
+package com.baeldung.adapter;
+
+public interface MovableAdapter {
+    // returns speed in KMPH 
+    double getSpeed();
+}
@@ -0,0 +1,19 @@
+package com.baeldung.adapter;
+
+public class MovableAdapterImpl implements MovableAdapter {
+    private Movable luxuryCars;
+    
+    public MovableAdapterImpl(Movable luxuryCars) {
+        this.luxuryCars = luxuryCars;
+    }
+
+    @Override
+    public double getSpeed() {
+        double mph = luxuryCars.getSpeed();
+        return convertMPHtoKMPH(mph);
+    }
+    
+    private double convertMPHtoKMPH(double mph) {
+        return mph * 1.60934;
+    }
+}
@@ -0,0 +1,8 @@
+package com.baeldung.bridge;
+
+public class Blue implements Color {
+    @Override
+    public String fill() {
+        return "Color is Blue";
+    }
+}
@@ -0,0 +1,14 @@
+package com.baeldung.bridge;
+
+public class BridgePatternDriver {
+
+    public static void main(String[] args) {
+        //a square with red color
+        Shape square = new Square(new Red());
+        System.out.println(square.draw());
+        
+        //a triangle with blue color
+        Shape triangle = new Triangle(new Blue());
+        System.out.println(triangle.draw());
+    }
+}
@@ -0,0 +1,5 @@
+package com.baeldung.bridge;
+
+public interface Color {
+    String fill();
+}
@@ -0,0 +1,10 @@
+package com.baeldung.bridge;
+
+public class Red implements Color {
+
+    @Override
+    public String fill() {
+        return "Color is Red";
+    }
+
+}
@@ -0,0 +1,11 @@
+package com.baeldung.bridge;
+
+public abstract class Shape {
+    protected Color color;
+    
+    public Shape(Color color) {
+        this.color = color;
+    }
+    
+    abstract public String draw();
+}
@@ -0,0 +1,13 @@
+package com.baeldung.bridge;
+
+public class Square extends Shape {
+
+    public Square(Color color) {
+        super(color);
+    }
+
+    @Override
+    public String draw() {
+        return "Square drawn. " + color.fill();
+    }
+}
@@ -0,0 +1,13 @@
+package com.baeldung.bridge;
+
+public class Triangle extends Shape {
+
+    public Triangle(Color color) {
+        super(color);
+    }
+
+    @Override
+    public String draw() {
+        return "Triangle drawn. "+ color.fill();
+    }
+}
@@ -0,0 +1,19 @@
+package com.baeldung.composite;
+
+/**
+ * Created by Gebruiker on 5/3/2018.
+ */
+public class CompositeDemo {
+
+    public static void main(String args[]) {
+        Department salesDepartment = new SalesDepartment(1, "Sales department");
+        Department financialDepartment = new FinancialDepartment(2, "Financial department");
+
+        HeadDepartment headDepartment = new HeadDepartment(3, "Head department");
+
+        headDepartment.addDepartMent(salesDepartment);
+        headDepartment.addDepartMent(financialDepartment);
+
+        headDepartment.printDepartmentName();
+    }
+}
@@ -0,0 +1,9 @@
+package com.baeldung.composite;
+
+/**
+ * Created by Gebruiker on 5/1/2018.
+ */
+public interface Department {
+
+    void printDepartmentName();
+}
@@ -0,0 +1,35 @@
+package com.baeldung.composite;
+
+/**
+ * Created by Gebruiker on 5/1/2018.
+ */
+public class FinancialDepartment implements Department {
+
+    private Integer id;
+    private String name;
+
+    public FinancialDepartment(Integer id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public void printDepartmentName() {
+        System.out.println(getClass().getSimpleName());
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
@@ -0,0 +1,33 @@
+package com.baeldung.composite;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Created by Gebruiker on 5/1/2018.
+ */
+public class HeadDepartment implements Department {
+
+    private Integer id;
+    private String name;
+
+    private List<Department> childDepartments;
+
+    public HeadDepartment(Integer id, String name) {
+        this.id = id;
+        this.name = name;
+        this.childDepartments = new ArrayList<Department>();
+    }
+
+    public void printDepartmentName() {
+        childDepartments.forEach(Department::printDepartmentName);
+    }
+
+    public void addDepartMent(Department department) {
+        childDepartments.add(department);
+    }
+
+    public void removeDepartment(Department department) {
+        childDepartments.remove(department);
+    }
+}
@@ -0,0 +1,35 @@
+package com.baeldung.composite;
+
+/**
+ * Created by Gebruiker on 5/1/2018.
+ */
+public class SalesDepartment implements Department {
+
+    private Integer id;
+    private String name;
+
+    public SalesDepartment(Integer id, String name) {
+        this.id = id;
+        this.name = name;
+    }
+
+    public void printDepartmentName() {
+        System.out.println(getClass().getSimpleName());
+    }
+
+    public Integer getId() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+}
@@ -0,0 +1,16 @@
+package com.baeldung.decorator;
+
+public class BubbleLights extends TreeDecorator {
+
+    public BubbleLights(ChristmasTree tree) {
+        super(tree);
+    }
+    
+    public String decorate() {
+        return super.decorate() + decorateWithBubbleLights();
+    }
+    
+    private String decorateWithBubbleLights() {
+        return " with Bubble Lights";
+    }
+}
@@ -0,0 +1,5 @@
+package com.baeldung.decorator;
+
+public interface ChristmasTree {
+    String decorate();
+}
@@ -0,0 +1,10 @@
+package com.baeldung.decorator;
+
+public class ChristmasTreeImpl implements ChristmasTree {
+
+    @Override
+    public String decorate() {
+        return "Christmas tree";
+    }
+
+}
@@ -0,0 +1,18 @@
+package com.baeldung.decorator;
+
+import static com.baeldung.util.LoggerUtil.LOG;
+
+public class DecoratorPatternDriver {
+
+    public static void main(String[] args) {
+        // christmas tree with just one Garland
+        ChristmasTree tree1 = new Garland(new ChristmasTreeImpl());
+        LOG.info(tree1.decorate());
+
+        // christmas tree with two Garlands and one Bubble lights
+        ChristmasTree tree2 = new BubbleLights(new Garland(new Garland(new ChristmasTreeImpl())));
+        LOG.info(tree2.decorate());
+
+    }
+
+}
@@ -0,0 +1,16 @@
+package com.baeldung.decorator;
+
+public class Garland extends TreeDecorator {
+
+    public Garland(ChristmasTree tree) {
+        super(tree);
+    }
+    
+    public String decorate() {
+        return super.decorate() + decorateWithGarland();
+    }
+
+    private String decorateWithGarland() {
+        return " with Garland";
+    }
+}
@@ -0,0 +1,15 @@
+package com.baeldung.decorator;
+
+public abstract class TreeDecorator implements ChristmasTree {
+    private ChristmasTree tree;
+    
+    public TreeDecorator(ChristmasTree tree) {
+        this.tree = tree;
+    }
+    
+    @Override
+    public String decorate() {
+        return tree.decorate();
+    }
+
+}
@@ -0,0 +1,32 @@
+package com.baeldung.facade;
+
+import com.baeldung.facade.carsystem.*;
+
+public class CarEngineFacade {
+    private static final Integer DEFAULT_COOLING_TEMP = 90;
+    private static final Integer MAX_ALLOWED_TEMP = 50;
+    private FuelInjector fuelInjector = new FuelInjector();
+    private AirFlowController airFlowController = new AirFlowController();
+    private Starter starter = new Starter();
+    private CoolingController coolingController = new CoolingController();
+    private CatalyticConverter catalyticConverter = new CatalyticConverter();
+
+    public void startEngine(){
+        fuelInjector.on();
+        airFlowController.takeAir();
+        fuelInjector.on();
+        fuelInjector.inject();
+        starter.start();
+        coolingController.setTemperatureUpperLimit(DEFAULT_COOLING_TEMP);
+        coolingController.run();
+        catalyticConverter.on();
+    }
+
+    public void stopEngine(){
+        fuelInjector.off();
+        catalyticConverter.off();
+        coolingController.cool(MAX_ALLOWED_TEMP);
+        coolingController.stop();
+        airFlowController.off();
+    }
+}
@@ -0,0 +1,19 @@
+package com.baeldung.facade.carsystem;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AirFlowController {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AirFlowController.class);
+    private AirFlowMeter airFlowMeter = new AirFlowMeter();
+
+    public void takeAir() {
+        airFlowMeter.getMeasurements();
+        LOGGER.info("Air provided!");
+    }
+
+    public void off() {
+        LOGGER.info("Air controller switched off.");
+    }
+}
@@ -0,0 +1,13 @@
+package com.baeldung.facade.carsystem;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class AirFlowMeter {
+
+    private static final Logger LOGGER = LoggerFactory.getLogger(AirFlowMeter.class);
+
+    public void getMeasurements() {
+        LOGGER.info("Getting air measurements..");
+    }
+}
--- a/Show More
+++ b/Show More