Facade Pattern - Example of Entertainment unit simplifiying the operations of downloading and playing movie, music and games

premaseem · premaseem · commit 5deabc7d34da · 2014-09-12T18:33:03.000+05:30
diff --git a/FacadePattern/.gitignore b/FacadePattern/.gitignore
@@ -0,0 +1 @@
+/bin
diff --git a/FacadePattern/src/com/premaseem/facade/ClientForEntertainmentUnitFacade.java b/FacadePattern/src/com/premaseem/facade/ClientForEntertainmentUnitFacade.java
@@ -0,0 +1,49 @@
+package com.premaseem.facade;
+
+import java.util.Scanner;
+
+public class ClientForEntertainmentUnitFacade {
+
+	public static void main(String[] args) {
+		Scanner scan = new Scanner(System.in);
+		int repeatRunFlag = 1;
+		
+
+			System.out.println("This is Facade Pattern example which provides a smiple interface for the client to play a moive in entertainment unit (simplifies the setup proccess of entertainment unit) ");
+
+			EntertainmentFacade entertainmentFacade = new EntertainmentFacade();
+			while (repeatRunFlag == 1) {
+			System.out.println("What would you like to do with your entertainment unit today ");
+			System.out.println(" Press 1 for movie");
+			System.out.println(" Press 2 for music");
+			System.out.println(" Press 3 for game ");
+			int entType = scan.nextInt();
+			System.out.println("Please enter the name ");
+			String name = scan.next();
+			
+			
+			switch (entType) {
+			case 1:
+				entertainmentFacade.playMovie(name);
+				break;
+			case 2:
+				entertainmentFacade.playMusic(name);
+				break;
+			case 3:
+				entertainmentFacade.playGame(name);
+				break;
+			}
+
+			System.out.println("Press 1 for more entertainment and 0 for EXIT .... ");
+			try {
+				repeatRunFlag = scan.nextInt();
+			} catch (Exception e) {
+				repeatRunFlag = 0;
+			}finally{
+				entertainmentFacade.masterPowerOff();
+			}
+			
+			
+		}
+	}
+}
diff --git a/FacadePattern/src/com/premaseem/facade/EntertainmentDevice.java b/FacadePattern/src/com/premaseem/facade/EntertainmentDevice.java
@@ -0,0 +1,51 @@
+package com.premaseem.facade;
+
+public class EntertainmentDevice {
+
+}
+
+class Nexus {
+	public void downloadmedia(String name) {
+		System.out.println("Searching the media ");
+		System.out.println("Making online payment ");
+		System.out.println("downloaded from Nexus" + name);
+	}
+}
+
+class Amplifier {
+
+	void powerOn() {
+		System.out.println("Power on Amplifier");
+	}
+
+	void powerOff() {
+		System.out.println("power Off Amplifer ");
+	}
+
+	void attachAmplifierForMusic() {
+		System.out.println("Attaching music amplification");
+	}
+
+	void attachAmplifierForHomeTheater() {
+		System.out.println("Attaching movie amplification ");
+	}
+}
+
+class Projecter {
+
+	void powerOn() {
+		System.out.println("Power on Projector");
+	}
+
+	void powerOff() {
+		System.out.println("power Off Projector ");
+	}
+
+	void adjustProjectorForMovie() {
+		System.out.println("Attaching home theater mode");
+	}
+
+	void adjustProjectorForGame() {
+		System.out.println("Attaching game console ");
+	}
+}
diff --git a/FacadePattern/src/com/premaseem/facade/EntertainmentFacade.java b/FacadePattern/src/com/premaseem/facade/EntertainmentFacade.java
@@ -0,0 +1,39 @@
+package com.premaseem.facade;
+
+public class EntertainmentFacade {
+
+	Nexus nexus = new Nexus();
+	Amplifier amplifer = new Amplifier();
+	Projecter projector = new Projecter();
+
+	public void playMovie(String name) {
+		nexus.downloadmedia(name);
+		masterPowerOn();
+		amplifer.attachAmplifierForHomeTheater();
+		projector.adjustProjectorForMovie();
+	}
+
+	public void playMusic(String name) {
+		nexus.downloadmedia(name);
+		amplifer.powerOn();
+		amplifer.attachAmplifierForMusic();
+	}
+
+	public void playGame(String name) {
+		nexus.downloadmedia(name);
+		masterPowerOn();
+		amplifer.attachAmplifierForMusic();
+		projector.adjustProjectorForGame();
+	}
+
+	public void masterPowerOff() {
+		amplifer.powerOff();
+		projector.powerOff();
+	}
+
+	public void masterPowerOn() {
+		amplifer.powerOn();
+		projector.powerOn();
+	}
+	
+}
