Proxy design pattern example - iPhone Proxy

premaseem · premaseem · commit d174c875e3b1 · 2018-02-17T23:58:49.000-06:00
diff --git a/patternBonus/src/com/premaseem/Client.java b/patternBonus/src/com/premaseem/Client.java
@@ -4,10 +4,28 @@
 @author: Aseem Jain
 @title: Design Patterns with Java 9
 @link: https://premaseem.wordpress.com/category/computers/design-patterns/
-@copyright: 2018 Packt Publication
 */
 public class Client {
     public static void main (String[] args) {
-        System.out.println("Singleton cook example ");
+        System.out.println("Proxy iPhone example");
+
+        // Programming against interface
+        IPhone iPhone;
+
+        // Loading proxy iPhone for selection purpose
+        iPhone = new ProxyiPhone();
+        phoneOperation(iPhone);
+
+        // Loading real iPhone for operational and sales purpose
+        iPhone = new RealiPhone();
+        phoneOperation(iPhone);
+
+    }
+
+    public static void phoneOperation(IPhone iPhone){
+        System.out.println("### Operations running on - "+ iPhone.getClass().getSimpleName());
+        iPhone.getColor();
+        iPhone.getDimension();
+        iPhone.operateDisplay();
     }
 }
diff --git a/patternBonus/src/com/premaseem/IPhone.java b/patternBonus/src/com/premaseem/IPhone.java
@@ -0,0 +1,14 @@
+package com.premaseem;
+
+/*
+@author: Aseem Jain
+@title: Design Patterns with Java 9
+@link: https://premaseem.wordpress.com/category/computers/design-patterns/
+*/
+public interface IPhone {
+
+  void getColor();
+  void getDimension();
+  void operateDisplay();
+
+}
diff --git a/patternBonus/src/com/premaseem/ProxyiPhone.java b/patternBonus/src/com/premaseem/ProxyiPhone.java
@@ -0,0 +1,23 @@
+package com.premaseem;
+
+/*
+@author: Aseem Jain
+@title: Design Patterns with Java 9
+@link: https://premaseem.wordpress.com/category/computers/design-patterns/
+*/
+public class ProxyiPhone implements IPhone{
+    @Override
+    public void getColor () {
+        System.out.println(this.getClass().getSimpleName() +" Colors: Gold, Rose Gold, Carbon Black");
+    }
+
+    @Override
+    public void getDimension () {
+        System.out.println(this.getClass().getSimpleName() +" Dimension: Normal and Plus");
+    }
+
+    @Override
+    public void operateDisplay () {
+        System.out.println(this.getClass().getSimpleName() +" Sorry, This is proxy object, display will work only in Real object");
+    }
+}
diff --git a/patternBonus/src/com/premaseem/RealiPhone.java b/patternBonus/src/com/premaseem/RealiPhone.java
@@ -0,0 +1,23 @@
+package com.premaseem;
+
+/*
+@author: Aseem Jain
+@title: Design Patterns with Java 9
+@link: https://premaseem.wordpress.com/category/computers/design-patterns/
+*/
+public class RealiPhone implements IPhone{
+    @Override
+    public void getColor () {
+        System.out.println(this.getClass().getSimpleName() +" Colors: Gold, Rose Gold, Carbon Black");
+    }
+
+    @Override
+    public void getDimension () {
+        System.out.println(this.getClass().getSimpleName() + " Dimension: Normal and Plus");
+    }
+
+    @Override
+    public void operateDisplay () {
+        System.out.println(this.getClass().getSimpleName() +" Multi color display working in real Phone object :-) ");
+    }
+}
