#90 Finished the example code

front-controller/src/main/java/com/iluwatar/App.java

@@ -1,7 +1,11 @@
 package com.iluwatar;
 
 public class App {
+	
 	public static void main(String[] args) {
-		System.out.println("Hello World!");
+		FrontController controller = new FrontController();
+		controller.handleRequest("Archer");
+		controller.handleRequest("Catapult");
+		controller.handleRequest("foobar");
 	}
 }

front-controller/src/main/java/com/iluwatar/ApplicationException.java

@@ -0,0 +1,8 @@
+package com.iluwatar;
+
+public class ApplicationException extends RuntimeException {
+
+    public ApplicationException(Throwable cause) {
+        super(cause);
+    }
+}

front-controller/src/main/java/com/iluwatar/ArcherCommand.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class ArcherCommand implements Command {
+
+	@Override
+	public void process() {
+		new ArcherView().display();
+	}
+}

front-controller/src/main/java/com/iluwatar/ArcherView.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class ArcherView implements View {
+
+	@Override
+	public void display() {
+		System.out.println("Displaying archers");
+	}
+}

front-controller/src/main/java/com/iluwatar/CatapultCommand.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class CatapultCommand implements Command {
+
+	@Override
+	public void process() {
+		new CatapultView().display();
+	}
+}

front-controller/src/main/java/com/iluwatar/CatapultView.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class CatapultView implements View {
+
+	@Override
+	public void display() {
+		System.out.println("Displaying catapults");
+	}
+}

front-controller/src/main/java/com/iluwatar/Command.java

@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public interface Command {
+	
+	void process();
+}

front-controller/src/main/java/com/iluwatar/FrontController.java

@@ -0,0 +1,28 @@
+package com.iluwatar;
+
+public class FrontController {
+	
+	public void handleRequest(String request) {
+		Command command = getCommand(request);
+		command.process();
+	}
+	
+	private Command getCommand(String request) {
+		Class commandClass = getCommandClass(request);
+		try {
+			return (Command) commandClass.newInstance();
+		} catch (Exception e) {
+			throw new ApplicationException(e);
+		}
+	}
+	
+	private Class getCommandClass(String request) {
+		Class result;
+		try {
+			result = Class.forName("com.iluwatar." + request + "Command");
+		} catch (ClassNotFoundException e) {
+			result = UnknownCommand.class;
+		}
+		return result;
+	}
+}

front-controller/src/main/java/com/iluwatar/UnknownCommand.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class UnknownCommand implements Command {
+
+	@Override
+	public void process() {
+		System.out.println("Error 500");
+	}
+}

front-controller/src/main/java/com/iluwatar/View.java

@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public interface View {
+
+	void display();
+}