From c4556561c402f8b336ce5389d14d6d3b0b9fc296 Mon Sep 17 00:00:00 2001
From: Ilkka Seppala <iluwatar@gmail.com>
Date: Sun, 19 Jul 2015 12:44:51 +0300
Subject: [PATCH] #90 Finished the example code

---
 .../src/main/java/com/iluwatar/App.java       |  6 +++-
 .../com/iluwatar/ApplicationException.java    |  8 ++++++
 .../main/java/com/iluwatar/ArcherCommand.java |  9 ++++++
 .../main/java/com/iluwatar/ArcherView.java    |  9 ++++++
 .../java/com/iluwatar/CatapultCommand.java    |  9 ++++++
 .../main/java/com/iluwatar/CatapultView.java  |  9 ++++++
 .../src/main/java/com/iluwatar/Command.java   |  6 ++++
 .../java/com/iluwatar/FrontController.java    | 28 +++++++++++++++++++
 .../java/com/iluwatar/UnknownCommand.java     |  9 ++++++
 .../src/main/java/com/iluwatar/View.java      |  6 ++++
 10 files changed, 98 insertions(+), 1 deletion(-)
 create mode 100644 front-controller/src/main/java/com/iluwatar/ApplicationException.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/ArcherCommand.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/ArcherView.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/CatapultCommand.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/CatapultView.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/Command.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/FrontController.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/UnknownCommand.java
 create mode 100644 front-controller/src/main/java/com/iluwatar/View.java

diff --git a/front-controller/src/main/java/com/iluwatar/App.java b/front-controller/src/main/java/com/iluwatar/App.java
index b95f9d5b2..91948f24c 100644
--- a/front-controller/src/main/java/com/iluwatar/App.java
+++ b/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");
 	}
 }
diff --git a/front-controller/src/main/java/com/iluwatar/ApplicationException.java b/front-controller/src/main/java/com/iluwatar/ApplicationException.java
new file mode 100644
index 000000000..c30c63047
--- /dev/null
+++ b/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);
+    }
+}
diff --git a/front-controller/src/main/java/com/iluwatar/ArcherCommand.java b/front-controller/src/main/java/com/iluwatar/ArcherCommand.java
new file mode 100644
index 000000000..2cdb74221
--- /dev/null
+++ b/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();
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/ArcherView.java b/front-controller/src/main/java/com/iluwatar/ArcherView.java
new file mode 100644
index 000000000..a8333d160
--- /dev/null
+++ b/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");
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/CatapultCommand.java b/front-controller/src/main/java/com/iluwatar/CatapultCommand.java
new file mode 100644
index 000000000..767358dd5
--- /dev/null
+++ b/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();
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/CatapultView.java b/front-controller/src/main/java/com/iluwatar/CatapultView.java
new file mode 100644
index 000000000..131e3a880
--- /dev/null
+++ b/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");
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/Command.java b/front-controller/src/main/java/com/iluwatar/Command.java
new file mode 100644
index 000000000..6e22cd753
--- /dev/null
+++ b/front-controller/src/main/java/com/iluwatar/Command.java
@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public interface Command {
+	
+	void process();
+}
diff --git a/front-controller/src/main/java/com/iluwatar/FrontController.java b/front-controller/src/main/java/com/iluwatar/FrontController.java
new file mode 100644
index 000000000..26001228a
--- /dev/null
+++ b/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;
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/UnknownCommand.java b/front-controller/src/main/java/com/iluwatar/UnknownCommand.java
new file mode 100644
index 000000000..ecdc46e71
--- /dev/null
+++ b/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");
+	}
+}
diff --git a/front-controller/src/main/java/com/iluwatar/View.java b/front-controller/src/main/java/com/iluwatar/View.java
new file mode 100644
index 000000000..7ff7a6888
--- /dev/null
+++ b/front-controller/src/main/java/com/iluwatar/View.java
@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public interface View {
+
+	void display();
+}