From 46b23f322fff5fc3ece1f92f126ac7dd4573aa33 Mon Sep 17 00:00:00 2001
From: Samil Ayoub <ssamil.ayoub@gmail.com>
Date: Wed, 2 Sep 2020 13:46:53 +0100
Subject: [PATCH] Add Simple Factory Pattern implementation

Java source code demonstrate simple factory design pattern
---
 pom.xml                                       |  1 +
 .../java/com/iluwatar/simplefactory/App.java  | 16 ++++++++++
 .../java/com/iluwatar/simplefactory/Car.java  | 10 +++++++
 .../simplefactory/CarSimpleFactory.java       | 29 +++++++++++++++++++
 .../com/iluwatar/simplefactory/Ferrari.java   | 14 +++++++++
 .../java/com/iluwatar/simplefactory/Ford.java | 14 +++++++++
 6 files changed, 84 insertions(+)
 create mode 100644 simple-factory/src/main/java/com/iluwatar/simplefactory/App.java
 create mode 100644 simple-factory/src/main/java/com/iluwatar/simplefactory/Car.java
 create mode 100644 simple-factory/src/main/java/com/iluwatar/simplefactory/CarSimpleFactory.java
 create mode 100644 simple-factory/src/main/java/com/iluwatar/simplefactory/Ferrari.java
 create mode 100644 simple-factory/src/main/java/com/iluwatar/simplefactory/Ford.java

diff --git a/pom.xml b/pom.xml
index 6d779700f..cc59a846a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -195,6 +195,7 @@
         <module>arrange-act-assert</module>
         <module>transaction-script</module>
         <module>filterer</module>
+        <module>simple-factory</module>
     </modules>
 
     <repositories>
diff --git a/simple-factory/src/main/java/com/iluwatar/simplefactory/App.java b/simple-factory/src/main/java/com/iluwatar/simplefactory/App.java
new file mode 100644
index 000000000..898efe6d3
--- /dev/null
+++ b/simple-factory/src/main/java/com/iluwatar/simplefactory/App.java
@@ -0,0 +1,16 @@
+package com.iluwatar.simplefactory;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class App {
+	
+	private static final Logger LOGGER = LoggerFactory.getLogger(App.class);
+
+	public static void main(String[] args) {
+		Car car1 = CarSimpleFactory.getCar(CarSimpleFactory.carTypes.FORD);
+		Car car2 = CarSimpleFactory.getCar(CarSimpleFactory.carTypes.FERRARI);
+		LOGGER.info(car1.getDescription());
+		LOGGER.info(car2.getDescription());
+	}
+}
diff --git a/simple-factory/src/main/java/com/iluwatar/simplefactory/Car.java b/simple-factory/src/main/java/com/iluwatar/simplefactory/Car.java
new file mode 100644
index 000000000..82ff4ebe0
--- /dev/null
+++ b/simple-factory/src/main/java/com/iluwatar/simplefactory/Car.java
@@ -0,0 +1,10 @@
+package com.iluwatar.simplefactory;
+
+/**
+ * Car interface
+ */
+public interface Car {
+
+	public String getDescription();
+
+}
diff --git a/simple-factory/src/main/java/com/iluwatar/simplefactory/CarSimpleFactory.java b/simple-factory/src/main/java/com/iluwatar/simplefactory/CarSimpleFactory.java
new file mode 100644
index 000000000..33dbe7b88
--- /dev/null
+++ b/simple-factory/src/main/java/com/iluwatar/simplefactory/CarSimpleFactory.java
@@ -0,0 +1,29 @@
+package com.iluwatar.simplefactory;
+
+
+/**
+ * Factory of cars
+ */
+public class CarSimpleFactory {
+	
+	/*
+	 * Enumeration for different types of cars
+	 */
+	static enum carTypes {
+		FORD, FERRARI
+	};
+	
+	/*
+	 * Factory method takes as parameter a car type and initiate the appropriate class
+	 */
+	public static Car getCar(carTypes type) {
+		switch (type) {
+		case FORD:
+			return new Ford();
+		case FERRARI:
+			return new Ferrari();
+		default:
+			throw new IllegalArgumentException("Model not supported.");
+		}
+	}
+}
diff --git a/simple-factory/src/main/java/com/iluwatar/simplefactory/Ferrari.java b/simple-factory/src/main/java/com/iluwatar/simplefactory/Ferrari.java
new file mode 100644
index 000000000..f9f1d8492
--- /dev/null
+++ b/simple-factory/src/main/java/com/iluwatar/simplefactory/Ferrari.java
@@ -0,0 +1,14 @@
+package com.iluwatar.simplefactory;
+
+/**
+ * Ferrari implementation
+ */
+public class Ferrari implements Car {
+	
+	static final String DESCRIPTION = "This is Ferrari.";
+	
+	@Override
+	public String getDescription() {
+		return DESCRIPTION;
+	}
+}
diff --git a/simple-factory/src/main/java/com/iluwatar/simplefactory/Ford.java b/simple-factory/src/main/java/com/iluwatar/simplefactory/Ford.java
new file mode 100644
index 000000000..0adf4b66b
--- /dev/null
+++ b/simple-factory/src/main/java/com/iluwatar/simplefactory/Ford.java
@@ -0,0 +1,14 @@
+package com.iluwatar.simplefactory;
+
+/**
+ * Ford implementation
+ */
+public class Ford implements Car {
+
+	static final String DESCRIPTION = "This is Ford.";
+
+	@Override
+	public String getDescription() {
+		return DESCRIPTION;
+	}
+}