Read from properties file, add to ArrayList, and randomize skill level

Author: 6nguyen

bin/applicationContext.xml

@@ -13,6 +13,9 @@
 	<!-- Load values.properties file for properties injections using java annotations -->
 	<context:property-placeholder location="classpath:values.properties" />
 
+	<!-- Load skillLevel.properties file for properties injection into CurrentSkillLevel -->
+	<context:property-placeholder location="classpath:skillLevel.properties" />
+	
 </beans>
 
 

bin/com/gnguyen92/springdemoannotations/CurrentSkillLevel.class

@@ -0,0 +1,11 @@
+You're just about the worse player I've ever seen.  GET OFF MY FIELD!
+You have two left feet or something?  Get outta here kid.
+A real butterfingers here. Ha! Why don't you join the chess club instead.
+Not born with much talent are you?  Put in the practice and you might get somewhere.
+I guess sports isn't really for you...but you can stay.
+You're not bad... Not good, but not bad.
+An average player like you will mostly be benched with a few opportunities to play.
+You've got some talent in you. All you need is a nice polish and you'll be good.
+With your skill level, you'll make varsity in no time.
+Mama mia. A kid with your athleticism doesn't come around often. You're the new captain.
+HOLY COW! You're a real prodigy kid. Let's get you signed already!

bin/com/gnguyen92/springdemoannotations/FileRandomSkill.class

@@ -13,6 +13,9 @@
 	<!-- Load values.properties file for properties injections using java annotations -->
 	<context:property-placeholder location="classpath:values.properties" />
 
+	<!-- Load skillLevel.properties file for properties injection into CurrentSkillLevel -->
+	<context:property-placeholder location="classpath:skillLevel.properties" />
+	
 </beans>
 
 

bin/com/gnguyen92/springdemoannotations/WrestlingCoach.class

@@ -82,6 +82,16 @@ public static void main(String[] args) {
  *  		this.interfaceObject = interfaceObject;
  *  	}
  *  
+ *  ------------- values.properties Field Injections -------------------------------------
+ *  
+ *  1)  Create a properties file in src folder -> file contains key=value pairs
+ *  
+ *  2)  Load the properties file into xml config file
+ *  	<context:property-placeholder location="classpath:fileName.properties" />
+ *  
+ *  3)  In SportCoach class, declare instance variables
+ *  
+ *  4)  Above variable declaration, add @Value("${keyName}")
  *  
  *  
  */

bin/skillLevel.properties

@@ -6,12 +6,13 @@
 @Component
 public class CurrentSkillLevel implements SkillLevel {
 
+	
 	String[] skillLevels = {
 			"God you're awful!  You should consider spending your time elsewhere...",
 			"You're getting pretty good, at least intermediate level I'd say.",
 			"Wow. You've improved so much! You're like a prodigy!"
 	};
-	
+		
 	public String getSkillLevel() {
 		int randIndex = (int)Math.floor(Math.random() * skillLevels.length);
 

src/applicationContext.xml

@@ -0,0 +1,54 @@
+package com.gnguyen92.springdemoannotations;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.springframework.stereotype.Component;
+
+@Component
+public class FileRandomSkill implements SkillLevel {
+
+	private String filepath = "C:/Users/gnguy/Desktop/Java/spring-demo-annotations/src/skillLevel.properties";
+	private List<String> skillLevels;
+	
+	// create default constructor to read file and store values into array
+	public FileRandomSkill() throws IOException {
+		File file = new File(filepath);
+		
+		System.out.println(">> Reading from file " + filepath);
+		System.out.println(">> File exists: " + file.exists());
+		
+		// initialize the array
+		skillLevels = new ArrayList<String>();
+		
+		// read from the file
+		try {
+			BufferedReader br = new BufferedReader(
+					new FileReader(file));
+			
+			// Add each line into skillLevels[]
+			String temp;
+			while((temp = br.readLine()) != null) {
+				skillLevels.add(temp);
+			}
+			
+			br.close();
+			
+		} catch (FileNotFoundException e) {
+			e.printStackTrace();
+		}
+	}
+	
+	// ArrayList length method:  arrayList.size()
+	// ArrayList element at index: arrayList.get(i)
+	public String getSkillLevel() {
+		int randomIndex = (int)Math.floor(Math.random() * skillLevels.size());
+		return skillLevels.get(randomIndex);
+	}
+
+}

src/com/gnguyen92/springdemoannotations/AnnotationDemo.java

@@ -25,7 +25,7 @@ public WrestlingCoach(){
 	// @Autowire the SkillLevel dependency
 	// @Qualifier specifies which SkillLevel interface implementation this class will use
 	@Autowired
-	@Qualifier("proSkillLevel")
+	@Qualifier("fileRandomSkill")
 	public void setSkillLevel(SkillLevel currentSkill){
 		System.out.println(">> WrestlingCoach: inside @Autowired @Qualifier Setter setSkillLevel()");
 		System.out.println("Name: " + name);

src/com/gnguyen92/springdemoannotations/CurrentSkillLevel.java

@@ -0,0 +1,11 @@
+You're just about the worse player I've ever seen.  GET OFF MY FIELD!
+You have two left feet or something?  Get outta here kid.
+A real butterfingers here. Ha! Why don't you join the chess club instead.
+Not born with much talent are you?  Put in the practice and you might get somewhere.
+I guess sports isn't really for you...but you can stay.
+You're not bad... Not good, but not bad.
+An average player like you will mostly be benched with a few opportunities to play.
+You've got some talent in you. All you need is a nice polish and you'll be good.
+With your skill level, you'll make varsity in no time.
+Mama mia. A kid with your athleticism doesn't come around often. You're the new captain.
+HOLY COW! You're a real prodigy kid. Let's get you signed already!