Provides the interface the ability to load up songs from the file system.

interface/src/main/java/edu/regis/universeplayer/data/SimpleSongProvider.java

@@ -16,7 +16,7 @@ import java.util.stream.Collectors;
  * @author William Hubbard
  * @version 0.1
  */
-public class SimpleSongProvider implements SongProvider
+public class SimpleSongProvider implements SongProvider<Song>
 {
     private ArrayList<Album> albums;
     private ArrayList<Song> songs;
@@ -175,4 +175,34 @@ public class SimpleSongProvider implements SongProvider
         return this.albums.stream().filter(album -> album.year == year)
                           .sorted().collect(Collectors.toList());
     }
+    
+    @Override
+    public int getUpdateProgress()
+    {
+        return 0;
+    }
+    
+    @Override
+    public int getTotalUpdateSongs()
+    {
+        return -1;
+    }
+    
+    @Override
+    public String getUpdateText()
+    {
+        return null;
+    }
+    
+    @Override
+    public void addUpdateListener(UpdateListener listener)
+    {
+        // We don't need update listeners here
+    }
+    
+    @Override
+    public void removeUpdateListener(UpdateListener listener)
+    {
+        // We don't need update listeners here
+    }
 }