https://github.com/craftinc/craftinc-borderprotection/issues/1 done

(Ability to disable border definitions per world)
some bug fixes

src/main/java/de/craftinc/borderprotection/Border.java

@@ -4,20 +4,29 @@ import org.bukkit.Location;
 import org.bukkit.World;
 import org.bukkit.configuration.file.FileConfiguration;
 import org.bukkit.configuration.file.YamlConfiguration;
+import org.bukkit.configuration.serialization.ConfigurationSerializable;
 
 import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.Map;
 
-public class Border
+public class Border implements ConfigurationSerializable
 {
-    private static final String dataFileName = "borders.json";
+    private static final String dataFileName = "borders.yml";
+
+
+    private Boolean isActive;
+    private static String isActiveKey = "enabled";
 
     private Location rectPoint1;
-    private Location rectPoint2;
-
     private static String rectPoint1Name = "p1";
+
+    private Location rectPoint2;
     private static String rectPoint2Name = "p2";
+
+
     private static String rectBordersKey = "rectBorders";
 
     private static final HashMap<World, Border> borders = new HashMap<World, Border>();
@@ -40,7 +49,12 @@ public class Border
         return rectPoint2;
     }
 
-    @SuppressWarnings("unchecked")
+    public Boolean isActive()
+    {
+        return isActive;
+    }
+
+    @SuppressWarnings("unchecked unused")
     public Border( Map<String, Object> map )
     {
         try
@@ -48,6 +62,8 @@ public class Border
             rectPoint1 = LocationSerializer.deserializeLocation((Map<String, Object>) map.get(rectPoint1Name));
             rectPoint2 = LocationSerializer.deserializeLocation((Map<String, Object>) map.get(rectPoint2Name));
 
+            isActive = (Boolean) map.get(isActiveKey);
+
             if ( rectPoint1.getWorld().equals(rectPoint2.getWorld()) )
             {
                 borders.put(rectPoint1.getWorld(), this);
@@ -67,6 +83,10 @@ public class Border
     {
         rectPoint1 = p1;
         rectPoint2 = p2;
+
+        // new border is active by default
+        isActive = true;
+
         if ( rectPoint1.getWorld().equals(rectPoint2.getWorld()) )
         {
             borders.put(rectPoint1.getWorld(), this);
@@ -78,11 +98,15 @@ public class Border
     }
 
 
+    @SuppressWarnings("unused")
     public Map<String, Object> serialize()
     {
-        HashMap<String, Object> map = new HashMap<String, Object>();
+        Map<String, Object> map = new HashMap<String, Object>();
         map.put(rectPoint1Name, LocationSerializer.serializeLocation(rectPoint1));
         map.put(rectPoint2Name, LocationSerializer.serializeLocation(rectPoint2));
+        map.put(isActiveKey, isActive);
+
+        System.out.println(map);
 
         return map;
     }
@@ -92,13 +116,24 @@ public class Border
         bordersFileConf.getList(rectBordersKey);
     }
 
-    public static void saveBorders()
+    public static void saveBorders() throws IOException
     {
-        bordersFileConf.set(rectBordersKey, borders.values());
+        bordersFileConf.set(rectBordersKey, new ArrayList<Object>(borders.values()));
+        bordersFileConf.save(bordersFile);
     }
 
     public String toString()
     {
         return rectPoint1.getX() + "," + rectPoint1.getZ() + " " + rectPoint2.getX() + "," + rectPoint2.getZ();
     }
+
+    public void enable()
+    {
+        isActive = true;
+    }
+
+    public void disable()
+    {
+        isActive = false;
+    }
 }

src/main/java/de/craftinc/borderprotection/Commands.java

@@ -22,6 +22,8 @@ import org.bukkit.command.CommandExecutor;
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;
 
+import java.io.IOException;
+
 public class Commands implements CommandExecutor
 {
     private BorderManager borderManager;
@@ -54,22 +56,25 @@ public class Commands implements CommandExecutor
             // set
             if ( ( args.length == 2 || args.length == 3 ) && args[0].equalsIgnoreCase("set") )
             {
-                if ( ! sender.hasPermission("craftinc.borderprotection.set") )
+                if ( !sender.hasPermission("craftinc.borderprotection.set") )
                 {
                     sender.sendMessage(Messages.noPermissionSet);
                     return false;
                 }
+                // set <distance>
                 if ( args.length == 2 )
                 {
                     try
                     {
                         borderManager.setBorder(( (Player) sender ).getWorld(), Double.parseDouble(args[1]));
+                        sender.sendMessage(Messages.borderCreationSuccessful);
                     }
                     catch ( Exception e )
                     {
                         sender.sendMessage(e.getMessage());
                     }
                 }
+                // set <point1> <point2>
                 else
                 {
                     try
@@ -83,7 +88,14 @@ public class Commands implements CommandExecutor
                 }
 
                 // save the new border
-                Border.saveBorders();
+                try
+                {
+                    Border.saveBorders();
+                }
+                catch ( IOException e )
+                {
+                    sender.sendMessage(Messages.borderSaveException);
+                }
                 return true;
             }
 
@@ -93,7 +105,7 @@ public class Commands implements CommandExecutor
                 World world = ( (Player) sender ).getWorld();
 
                 // exit and send the player a message if no border is set
-                if ( ! Border.getBorders().containsKey(world) )
+                if ( !Border.getBorders().containsKey(world) )
                 {
                     sender.sendMessage(Messages.borderInfoNoBorderSet);
                     return true;
@@ -104,7 +116,33 @@ public class Commands implements CommandExecutor
                 sender.sendMessage(Messages.borderInfo(world.getName(), border.toString()));
                 return true;
             }
+
+            // on
+            if ( args.length == 1 && ( args[0].equalsIgnoreCase("on") || args[0].equalsIgnoreCase("off") ) )
+            {
+                World world = ( (Player) sender ).getWorld();
+                if (args[0].equalsIgnoreCase("on")) {
+                    Border.getBorders().get(world).enable();
+                    sender.sendMessage(Messages.borderEnabled);
+                } else {
+                    Border.getBorders().get(world).disable();
+                    sender.sendMessage(Messages.borderDisabled);
+                }
+
+                // save the new border
+                try
+                {
+                    Border.saveBorders();
+                }
+                catch ( IOException e )
+                {
+                    sender.sendMessage(Messages.borderEnableDisableException);
+                }
+                return true;
+            }
         }
+
+        sender.sendMessage(Messages.helpGeneral);
         return false;
     }
 }

src/main/java/de/craftinc/borderprotection/Messages.java

@@ -73,6 +73,11 @@ public class Messages
             makeCmd("set", "Border rectangle is defined by the two points. A point is specified as: x,z",
                     "<point1>", "<point2>");
 
+    public static String borderCreationSuccessful
+            = ChatColor.YELLOW + "New border was set " +
+              ChatColor.GREEN + "successfully" +
+              ChatColor.YELLOW + "!";
+
     public static String commandIssuedByNonPlayer
             = ChatColor.RED + "Only a player can use CraftInc BorderProtection commands!";
 
@@ -90,4 +95,16 @@ public class Messages
 
     public static String noPermissionSet =
             ChatColor.RED + "Sorry, you don't have permission to set the border.";
+
+    public static String borderEnabled =
+            ChatColor.YELLOW + "Border enabled.";
+
+    public static String borderDisabled =
+            ChatColor.YELLOW + "Border disabled.";
+
+    public static String borderSaveException =
+            ChatColor.RED + "Error: Could not save border on server. After the next reload this border will be lost!";
+
+    public static String borderEnableDisableException =
+            ChatColor.RED + "Error: Could not save border state on server. After the next reload this border state will be lost!";
 }

src/main/java/de/craftinc/borderprotection/PlayerMoveListener.java

@@ -74,14 +74,21 @@ public class PlayerMoveListener implements Listener
         Location playerLocation = e.getPlayer().getLocation();
 
         // world where the player is in
-        World world= e.getPlayer().getWorld();
+        World world = e.getPlayer().getWorld();
 
         // border of this world
         Border border = Border.getBorders().get(world);
 
         // do nothing if there are no borders for this specific world
         if ( border == null )
+        {
             return;
+        }
+
+        if ( !border.isActive() )
+        {
+            return;
+        }
 
         // change x or z. default: do not change
         Double[] newXZ;

src/main/java/de/craftinc/borderprotection/PlayerTeleportListener.java

@@ -62,6 +62,11 @@ public class PlayerTeleportListener implements Listener
             return;
         }
 
+        if ( !border.isActive() )
+        {
+            return;
+        }
+
         // change x or z. default: do not change
         Double[] newXZ;
 

src/main/java/de/craftinc/borderprotection/Plugin.java

@@ -16,6 +16,7 @@
 */
 package de.craftinc.borderprotection;
 
+import org.bukkit.configuration.serialization.ConfigurationSerialization;
 import org.bukkit.plugin.PluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 
@@ -28,6 +29,12 @@ public class Plugin extends JavaPlugin
         return cibpPlugin;
     }
 
+    @Override
+    public void onLoad()
+    {
+        ConfigurationSerialization.registerClass(Border.class);
+    }
+
     @Override
     public void onDisable()
     {