From 5d60a1bc48f471b6c587622e538044358094b582 Mon Sep 17 00:00:00 2001
From: Simon Rigby <rigby@rigbydev.co.uk>
Date: Sat, 12 Feb 2011 01:44:03 +0000
Subject: [PATCH] Adds removeProperty(String path) and getEmptyNode()

---
 .../org/bukkit/util/config/Configuration.java |  9 +++++
 .../bukkit/util/config/ConfigurationNode.java | 33 +++++++++++++++++--
 2 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/src/main/java/org/bukkit/util/config/Configuration.java b/src/main/java/org/bukkit/util/config/Configuration.java
index 0cb63f15..427a94d1 100644
--- a/src/main/java/org/bukkit/util/config/Configuration.java
+++ b/src/main/java/org/bukkit/util/config/Configuration.java
@@ -120,4 +120,13 @@ public class Configuration extends ConfigurationNode {
             throw new ConfigurationException("Root document must be an key-value structure");
         }
     }
+    
+    /**
+     * This method returns an empty ConfigurationNode for using as a 
+     * default in methods that select a node from a node list.
+     * @return
+     */
+    public static ConfigurationNode getEmptyNode() {
+        return new ConfigurationNode(new HashMap<String, Object>());
+    }
 }
diff --git a/src/main/java/org/bukkit/util/config/ConfigurationNode.java b/src/main/java/org/bukkit/util/config/ConfigurationNode.java
index 65fe3fba..f65490c7 100644
--- a/src/main/java/org/bukkit/util/config/ConfigurationNode.java
+++ b/src/main/java/org/bukkit/util/config/ConfigurationNode.java
@@ -13,7 +13,7 @@ import java.util.Map;
 public class ConfigurationNode {
     protected Map<String, Object> root;
     
-    ConfigurationNode(Map<String, Object> root) {
+    protected ConfigurationNode(Map<String, Object> root) {
         this.root = root;
     }
     
@@ -478,4 +478,33 @@ public class ConfigurationNode {
             return null;
         }
     }
-}
+    
+    /**
+     * Remove the property at a location. This will override existing
+     * configuration data to have it conform to key/value mappings.
+     * 
+     * @param path
+     */
+    @SuppressWarnings("unchecked")
+    public void removeProperty(String path) {
+        if (!path.contains(".")) {
+            root.remove(path);
+            return;
+        }
+        
+        String[] parts = path.split("\\.");
+        Map<String, Object> node = root;
+        
+        for (int i = 0; i < parts.length; i++) {
+            Object o = node.get(parts[i]);
+            
+            // Found our target!
+            if (i == parts.length - 1) {
+                node.remove(parts[i]);
+                return;
+            }
+            
+            node = (Map<String, Object>)o;
+        }
+    }
+}
\ No newline at end of file