Clear cache if config was updated since previous server start

pom.xml

@@ -4,7 +4,7 @@
 
   <groupId>com.lishid</groupId>
   <artifactId>orebfuscator</artifactId>
-  <version>4.0.1-SNAPSHOT</version>
+  <version>4.0.2-SNAPSHOT</version>
   <packaging>jar</packaging>
 
   <name>Orebfuscator4</name>

src/main/java/com/lishid/orebfuscator/Orebfuscator.java

@@ -16,10 +16,12 @@
 
 package com.lishid.orebfuscator;
 
+import java.io.File;
+import java.io.IOException;
+import java.util.Objects;
 import java.util.logging.Logger;
 
 import org.bukkit.ChatColor;
-import org.bukkit.World;
 import org.bukkit.command.Command;
 import org.bukkit.command.CommandSender;
 import org.bukkit.plugin.PluginManager;
@@ -29,10 +31,10 @@
 import com.lishid.orebfuscator.commands.OrebfuscatorCommandExecutor;
 import com.lishid.orebfuscator.hithack.BlockHitManager;
 import com.lishid.orebfuscator.hook.ProtocolLibHook;
-import com.lishid.orebfuscator.internal.MinecraftInternals;
 import com.lishid.orebfuscator.listeners.OrebfuscatorBlockListener;
 import com.lishid.orebfuscator.listeners.OrebfuscatorEntityListener;
 import com.lishid.orebfuscator.listeners.OrebfuscatorPlayerListener;
+import com.lishid.orebfuscator.utils.FileHelper;
 
 /**
  * Orebfuscator Anti X-RAY
@@ -54,6 +56,9 @@ public void onEnable() {
         instance = this;
         // Load configurations
         OrebfuscatorConfig.load();
+
+        //Make sure cache is cleared if config was changed since last start
+        checkCacheAndConfigSynchronized();
 
         // Orebfuscator events
         pm.registerEvents(new OrebfuscatorPlayerListener(), this);
@@ -65,28 +70,31 @@ public void onEnable() {
             (new ProtocolLibHook()).register(this);
             usePL = true;
         }
-
-        /* NoLagg is deprecated now
-        if (pm.getPlugin("NoLagg") != null && !usePL) {
-            getServer().getScheduler().scheduleSyncRepeatingTask(this, new Runnable() {
-                @Override
-                public void run() {
-                    Orebfuscator.log("WARNING! NoLagg Absolutely NEED ProtocolLib to work with Orebfuscator!");
-                }
-            }, 0, 60 * 1000);// Warn every minute
-        }
-        */
-
-        // Disable spigot's built-in orebfuscator since it has limited functionality
-        try {
-            Class.forName("org.spigotmc.AntiXray");
-            Orebfuscator.log("Spigot found! Automatically disabling built-in AntiXray.");
-            for (World world : getServer().getWorlds()) {
-                MinecraftInternals.tryDisableSpigotAntiXray(world);
-            }
-        } catch (Exception e) {
-            // Spigot not found
-        }
+    }
+
+    private void checkCacheAndConfigSynchronized() {
+    	String configContent = getConfig().saveToString();
+
+    	File cacheFolder = OrebfuscatorConfig.getCacheFolder();
+    	File cacheConfigFile = new File(cacheFolder, "cache_config.yml");
+
+    	try {
+			String cacheConfigContent = FileHelper.readFile(cacheConfigFile);
+
+			if(Objects.equals(configContent, cacheConfigContent)) return;
+
+			Orebfuscator.log("Clear cache.");
+
+			if(cacheFolder.exists()) {
+				FileHelper.delete(cacheFolder);
+			}
+
+			cacheFolder.mkdirs();
+
+			getConfig().save(cacheConfigFile);
+		} catch (IOException e) {
+			e.printStackTrace();
+		}
     }
 
     @Override

src/main/java/com/lishid/orebfuscator/OrebfuscatorConfig.java

@@ -21,6 +21,7 @@
 import java.io.IOException;
 import java.io.InputStream;
 import java.io.InputStreamReader;
+import java.nio.file.Files;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
@@ -547,7 +548,7 @@ private static FileConfiguration getConfig() {
         return Orebfuscator.instance.getConfig();
     }
 
-    public static int clamp(int value, int min, int max) {
+    private static int clamp(int value, int min, int max) {
         if (value < min)
             value = min;
         if (value > max)

src/main/java/com/lishid/orebfuscator/utils/FileHelper.java

@@ -0,0 +1,39 @@
+package com.lishid.orebfuscator.utils;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.FileReader;
+import java.io.IOException;
+
+public class FileHelper {
+    public static String readFile(File file) throws IOException {
+    	if(!file.exists()) return null;
+
+    	StringBuilder text = new StringBuilder("");
+
+		BufferedReader reader = new BufferedReader(new FileReader(file));
+
+		try {
+    		String line;
+
+            while ((line = reader.readLine()) != null) { 
+            	text.append(line);
+            	text.append("\n");
+            }
+		}
+		finally {
+			reader.close();
+		}
+
+		return text.toString();
+    }
+
+    public static void delete(File file) {
+    	if (file.isDirectory()) {
+    		for (File child : file.listFiles())
+    			delete(child);
+    	}
+
+		file.delete();
+    }
+}

src/main/resources/plugin.yml

@@ -1,4 +1,4 @@
-name: {project.name}
+name: ${project.name}
 main: com.lishid.orebfuscator.Orebfuscator
 version: ${project.version}
 author: lishid