Delay uuidconversion for 10s and show warning.

UUID conversion should now better handle offline conversion.

Essentials/src/com/earth2me/essentials/EssentialsConf.java

@@ -102,6 +102,10 @@ public class EssentialsConf extends YamlConfiguration
 			{
 				convertLegacyFile();
 			}
+			else if (altFileExists())
+			{
+				convertAltFile();
+			}
 			else if (templateName != null)
 			{
 				LOGGER.log(Level.INFO, tl("creatingConfigFromTemplate", configFile.toString()));
@@ -194,6 +198,16 @@ public class EssentialsConf extends YamlConfiguration
 		LOGGER.log(Level.SEVERE, "Unable to import legacy config file.");
 	}
 	
+	public boolean altFileExists()
+	{
+		return false;
+	}
+	
+	public void convertAltFile()
+	{
+		LOGGER.log(Level.SEVERE, "Unable to import alt config file.");
+	}
+
 	private void createFromTemplate()
 	{
 		InputStream istr = null;

Essentials/src/com/earth2me/essentials/EssentialsUpgrade.java

@@ -501,6 +501,58 @@ public class EssentialsUpgrade
 			return;
 		}
 		
+		final File userdir = new File(ess.getDataFolder(), "userdata");
+		if (!userdir.exists())
+		{
+			return;
+		}
+		
+		int countFiles = 0;
+		int countReqFiles = 0;
+		for (String string : userdir.list())
+		{
+			if (!string.endsWith(".yml") || string.length() < 5)
+			{
+				continue;
+			}
+			
+			countFiles++;
+			
+			final String name = string.substring(0, string.length() - 4);
+			UUID uuid = null;
+			
+			try
+			{
+				uuid = UUID.fromString(name);
+			}
+			catch (IllegalArgumentException ex)
+			{
+				countReqFiles++;
+			}
+			
+			if (countFiles > 100)
+			{
+				break;
+			}			
+		}
+		
+		if (countReqFiles < 1)
+		{
+			return;
+		}
+				
+		ess.getLogger().info("#### Starting Essentials UUID userdata conversion in a few seconds. ####");
+		ess.getLogger().info("We recommend you take a backup of your server before upgrading from the old username system.");
+		
+		try
+		{
+			Thread.sleep(10000);
+		}
+		catch (InterruptedException ex)
+		{
+			// NOOP
+		}
+
 		uuidFileConvert(ess);
 
 		doneFile.setProperty("uuidFileChange", true);
@@ -598,7 +650,7 @@ public class EssentialsUpgrade
 		}
 		ess.getUserMap().getUUIDMap().forceWriteUUIDMap();
         
-		ess.getLogger().info("Completed Essentials UUID userdata conversion.  Attempted to convert " + countFiles + " users.");
+		ess.getLogger().info("Converted " + countFiles + "/" + countFiles + ".  Conversion complete.");
 		ess.getLogger().info("Converted via cache: " + countEssCache + " :: Converted via lookup: " + countBukkit + " :: Failed to convert: " + countFails);
 		ess.getLogger().info("To rerun the conversion type /essentials uuidconvert");
 	}

Essentials/src/com/earth2me/essentials/EssentialsUserConf.java

@@ -1,8 +1,10 @@
 package com.earth2me.essentials;
 
+import com.google.common.base.Charsets;
 import com.google.common.io.Files;
 import java.io.File;
 import java.io.IOException;
+import java.util.Locale;
 import java.util.UUID;
 import java.util.logging.Level;
 import org.bukkit.Bukkit;
@@ -23,14 +25,14 @@ public class EssentialsUserConf extends EssentialsConf
 	@Override
 	public boolean legacyFileExists()
 	{
-		File file = new File(configFile.getParentFile(), username + ".yml");
+		final File file = new File(configFile.getParentFile(), username + ".yml");
 		return file.exists();
 	}
 
 	@Override
 	public void convertLegacyFile()
 	{
-		File file = new File(configFile.getParentFile(), username + ".yml");
+		final File file = new File(configFile.getParentFile(), username + ".yml");
 		try
 		{
 			Files.move(file, new File(configFile.getParentFile(), uuid + ".yml"));
@@ -42,4 +44,33 @@ public class EssentialsUserConf extends EssentialsConf
 
 		setProperty("lastAccountName", username);
 	}
+
+	private File getAltFile()
+	{
+		final UUID fn = UUID.nameUUIDFromBytes(("OfflinePlayer:" + username.toLowerCase(Locale.ENGLISH)).getBytes(Charsets.UTF_8));
+		return new File(configFile.getParentFile(), fn.toString() + ".yml");
+	}
+
+	@Override
+	public boolean altFileExists()
+	{
+		if (username.equals(username.toLowerCase()))
+		{
+			return false;
+		}
+		return getAltFile().exists();
+	}
+
+	@Override
+	public void convertAltFile()
+	{
+		try
+		{
+			Files.move(getAltFile(), new File(configFile.getParentFile(), uuid + ".yml"));
+		}
+		catch (IOException ex)
+		{
+			Bukkit.getLogger().log(Level.WARNING, "Failed to migrate user: " + username, ex);
+		}
+	}
 }

Essentials/src/com/earth2me/essentials/commands/Commandessentials.java

@@ -8,6 +8,7 @@ import com.earth2me.essentials.UserMap;
 import com.earth2me.essentials.metrics.Metrics;
 import com.earth2me.essentials.utils.DateUtil;
 import com.earth2me.essentials.utils.NumberUtil;
+import com.google.common.base.Charsets;
 import java.io.IOException;
 import java.util.HashMap;
 import java.util.Map;
@@ -63,6 +64,10 @@ public class Commandessentials extends EssentialsCommand
 		{
 			run_uuidconvert(server, sender, commandLabel, args);
 		}
+		else if (args[0].equalsIgnoreCase("uuidtest"))
+		{
+			run_uuidtest(server, sender, commandLabel, args);
+		}
 		else
 		{
 			run_reload(server, sender, commandLabel, args);
@@ -325,4 +330,32 @@ public class Commandessentials extends EssentialsCommand
 		EssentialsUpgrade.uuidFileConvert(ess);
 		sender.sendMessage("UUID conversion complete, check your server log for more information.");
 	}
+	
+	private void run_uuidtest(final Server server, final CommandSource sender, final String commandLabel, final String[] args) throws Exception
+	{
+		if (args.length < 2)
+		{
+			throw new Exception("/<command> uuidtest <name>");
+		}
+		String name = args[1];
+		sender.sendMessage("Looking up UUID for " + name);
+		
+		for (Player player : server.getOnlinePlayers())
+		{
+			if (player.getName().equalsIgnoreCase(name))
+			{
+				sender.sendMessage("Online player: " + player.getUniqueId().toString());
+			}
+		}
+		
+		org.bukkit.OfflinePlayer player = ess.getServer().getOfflinePlayer(name);
+		UUID bukkituuid = player.getUniqueId();
+		sender.sendMessage("Bukkit Lookup: " + bukkituuid.toString());
+		
+		UUID npcuuid = UUID.nameUUIDFromBytes(("NPC:" + name).getBytes(Charsets.UTF_8));		
+		sender.sendMessage("NPC UUID: " + npcuuid.toString());
+		
+		UUID offlineuuid = UUID.nameUUIDFromBytes(("OfflinePlayer:" + name).getBytes(Charsets.UTF_8));
+		sender.sendMessage("Offline Mode UUID: " + offlineuuid.toString());		
+	}
 }

Essentials/src/com/earth2me/essentials/commands/Commandseen.java

@@ -54,7 +54,8 @@ public class Commandseen extends EssentialsCommand
 					seenIP(server, sender, args[0]);
 					return;
 				}
-				else if (FormatUtil.validIP(args[0]) && (server.getIPBans().contains(args[0]))) {
+				else if (FormatUtil.validIP(args[0]) && (server.getIPBans().contains(args[0])))
+				{
 					sender.sendMessage(tl("isIpBanned", args[0]));
 					return;
 				}
@@ -73,6 +74,11 @@ public class Commandseen extends EssentialsCommand
 		user.setDisplayNick();
 		sender.sendMessage(tl("seenOnline", user.getDisplayName(), DateUtil.formatDateDiff(user.getLastLogin())));
 
+		if (ess.getSettings().isDebug())
+		{
+			ess.getLogger().info("UUID: " + user.getBase().getUniqueId().toString());
+		}
+
 		List<String> history = ess.getUserMap().getUserHistory(user.getBase().getUniqueId());
 		if (history != null && history.size() > 1)
 		{
@@ -118,6 +124,11 @@ public class Commandseen extends EssentialsCommand
 			sender.sendMessage(tl("userUnknown", user.getName()));
 		}
 
+		if (ess.getSettings().isDebug())
+		{
+			ess.getLogger().info("UUID: " + user.getBase().getUniqueId().toString());
+		}
+
 		List<String> history = ess.getUserMap().getUserHistory(user.getBase().getUniqueId());
 		if (history != null && history.size() > 1)
 		{