trunk/java/com/l2jserver/gameserver/datatables/CharNameTable.java

@@ -0,0 +1,294 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * L2J Server is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.l2jserver.gameserver.datatables;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.concurrent.ConcurrentHashMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import com.l2jserver.Config;
+import com.l2jserver.L2DatabaseFactory;
+import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
+
+/**
+ * This class ...
+ * @version $Revision: 1.3.2.2.2.1 $ $Date: 2005/03/27 15:29:18 $
+ */
+public class CharNameTable
+{
+	private static Logger _log = Logger.getLogger(CharNameTable.class.getName());
+	
+	private final Map<Integer, String> _chars = new ConcurrentHashMap<>();
+	private final Map<Integer, Integer> _accessLevels = new ConcurrentHashMap<>();
+	
+	protected CharNameTable()
+	{
+		if (Config.CACHE_CHAR_NAMES)
+		{
+			loadAll();
+		}
+	}
+	
+	public final void addName(L2PcInstance player)
+	{
+		if (player != null)
+		{
+			addName(player.getObjectId(), player.getName());
+			_accessLevels.put(player.getObjectId(), player.getAccessLevel().getLevel());
+		}
+	}
+	
+	private final void addName(int objectId, String name)
+	{
+		if (name != null)
+		{
+			if (!name.equals(_chars.get(objectId)))
+			{
+				_chars.put(objectId, name);
+			}
+		}
+	}
+	
+	public final void removeName(int objId)
+	{
+		_chars.remove(objId);
+		_accessLevels.remove(objId);
+	}
+	
+	public final int getIdByName(String name)
+	{
+		if ((name == null) || name.isEmpty())
+		{
+			return -1;
+		}
+		
+		for (Entry<Integer, String> entry : _chars.entrySet())
+		{
+			if (entry.getValue().equalsIgnoreCase(name))
+			{
+				return entry.getKey();
+			}
+		}
+		
+		if (Config.CACHE_CHAR_NAMES)
+		{
+			return -1;
+		}
+		
+		int id = -1;
+		int accessLevel = 0;
+		
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT charId,accesslevel FROM characters WHERE char_name=?"))
+		{
+			ps.setString(1, name);
+			try (ResultSet rs = ps.executeQuery())
+			{
+				while (rs.next())
+				{
+					id = rs.getInt(1);
+					accessLevel = rs.getInt(2);
+				}
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing char name: " + e.getMessage(), e);
+		}
+		
+		if (id > 0)
+		{
+			_chars.put(id, name);
+			_accessLevels.put(id, accessLevel);
+			return id;
+		}
+		
+		return -1; // not found
+	}
+	
+	public final String getNameById(int id)
+	{
+		if (id <= 0)
+		{
+			return null;
+		}
+		
+		String name = _chars.get(id);
+		if (name != null)
+		{
+			return name;
+		}
+		
+		if (Config.CACHE_CHAR_NAMES)
+		{
+			return null;
+		}
+		
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT char_name,accesslevel FROM characters WHERE charId=?"))
+		{
+			ps.setInt(1, id);
+			try (ResultSet rset = ps.executeQuery())
+			{
+				if (rset.next())
+				{
+					name = rset.getString(1);
+					_chars.put(id, name);
+					_accessLevels.put(id, rset.getInt(2));
+					return name;
+				}
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing char id: " + e.getMessage(), e);
+		}
+		
+		return null; // not found
+	}
+	
+	public final int getAccessLevelById(int objectId)
+	{
+		if (getNameById(objectId) != null)
+		{
+			return _accessLevels.get(objectId);
+		}
+		
+		return 0;
+	}
+	
+	public synchronized boolean doesCharNameExist(String name)
+	{
+		boolean result = true;
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT account_name FROM characters WHERE char_name=?"))
+		{
+			ps.setString(1, name);
+			try (ResultSet rs = ps.executeQuery())
+			{
+				result = rs.next();
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing charname: " + e.getMessage(), e);
+		}
+		return result;
+	}
+	
+	public int getAccountCharacterCount(String account)
+	{
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT COUNT(char_name) FROM characters WHERE account_name=?"))
+		{
+			ps.setString(1, account);
+			try (ResultSet rset = ps.executeQuery())
+			{
+				while (rset.next())
+				{
+					return rset.getInt(1);
+				}
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing char count: " + e.getMessage(), e);
+		}
+		return 0;
+	}
+	
+	public int getLevelById(int objectId)
+	{
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT level FROM characters WHERE charId = ?"))
+		{
+			ps.setInt(1, objectId);
+			try (ResultSet rset = ps.executeQuery())
+			{
+				while (rset.next())
+				{
+					return rset.getInt(1);
+				}
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing char count: " + e.getMessage(), e);
+		}
+		return 0;
+	}
+	
+	public int getClassIdById(int objectId)
+	{
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT classid FROM characters WHERE charId = ?"))
+		{
+			ps.setInt(1, objectId);
+			try (ResultSet rset = ps.executeQuery())
+			{
+				while (rset.next())
+				{
+					return rset.getInt(1);
+				}
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing char count: " + e.getMessage(), e);
+		}
+		return 0;
+	}
+	
+	private void loadAll()
+	{
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			Statement s = con.createStatement();
+			ResultSet rs = s.executeQuery("SELECT charId, char_name, accesslevel FROM characters"))
+		{
+			while (rs.next())
+			{
+				final int id = rs.getInt(1);
+				_chars.put(id, rs.getString(2));
+				_accessLevels.put(id, rs.getInt(3));
+			}
+		}
+		catch (SQLException e)
+		{
+			_log.log(Level.WARNING, getClass().getSimpleName() + ": Could not load char name: " + e.getMessage(), e);
+		}
+		_log.info(getClass().getSimpleName() + ": Loaded " + _chars.size() + " char names.");
+	}
+	
+	public static CharNameTable getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final CharNameTable _instance = new CharNameTable();
+	}
+}