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

@@ -0,0 +1,116 @@
+/*
+ * 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.util.logging.Level;
+import java.util.logging.Logger;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.regex.PatternSyntaxException;
+
+import com.l2jserver.Config;
+import com.l2jserver.L2DatabaseFactory;
+
+public class PetNameTable
+{
+	private static Logger LOGGER = Logger.getLogger(PetNameTable.class.getName());
+	
+	public static PetNameTable getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	public boolean doesPetNameExist(String name, int petNpcId)
+	{
+		boolean result = true;
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			PreparedStatement ps = con.prepareStatement("SELECT name FROM pets p, items i WHERE p.item_obj_id = i.object_id AND name=? AND i.item_id IN (?)"))
+		{
+			ps.setString(1, name);
+			StringBuilder cond = new StringBuilder();
+			if (!cond.toString().isEmpty())
+			{
+				cond.append(", ");
+			}
+			
+			cond.append(PetDataTable.getPetItemsByNpc(petNpcId));
+			ps.setString(2, cond.toString());
+			try (ResultSet rs = ps.executeQuery())
+			{
+				result = rs.next();
+			}
+		}
+		catch (SQLException e)
+		{
+			LOGGER.log(Level.WARNING, getClass().getSimpleName() + ": Could not check existing petname:" + e.getMessage(), e);
+		}
+		return result;
+	}
+	
+	public boolean isValidPetName(String name)
+	{
+		boolean result = true;
+		
+		if (!isAlphaNumeric(name))
+		{
+			return result;
+		}
+		
+		Pattern pattern;
+		try
+		{
+			pattern = Pattern.compile(Config.PET_NAME_TEMPLATE);
+		}
+		catch (PatternSyntaxException e) // case of illegal pattern
+		{
+			LOGGER.warning(getClass().getSimpleName() + ": Pet name pattern of config is wrong!");
+			pattern = Pattern.compile(".*");
+		}
+		Matcher regexp = pattern.matcher(name);
+		if (!regexp.matches())
+		{
+			result = false;
+		}
+		return result;
+	}
+	
+	private boolean isAlphaNumeric(String text)
+	{
+		boolean result = true;
+		char[] chars = text.toCharArray();
+		for (int i = 0; i < chars.length; i++)
+		{
+			if (!Character.isLetterOrDigit(chars[i]))
+			{
+				result = false;
+				break;
+			}
+		}
+		return result;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final PetNameTable _instance = new PetNameTable();
+	}
+}