actual freya branch

L2J_Server/java/com/l2jserver/util/lib/SqlUtils.java

@@ -0,0 +1,190 @@
+/*
+ * This program 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.
+ * 
+ * This program 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.util.lib;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import com.l2jserver.L2DatabaseFactory;
+
+public class SqlUtils
+{
+	private static Logger _log = Logger.getLogger(SqlUtils.class.getName());
+	
+	private SqlUtils()
+	{
+	}
+	
+	// =========================================================
+	// Property - Public
+	public static SqlUtils getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	// =========================================================
+	// Method - Public
+	public static Integer getIntValue(String resultField, String tableName, String whereClause)
+	{
+		String query = "";
+		Integer res = null;
+		
+		Connection con = null;
+		
+		try
+		{
+			con = L2DatabaseFactory.getInstance().getConnection();
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(new String[]
+			{
+				resultField
+			}, tableName, whereClause, true);
+			
+			PreparedStatement statement = con.prepareStatement(query);
+			ResultSet rset = statement.executeQuery();
+			
+			if (rset.next())
+			{
+				res = rset.getInt(1);
+			}
+			
+			rset.close();
+			statement.close();
+		}
+		catch (Exception e)
+		{
+			_log.log(Level.WARNING, "Error in query '" + query + "':", e);
+		}
+		finally
+		{
+			L2DatabaseFactory.close(con);
+		}
+		
+		return res;
+	}
+	
+	public static Integer[] getIntArray(String resultField, String tableName, String whereClause)
+	{
+		String query = "";
+		Integer[] res = null;
+		
+		Connection con = null;
+		
+		try
+		{
+			con = L2DatabaseFactory.getInstance().getConnection();
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(new String[]
+			{
+				resultField
+			}, tableName, whereClause, false);
+			PreparedStatement statement = con.prepareStatement(query);
+			ResultSet rset = statement.executeQuery();
+			
+			int rows = 0;
+			
+			while (rset.next())
+			{
+				rows++;
+			}
+			
+			if (rows == 0)
+			{
+				return new Integer[0];
+			}
+			
+			res = new Integer[rows - 1];
+			
+			rset.first();
+			
+			int row = 0;
+			while (rset.next())
+			{
+				res[row] = rset.getInt(1);
+			}
+			rset.close();
+			statement.close();
+		}
+		catch (Exception e)
+		{
+			_log.log(Level.WARNING, "mSGI: Error in query '" + query + "':", e);
+		}
+		finally
+		{
+			L2DatabaseFactory.close(con);
+		}
+		
+		return res;
+	}
+	
+	public static Integer[][] get2DIntArray(String[] resultFields, String usedTables, String whereClause)
+	{
+		long start = System.currentTimeMillis();
+		
+		String query = "";
+		
+		Connection con = null;
+		
+		Integer res[][] = null;
+		
+		try
+		{
+			con = L2DatabaseFactory.getInstance().getConnection();
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(resultFields, usedTables, whereClause, false);
+			PreparedStatement statement = con.prepareStatement(query);
+			ResultSet rset = statement.executeQuery();
+			
+			int rows = 0;
+			while (rset.next())
+			{
+				rows++;
+			}
+			
+			res = new Integer[rows - 1][resultFields.length];
+			
+			rset.first();
+			
+			int row = 0;
+			while (rset.next())
+			{
+				for (int i = 0; i < resultFields.length; i++)
+				{
+					res[row][i] = rset.getInt(i + 1);
+				}
+				row++;
+			}
+			rset.close();
+			statement.close();
+		}
+		catch (Exception e)
+		{
+			_log.log(Level.WARNING, "Error in query '" + query + "':", e);
+		}
+		finally
+		{
+			L2DatabaseFactory.close(con);
+		}
+		
+		_log.fine("Get all rows in query '" + query + "' in " + (System.currentTimeMillis() - start) + "ms");
+		return res;
+	}
+	
+	@SuppressWarnings("synthetic-access")
+	private static class SingletonHolder
+	{
+		protected static final SqlUtils _instance = new SqlUtils();
+	}
+}