Chronicle 4 branch.

L2J_Mobius_C4/java/com/l2jmobius/util/SqlUtils.java

@@ -0,0 +1,166 @@
+/*
+ * This file is part of the L2J Mobius project.
+ * 
+ * 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.l2jmobius.util;
+
+import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.util.logging.Logger;
+
+import com.l2jmobius.L2DatabaseFactory;
+
+public class SqlUtils
+{
+	private static Logger _log = Logger.getLogger(SqlUtils.class.getName());
+	
+	// =========================================================
+	// Data Field
+	private static SqlUtils _instance;
+	
+	// =========================================================
+	// Property - Public
+	public static SqlUtils getInstance()
+	{
+		if (_instance == null)
+		{
+			_instance = new SqlUtils();
+		}
+		return _instance;
+	}
+	
+	// =========================================================
+	// Method - Public
+	public static Integer getIntValue(String resultField, String tableName, String whereClause)
+	{
+		Integer res = null;
+		
+		String query = "";
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
+		{
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(new String[]
+			{
+				resultField
+			}, tableName, whereClause, true);
+			try (PreparedStatement statement = con.prepareStatement(query);
+				ResultSet rset = statement.executeQuery())
+			{
+				if (rset.next())
+				{
+					res = rset.getInt(1);
+				}
+			}
+		}
+		catch (final Exception e)
+		{
+			_log.warning("Error in query '" + query + "':" + e);
+			e.printStackTrace();
+		}
+		
+		return res;
+	}
+	
+	public static Integer[] getIntArray(String resultField, String tableName, String whereClause)
+	{
+		Integer[] res = null;
+		
+		String query = "";
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
+		{
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(new String[]
+			{
+				resultField
+			}, tableName, whereClause, false);
+			try (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();
+				
+				final int row = 0;
+				while (rset.next())
+				{
+					res[row] = rset.getInt(1);
+				}
+			}
+		}
+		catch (final Exception e)
+		{
+			_log.warning("mSGI: Error in query '" + query + "':" + e);
+			e.printStackTrace();
+		}
+		
+		return res;
+	}
+	
+	public static Integer[][] get2DIntArray(String[] resultFields, String usedTables, String whereClause)
+	{
+		final long start = System.currentTimeMillis();
+		
+		Integer res[][] = null;
+		
+		String query = "";
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection())
+		{
+			query = L2DatabaseFactory.getInstance().prepQuerySelect(resultFields, usedTables, whereClause, false);
+			try (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++;
+				}
+			}
+		}
+		catch (final Exception e)
+		{
+			_log.warning("Error in query '" + query + "':" + e);
+			e.printStackTrace();
+		}
+		
+		_log.fine("Get all rows in query '" + query + "' in " + (System.currentTimeMillis() - start) + "ms");
+		return res;
+	}
+}