/*
    *
    * The DbUnit Database Testing Framework
    * Copyright (C)2002-2004, DbUnit.org
    *
    * This library is free software; you can redistribute it and/or
    * modify it under the terms of the GNU Lesser General Public
    * License as published by the Free Software Foundation; either
    * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   *
   */
  package org.dbunit.dataset.datatype;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import org.dbunit.dataset.ITable;
  
  import java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.Types;
  
  /**
   * @author Manuel Laflamme
   * @author Last changed by: $Author: gommma $
   * @version $Revision: 1023 $ $Date: 2009-08-03 16:08:12 -0500 (Mon, 03 Aug 2009) $
   */
  public class BooleanDataType extends AbstractDataType
  {
  
      /**
       * Logger for this class
       */
      private static final Logger logger = LoggerFactory.getLogger(BooleanDataType.class);
  
      BooleanDataType()
      {
          this("BOOLEAN", Types.BOOLEAN);
      }
  
      /**
       * @param name
       * @param sqlType
       * @since 2.3
       */
      BooleanDataType(String name, int sqlType)
      {
          super(name, sqlType, Boolean.class, false);
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // DataType class
  
      public Object typeCast(Object value) throws TypeCastException
      {
          logger.debug("typeCast(value={}) - start", value);
  
          if (value == null || value == ITable.NO_VALUE)
          {
              return null;
          }
  
          if (value instanceof Boolean)
          {
              return value;
          }
  
          if (value instanceof Number)
          {
              Number number = (Number)value;
              if (number.intValue() == 0)
                  return Boolean.FALSE;
              else
                  return Boolean.TRUE;
          }
  
          if (value instanceof String)
          {
              String string = (String)value;
  
              if (string.equalsIgnoreCase("true") || string.equalsIgnoreCase("false"))
              {
                  return Boolean.valueOf(string);
              }
              else
              {
                  return typeCast(DataType.INTEGER.typeCast(string));
              }
          }
 
         throw new TypeCastException(value, this);
     }
 
 
     protected int compareNonNulls(Object value1, Object value2) throws TypeCastException
     {
         logger.debug("compareNonNulls(value1={}, value2={}) - start", value1, value2);
         
         Boolean value1bool = (Boolean)value1;
         Boolean value2bool = (Boolean)value2;
         
         if (value1bool.equals(value2bool))
         {
             return 0;
         }
 
         if (value1bool.equals(Boolean.FALSE))
         {
             return -1;
         }
 
         return 1;
     }
 
     public Object getSqlValue(int column, ResultSet resultSet)
             throws SQLException, TypeCastException
     {
     	if(logger.isDebugEnabled())
     		logger.debug("getSqlValue(column={}, resultSet={}) - start", new Integer(column), resultSet);
 
         boolean value = resultSet.getBoolean(column);
         if (resultSet.wasNull())
         {
             return null;
         }
         return value ? Boolean.TRUE : Boolean.FALSE;
     }
 
     public void setSqlValue(Object value, int column, PreparedStatement statement)
             throws SQLException, TypeCastException
     {
     	if(logger.isDebugEnabled())
     		logger.debug("setSqlValue(value={}, column={}, statement={}) - start",
         		new Object[]{value, new Integer(column), statement} );
 
     	Boolean castValue = (Boolean)typeCast(value);
     	if(castValue==null)
     	{
     	    statement.setNull(column, Types.BOOLEAN);
     	}
     	else
     	{
     	    statement.setBoolean(column, castValue.booleanValue());
     	}
     }
 
 }