/*
    *
    * 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 java.sql.PreparedStatement;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.Types;
  
  import org.dbunit.dataset.ITable;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * @author Manuel Laflamme
   * @author Last changed by: $Author$
   * @version $Revision$ $Date$
   */
  public class BooleanDataType extends AbstractDataType
  {
      private static final Logger logger =
              LoggerFactory.getLogger(BooleanDataType.class);
  
      BooleanDataType()
      {
          this("BOOLEAN", Types.BOOLEAN);
      }
  
      /**
       * @since 2.3
       */
      BooleanDataType(final String name, final int sqlType)
      {
          super(name, sqlType, Boolean.class, false);
      }
  
      ////////////////////////////////////////////////////////////////////////////
      // DataType class
  
      @Override
      public Object typeCast(final 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)
          {
              final Number number = (Number) value;
              if (number.intValue() == 0)
              {
                  return Boolean.FALSE;
              } else
              {
                  return Boolean.TRUE;
              }
          }
  
          if (value instanceof String)
          {
              final String string = (String) value;
  
              if ("true".equalsIgnoreCase(string)
                      || "false".equalsIgnoreCase(string))
              {
                  return Boolean.valueOf(string);
              } else
              {
                  return typeCast(DataType.INTEGER.typeCast(string));
              }
          }
  
          throw new TypeCastException(value, this);
     }
 
     @Override
     protected int compareNonNulls(final Object value1, final Object value2)
             throws TypeCastException
     {
         logger.debug("compareNonNulls(value1={}, value2={}) - start", value1,
                 value2);
 
         final Boolean value1bool = (Boolean) value1;
         final Boolean value2bool = (Boolean) value2;
 
         if (value1bool.equals(value2bool))
         {
             return 0;
         }
 
         if (!value1bool)
         {
             return -1;
         }
 
         return 1;
     }
 
     @Override
     public Object getSqlValue(final int column, final ResultSet resultSet)
             throws SQLException, TypeCastException
     {
         logger.debug("getSqlValue(column={}, resultSet={}) - start", column,
                 resultSet);
         final boolean rawValue = resultSet.getBoolean(column);
         final Boolean value = resultSet.wasNull() ? null : rawValue;
         logger.debug("getSqlValue: column={}, value={}", column, value);
         return value;
     }
 
     @Override
     public void setSqlValue(final Object value, final int column,
             final PreparedStatement statement)
             throws SQLException, TypeCastException
     {
         logger.debug("setSqlValue(value={}, column={}, statement={}) - start",
                 value, column, statement);
 
         final Boolean castValue = (Boolean) typeCast(value);
         if (castValue == null)
         {
             statement.setNull(column, Types.BOOLEAN);
         } else
         {
             statement.setBoolean(column, castValue);
         }
     }
 }