FloatDataType.java

  1. /*
  2.  *
  3.  * The DbUnit Database Testing Framework
  4.  * Copyright (C)2002-2004, DbUnit.org
  5.  *
  6.  * This library is free software; you can redistribute it and/or
  7.  * modify it under the terms of the GNU Lesser General Public
  8.  * License as published by the Free Software Foundation; either
  9.  * version 2.1 of the License, or (at your option) any later version.
  10.  *
  11.  * This library is distributed in the hope that it will be useful,
  12.  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14.  * Lesser General Public License for more details.
  15.  *
  16.  * You should have received a copy of the GNU Lesser General Public
  17.  * License along with this library; if not, write to the Free Software
  18.  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19.  *
  20.  */

  21. package org.dbunit.dataset.datatype;

  22. import java.math.BigDecimal;
  23. import java.sql.PreparedStatement;
  24. import java.sql.ResultSet;
  25. import java.sql.SQLException;
  26. import java.sql.Types;

  27. import org.dbunit.dataset.ITable;
  28. import org.slf4j.Logger;
  29. import org.slf4j.LoggerFactory;

  30. /**
  31.  * @author Manuel Laflamme
  32.  * @version $Revision$
  33.  */
  34. public class FloatDataType extends AbstractDataType
  35. {

  36.     /**
  37.      * Logger for this class
  38.      */
  39.     private static final Logger logger =
  40.             LoggerFactory.getLogger(FloatDataType.class);

  41.     FloatDataType()
  42.     {
  43.         super("REAL", Types.REAL, Float.class, true);
  44.     }

  45.     ////////////////////////////////////////////////////////////////////////////
  46.     // DataType class

  47.     @Override
  48.     public Object typeCast(final Object value) throws TypeCastException
  49.     {
  50.         logger.debug("typeCast(value={}) - start", value);

  51.         if (value == null || value == ITable.NO_VALUE)
  52.         {
  53.             return null;
  54.         }

  55.         if (value instanceof Number)
  56.         {
  57.             return ((Number) value).floatValue();
  58.         }

  59.         try
  60.         {
  61.             return typeCast(new BigDecimal(value.toString()));
  62.         } catch (final java.lang.NumberFormatException e)
  63.         {
  64.             throw new TypeCastException(value, this, e);
  65.         }
  66.     }

  67.     @Override
  68.     public Object getSqlValue(final int column, final ResultSet resultSet)
  69.             throws SQLException, TypeCastException
  70.     {
  71.         logger.debug("getSqlValue(column={}, resultSet={}) - start", column,
  72.                 resultSet);
  73.         final float rawValue = resultSet.getFloat(column);
  74.         final Float value = resultSet.wasNull() ? null : rawValue;
  75.         logger.debug("getSqlValue: column={}, value={}", column, value);
  76.         return value;
  77.     }

  78.     @Override
  79.     public void setSqlValue(final Object value, final int column,
  80.             final PreparedStatement statement)
  81.             throws SQLException, TypeCastException
  82.     {
  83.         logger.debug("setSqlValue(value={}, column={}, statement={}) - start",
  84.                 value, column, statement);

  85.         statement.setFloat(column, ((Number) typeCast(value)).floatValue());
  86.     }
  87. }