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

  29. /**
  30.  * @author Manuel Laflamme
  31.  * @version $Revision$
  32.  * @since Feb 17, 2002
  33.  */
  34. public class NumberDataType extends AbstractDataType
  35. {
  36.     private static final Logger logger =
  37.             LoggerFactory.getLogger(NumberDataType.class);

  38.     private static final Number TRUE = new BigDecimal((double) 1);
  39.     private static final Number FALSE = new BigDecimal((double) 0);

  40.     NumberDataType(final String name, final int sqlType)
  41.     {
  42.         super(name, sqlType, BigDecimal.class, true);
  43.     }

  44.     ////////////////////////////////////////////////////////////////////////////
  45.     // DataType class

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

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

  54.         if (value instanceof BigDecimal)
  55.         {
  56.             return value;
  57.         }

  58.         if (value instanceof Boolean)
  59.         {
  60.             return ((Boolean) value) ? TRUE : FALSE;
  61.         }

  62.         try
  63.         {
  64.             return new BigDecimal(value.toString());
  65.         } catch (final java.lang.NumberFormatException e)
  66.         {
  67.             throw new TypeCastException(value, this, e);
  68.         }
  69.     }

  70.     @Override
  71.     public Object getSqlValue(final int column, final ResultSet resultSet)
  72.             throws SQLException, TypeCastException
  73.     {
  74.         logger.debug("getSqlValue(column={}, resultSet={}) - start", column,
  75.                 resultSet);
  76.         final BigDecimal rawValue = resultSet.getBigDecimal(column);
  77.         final BigDecimal value = resultSet.wasNull() ? null : rawValue;
  78.         logger.debug("getSqlValue: column={}, value={}", column, value);
  79.         return value;
  80.     }

  81.     @Override
  82.     public void setSqlValue(final Object value, final int column,
  83.             final PreparedStatement statement)
  84.             throws SQLException, TypeCastException
  85.     {
  86.         logger.debug("setSqlValue(value={}, column={}, statement={}) - start",
  87.                 value, column, statement);

  88.         statement.setBigDecimal(column, (BigDecimal) typeCast(value));
  89.     }
  90. }