Package net.sf.jasperreports.engine.util

Source Code of net.sf.jasperreports.engine.util.JRFloatLocaleConverter

/*
* JasperReports - Free Java Reporting Library.
* Copyright (C) 2001 - 2009 Jaspersoft Corporation. All rights reserved.
* http://www.jaspersoft.com
*
* Unless you have purchased a commercial license agreement from Jaspersoft,
* the following license terms apply:
*
* This program is part of JasperReports.
*
* JasperReports 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 3 of the License, or
* (at your option) any later version.
*
* JasperReports 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 JasperReports. If not, see <http://www.gnu.org/licenses/>.
*/
package net.sf.jasperreports.engine.util;

import java.text.ParseException;
import java.util.Locale;

import org.apache.commons.beanutils.ConversionException;
import org.apache.commons.beanutils.locale.converters.DecimalLocaleConverter;

/**
* <code>FloatLocaleConverter</code> extension that fixes
* https://issues.apache.org/jira/browse/BEANUTILS-351
*
* To be removed on upgrade to BeanUtils 1.8.1.
*
* @author Lucian Chirita (lucianc@users.sourceforge.net)
* @version $Id: JRFloatLocaleConverter.java 3435 2010-02-18 14:10:42Z teodord $
*/
public class JRFloatLocaleConverter extends DecimalLocaleConverter
{

  public JRFloatLocaleConverter(Locale locale)
  {
    super(locale);
  }

  protected Object parse(Object value, String pattern) throws ParseException
  {
    final Number parsed = (Number) super.parse(value, pattern);
    double doubleValue = parsed.doubleValue();
    double posDouble = (doubleValue >= 0) ? doubleValue : (doubleValue * -1);
    if ((posDouble > 0 && posDouble < Float.MIN_VALUE) || posDouble > Float.MAX_VALUE)
    {
      throw new ConversionException("Supplied number is not of type Float: "+parsed);
    }
    return new Float(parsed.floatValue()); // unlike superclass it returns Float type
  }
 
}
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