/*
* file: MPXJNumberFormat.java
* author: Jon Iles
* Scott Melville
* copyright: (c) Packwood Software 2002-2006
* date: 15/08/2002
*/
/*
* 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 net.sf.mpxj.mpx;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.text.ParsePosition;
import java.util.Arrays;
/**
* This class extends the functionality of the DecimalFormat class
* for use within MPXJ.
*/
public final class MPXJNumberFormat extends DecimalFormat
{
/**
* This method is used to configure the primary and alternative
* format patterns.
*
* @param primaryPattern new format pattern
* @param alternativePatterns alternative format patterns
* @param decimalSeparator Locale specific decimal separator to replace placeholder
* @param groupingSeparator Locale specific grouping separator to replace placeholder
*/
public void applyPattern(String primaryPattern, String[] alternativePatterns, char decimalSeparator, char groupingSeparator)
{
m_symbols.setDecimalSeparator(decimalSeparator);
m_symbols.setGroupingSeparator(groupingSeparator);
setDecimalFormatSymbols(m_symbols);
applyPattern(primaryPattern);
if (alternativePatterns != null && alternativePatterns.length != 0)
{
int loop;
if (m_alternativeFormats == null || m_alternativeFormats.length != alternativePatterns.length)
{
m_alternativeFormats = new DecimalFormat[alternativePatterns.length];
for (loop = 0; loop < alternativePatterns.length; loop++)
{
m_alternativeFormats[loop] = new DecimalFormat();
}
}
for (loop = 0; loop < alternativePatterns.length; loop++)
{
m_alternativeFormats[loop].setDecimalFormatSymbols(m_symbols);
m_alternativeFormats[loop].applyPattern(alternativePatterns[loop]);
}
}
}
/**
* {@inheritDoc}
*/
@Override public Number parse(String str, ParsePosition parsePosition)
{
Number result = null;
if (str == null)
{
parsePosition.setIndex(-1);
}
else
{
str = str.trim();
if (str.length() == 0)
{
parsePosition.setIndex(-1);
}
else
{
result = super.parse(str, parsePosition);
if (parsePosition.getIndex() == 0)
{
result = null;
if (m_alternativeFormats != null)
{
for (int loop = 0; loop < m_alternativeFormats.length; loop++)
{
result = m_alternativeFormats[loop].parse(str, parsePosition);
if (parsePosition.getIndex() != 0)
{
break;
}
}
if (parsePosition.getIndex() == 0)
{
result = null;
}
}
}
}
}
return (result);
}
@Override public int hashCode()
{
final int prime = 31;
int result = super.hashCode();
result = prime * result + Arrays.hashCode(m_alternativeFormats);
result = prime * result + ((m_symbols == null) ? 0 : m_symbols.hashCode());
return result;
}
@Override public boolean equals(Object obj)
{
if (this == obj)
{
return true;
}
if (!super.equals(obj))
{
return false;
}
if (getClass() != obj.getClass())
{
return false;
}
MPXJNumberFormat other = (MPXJNumberFormat) obj;
if (!Arrays.equals(m_alternativeFormats, other.m_alternativeFormats))
{
return false;
}
if (m_symbols == null)
{
if (other.m_symbols != null)
{
return false;
}
}
else
{
if (!m_symbols.equals(other.m_symbols))
{
return false;
}
}
return true;
}
/**
* Number formatter.
*/
private DecimalFormatSymbols m_symbols = new DecimalFormatSymbols();
private DecimalFormat[] m_alternativeFormats;
}