/*
* Copyright (C) 2010 eXo Platform SAS.
*
* This 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 software 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 software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.xcmis.search.lucene.index;
import org.apache.lucene.document.NumberTools;
import java.math.BigDecimal;
/**
* Helper class. To convert double and BigDecimal to sorted strings
*/
public class ExtendedNumberTools
{
/**
* Converts a long to a String suitable for indexing.
*
* @param doubleVal double value
* @return double as string
*/
public static String doubleToString(double doubleVal)
{
long f = Double.doubleToRawLongBits(doubleVal);
if (f < 0)
{
f ^= 0x7fffffffffffffffL;
}
return NumberTools.longToString(f);
}
/**
* Converts a long to a String suitable for indexing.
*
* @param bigDecimal BigDecimal value
* @return double as string
*/
public static String bigDecimalToString(BigDecimal bigDecimal)
{
return doubleToString(bigDecimal.doubleValue());
}
}