/*
* Copyright (c) 1998-2010 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
* Free SoftwareFoundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.xsl.fun;
import com.caucho.xpath.Expr;
import com.caucho.xpath.ExprEnvironment;
import com.caucho.xpath.XPathException;
import com.caucho.xpath.XPathFun;
import com.caucho.xpath.pattern.AbstractPattern;
import org.w3c.dom.Node;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.ArrayList;
import java.util.HashMap;
/**
* The format-number(...) function.
*/
public class FormatNumberFun extends XPathFun {
private HashMap locales;
public FormatNumberFun()
{
locales = new HashMap();
}
/**
* Add a new xsl:locale
*/
public void addLocale(String name, DecimalFormatSymbols symbols)
{
locales.put(name, symbols);
}
public HashMap getLocales()
{
return locales;
}
/**
* Evaluate the function.
*
* @param pattern The context pattern.
* @param args The evaluated arguments
*/
public Object eval(Node node, ExprEnvironment env,
AbstractPattern pattern, ArrayList args)
throws XPathException
{
if (args.size() < 2)
return null;
double number = Expr.toDouble(args.get(0));
String format = Expr.toString(args.get(1));
String localeName = null;
if (args.size() > 2)
localeName = Expr.toString(args.get(2));
else
localeName = "*";
if (format == null)
return null;
DecimalFormatSymbols symbols;
symbols = (DecimalFormatSymbols) locales.get(localeName);
try {
DecimalFormat form;
if (symbols == null)
form = new DecimalFormat(format);
else {
form = new DecimalFormat(format, symbols);
}
/*
formatter = new java.text.DecimalFormat();
formatter.setDecimalFormatSymbols(dfs);
form.applyLocalizedPattern(format);
*/
return form.format(number);
} catch (Exception e) {
throw new XPathException(e);
}
}
}