/*
* The Apache Software License, Version 1.1
*
*
* Copyright (c) 1999 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Xalan" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation and was
* originally based on software copyright (c) 1999, Lotus
* Development Corporation., http://www.lotus.com. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.xalan.templates;
import java.util.Vector;
import org.apache.xml.utils.QName;
import org.apache.xpath.functions.Function;
import org.apache.xpath.functions.Function3Args;
import org.apache.xpath.XPathContext;
import org.apache.xpath.objects.XObject;
import org.apache.xpath.objects.XString;
import org.apache.xpath.XPath;
import org.apache.xpath.Expression;
import org.apache.xpath.functions.WrongNumberArgsException;
import org.apache.xalan.res.XSLMessages;
import org.apache.xalan.res.XSLTErrorResources;
import org.w3c.dom.Node;
import javax.xml.transform.TransformerException;
import javax.xml.transform.ErrorListener;
import org.apache.xml.utils.SAXSourceLocator;
/**
* <meta name="usage" content="advanced"/>
* Execute the FormatNumber() function.
*/
public class FuncFormatNumb extends Function3Args
{
/**
* Execute the function. The function must return
* a valid object.
* @param xctxt The current execution context.
* @return A valid XObject.
*
* @throws javax.xml.transform.TransformerException
*/
public XObject execute(XPathContext xctxt) throws javax.xml.transform.TransformerException
{
// A bit of an ugly hack to get our context.
ElemTemplateElement templElem =
(ElemTemplateElement) xctxt.getNamespaceContext();
StylesheetRoot ss = templElem.getStylesheetRoot();
java.text.DecimalFormat formatter = null;
java.text.DecimalFormatSymbols dfs = null;
double num = getArg0().execute(xctxt).num();
String patternStr = getArg1().execute(xctxt).str();
// TODO: what should be the behavior here??
if (patternStr.indexOf(0x00A4) > 0)
ss.error(XSLTErrorResources.ER_CURRENCY_SIGN_ILLEGAL); // currency sign not allowed
// this third argument is not a locale name. It is the name of a
// decimal-format declared in the stylesheet!(xsl:decimal-format
try
{
Expression arg2Expr = getArg2();
if (null != arg2Expr)
{
String dfName = arg2Expr.execute(xctxt).str();
QName qname = new QName(dfName, xctxt.getNamespaceContext());
dfs = ss.getDecimalFormatComposed(qname);
if (null == dfs)
{
warn(xctxt, XSLTErrorResources.WG_NO_DECIMALFORMAT_DECLARATION,
new Object[]{ dfName }); //"not found!!!
//formatter = new java.text.DecimalFormat(patternStr);
}
else
{
//formatter = new java.text.DecimalFormat(patternStr, dfs);
formatter = new java.text.DecimalFormat();
formatter.setDecimalFormatSymbols(dfs);
formatter.applyLocalizedPattern(patternStr);
}
}
//else
if (null == formatter)
{
// look for a possible default decimal-format
if (ss.getDecimalFormatCount() > 0)
dfs = ss.getDecimalFormatComposed(new QName(""));
if (dfs != null)
{
formatter = new java.text.DecimalFormat();
formatter.setDecimalFormatSymbols(dfs);
formatter.applyLocalizedPattern(patternStr);
}
else
{
dfs = new java.text.DecimalFormatSymbols();
dfs.setInfinity(Constants.ATTRVAL_INFINITY);
dfs.setNaN(Constants.ATTRVAL_NAN);
formatter = new java.text.DecimalFormat();
formatter.setDecimalFormatSymbols(dfs);
if (null != patternStr)
formatter.applyLocalizedPattern(patternStr);
}
}
return new XString(formatter.format(num));
}
catch (Exception iae)
{
templElem.error(XSLTErrorResources.ER_MALFORMED_FORMAT_STRING,
new Object[]{ patternStr });
return XString.EMPTYSTRING;
//throw new XSLProcessorException(iae);
}
}
/**
* Warn the user of a problem.
*
* @param xctxt The XPath runtime state.
* @param msg Warning message code
* @param args Arguments to be used in warning message
* @throws XSLProcessorException thrown if the active ProblemListener and XPathContext decide
* the error condition is severe enough to halt processing.
*
* @throws javax.xml.transform.TransformerException
*/
public void warn(XPathContext xctxt, int msg, Object args[])
throws javax.xml.transform.TransformerException
{
String formattedMsg = XSLMessages.createWarning(msg, args);
ErrorListener errHandler = xctxt.getErrorListener();
errHandler.warning(new TransformerException(formattedMsg,
(SAXSourceLocator)xctxt.getSAXLocator()));
}
/**
* Overide the superclass method to allow one or two arguments.
*
*
* @param argNum Number of arguments passed in
*
* @throws WrongNumberArgsException
*/
public void checkNumberArgs(int argNum) throws WrongNumberArgsException
{
if ((argNum > 3) || (argNum < 2))
throw new WrongNumberArgsException("2 or 3");
}
}