| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| /* |
| * $Id$ |
| */ |
| package org.apache.xalan.templates; |
| |
| import javax.xml.transform.ErrorListener; |
| import javax.xml.transform.TransformerException; |
| |
| import org.apache.xalan.res.XSLMessages; |
| import org.apache.xalan.res.XSLTErrorResources; |
| import org.apache.xml.utils.QName; |
| import org.apache.xml.utils.SAXSourceLocator; |
| import org.apache.xpath.Expression; |
| import org.apache.xpath.XPathContext; |
| import org.apache.xpath.functions.Function3Args; |
| import org.apache.xpath.functions.WrongNumberArgsException; |
| import org.apache.xpath.objects.XObject; |
| import org.apache.xpath.objects.XString; |
| |
| /** |
| * Execute the FormatNumber() function. |
| * @xsl.usage advanced |
| */ |
| public class FuncFormatNumb extends Function3Args |
| { |
| static final long serialVersionUID = -8869935264870858636L; |
| |
| /** |
| * 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 |
| 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(java.util.Locale.US); |
| |
| 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 key |
| * @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, String 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)) |
| reportWrongNumberArgs(); |
| } |
| |
| /** |
| * Constructs and throws a WrongNumberArgException with the appropriate |
| * message for this function object. |
| * |
| * @throws WrongNumberArgsException |
| */ |
| protected void reportWrongNumberArgs() throws WrongNumberArgsException { |
| throw new WrongNumberArgsException(XSLMessages.createMessage(XSLTErrorResources.ER_TWO_OR_THREE, null)); //"2 or 3"); |
| } |
| } |