| /* |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 1999-2003 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 org.w3c.dom.*; |
| import org.apache.xml.dtm.DTM; |
| |
| import org.xml.sax.*; |
| |
| import org.apache.xpath.*; |
| import org.apache.xpath.Expression; |
| import org.apache.xpath.objects.XObjectFactory; |
| import org.apache.xpath.objects.XObject; |
| import org.apache.xpath.objects.XString; |
| import org.apache.xpath.objects.XRTreeFrag; |
| import org.apache.xpath.objects.XRTreeFragSelectWrapper; |
| import org.apache.xml.utils.QName; |
| import org.apache.xalan.trace.SelectionEvent; |
| import org.apache.xalan.res.XSLTErrorResources; |
| import org.apache.xalan.transformer.TransformerImpl; |
| |
| import javax.xml.transform.TransformerException; |
| |
| /** |
| * Handles the EXSLT result element within an EXSLT function element. |
| */ |
| public class ElemExsltFuncResult extends ElemVariable |
| { |
| |
| /** |
| * Generate the EXSLT function return value, and assign it to the variable |
| * index slot assigned for it in ElemExsltFunction compose(). |
| * |
| */ |
| public void execute(TransformerImpl transformer) throws TransformerException |
| { |
| XPathContext context = transformer.getXPathContext(); |
| ElemExsltFunction owner = getOwnerFunction(); |
| if (owner != null) |
| { |
| // Verify that result has not already been set by another result |
| // element. Recursion is allowed: intermediate results are cleared |
| // in the owner ElemExsltFunction execute(). |
| if (owner.isResultSet()) |
| throw new TransformerException("An EXSLT function cannot set more than one result!"); |
| |
| int sourceNode = context.getCurrentNode(); |
| // Set the return value; |
| XObject var = getValue(transformer, sourceNode); |
| owner.setResult(var); |
| } |
| } |
| |
| /** |
| * Get an integer representation of the element type. |
| * |
| * @return An integer representation of the element, defined in the |
| * Constants class. |
| * @see org.apache.xalan.templates.Constants |
| */ |
| public int getXSLToken() |
| { |
| return Constants.EXSLT_ELEMNAME_FUNCRESULT; |
| } |
| |
| /** |
| * Return the node name, defined in the |
| * Constants class. |
| * @see org.apache.xalan.templates.Constants. |
| * @return The node name |
| * |
| */ |
| public String getNodeName() |
| { |
| return Constants.EXSLT_ELEMNAME_FUNCRESULT_STRING; |
| } |
| |
| /** |
| * Get the ElemExsltFunction that contains the ElemResult so we can set an ElemExsltFunction variable |
| * to the local variable stack index to the return value. |
| */ |
| public ElemExsltFunction getOwnerFunction() |
| { |
| ElemTemplateElement elem = this; |
| while((elem != null) && !(elem instanceof ElemExsltFunction)) |
| { |
| elem = elem.getParentElem(); |
| } |
| return (ElemExsltFunction)elem; |
| } |
| |
| } |