| /* |
| * 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 org.w3c.dom.Node; |
| //import org.w3c.dom.DOMException; |
| import org.apache.xml.dtm.DTM; |
| |
| import javax.xml.transform.TransformerException; |
| |
| import org.apache.xml.utils.QName; |
| import org.apache.xalan.res.XSLTErrorResources; |
| import org.apache.xalan.res.XSLMessages; |
| import org.apache.xalan.transformer.TransformerImpl; |
| import org.apache.xalan.transformer.ResultTreeHandler; |
| import org.apache.xpath.XPathContext; |
| |
| import org.xml.sax.SAXException; |
| |
| /** |
| * <meta name="usage" content="advanced"/> |
| * Implement xsl:attribute. |
| * <pre> |
| * &!ELEMENT xsl:attribute %char-template;> |
| * &!ATTLIST xsl:attribute |
| * name %avt; #REQUIRED |
| * namespace %avt; #IMPLIED |
| * %space-att; |
| * & |
| * </pre> |
| * @see <a href="http://www.w3.org/TR/xslt#creating-attributes">creating-attributes in XSLT Specification</a> |
| */ |
| public class ElemAttribute extends ElemElement |
| { |
| |
| /** |
| * Get an int constant identifying the type of element. |
| * @see org.apache.xalan.templates.Constants |
| * |
| * @return The token ID for this element |
| */ |
| public int getXSLToken() |
| { |
| return Constants.ELEMNAME_ATTRIBUTE; |
| } |
| |
| /** |
| * Return the node name. |
| * |
| * @return The element name |
| */ |
| public String getNodeName() |
| { |
| return Constants.ELEMNAME_ATTRIBUTE_STRING; |
| } |
| |
| /** |
| * Create an attribute in the result tree. |
| * @see <a href="http://www.w3.org/TR/xslt#creating-attributes">creating-attributes in XSLT Specification</a> |
| * |
| * @param transformer non-null reference to the the current transform-time state. |
| * @param sourceNode non-null reference to the <a href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>. |
| * @param mode reference, which may be null, to the <a href="http://www.w3.org/TR/xslt#modes">current mode</a>. |
| * |
| * @throws TransformerException |
| */ |
| public void execute( |
| TransformerImpl transformer) |
| throws TransformerException |
| { |
| ResultTreeHandler rhandler = transformer.getResultTreeHandler(); |
| |
| // If they are trying to add an attribute when there isn't an |
| // element pending, it is an error. |
| if (!rhandler.isElementPending()) |
| { |
| // Make sure the trace event is sent. |
| if (TransformerImpl.S_DEBUG) |
| transformer.getTraceManager().fireTraceEvent(this); |
| |
| XPathContext xctxt = transformer.getXPathContext(); |
| int sourceNode = xctxt.getCurrentNode(); |
| String attrName = m_name_avt.evaluate(xctxt, sourceNode, this); |
| transformer.getMsgMgr().warn(this, |
| XSLTErrorResources.WG_ILLEGAL_ATTRIBUTE, |
| new Object[]{ attrName }); |
| |
| return; |
| |
| // warn(templateChild, sourceNode, "Trying to add attribute after element child has been added, ignoring..."); |
| } |
| |
| super.execute(transformer); |
| |
| } |
| |
| /** |
| * Resolve the namespace into a prefix. At this level, if no prefix exists, |
| * then return a manufactured prefix. |
| * |
| * @param rhandler The current result tree handler. |
| * @param prefix The probable prefix if already known. |
| * @param nodeNamespace The namespace, which should not be null. |
| * |
| * @return The prefix to be used. |
| */ |
| protected String resolvePrefix(ResultTreeHandler rhandler, |
| String prefix, String nodeNamespace) |
| throws TransformerException |
| { |
| |
| if (null != prefix && (prefix.length() == 0 || prefix.equals("xmlns"))) |
| { |
| // Since we can't use default namespace, in this case we try and |
| // see if a prefix has already been defined or this namespace. |
| prefix = rhandler.getPrefix(nodeNamespace); |
| |
| // System.out.println("nsPrefix: "+nsPrefix); |
| if (null == prefix || prefix.length() == 0 || prefix.equals("xmlns")) |
| { |
| if(nodeNamespace.length() > 0) |
| { |
| prefix = rhandler.getNewUniqueNSPrefix(); |
| } |
| else |
| prefix = ""; |
| } |
| } |
| return prefix; |
| } |
| |
| /** |
| * Validate that the node name is good. |
| * |
| * @param nodeName Name of the node being constructed, which may be null. |
| * |
| * @return true if the node name is valid, false otherwise. |
| */ |
| protected boolean validateNodeName(String nodeName) |
| { |
| if(null == nodeName) |
| return false; |
| if(nodeName.equals("xmlns")) |
| return false; |
| return super.validateNodeName(nodeName); |
| } |
| |
| /** |
| * Construct a node in the result tree. This method is overloaded by |
| * xsl:attribute. At this class level, this method creates an element. |
| * |
| * @param nodeName The name of the node, which may be null. |
| * @param prefix The prefix for the namespace, which may be null. |
| * @param nodeNamespace The namespace of the node, which may be null. |
| * @param transformer non-null reference to the the current transform-time state. |
| * @param sourceNode non-null reference to the <a href="http://www.w3.org/TR/xslt#dt-current-node">current source node</a>. |
| * @param mode reference, which may be null, to the <a href="http://www.w3.org/TR/xslt#modes">current mode</a>. |
| * |
| * @throws TransformerException |
| */ |
| void constructNode( |
| String nodeName, String prefix, String nodeNamespace, TransformerImpl transformer) |
| throws TransformerException |
| { |
| |
| if(null != nodeName && nodeName.length() > 0) |
| { |
| ResultTreeHandler rhandler = transformer.getResultTreeHandler(); |
| if(prefix != null && prefix.length() > 0) |
| { |
| try |
| { |
| rhandler.startPrefixMapping(prefix, nodeNamespace, false); |
| } |
| catch(SAXException se) |
| { |
| throw new TransformerException(se); |
| } |
| } |
| String val = transformer.transformToString(this); |
| String localName = QName.getLocalPart(nodeName); |
| rhandler.addAttribute(nodeNamespace, localName, nodeName, "CDATA", val); |
| } |
| } |
| |
| |
| /** |
| * Add a child to the child list. |
| * <!ELEMENT xsl:attribute %char-template;> |
| * <!ATTLIST xsl:attribute |
| * name %avt; #REQUIRED |
| * namespace %avt; #IMPLIED |
| * %space-att; |
| * > |
| * |
| * @param newChild Child to append to the list of this node's children |
| * |
| * @return The node we just appended to the children list |
| * |
| * @throws DOMException |
| */ |
| public ElemTemplateElement appendChild(ElemTemplateElement newChild) |
| { |
| |
| int type = ((ElemTemplateElement) newChild).getXSLToken(); |
| |
| switch (type) |
| { |
| |
| // char-instructions |
| case Constants.ELEMNAME_TEXTLITERALRESULT : |
| case Constants.ELEMNAME_APPLY_TEMPLATES : |
| case Constants.ELEMNAME_APPLY_IMPORTS : |
| case Constants.ELEMNAME_CALLTEMPLATE : |
| case Constants.ELEMNAME_FOREACH : |
| case Constants.ELEMNAME_VALUEOF : |
| case Constants.ELEMNAME_COPY_OF : |
| case Constants.ELEMNAME_NUMBER : |
| case Constants.ELEMNAME_CHOOSE : |
| case Constants.ELEMNAME_IF : |
| case Constants.ELEMNAME_TEXT : |
| case Constants.ELEMNAME_COPY : |
| case Constants.ELEMNAME_VARIABLE : |
| case Constants.ELEMNAME_MESSAGE : |
| |
| // instructions |
| // case Constants.ELEMNAME_PI: |
| // case Constants.ELEMNAME_COMMENT: |
| // case Constants.ELEMNAME_ELEMENT: |
| // case Constants.ELEMNAME_ATTRIBUTE: |
| break; |
| default : |
| error(XSLTErrorResources.ER_CANNOT_ADD, |
| new Object[]{ newChild.getNodeName(), |
| this.getNodeName() }); //"Can not add " +((ElemTemplateElement)newChild).m_elemName + |
| |
| //" to " + this.m_elemName); |
| } |
| |
| return super.appendChild(newChild); |
| } |
| } |