| /* LiteralNode.java -- |
| Copyright (C) 2004 Free Software Foundation, Inc. |
| |
| This file is part of GNU Classpath. |
| |
| GNU Classpath 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, or (at your option) |
| any later version. |
| |
| GNU Classpath 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. See the GNU |
| General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU Classpath; see the file COPYING. If not, write to the |
| Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. |
| |
| Linking this library statically or dynamically with other modules is |
| making a combined work based on this library. Thus, the terms and |
| conditions of the GNU General Public License cover the whole |
| combination. |
| |
| As a special exception, the copyright holders of this library give you |
| permission to link this library with independent modules to produce an |
| executable, regardless of the license terms of these independent |
| modules, and to copy and distribute the resulting executable under |
| terms of your choice, provided that you also meet, for each linked |
| independent module, the terms and conditions of the license of that |
| module. An independent module is a module which is not derived from |
| or based on this library. If you modify this library, you may extend |
| this exception to your version of the library, but you are not |
| obligated to do so. If you do not wish to do so, delete this |
| exception statement from your version. */ |
| |
| package gnu.xml.transform; |
| |
| import java.util.Collection; |
| import java.util.Collections; |
| import java.util.HashSet; |
| import java.util.StringTokenizer; |
| import javax.xml.namespace.QName; |
| import javax.xml.transform.TransformerException; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.NamedNodeMap; |
| import org.w3c.dom.Node; |
| |
| /** |
| * A template node that copies a DOM node in the template to the result |
| * tree. |
| * |
| * @author <a href='mailto:dog@gnu.org'>Chris Burdess</a> |
| */ |
| final class LiteralNode |
| extends TemplateNode |
| { |
| |
| /** |
| * The source node in the XSL template. |
| */ |
| final Node source; |
| |
| final Collection elementExcludeResultPrefixes; |
| |
| LiteralNode(TemplateNode children, TemplateNode next, Node source) |
| { |
| super(children, next); |
| this.source = source; |
| if (source.getNodeType() == Node.ELEMENT_NODE) |
| { |
| NamedNodeMap attrs = source.getAttributes(); |
| Node attr = attrs.getNamedItemNS(Stylesheet.XSL_NS, |
| "exclude-result-prefixes"); |
| if (attr != null) |
| { |
| elementExcludeResultPrefixes = new HashSet(); |
| StringTokenizer st = new StringTokenizer(attr.getNodeValue()); |
| while (st.hasMoreTokens()) |
| { |
| elementExcludeResultPrefixes.add(st.nextToken()); |
| } |
| } |
| else |
| { |
| elementExcludeResultPrefixes = Collections.EMPTY_SET; |
| } |
| } |
| else |
| { |
| elementExcludeResultPrefixes = null; |
| } |
| } |
| |
| TemplateNode clone(Stylesheet stylesheet) |
| { |
| return new LiteralNode((children == null) ? null : |
| children.clone(stylesheet), |
| (next == null) ? null : |
| next.clone(stylesheet), |
| source); |
| } |
| |
| void doApply(Stylesheet stylesheet, QName mode, |
| Node context, int pos, int len, |
| Node parent, Node nextSibling) |
| throws TransformerException |
| { |
| Node result = null; |
| Document doc = (parent instanceof Document) ? (Document) parent : |
| parent.getOwnerDocument(); |
| short nodeType = source.getNodeType(); |
| if (nodeType == Node.ATTRIBUTE_NODE && |
| parent.getFirstChild() != null) |
| { |
| // Ignore attributes added after child elements |
| } |
| else |
| { |
| // Namespace aliasing |
| if (nodeType == Node.ELEMENT_NODE) |
| { |
| String prefix = source.getPrefix(); |
| if (prefix == null) |
| { |
| prefix = "#default"; |
| } |
| String resultPrefix = |
| (String) stylesheet.namespaceAliases.get(prefix); |
| if (resultPrefix != null) |
| { |
| if ("#default".equals(resultPrefix)) |
| { |
| resultPrefix = null; |
| } |
| String uri = source.lookupNamespaceURI(resultPrefix); |
| String name = source.getNodeName(); |
| // Create a new element node in the result document |
| result = doc.createElementNS(uri, name); |
| // copy attributes |
| NamedNodeMap srcAttrs = source.getAttributes(); |
| NamedNodeMap dstAttrs = result.getAttributes(); |
| int l = srcAttrs.getLength(); |
| for (int i = 0; i < l; i++) |
| { |
| Node attr = srcAttrs.item(i); |
| if (!Stylesheet.XSL_NS.equals(attr.getNamespaceURI())) |
| { |
| attr = attr.cloneNode(true); |
| attr = doc.adoptNode(attr); |
| dstAttrs.setNamedItemNS(attr); |
| } |
| } |
| } |
| } |
| if (result == null) |
| { |
| // Create result node |
| result = source.cloneNode(false); |
| // Remove any XSL attributes |
| NamedNodeMap attrs = result.getAttributes(); |
| if (attrs != null) |
| { |
| int l = attrs.getLength(); |
| for (int i = 0; i < l; i++) |
| { |
| Node attr = attrs.item(i); |
| if (Stylesheet.XSL_NS.equals(attr.getNamespaceURI())) |
| { |
| attrs.removeNamedItem(attr.getNodeName()); |
| i--; |
| l--; |
| } |
| } |
| } |
| result = doc.adoptNode(result); |
| if (result == null) |
| { |
| String msg = "Error adopting node to result tree"; |
| DOMSourceLocator l = new DOMSourceLocator(context); |
| throw new TransformerException(msg, l); |
| } |
| } |
| if (nextSibling != null) |
| { |
| parent.insertBefore(result, nextSibling); |
| } |
| else |
| { |
| parent.appendChild(result); |
| } |
| if (nodeType == Node.ELEMENT_NODE) |
| { |
| stylesheet.addNamespaceNodes(source, result, doc, |
| elementExcludeResultPrefixes); |
| } |
| // children |
| if (children != null) |
| { |
| children.apply(stylesheet, mode, |
| context, pos, len, |
| result, null); |
| } |
| } |
| // next sibling |
| if (next != null) |
| { |
| next.apply(stylesheet, mode, |
| context, pos, len, |
| parent, nextSibling); |
| } |
| } |
| |
| public String toString() |
| { |
| StringBuffer buf = new StringBuffer(getClass().getName()); |
| buf.append('['); |
| buf.append("source="); |
| buf.append(source); |
| buf.append(']'); |
| return buf.toString(); |
| } |
| |
| } |