| /* |
| * 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.transformer; |
| |
| import org.apache.xalan.serialize.SerializerUtils; |
| import org.apache.xml.dtm.DTM; |
| import org.apache.xml.dtm.ref.DTMTreeWalker; |
| import org.apache.xml.serializer.SerializationHandler; |
| import org.apache.xpath.XPathContext; |
| |
| /** |
| * Handle a walk of a tree, but screen out attributes for |
| * the result tree. |
| * @xsl.usage internal |
| */ |
| public class TreeWalker2Result extends DTMTreeWalker |
| { |
| |
| /** The transformer instance */ |
| TransformerImpl m_transformer; |
| |
| /** The result tree handler */ |
| SerializationHandler m_handler; |
| |
| /** Node where to start the tree walk */ |
| int m_startNode; |
| |
| /** |
| * Constructor. |
| * |
| * @param transformer Non-null transformer instance |
| * @param handler The Result tree handler to use |
| */ |
| public TreeWalker2Result(TransformerImpl transformer, |
| SerializationHandler handler) |
| { |
| |
| super(handler, null); |
| |
| m_transformer = transformer; |
| m_handler = handler; |
| } |
| |
| /** |
| * Perform a pre-order traversal non-recursive style. |
| * |
| * @param pos Start node for traversal |
| * |
| * @throws TransformerException |
| */ |
| public void traverse(int pos) throws org.xml.sax.SAXException |
| { |
| m_dtm = m_transformer.getXPathContext().getDTM(pos); |
| m_startNode = pos; |
| |
| super.traverse(pos); |
| } |
| |
| /** |
| * End processing of given node |
| * |
| * |
| * @param node Node we just finished processing |
| * |
| * @throws org.xml.sax.SAXException |
| */ |
| protected void endNode(int node) throws org.xml.sax.SAXException |
| { |
| super.endNode(node); |
| if(DTM.ELEMENT_NODE == m_dtm.getNodeType(node)) |
| { |
| m_transformer.getXPathContext().popCurrentNode(); |
| } |
| } |
| |
| /** |
| * Start traversal of the tree at the given node |
| * |
| * |
| * @param node Starting node for traversal |
| * |
| * @throws TransformerException |
| */ |
| protected void startNode(int node) throws org.xml.sax.SAXException |
| { |
| |
| XPathContext xcntxt = m_transformer.getXPathContext(); |
| try |
| { |
| |
| if (DTM.ELEMENT_NODE == m_dtm.getNodeType(node)) |
| { |
| xcntxt.pushCurrentNode(node); |
| |
| if(m_startNode != node) |
| { |
| super.startNode(node); |
| } |
| else |
| { |
| String elemName = m_dtm.getNodeName(node); |
| String localName = m_dtm.getLocalName(node); |
| String namespace = m_dtm.getNamespaceURI(node); |
| |
| //xcntxt.pushCurrentNode(node); |
| // SAX-like call to allow adding attributes afterwards |
| m_handler.startElement(namespace, localName, elemName); |
| boolean hasNSDecls = false; |
| DTM dtm = m_dtm; |
| for (int ns = dtm.getFirstNamespaceNode(node, true); |
| DTM.NULL != ns; ns = dtm.getNextNamespaceNode(node, ns, true)) |
| { |
| SerializerUtils.ensureNamespaceDeclDeclared(m_handler,dtm, ns); |
| } |
| |
| |
| for (int attr = dtm.getFirstAttribute(node); |
| DTM.NULL != attr; attr = dtm.getNextAttribute(attr)) |
| { |
| SerializerUtils.addAttribute(m_handler, attr); |
| } |
| } |
| |
| } |
| else |
| { |
| xcntxt.pushCurrentNode(node); |
| super.startNode(node); |
| xcntxt.popCurrentNode(); |
| } |
| } |
| catch(javax.xml.transform.TransformerException te) |
| { |
| throw new org.xml.sax.SAXException(te); |
| } |
| } |
| } |