- /*
- * 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.transformer;
-
- import org.w3c.dom.Node;
- import org.apache.xml.dtm.DTM;
-
- import org.xml.sax.*;
-
- import org.apache.xml.dtm.ref.DTMTreeWalker;
- import org.apache.xml.utils.MutableAttrListImpl;
- import org.apache.xalan.templates.ElemTemplateElement;
- import org.apache.xpath.DOMHelper;
- import org.apache.xpath.XPathContext;
-
- /**
- * <meta name="usage" content="internal"/>
- * Handle a walk of a tree, but screen out attributes for
- * the result tree.
- */
- public class TreeWalker2Result extends DTMTreeWalker
- {
-
- /** The transformer instance */
- TransformerImpl m_transformer;
-
- /** The result tree handler */
- ResultTreeHandler 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,
- ResultTreeHandler 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);
- m_handler.startElement(namespace, localName, elemName, null);
-
- boolean hasNSDecls = false;
- DTM dtm = m_dtm;
- for (int ns = dtm.getFirstNamespaceNode(node, true);
- DTM.NULL != ns; ns = dtm.getNextNamespaceNode(node, ns, true))
- {
- m_handler.ensureNamespaceDeclDeclared(dtm, ns);
- }
-
- // %REVIEW% This flag is apparently never set true. Is that
- // a bug, or should this code be phased out?
- if(hasNSDecls)
- {
- m_handler.addNSDeclsToAttrs();
- }
-
- for (int attr = dtm.getFirstAttribute(node);
- DTM.NULL != attr; attr = dtm.getNextAttribute(attr))
- {
- m_handler.addAttribute(attr);
- }
- }
-
- }
- else
- {
- xcntxt.pushCurrentNode(node);
- super.startNode(node);
- xcntxt.popCurrentNode();
- }
- }
- catch(javax.xml.transform.TransformerException te)
- {
- throw new org.xml.sax.SAXException(te);
- }
- }
- }