| /* |
| * @(#)$Id$ |
| * |
| * The Apache Software License, Version 1.1 |
| * |
| * |
| * Copyright (c) 2001 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) 2001, Sun |
| * Microsystems., http://www.sun.com. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| * |
| * @author G. Todd Miller |
| */ |
| |
| |
| package org.apache.xalan.xsltc.trax; |
| |
| import java.util.Stack; |
| import java.util.Vector; |
| |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.Locator; |
| import org.xml.sax.Attributes; |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.ProcessingInstruction; |
| import org.w3c.dom.Comment; |
| import org.w3c.dom.DOMException; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Text; |
| import org.w3c.dom.Attr; |
| import org.xml.sax.ext.LexicalHandler; |
| import org.xml.sax.SAXException; |
| |
| import org.apache.xalan.xsltc.runtime.Constants; |
| |
| public class SAX2DOM implements ContentHandler, LexicalHandler, Constants { |
| |
| private Node _root = null; |
| private Document _document = null; |
| private Stack _nodeStk = new Stack(); |
| private Vector _namespaceDecls = null; |
| |
| public SAX2DOM() throws ParserConfigurationException { |
| final DocumentBuilderFactory factory = |
| DocumentBuilderFactory.newInstance(); |
| _document = factory.newDocumentBuilder().newDocument(); |
| _root = _document; |
| } |
| |
| public SAX2DOM(Node root) throws ParserConfigurationException { |
| _root = root; |
| if (root instanceof Document) { |
| _document = (Document)root; |
| } |
| else if (root != null) { |
| _document = root.getOwnerDocument(); |
| } |
| else { |
| final DocumentBuilderFactory factory = |
| DocumentBuilderFactory.newInstance(); |
| _document = factory.newDocumentBuilder().newDocument(); |
| _root = _document; |
| } |
| } |
| |
| public Node getDOM() { |
| return _root; |
| } |
| |
| public void characters(char[] ch, int start, int length) { |
| final Node last = (Node)_nodeStk.peek(); |
| |
| // No text nodes can be children of root (DOM006 exception) |
| if (last != _document) { |
| final String text = new String(ch, start, length); |
| last.appendChild(_document.createTextNode(text)); |
| } |
| } |
| |
| public void startDocument() { |
| _nodeStk.push(_root); |
| } |
| |
| public void endDocument() { |
| _nodeStk.pop(); |
| } |
| |
| public void startElement(String namespace, String localName, String qName, |
| Attributes attrs) |
| { |
| final Element tmp = (Element)_document.createElementNS(namespace, qName); |
| |
| // Add namespace declarations first |
| if (_namespaceDecls != null) { |
| final int nDecls = _namespaceDecls.size(); |
| for (int i = 0; i < nDecls; i++) { |
| final String prefix = (String) _namespaceDecls.elementAt(i++); |
| |
| if (prefix == null || prefix.equals(EMPTYSTRING)) { |
| tmp.setAttributeNS(XMLNS_URI, XMLNS_PREFIX, |
| (String) _namespaceDecls.elementAt(i)); |
| } |
| else { |
| tmp.setAttributeNS(XMLNS_URI, XMLNS_STRING + prefix, |
| (String) _namespaceDecls.elementAt(i)); |
| } |
| } |
| _namespaceDecls.clear(); |
| } |
| |
| // Add attributes to element |
| final int nattrs = attrs.getLength(); |
| for (int i = 0; i < nattrs; i++) { |
| if (attrs.getLocalName(i) == null) { |
| tmp.setAttribute(attrs.getQName(i), attrs.getValue(i)); |
| } |
| else { |
| tmp.setAttributeNS(attrs.getURI(i), attrs.getQName(i), |
| attrs.getValue(i)); |
| } |
| } |
| |
| // Append this new node onto current stack node |
| Node last = (Node)_nodeStk.peek(); |
| last.appendChild(tmp); |
| |
| // Push this node onto stack |
| _nodeStk.push(tmp); |
| } |
| |
| public void endElement(String namespace, String localName, String qName) { |
| _nodeStk.pop(); |
| } |
| |
| public void startPrefixMapping(String prefix, String uri) { |
| if (_namespaceDecls == null) { |
| _namespaceDecls = new Vector(2); |
| } |
| _namespaceDecls.addElement(prefix); |
| _namespaceDecls.addElement(uri); |
| } |
| |
| public void endPrefixMapping(String prefix) { |
| // do nothing |
| } |
| |
| /** |
| * This class is only used internally so this method should never |
| * be called. |
| */ |
| public void ignorableWhitespace(char[] ch, int start, int length) { |
| } |
| |
| /** |
| * adds processing instruction node to DOM. |
| */ |
| public void processingInstruction(String target, String data) { |
| final Node last = (Node)_nodeStk.peek(); |
| ProcessingInstruction pi = _document.createProcessingInstruction( |
| target, data); |
| if (pi != null) last.appendChild(pi); |
| } |
| |
| /** |
| * This class is only used internally so this method should never |
| * be called. |
| */ |
| public void setDocumentLocator(Locator locator) { |
| } |
| |
| /** |
| * This class is only used internally so this method should never |
| * be called. |
| */ |
| public void skippedEntity(String name) { |
| } |
| |
| |
| /** |
| * Lexical Handler method to create comment node in DOM tree. |
| */ |
| public void comment(char[] ch, int start, int length) { |
| final Node last = (Node)_nodeStk.peek(); |
| Comment comment = _document.createComment(new String(ch,start,length)); |
| if (comment != null) last.appendChild(comment); |
| } |
| |
| // Lexical Handler methods- not implemented |
| public void startCDATA() { } |
| public void endCDATA() { } |
| public void startEntity(java.lang.String name) { } |
| public void endDTD() { } |
| public void endEntity(String name) { } |
| public void startDTD(String name, String publicId, String systemId) |
| throws SAXException { } |
| |
| } |