| /* |
| * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package com.sun.xml.internal.txw2.output; |
| |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.Text; |
| import org.xml.sax.Attributes; |
| import org.xml.sax.ContentHandler; |
| import org.xml.sax.Locator; |
| import org.xml.sax.SAXException; |
| import org.xml.sax.ext.LexicalHandler; |
| |
| import javax.xml.parsers.DocumentBuilder; |
| import javax.xml.parsers.DocumentBuilderFactory; |
| import javax.xml.parsers.ParserConfigurationException; |
| import javax.xml.transform.dom.DOMResult; |
| import java.util.ArrayList; |
| import java.util.Stack; |
| |
| import com.sun.xml.internal.txw2.TxwException; |
| |
| /** |
| * {@link XmlSerializer} for {@link javax.xml.transform.dom.DOMResult} and {@link org.w3c.dom.Node}. |
| * |
| * @author Ryan.Shoemaker@Sun.COM |
| */ |
| public class DomSerializer implements XmlSerializer { |
| |
| // delegate to SaxSerializer |
| private final SaxSerializer serializer; |
| |
| public DomSerializer(Node node) { |
| Dom2SaxAdapter adapter = new Dom2SaxAdapter(node); |
| serializer = new SaxSerializer(adapter,adapter,false); |
| } |
| |
| public DomSerializer(DOMResult domResult) { |
| Node node = domResult.getNode(); |
| |
| if (node == null) { |
| try { |
| DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance(); |
| dbf.setNamespaceAware(true); |
| DocumentBuilder db = dbf.newDocumentBuilder(); |
| Document doc = db.newDocument(); |
| domResult.setNode(doc); |
| serializer = new SaxSerializer(new Dom2SaxAdapter(doc),null,false); |
| } catch (ParserConfigurationException pce) { |
| throw new TxwException(pce); |
| } |
| } else { |
| serializer = new SaxSerializer(new Dom2SaxAdapter(node),null,false); |
| } |
| } |
| |
| // XmlSerializer api's - delegate to SaxSerializer |
| public void startDocument() { |
| serializer.startDocument(); |
| } |
| |
| public void beginStartTag(String uri, String localName, String prefix) { |
| serializer.beginStartTag(uri, localName, prefix); |
| } |
| |
| public void writeAttribute(String uri, String localName, String prefix, StringBuilder value) { |
| serializer.writeAttribute(uri, localName, prefix, value); |
| } |
| |
| public void writeXmlns(String prefix, String uri) { |
| serializer.writeXmlns(prefix, uri); |
| } |
| |
| public void endStartTag(String uri, String localName, String prefix) { |
| serializer.endStartTag(uri, localName, prefix); |
| } |
| |
| public void endTag() { |
| serializer.endTag(); |
| } |
| |
| public void text(StringBuilder text) { |
| serializer.text(text); |
| } |
| |
| public void cdata(StringBuilder text) { |
| serializer.cdata(text); |
| } |
| |
| public void comment(StringBuilder comment) { |
| serializer.comment(comment); |
| } |
| |
| public void endDocument() { |
| serializer.endDocument(); |
| } |
| |
| public void flush() { |
| // no flushing |
| } |
| } |
| |
| |
| |
| |
| /** |
| * Builds a DOM tree from SAX2 events. |
| * |
| * @author Vivek Pandey |
| */ |
| class Dom2SaxAdapter implements ContentHandler, LexicalHandler { |
| |
| private final Node _node; |
| private final Stack _nodeStk = new Stack(); |
| private boolean inCDATA; |
| |
| public final Element getCurrentElement() { |
| return (Element) _nodeStk.peek(); |
| } |
| |
| /** |
| * Document object that owns the specified node. |
| */ |
| private final Document _document; |
| |
| /** |
| * @param node |
| * Nodes will be created and added under this object. |
| */ |
| public Dom2SaxAdapter(Node node) |
| { |
| _node = node; |
| _nodeStk.push(_node); |
| |
| if( node instanceof Document ) |
| this._document = (Document)node; |
| else |
| this._document = node.getOwnerDocument(); |
| } |
| |
| /** |
| * Creates a fresh empty DOM document and adds nodes under this document. |
| */ |
| public Dom2SaxAdapter() throws ParserConfigurationException { |
| DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance(); |
| factory.setNamespaceAware(true); |
| factory.setValidating(false); |
| |
| _document = factory.newDocumentBuilder().newDocument(); |
| _node = _document; |
| _nodeStk.push( _document ); |
| } |
| |
| public Node getDOM() { |
| return _node; |
| } |
| |
| public void startDocument() { |
| } |
| |
| public void endDocument(){ |
| } |
| |
| public void startElement(String namespace, String localName, String qName, Attributes attrs){ |
| |
| // some broken DOM implementatino (we confirmed it with SAXON) |
| // return null from this method. |
| Element element = _document.createElementNS(namespace, qName); |
| |
| if( element==null ) { |
| // if so, report an user-friendly error message, |
| // rather than dying mysteriously with NPE. |
| throw new TxwException("Your DOM provider doesn't support the createElementNS method properly"); |
| } |
| |
| // process namespace bindings |
| for( int i=0; i<unprocessedNamespaces.size(); i+=2 ) { |
| String prefix = (String)unprocessedNamespaces.get(i+0); |
| String uri = (String)unprocessedNamespaces.get(i+1); |
| |
| String qname; |
| if( "".equals(prefix) || prefix==null ) |
| qname = "xmlns"; |
| else |
| qname = "xmlns:"+prefix; |
| |
| // older version of Xerces (I confirmed that the bug is gone with Xerces 2.4.0) |
| // have a problem of re-setting the same namespace attribute twice. |
| // work around this bug removing it first. |
| if( element.hasAttributeNS("http://www.w3.org/2000/xmlns/",qname) ) { |
| // further workaround for an old Crimson bug where the removeAttribtueNS |
| // method throws NPE when the element doesn't have any attribute. |
| // to be on the safe side, check the existence of attributes before |
| // attempting to remove it. |
| // for details about this bug, see org.apache.crimson.tree.ElementNode2 |
| // line 540 or the following message: |
| // https://jaxb.dev.java.net/servlets/ReadMsg?list=users&msgNo=2767 |
| element.removeAttributeNS("http://www.w3.org/2000/xmlns/",qname); |
| } |
| // workaround until here |
| |
| element.setAttributeNS("http://www.w3.org/2000/xmlns/",qname, uri); |
| } |
| unprocessedNamespaces.clear(); |
| |
| |
| int length = attrs.getLength(); |
| for(int i=0;i<length;i++){ |
| String namespaceuri = attrs.getURI(i); |
| String value = attrs.getValue(i); |
| String qname = attrs.getQName(i); |
| element.setAttributeNS(namespaceuri, qname, value); |
| } |
| // append this new node onto current stack node |
| getParent().appendChild(element); |
| // push this node onto stack |
| _nodeStk.push(element); |
| } |
| |
| private final Node getParent() { |
| return (Node) _nodeStk.peek(); |
| } |
| |
| public void endElement(String namespace, String localName, String qName){ |
| _nodeStk.pop(); |
| } |
| |
| |
| public void characters(char[] ch, int start, int length) { |
| Node text; |
| if(inCDATA) |
| text = _document.createCDATASection(new String(ch, start, length)); |
| else |
| text = _document.createTextNode(new String(ch, start, length)); |
| getParent().appendChild(text); |
| } |
| |
| public void comment(char ch[], int start, int length) throws SAXException { |
| getParent().appendChild(_document.createComment(new String(ch,start,length))); |
| } |
| |
| |
| |
| public void ignorableWhitespace(char[] ch, int start, int length) { |
| } |
| |
| public void processingInstruction(String target, String data) throws org.xml.sax.SAXException{ |
| Node node = _document.createProcessingInstruction(target, data); |
| getParent().appendChild(node); |
| } |
| |
| public void setDocumentLocator(Locator locator) { |
| } |
| |
| public void skippedEntity(String name) { |
| } |
| |
| private ArrayList unprocessedNamespaces = new ArrayList(); |
| |
| public void startPrefixMapping(String prefix, String uri) { |
| unprocessedNamespaces.add(prefix); |
| unprocessedNamespaces.add(uri); |
| } |
| |
| public void endPrefixMapping(String prefix) { |
| } |
| |
| public void startDTD(String name, String publicId, String systemId) throws SAXException { |
| } |
| |
| public void endDTD() throws SAXException { |
| } |
| |
| public void startEntity(String name) throws SAXException { |
| } |
| |
| public void endEntity(String name) throws SAXException { |
| } |
| |
| public void startCDATA() throws SAXException { |
| inCDATA = true; |
| } |
| |
| public void endCDATA() throws SAXException { |
| inCDATA = false; |
| } |
| } |