aoqi@0: /*
aoqi@0:  * Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: /*
aoqi@0:  * Copyright (C) 2004-2011
aoqi@0:  *
aoqi@0:  * Permission is hereby granted, free of charge, to any person obtaining a copy
aoqi@0:  * of this software and associated documentation files (the "Software"), to deal
aoqi@0:  * in the Software without restriction, including without limitation the rights
aoqi@0:  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
aoqi@0:  * copies of the Software, and to permit persons to whom the Software is
aoqi@0:  * furnished to do so, subject to the following conditions:
aoqi@0:  *
aoqi@0:  * The above copyright notice and this permission notice shall be included in
aoqi@0:  * all copies or substantial portions of the Software.
aoqi@0:  *
aoqi@0:  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
aoqi@0:  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
aoqi@0:  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
aoqi@0:  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
aoqi@0:  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
aoqi@0:  * THE SOFTWARE.
aoqi@0:  */
aoqi@0: package com.sun.xml.internal.rngom.digested;
aoqi@0: 
aoqi@0: import org.w3c.dom.Attr;
aoqi@0: import org.w3c.dom.CDATASection;
aoqi@0: import org.w3c.dom.Comment;
aoqi@0: import org.w3c.dom.Document;
aoqi@0: import org.w3c.dom.DocumentFragment;
aoqi@0: import org.w3c.dom.Element;
aoqi@0: import org.w3c.dom.EntityReference;
aoqi@0: import org.w3c.dom.NamedNodeMap;
aoqi@0: import org.w3c.dom.Node;
aoqi@0: import org.w3c.dom.NodeList;
aoqi@0: import org.w3c.dom.ProcessingInstruction;
aoqi@0: import org.w3c.dom.Text;
aoqi@0: 
aoqi@0: import javax.xml.stream.XMLStreamException;
aoqi@0: import javax.xml.stream.XMLStreamWriter;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Printer of DOM to XML using StAX {@link XMLStreamWriter}.
aoqi@0:  *
aoqi@0:  * @author <A href="mailto:demakov@ispras.ru">Alexey Demakov</A>
aoqi@0:  */
aoqi@0: class DOMPrinter {
aoqi@0:     protected XMLStreamWriter out;
aoqi@0: 
aoqi@0:     public DOMPrinter(XMLStreamWriter out) {
aoqi@0:         this.out = out;
aoqi@0:     }
aoqi@0: 
aoqi@0:     public void print(Node node) throws XMLStreamException {
aoqi@0:         switch (node.getNodeType()) {
aoqi@0:         case Node.DOCUMENT_NODE:
aoqi@0:             visitDocument((Document) node);
aoqi@0:             break;
aoqi@0:         case Node.DOCUMENT_FRAGMENT_NODE:
aoqi@0:             visitDocumentFragment((DocumentFragment) node);
aoqi@0:             break;
aoqi@0:         case Node.ELEMENT_NODE:
aoqi@0:             visitElement((Element) node);
aoqi@0:             break;
aoqi@0:         case Node.TEXT_NODE:
aoqi@0:             visitText((Text) node);
aoqi@0:             break;
aoqi@0:         case Node.CDATA_SECTION_NODE:
aoqi@0:             visitCDATASection((CDATASection) node);
aoqi@0:             break;
aoqi@0:         case Node.PROCESSING_INSTRUCTION_NODE:
aoqi@0:             visitProcessingInstruction((ProcessingInstruction) node);
aoqi@0:             break;
aoqi@0:         case Node.ENTITY_REFERENCE_NODE:
aoqi@0:             visitReference((EntityReference) node);
aoqi@0:             break;
aoqi@0:         case Node.COMMENT_NODE:
aoqi@0:             visitComment((Comment) node);
aoqi@0:             break;
aoqi@0:         case Node.DOCUMENT_TYPE_NODE:
aoqi@0:             break;
aoqi@0:         case Node.ATTRIBUTE_NODE:
aoqi@0:         case Node.ENTITY_NODE:
aoqi@0:         default:
aoqi@0:             throw new XMLStreamException("Unexpected DOM Node Type "
aoqi@0:                 + node.getNodeType()
aoqi@0:             );
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitChildren(Node node)
aoqi@0:         throws XMLStreamException {
aoqi@0:         NodeList nodeList = node.getChildNodes();
aoqi@0:         if (nodeList != null) {
aoqi@0:             for (int i = 0; i < nodeList.getLength(); i++) {
aoqi@0:                 print(nodeList.item(i));
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitDocument(Document document)
aoqi@0:         throws XMLStreamException {
aoqi@0:         out.writeStartDocument();
aoqi@0:         print(document.getDocumentElement());
aoqi@0:         out.writeEndDocument();
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitDocumentFragment(DocumentFragment documentFragment)
aoqi@0:         throws XMLStreamException {
aoqi@0:         visitChildren(documentFragment);
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitElement(Element node)
aoqi@0:         throws XMLStreamException {
aoqi@0:         out.writeStartElement(node.getPrefix()
aoqi@0:             , node.getLocalName()
aoqi@0:             , node.getNamespaceURI()
aoqi@0:         );
aoqi@0:         NamedNodeMap attrs = node.getAttributes();
aoqi@0:         for (int i = 0; i < attrs.getLength(); i++) {
aoqi@0:             visitAttr((Attr) attrs.item(i));
aoqi@0:         }
aoqi@0:         visitChildren(node);
aoqi@0:         out.writeEndElement();
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitAttr(Attr node)
aoqi@0:         throws XMLStreamException {
aoqi@0:         String name = node.getLocalName();
aoqi@0:         if (name.equals("xmlns")) {
aoqi@0:             out.writeDefaultNamespace(node.getNamespaceURI());
aoqi@0:         } else {
aoqi@0:             String prefix = node.getPrefix();
aoqi@0:             if (prefix != null && prefix.equals("xmlns")) {
aoqi@0:                 out.writeNamespace(prefix, node.getNamespaceURI());
aoqi@0:             } else if (prefix != null) {
aoqi@0:                 out.writeAttribute(prefix
aoqi@0:                     , node.getNamespaceURI()
aoqi@0:                     , name
aoqi@0:                     , node.getNodeValue()
aoqi@0:                 );
aoqi@0:             } else {
aoqi@0:                 out.writeAttribute(node.getNamespaceURI()
aoqi@0:                         , name
aoqi@0:                         , node.getNodeValue());
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitComment(Comment comment) throws XMLStreamException {
aoqi@0:         out.writeComment(comment.getData());
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitText(Text node) throws XMLStreamException {
aoqi@0:         out.writeCharacters(node.getNodeValue());
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitCDATASection(CDATASection cdata) throws XMLStreamException {
aoqi@0:         out.writeCData(cdata.getNodeValue());
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitProcessingInstruction(ProcessingInstruction processingInstruction)
aoqi@0:         throws XMLStreamException {
aoqi@0:         out.writeProcessingInstruction(processingInstruction.getNodeName()
aoqi@0:             , processingInstruction.getData()
aoqi@0:         );
aoqi@0:     }
aoqi@0: 
aoqi@0:     protected void visitReference(EntityReference entityReference)
aoqi@0:         throws XMLStreamException {
aoqi@0:         visitChildren(entityReference);
aoqi@0:     }
aoqi@0: }