Java XML Document Clone deepCloneDocument(Document doc, DOMImplementation impl)

Description

Deep clones a document using the given DOM implementation.

License

Apache License

Declaration

public static Document deepCloneDocument(Document doc,
        DOMImplementation impl) 

Method Source Code

//package com.java2s;
/*/*from  w w  w .  j  a va 2s.c o  m*/

 Licensed to the Apache Software Foundation (ASF) under one or more
 contributor license agreements.  See the NOTICE file distributed with
 this work for additional information regarding copyright ownership.
 The ASF licenses this file to You under the Apache License, Version 2.0
 (the "License"); you may not use this file except in compliance with
 the License.  You may obtain a copy of the License at

 http://www.apache.org/licenses/LICENSE-2.0

 Unless required by applicable law or agreed to in writing, software
 distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.

 */

import org.w3c.dom.Attr;

import org.w3c.dom.DOMImplementation;
import org.w3c.dom.Document;

import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;

public class Main {
    /**
     * Deep clones a document using the given DOM implementation.
     */
    public static Document deepCloneDocument(Document doc,
            DOMImplementation impl) {
        Element root = doc.getDocumentElement();
        Document result = impl.createDocument(root.getNamespaceURI(),
                root.getNodeName(), null);
        Element rroot = result.getDocumentElement();
        boolean before = true;
        for (Node n = doc.getFirstChild(); n != null; n = n
                .getNextSibling()) {
            if (n == root) {
                before = false;
                if (root.hasAttributes()) {
                    NamedNodeMap attr = root.getAttributes();
                    int len = attr.getLength();
                    for (int i = 0; i < len; i++) {
                        rroot.setAttributeNode((Attr) result.importNode(
                                attr.item(i), true));
                    }
                }
                for (Node c = root.getFirstChild(); c != null; c = c
                        .getNextSibling()) {
                    rroot.appendChild(result.importNode(c, true));
                }
            } else {
                if (n.getNodeType() != Node.DOCUMENT_TYPE_NODE) {
                    if (before) {
                        result.insertBefore(result.importNode(n, true),
                                rroot);
                    } else {
                        result.appendChild(result.importNode(n, true));
                    }
                }
            }
        }
        return result;
    }
}

Related

1. copyDocumentNode(Node source, Document target)
2. copyDomDocument(Document originalDomDoc)
3. copyElement(Element orig, Document newOwner, Set blankTextNodes)
4. copyNode(Document new_doc, Node node)
5. copyNode(final Document newDoc, final Node node)
6. deepCopyDocument(Document ttml, File target)