描述
replace XML Element
例子
/**/*from ww w .2 1do c. n et*/
* Copyright 2012 Sven Ewald
*
* Licensed 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 java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Comparator;
import java.util.HashMap;
import java.util.Iterator;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import javax.xml.XMLConstants;
import org.w3c.dom.Attr;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.NamedNodeMap;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;
public class Main{
/**
* @param previous
* @param newNode
*/
public static void replaceElement(final Element previous,
final Element newNode) {
assert previous.getParentNode() != null;
Element parent = (Element) previous.getParentNode();
Document document = getOwnerDocumentFor(parent);
ensureOwnership(document, newNode);
parent.replaceChild(newNode, previous);
}
/**
* @param documentOrElement
* @return document that owns the given node
*/
public static Document getOwnerDocumentFor(final Node documentOrElement) {
if (Node.DOCUMENT_NODE == documentOrElement.getNodeType()) {
return (Document) documentOrElement;
}
return documentOrElement.getOwnerDocument();
}
/**
* @param ownerDocument
* @param node
*/
public static void ensureOwnership(final Document ownerDocument,
final Node node) {
if (ownerDocument != node.getOwnerDocument()) {
ownerDocument.adoptNode(node);
}
}
}