Mega Code Archive
Find All Elements By Tag Name Name Space
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/**
* 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 java.util.LinkedList;
import java.util.List;
import javax.xml.namespace.QName;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* Few simple utils to read DOM. This is originally from the Jakarta Commons
* Modeler.
*
* @author Costin Manolache
*/
public class Utils {
public static List<Element> findAllElementsByTagNameNS(Element elem, String nameSpaceURI,
String localName) {
List<Element> ret = new LinkedList<Element>();
findAllElementsByTagNameNS(elem, nameSpaceURI, localName, ret);
return ret;
}
private static void findAllElementsByTagName(Element el, String tagName, List<Element> elementList) {
if (tagName.equals(el.getTagName())) {
elementList.add(el);
}
Element elem = getFirstElement(el);
while (elem != null) {
findAllElementsByTagName(elem, tagName, elementList);
elem = getNextElement(elem);
}
}
private static void findAllElementsByTagNameNS(Element el, String nameSpaceURI, String localName,
List<Element> elementList) {
if (localName.equals(el.getLocalName()) && nameSpaceURI.contains(el.getNamespaceURI())) {
elementList.add(el);
}
Element elem = getFirstElement(el);
while (elem != null) {
findAllElementsByTagNameNS(elem, nameSpaceURI, localName, elementList);
elem = getNextElement(elem);
}
}
public static Element getFirstElement(Node parent) {
Node n = parent.getFirstChild();
while (n != null && Node.ELEMENT_NODE != n.getNodeType()) {
n = n.getNextSibling();
}
if (n == null) {
return null;
}
return (Element) n;
}
public static Element getNextElement(Element el) {
Node nd = el.getNextSibling();
while (nd != null) {
if (nd.getNodeType() == Node.ELEMENT_NODE) {
return (Element) nd;
}
nd = nd.getNextSibling();
}
return null;
}
}
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