Java XML First Child Element getFirstChildElementNS(Element elm, String tns, String localName)

Description

get First Child Element NS

License

Open Source License

Declaration

public static Element getFirstChildElementNS(Element elm, String tns, String localName) 

Method Source Code

//package com.java2s;
/**//from   ww w. jav  a 2 s . c  om
 * Copyright (c) 2012-2013 Reficio (TM) - Reestablish your software!. All Rights Reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301  USA
 */

import org.w3c.dom.*;

public class Main {
    public static Element getFirstChildElementNS(Element elm, String tns, String localName) {
        if (tns == null && localName == null)
            return getFirstChildElement(elm);

        if (tns == null || tns.length() == 0)
            return getFirstChildElement(elm, localName);

        NodeList nl = elm.getChildNodes();
        for (int c = 0; c < nl.getLength(); c++) {
            Node node = nl.item(c);
            if (node.getNodeType() != Node.ELEMENT_NODE)
                continue;

            if (localName == null && tns.equals(node.getNamespaceURI()))
                return (Element) node;

            if (localName != null && tns.equals(node.getNamespaceURI()) && localName.equals(node.getLocalName()))
                return (Element) node;
        }

        return null;
    }

    public static Element getFirstChildElement(Element elm) {
        return getFirstChildElement(elm, null);
    }

    public static Element getFirstChildElement(Element elm, String name) {
        if (elm == null)
            return null;

        NodeList nl = elm.getChildNodes();
        for (int c = 0; c < nl.getLength(); c++) {
            Node node = nl.item(c);
            if (node.getNodeType() == Node.ELEMENT_NODE && (name == null || node.getNodeName().equals(name)))
                return (Element) node;
        }

        return null;
    }
}

Related

1. getFirstChildElementByTagName(Element element, String name)
2. getFirstChildElementByTagName(Node element, String tagName)
3. getFirstChildElementCaseInsensitive(Element root, String elementName)
4. getFirstChildElementInternal(final Node node, final boolean useNamespaces, final String namespaceURI, final String localName)
5. getFirstChildElementNode(Node node)
6. getFirstChildElementNS(Node parent, String uri)
7. getFirstChildElementNS(Node parent, String[][] elemNames)
8. getFirstChildElementOfName(@Nonnull final Node aStartNode, @Nullable final String sName)
9. getFirstChildElementsByTagName( Node contextNode, String elementName)