Java XML Child Node Get getChildNodeWithName(Node node, String name, String namespaceURI)

Description

get Child Node With Name

License

Open Source License

Declaration

public static Node getChildNodeWithName(Node node, String name, String namespaceURI) 

Method Source Code

//package com.java2s;
/*/*  w w w  .j  av  a  2  s.c om*/
   Linguine Maps Programmatic Visualization Library
   Copyright (C) 2005 Pavel Simakov
   http://www.softwaresecretweapons.com
       
   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 java.util.ArrayList;
import java.util.List;

import org.w3c.dom.Node;

public class Main {
    public static Node getChildNodeWithName(Node node, String name) {
        return getChildNodeWithName(node, name, null);
    }

    public static Node getChildNodeWithName(Node node, String name, String namespaceURI) {
        List all = getChildNodesWithName(node, name, namespaceURI);

        if (all.size() > 1) {
            throw new IllegalArgumentException("Expected only one node " + name + " for " + node);
        }

        if (all.size() > 0) {
            return (Node) all.get(0);
        }
        return null;
    }

    public static List getChildNodesWithName(Node node, String name) {
        return getChildNodesWithName(node, name, null);
    }

    public static List getChildNodesWithName(Node node, String name, String namespace) {
        List all = new ArrayList();
        for (int i = 0; i < node.getChildNodes().getLength(); i++) {
            Node child = node.getChildNodes().item(i);
            if (nodeHasNameNamespace(child, name, namespace)) {
                all.add(child);
            }
        }

        return all;
    }

    public static boolean nodeHasNameNamespace(Node node, String name, String namespaceURI) {
        String localName = node.getNodeName();

        String pre = node.getPrefix();
        if (pre != null) {
            localName = localName.substring(pre.length() + 1);
        }

        if (namespaceURI != null) {
            if (!namespaceURI.equals(node.getNamespaceURI())) {
                return false;
            }
        }

        return name.equals(localName);
    }
}

Related

1. getChildNodeValue(Element root, String childNodeName, String defaultValue)
2. getChildNodeValue(Node node, String elementName)
3. getChildNodeValue(Node root, String childName, boolean emptyStringOnMissingChild)
4. getChildNodeValue(String childNodeName, Node n)
5. getChildNodeValueByName(Node parent, String nodeName)
6. getChildNodeWithName(String name, Node n)
7. getChildNodeWithTag(Node node, String nodeTag)