Java XML Attribute Get getAttribute(Element parent, String localName, String namespaceURI)

Description

Returns the value of the named attribute of the current element.

License

Apache License

Parameter

Parameter	Description
parent	a parameter
localName	attribute local name or 'nodeName' if no namespace is specified.
namespaceURI	or <code>null</code>

Return

attribute value, or null if not found

Declaration

public static String getAttribute(Element parent, String localName, String namespaceURI) 

Method Source Code

//package com.java2s;
/*//from ww  w .  j av  a  2 s. c om
 * 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.Element;

public class Main {
    /**
     * Returns the value of the named attribute of the current element.
     *
     * @param parent
     * @param localName attribute local name or 'nodeName' if no namespace is
     * specified.
     * @param  namespaceURI or <code>null</code>
     * @return attribute value, or <code>null</code> if not found
     */
    public static String getAttribute(Element parent, String localName, String namespaceURI) {
        if (parent == null) {
            return null;
        }
        Attr attribute;
        if (namespaceURI == null) {
            attribute = parent.getAttributeNode(localName);
        } else {
            attribute = parent.getAttributeNodeNS(namespaceURI, localName);
        }
        if (attribute != null) {
            return attribute.getValue();
        } else {
            return null;
        }
    }
}

Related

1. getAttribute(Element element, String name, String defaultVal)
2. getAttribute(Element element, String namespace, String name)
3. getAttribute(Element element, String nodeName)
4. getAttribute(Element ownerElem, String attrName)
5. getAttribute(Element parent, String localName)
6. getAttribute(File file, String attr)
7. getAttribute(final List elements, final int index)
8. getAttribute(final Node iNode, final String iAttributeName)
9. getAttribute(final Node n, final String attrName, final String defaultValue)