Here you can find the source of getIntegerAttribute(Node n, String attributeName)
public static Integer getIntegerAttribute(Node n, String attributeName)
//package com.java2s; /* ======================================================================== * Copyright (c) 2005-2015 The OPC Foundation, Inc. All rights reserved. * * OPC Foundation MIT License 1.00//from ww w . jav a 2 s .c o m * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following * conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * The complete license agreement can be found here: * http://opcfoundation.org/License/MIT/1.00/ * ======================================================================*/ import org.w3c.dom.Node; public class Main { public static Integer getIntegerAttribute(Node n, String attributeName) { Node attrib = n.getAttributes().getNamedItem(attributeName); if (attrib == null) return null; String value = attrib.getNodeValue(); assert (value != null); return new Integer(value); } }