Java tutorial
//package com.java2s; /* * This file is part of the PDF Split And Merge source code * Created on 13/dic/2011 * Copyright 2011 by Andrea Vacondio (andrea.vacondio@gmail.com). * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ import org.w3c.dom.Node; public class Main { /** * @param node * @param attributeName * @return the String value of the given attributeName for the given node. null if the attributeName is not found or the input node is null. */ public static String nullSafeGetStringAttribute(Node node, String attributeName) { if (node != null) { Node namedItem = node.getAttributes().getNamedItem(attributeName); if (namedItem != null) { return namedItem.getNodeValue(); } } return null; } }