Main.java Source code

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Here is the source code for Main.java

Source

//package com.java2s;
/*
 * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

import org.w3c.dom.EntityReference;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import org.w3c.dom.Text;

public class Main {
    public static String getTextForNode(Node node) {
        StringBuilder sb = new StringBuilder();

        NodeList children = node.getChildNodes();
        if (children.getLength() == 0)
            return null;

        for (int i = 0; i < children.getLength(); ++i) {
            Node n = children.item(i);

            if (n instanceof Text)
                sb.append(n.getNodeValue());
            else if (n instanceof EntityReference) {
                String s = getTextForNode(n);
                if (s == null)
                    return null;
                else
                    sb.append(s);
            } else
                return null;
        }

        return sb.toString();
    }
}