Java File Extension Name Extract getFileExtensionIgnoringGz(File f)

Description

get File Extension Ignoring Gz

License

Open Source License

Declaration

public static String getFileExtensionIgnoringGz(File f) 

Method Source Code

//package com.java2s;
/*/*  w w w.  j av  a  2 s .  c  o m*/
 * FindBugs - Find Bugs in Java programs
 * Copyright (C) 2006, University of Maryland
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

import java.io.File;

public class Main {
    public static String getFileExtensionIgnoringGz(File f) {

        String name = f.getName().toLowerCase();
        if (name.endsWith(".gz")) {
            name = name.substring(0, name.length() - 3);
        }
        return getFileExtension(name);
    }

    private static String getFileExtension(String name) {
        int lastDot = name.lastIndexOf('.');
        if (lastDot == -1) {
            return "";
        }
        return name.substring(lastDot + 1);
    }

    public static String getFileExtension(File f) {
        return getFileExtension(f.getName().toLowerCase());
    }
}

Related

1. getFileExtension(final String filenamePath)
2. getFileExtension(String fileName)
3. getFileExtension(String filename)
4. getFileExtension(String filename, String extensionSeparator)
5. getFileExtension(String filePath)