com.github.stephenc.javaisotools.rockridge.impl.POSIXFileModesFactory Maven / Gradle / Ivy

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/*
 * Copyright (c) 2010. Stephen Connolly.
 * Copyright (C) 2007. Jens Hatlak 
 *
 * 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 */

package com.github.stephenc.javaisotools.rockridge.impl;

public class POSIXFileModesFactory {

    public static int USER_READ = 0400;
    public static int USER_WRITE = 0200;
    public static int USER_EXEC = 0100;
    public static int GROUP_READ = 040;
    public static int GROUP_WRITE = 020;
    public static int GROUP_EXEC = 010;
    public static int OTHER_READ = 04;
    public static int OTHER_WRITE = 02;
    public static int OTHER_EXEC = 01;
    public static int SETUID = 04000;
    public static int SETGID = 02000;
    public static int ENFORCE_FILE_LOCKING = 02000;
    public static int SAVE_SWAPPED_AFTER_USE = 01000;
    public static int SOCKET = 0140000;
    public static int SYMLINK = 0120000;
    public static int REGULAR = 0100000;
    public static int BLOCK_SPECIAL = 060000;
    public static int CHAR_SPECIAL = 020000;
    public static int DIRECTORY = 040000;
    public static int PIPE_FIFO = 010000;
    private int fileMode;

    public POSIXFileModesFactory() {
        init();
    }

    public void init() {
        fileMode = 0; // no permissions
    }

    public void initType() {
        // Clear all but lower 4 octal digits
        fileMode &= 07777;
    }

    public void setDefault(boolean isDirectory) {
        init();

        // u+rw,go+r
        setPermission(USER_READ);
        setPermission(USER_WRITE);
        setPermission(GROUP_READ);
        setPermission(OTHER_READ);

        if (isDirectory) {
            setPermission(DIRECTORY);
            // a+x
            setPermission(USER_EXEC);
            setPermission(GROUP_EXEC);
            setPermission(OTHER_EXEC);
        } else {
            setPermission(REGULAR);
        }
    }

    public void setFile() {
        initType();
        setPermission(REGULAR);
    }

    public void setSymlink() {
        initType();
        setPermission(SYMLINK);
    }

    public void setDirectory() {
        initType();
        setPermission(DIRECTORY);
    }

    public void setUID() {
        setPermission(SETUID);
    }

    public void setGID() {
        setPermission(SETGID);
    }

    public void setPermission(int permission) {
        fileMode |= permission;
    }

    public void clearPermission(int permission) {
        fileMode &= ~permission;
    }

    public int getFileMode() {
        return fileMode;
    }
}