/*

 * Copyright 2008-2009 Sun Microsystems, Inc.  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.  Sun designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

 * CA 95054 USA or visit www.sun.com if you need additional information or

 * have any questions.

 */

package sun.nio.fs;

/**

 * Represents an entry in the mount table.

 */

class UnixMountEntry {

    private byte[] name;        // file system name

    private byte[] dir;         // directory (mount point)

    private byte[] fstype;      // ufs, nfs, ...

    private byte[] opts;        // mount options

    private long dev;           // device ID

    private volatile String fstypeAsString;

    private volatile String optionsAsString;

    UnixMountEntry() {

    }

    String name() {

        return new String(name);

    }

    String fstype() {

        if (fstypeAsString == null)

            fstypeAsString = new String(fstype);

        return fstypeAsString;

    }

    byte[] dir() {

        return dir;

    }

    long dev() {

        return dev;

    }

    /**

     * Tells whether the mount entry has the given option.

     */

    boolean hasOption(String requested) {

        if (optionsAsString == null)

            optionsAsString = new String(opts);

        for (String opt: optionsAsString.split("\\,", 0)) {

            if (opt.equals(requested))

                return true;

        }

        return false;

    }

    // generic option

    boolean isIgnored() {

        return hasOption("ignore");

    }

    // generic option

    boolean isReadOnly() {

        return hasOption("ro");

    }

}