/*

* Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  LinuxFileSystemUtils

 *

*/

#include <errno.h>

#include <sys/statvfs.h>

#include <sys/stat.h>

#include <string>

#include <stdlib.h>

#include "javajniutils.h"

#include "javacommonutils.h"

#include "logger.h"

#include "fileutilities.h"

#include "linuxfilesystemutils.h"

using namespace std;

using namespace java::fileutils;

using namespace java::util;

/*

 * Implementation of LinuxFileSystemUtils.h

 *

 */

unsigned long LinuxFileSystemUtils::getAvailableSize(const char* aPath)

{

    JELOG2(EJavaFile);

    struct statvfs fiData;

    int result = statvfs(aPath, &fiData);

    if (result < 0)

    {

        ELOG1(EJavaFile,

              "  LinuxFileSystemUtils::GetAvailableSize(): Error %d ", errno);

        int error = errno;

        throw error;

    }

    return (fiData.f_bfree * fiData.f_bsize);

}

unsigned long LinuxFileSystemUtils::getUsedSize(const char* aPath)

{

    JELOG2(EJavaFile);

    struct statvfs fsData;

    int result = statvfs(aPath, &fsData);

    if (result < 0)

    {

        ELOG1(EJavaFile, "  LinuxFileSystemUtils::GetUsedSize(): Error %d ",

              errno);

        int error = errno;

        throw error;

    }

    return ((fsData.f_blocks - fsData.f_bfree) * fsData.f_bsize);

}

unsigned long LinuxFileSystemUtils::getTotalSize(const char* aPath)

{

    JELOG2(EJavaFile);

    struct statvfs fsData;

    int result = statvfs(aPath, &fsData);

    if (result < 0)

    {

        ELOG1(EJavaFile, "  LinuxFileSystemUtils::GetTotalSize(): Error %d ",

              errno);

        int error = errno;

        throw error;

    }

    return (fsData.f_blocks * fsData.f_frsize);

}

bool LinuxFileSystemUtils::isHidden(const char* aFile)

{

    //Files in Linux are hidden if they have a "." as a prefix.

    //We need to search for "/." in the file name to confirm. Simple. Or is it?

    JELOG2(EJavaFile);

    std::string name(aFile);

    int lastIndex = name.find_last_of('/') ;

    if (name.at(lastIndex+1) == '.')

    {

        return true;

    }

    return false;

}

int LinuxFileSystemUtils::setHidden(const char* /*aFile*/, const bool /*aHide*/)

{

    return 0;

}

string LinuxFileSystemUtils::listRoots()

{

    string retValue(getenv("HOME"));

    return retValue;

}