1 /*

     2 * Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: MediaIdUpdater

    15 *

    16 */

    17 

    18 

    19 #ifndef MEDIAIDUPDATER_H

    20 #define MEDIAIDUPDATER_H

    21 

    22 #include <string>

    23 #include <set>

    24 

    25 namespace java

    26 {

    27 namespace storage

    28 {

    29     class JavaStorage;

    30 }

    31 namespace backup

    32 {

    33 

    34 /**

    35 * MediaIdUpdater is responsible for ensuring that java storage contains

    36 * valid media ids after restore.

    37 * Media id may change in following situations:

    38 *   - memory card is formatted between backup and restore

    39 *   - another memory card is used during restore than originally

    40 */

    41 

    42 class MediaIdUpdater

    43 {

    44 public:

    45     MediaIdUpdater();

    46     virtual ~MediaIdUpdater();

    47 

    48     /**

    49     * Updates media ids to valid values if needed

    50     * Note: this method must be called after java storage is restored

    51     */

    52     virtual void update();

    53 

    54 protected:

    55     virtual std::set<std::wstring> getPresentMediaIds();

    56     virtual std::set<std::wstring> getPresentRemovableDriveMediaIds();

    57     virtual std::set<std::wstring> removePresentMediaIds(const std::set<std::wstring>& aStorageIds,

    58                                                          const std::set<std::wstring>& aPresentIds);

    59     virtual bool isMediaIdUpdateNeeded(const std::set<std::wstring>& aInvalidIds,

    60                                        const std::set<std::wstring>& aValidIds);

    61     virtual std::set<std::wstring> getMediaIdsFromStorage();

    62     virtual void updateMediaIds(const std::set<std::wstring>& aInvalidIds,

    63                                 const std::set<std::wstring>& aValidIds);

    64 

    65     virtual void open();

    66     virtual void close();

    67 

    68     java::storage::JavaStorage* mStorage;

    69 };

    70 

    71 } // namespace backup

    72 } // namespace java

    73 

    74 #endif // MEDIAIDUPDATER_H