1 /*

     2 * Copyright (c) 2006-2009 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:  Implements queue that the Harvester server reads*

    15 */

    16 

    17 #ifndef __CHARVESTERQUEUE__

    18 #define __CHARVESTERQUEUE__

    19 

    20 #include <monitorplugin.h>

    21 #include "harvestermediaidutil.h"

    22 

    23 // FORWARD DECLARATION

    24 class CHarvesterAO;

    25 class CHarvesterBlacklist;

    26 class CRestoreWatcher;

    27 

    28 class CHarvesterQueue : public CBase, 

    29                         public MMonitorPluginObserver

    30     {

    31 

    32     public:

    33     

    34         /**

    35          * Constructs a new harvester queue

    36          *

    37          * @return  Harvester server queue implementation

    38          */

    39         static CHarvesterQueue* NewL( CHarvesterAO* aHarvesterAO,

    40         		CHarvesterBlacklist* aBlacklist );

    41 

    42         /**

    43          * Constructs a new harvester queue implementation and leaves the queue implementation

    44          * in the cleanup stack.

    45          *

    46          * @return  Harvester server queue implementation

    47          */

    48         static CHarvesterQueue* NewLC( CHarvesterAO* aHarvesterAO,

    49         		CHarvesterBlacklist* aBlacklist );

    50 

    51         /**

    52          * Destructor

    53          */         

    54         virtual ~CHarvesterQueue();

    55 

    56         /**

    57          * ConstructL

    58          */     

    59         void ConstructL();

    60        

    61         /**

    62          * ItemsInQueue

    63          * @return Number of items in the server queue

    64          */ 

    65         TInt ItemsInQueue();

    66         

    67         /**

    68          * Gets next item in the Harvester server queue

    69          * @returns The next item from the queue (FIFO)

    70          */         

    71         CHarvesterData* GetNextItem();

    72         

    73         /**

    74          * Adds a item to the end of the queue

    75          * @param aItem  Item to be added to the queue

    76          */         

    77         void Append( CHarvesterData* aItem );

    78         

    79         /**

    80          * Derived from MMonitorPluginObserver - for getting new items to harvest

    81          * @param aHarvesterData  data type which contains information needed by harvester

    82          */   

    83         void MonitorEvent( CHarvesterData* aHarvesterData );

    84         

    85         /**

    86          * Derived from MMonitorPluginObserver - for getting new items to harvest

    87          * @param aHarvesterData  array of data type which contains information needed by harvester

    88          */   

    89         void MonitorEvent( RPointerArray<CHarvesterData>& aHarvesterData );

    90         

    91         /**

    92          * Remove items from harvesting queue

    93          */

    94         TUint RemoveItems(TUint32 aMediaId);

    95         

    96     private:

    97         /**

    98          * Constructor

    99          */             

   100         CHarvesterQueue( CHarvesterAO* aHarvesterAO, CHarvesterBlacklist* aBlacklist );

   101         

   102     private:

   103    

   104         /**

   105         * Array which holds the details of the available plugins - filled during startup

   106         */

   107         RPointerArray<CHarvesterData> iItemQueue;

   108      

   109         /** Pointer to harvester active object */

   110         CHarvesterAO* iHarvesterAO;

   111 

   112         /** Pointer to harvester blacklisting */

   113         CHarvesterBlacklist* iBlacklist;

   114 

   115         RFs iFs;

   116         

   117         TVolumeInfo iVolInfo;

   118         

   119         // not own

   120         CHarvesterMediaIdUtil* iMediaIdUtil;

   121     };

   122 

   123 #endif