/*

* Copyright (c) 2002 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: 

*     Recent list reader

*

*/

#ifndef __Logs_Engine_CLogsRecentReader_H__

#define __Logs_Engine_CLogsRecentReader_H__

//  INCLUDES

#include "CLogsBaseReader.h"

// FORWARD DECLARATION

// CLASS DECLARATION

class CLogsClearDuplicates;

class CLogFilter;

class CLogViewRecent;

class CLogViewDuplicate;

class MLogsEventArray;

/**

 *  Recent list reader

 */

class CLogsRecentReader : public CLogsBaseReader

    {

    public:

        /**

         *  Two phase constructor

         *

         *  @param aFsSession   ref. to file server session

         *  @param aEventArray  array of events

         *  @param aStrings     log client constants

         *  @param aModel       model id

         *  @param aObserver    observer

         */

        static CLogsRecentReader* NewL

                                (   RFs& aFsSession

                                ,   MLogsEventArray& aEventArray

                                ,   TLogsEventStrings& aStrings

                                ,   TLogsModel aModel

                                ,   MLogsObserver* aObserver

                                ,   CLogsEngine* aLogsEngineRef

                                );

       /**

        *   Destructor.

        */

        virtual ~CLogsRecentReader();

    private:

       /**

        *  Default constructor

        */

        CLogsRecentReader();

        /**

         *  Constructor

         *

         *  @param aFsSession   ref. to file server session

         *  @param aEventArray  array of events

         *  @param aStrings     log client constants

         *  @param aModel       model id

         *  @param aObserver    observer

         */

        CLogsRecentReader(  RFs& aFsSession

                         ,  MLogsEventArray& aEventArray

                         ,  TLogsEventStrings& aStrings

                         ,  TLogsModel aModel

                         ,  MLogsObserver* aObserver

                         ,  CLogsEngine* aLogsEngineRef

                         );

        /**

         *  Second phase constructor

         */

        void ConstructL();

    private:  // from CLogsBaseReader 

        TInt ViewCountL() const;

        CLogEvent& Event() const;

        TBool DoNextL();        

        TInt DuplicateCountL() const;

        void ReadingFinishedL();

        void ConstructEventL( MLogsEvent& aDest, const CLogEvent& aSource );

    protected: // From CActive

        void DoCancel();

    public: // from MLogsReader

        void Stop();

        void StartL();

        void ConfigureL( const MLogsReaderConfig* aConfig );

        void ClearDuplicatesL();

        void ActivateL();

        void DeActivate();

    private: // data

        /// Own: View to filtered events.

        CLogViewRecent*         iLogViewRecent;

        /// Own: Recent duplicate view    

        CLogViewDuplicate*      iDuplicateView;

        /// Own: duplicate filter, excludes all "seen" events

        CLogFilter*             iDuplicateFilter;

        /// Own: clear duplicates flag for better performance

        TBool                   iDuplicates;

        /// Own:

        CLogsClearDuplicates*   iClearDuplicates;

        // TBool                   iSkipClearDuplicates;

    };

#endif      // __Logs_Engine_CLogsRecentReader_H__

// End of File