/*

* Copyright (c) 2006-2009 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:  Monitors file creations, modifications and deletions.*

*/

#ifndef __FILEEVENTHANDLERAO_H__

#define __FILEEVENTHANDLERAO_H__

#include <e32base.h>

#include <f32file.h>

#include "movetimer.h"

#include "mdsfileserverpluginclient.h"

#include <harvesterdata.h>

// FORWARD DECLARATION

class CMdEHarvesterSession;

class CProcessOriginMapper;

class CMdEObject;

class CMdEPropertyDef;

class CFolderRenamer;

class CHarvesterPluginFactory;

class CMdsFSPQueueItem;

class CFileEventHandlerAO : public CActive, public MMoveTimerObserver

    {

    public:

    	enum TRequest

    		{

    		ERequestIdle,

    		ERequestProcessing

    		};

        /**

        * Creates and constructs a new instance of CFileEventHandlerAO.

        *

        * @return A pointer to the new instance of CFileEventHandlerAO

        */

        static CFileEventHandlerAO* NewL( MMonitorPluginObserver& aObserver,

        		CMdEHarvesterSession* aMdeSession,

        		CHarvesterPluginFactory* aHarvesterPluginFactory );

        /**

        * Destructor

        */

        virtual ~CFileEventHandlerAO();

        /**

        * Inherited from CActive. This method will be called on file server notifying.

        */

        void RunL();

        /**

        * Handles a leave occurring in the request completion event handler RunL().

        *

        * @param aError  An error code.

        * @return An error code.

        */

        TInt RunError( TInt aError );

        /**

        * Cancels file server notifying. Inherited from CActive.

        */

        void DoCancel();

        /**

         * Gets a reference to process / origin mapper, which

         * can be used to register and match which process ids

         * with a mde object's Origin value.

         * @return Handle to File monitor's CProcessOriginMapper.

         */

        CProcessOriginMapper& Mapper();

        /**

         * Notifies file monitor about new events

         */

        void HandleNotificationL(TMdsFSPStatus &aEvent);         

        /**

         * Notifies file monitor about multiple delete events

         */

        void HandleMultideletionL( CArrayFixSeg< TMdsFSPStatus >* aEvents );     

        /**

         * @Returns filemonitors mde session

         * @return mde session object

         */

        CMdEHarvesterSession * MdeHarvesterSession();          

        void AddToQueueL(TMdsFSPStatus &aEvent);

        void SetCachingStatus( TBool aCachingStatus );

    private:

        /**

        * C++ constructor - not exported;

        * implicitly called from NewL()

        */

        CFileEventHandlerAO();

        /**

        * 2nd phase construction, called by NewL()

        */

        void ConstructL( MMonitorPluginObserver& aObserver,

        		CMdEHarvesterSession* aMdeSession,

        		CHarvesterPluginFactory* aHarvesterPluginFactory );

        /**

         * 

         */

        void ResetEvent();

        void NotMoveEvent(RPointerArray<CHarvesterData>& aHDArray);

        /**

         * 

         */

        void RenameToMDEL( const TDesC& aOldUrl, const TDesC& aNewUrl, TOrigin aOrigin );

        /**

         * 

         */

        void ReplaceL( const TDesC& aOldUrl, const TDesC& aNewUrl, TOrigin aOrigin, TBool aFastHarvest );

        /**

         * 

         */

        void ModifyL( const TDesC& aUrl, TOrigin aOrigin, TBool aFastHarvest );

        /**

         * 

         */

        void DeleteFromMDEL( const TDesC& aUrl );

        /**

         * 

         */

        void MultiDeleteFromMDEL( const RPointerArray<TDesC>& aUrls );

        /**

         * 

         */

        void FormatL( TUint32 aOldMediaId, TBool aSubClose );

        /**

         * 

         */

        TOrigin OriginFromMdEObjectL( CMdEObject& aObject );

        /**

         * 

         */

        void OriginToMdEObjectL( CMdEObject& aObject, TOrigin aOrigin );

        void SetNextRequest( TRequest aRequest );

        void ReadCacheSizeFromCenrepL();

        /**

        */

       void SetTitleL( CMdEObject* aOldObject, const TDesC& aNewUrl );

       void SetModifiedTimeL( CMdEObject* aOldObject, const TDesC& aNewUrl );

    private:

        /**

         * @var An observer class to notify about file creations, modifications and deletions.

         */

    	MMonitorPluginObserver* iObserver;

        /**

         * @var A file server.

         */

        RFs iFs;

        /**

         * 

         */

        TMdsFSPStatusPckg iStatusPckg;

        /**

         * @var Mde client session pointer.

         */

        CMdEHarvesterSession* iMdeSession;

        /**

         * Process id / origin mapper.

         */

        CProcessOriginMapper* iMapper;

        /**

         * MoveTimer to check if move is coming...

         */

        CMoveTimer* iMoveTimer;

        /**

         * Active object which is used to handle folder rename events

         * 

         */

        CFolderRenamer *iFolderRenamer;

        /**

         * @var Harvester plugin factory pointer.

         */

        CHarvesterPluginFactory* iHarvesterPluginFactory;

        RPointerArray<CMdsFSPQueueItem> iQueue;

        TRequest iNextRequest;

        TBool iCacheEvents;

        TMdsFSPStatus iEvent;

        CArrayFixSeg< TMdsFSPStatus >* iEventArray;

        RPointerArray<TDesC> iUriArray;

        TInt iCacheSize;

        CMdEPropertyDef* iOriginPropertyDef;

        CMdEPropertyDef* iTitlePropertyDef;

        CMdEPropertyDef* iTimePropertyDef;

    };

#endif // __FILEEVENTHANDLERAO_H__