/** @file

* Copyright (c) 2005-2006 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:  

*

*/

#ifndef C_CUPNPTRANSFERCONTROLLER_H

#define C_CUPNPTRANSFERCONTROLLER_H

//  INCLUDES

#include <e32std.h>

#include "upnpnotifytimer.h"

#include "upnperrors.h"

#include "upnpfiletransfer.h"

#include "upnpfiletransfertimerobserver.h"

// FORWARD DECLARATIONS

class CUpnpContentDirectory;

class CUpnpFileTransferEvent;

class CUpnpHttpMessage;

/**

*  This is a class controlling upload and downloads

*

*  @lib ContentDirectory

*  @since Series 60 2.6

*/

class CUpnpTransferController: public CBase, public MUpnpFileTransferTimerObserver

{

public: // Constructors and destructors

    /**

    * Two-phased constructor 

    * @since Series60 2.6

    * @param aService Parent service 

    */

    static CUpnpTransferController* NewL( CUpnpContentDirectory* aCd );

    /**

    * Destructor.

    */

    virtual ~CUpnpTransferController();

     /**

    * This functions is a entry point for http messages.

    * received from Symbian HTTP Stack

    * @since Series 60 3.2

    * @param aSessionId identifier of the HTTP request.

    * @param aHttpStatusCode HTTP error code.

    */

    void HttpResponseReceivedL( TInt aSessionId,

                                TInt aStatusCode);   

    /** 

    * Function for stopping ongoing file transfer (import / export)

    * @since Series 60 2.6

    * @param aAction received action

    * @retrun upnperrorcode descriping situation

    **/

    TUpnpErrorCode StopTransferResourceL( TInt aId ); 

    /**

    * This function return a file transfer from CDs list.

    * @since Series 60 2.6

    * @param aTransferId transferid to be checked

    * @return TUpnpFileTransfer.

    */

    TInt Transfer( TInt aTransferId );

    /**

    * This functions returns export/import file transfers which are in progress state       

    * @param aResult number of file transfers in progress state 

    */

    TBool IsMaxImportExportTransfers();

    /**

    * This function removes a file transfer event from list and return it.

    * @since Series 60 2.6

    * @param aTransferId transferid to be checked

    * @return TUpnpFileTransfer.

    */

    CUpnpFileTransferEvent* RemoveTransferLC( TInt aTransferId );

    CUpnpFileTransferEvent* TransferL( TInt aTransferId );

    /**

    * Callback for filetransfer timer events

    * @since Series 60 2.6

    * @return Error code

    */

    void TransferEvent( CUpnpFileTransferTimerObserver* aTimer );

     /**

    * Append transfer to transfer list for eventing purpose        

    * @param aHttpMsg 

    */

    void AddIncomingTransferInternalL(CUpnpHttpMessage* aHttpMsg);

    void TransferFailL(CUpnpHttpMessage* aHttpMsg);

     /**

    * Sends transfer failed event to Media Server       

    * @param aHttpMsg 

    */

    void NotifyTransferFailL(CUpnpHttpMessage* aHttpMsg);

private:

    /**

    * C++ default constructor.

    */

    CUpnpTransferController( CUpnpContentDirectory* aCd );

    /**

    * Second phase of the constructor.

    * Initialises a DOM tree.

    * By default Symbian 2nd phase constructor is private.

    * @param service Parent service

    */

    void ConstructL();

public: 

    //array for filetransfers  

    RPointerArray<CUpnpFileTransfer> iFileTransfers;

    RPointerArray<CUpnpFileTransferTimerObserver> iStatusTimers;

private: 

    CUpnpContentDirectory* iContentDirectory;

    };

#endif      // C_CUPNPTRANSFERCONTROLLER_H 

// End of File