/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "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: 

* Component which handles reg file parsing asynchronously

*

*/

/**

 @file

 @internalTechnology

*/

#ifndef __APPREGEXTRACTOR_H__

#define __APPREGEXTRACTOR_H__

#include <e32base.h>

#include <f32file.h> 

#include "log.h"

#include <usif/scr/appregentries.h>

#include "sislauncherclient.h"

namespace Swi

{

class RSisHelper;

/**

 * This class is an active object, which manages file extraction in chunks, using SISHelper

 */

class CAppRegExtractor : public CActive

    {

public:

    static CAppRegExtractor* NewLC(RFs& aFs, RArray<TLanguage> deviceSupportedLanguages, RPointerArray<Usif::CApplicationRegistrationData>& aApparcRegFileData );

    static CAppRegExtractor* NewL(RFs& aFs, RArray<TLanguage> deviceSupportedLanguages, RPointerArray<Usif::CApplicationRegistrationData>& aApparcRegFileData );

    /**

     * Extract the file, using provided file handle which must be set up correctly.

     */ 

    void ExtractAppRegInfoSizeL(const TDesC& aFileName, TRequestStatus& aStatus);

    /// Get the error code for the latest async parsing operation.

    TInt GetErrorCode() const; 

    ~CAppRegExtractor();

private:

    CAppRegExtractor(RFs& aFs, RArray<TLanguage> deviceSupportedLanguages, RPointerArray<Usif::CApplicationRegistrationData>& aApparcRegFileData ); 

    void ConstructL();

// from CActive

    void RunL();

    void DoCancel();

    TInt RunError(TInt aError);

    /// Sets up the file handle, owned by the file extractor for the duration of the extraction

    void SetupFileHandleL(const TDesC& aFileName);

    /// finishes the extraction and notifies the client of the result

    TInt FinishAppRegExtraction(TInt aResult);    

private:    

    RFs&    iFs;   

    TBool iCancelled;      

    TRequestStatus* iClientStatus;

    RSisLauncherSession iLauncher;

    RFile* iCurrentFile;

    TBool iManagedFileHandle; // whether we manage the file handle used for file extraction.

    RArray<TLanguage> iDeviceSupportedLanguages; 

    RPointerArray<Usif::CApplicationRegistrationData>& iApparcRegFileData;

    TInt iErrCode;

    };

}

#endif // #ifndef __FILEEXTRACTOR_H__