/*

* Copyright (c) 2002-2005 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 WSF_RFILE_TXN_STATE_H

#define WSF_RFILE_TXN_STATE_H

//  INCLUDES

#include <e32base.h>

#include "sentxnstate.h"

#include "senhttpchannelimpl.h"

// CLASS DECLARATION

/**

 * Class for handling the transaction state in the http client class.

 * Implements the MHTTPDataSupplier interface.

 *	

 */

class CSenRfileTxnState : public CSenTxnState

    {

public:  // Constructors and destructor

    /**

     * Two-phased constructor.

     *

     */

    static CSenRfileTxnState* NewLC(MSenResponseObserver& aObserver,

                               //RFileLogger* aLog,

                               const TDesC8* aUri,

                               CSenHttpChannelImpl* aHttpClient,

                               const TDesC8& aContentType,

                               const RFile& aContent);

    /**

     * Two-phased constructor.

     *

     */

    static CSenRfileTxnState* NewL(MSenResponseObserver& aObserver,

                              //RFileLogger* aLog,

                              const TDesC8* aUri,

                              CSenHttpChannelImpl* aHttpClient,

                              const TDesC8& aContentType,

                              const RFile& aContent);

    /**

     * Virtual destructor.

     *

     */

    virtual ~CSenRfileTxnState();

        // New functions

    // Functions from base classes

    /**

     * From MHTTPDataSupplier::GetNextDataPart.

     * Obtain a data part from the supplier.  The data is guaranteed

     * to survive until a call is made to ReleaseData().

     * @param aDataPart The data part.

     * @return ETrue if this is the last part, EFalse otherwise.

     */

    virtual TBool GetNextDataPart(TPtrC8& aDataPart);

    /**

     * From MHTTPDataSupplier::ReleaseData.

     * Release the current data part being held at the data

     * supplier.  This call indicates to the supplier that the part

     * is no longer needed, and another one can be supplied, if

     * appropriate.

     */

    virtual void ReleaseData();

    /**

     * From MHTTPDataSupplier::OverallDataSize.

     * Obtain the overall size of the data being supplied, if known

     * to the supplier.  Where a body of data is supplied in several

     * parts this size will be the sum of all the part sizes. If

     * the size is not known, KErrNotFound is returned; in this case

     * the client must use the return code of GetNextDataPart to find

     * out when the data is complete.

     *

     * @return A size in bytes, or KErrNotFound if the size is not known.

     */

    virtual TInt OverallDataSize();

    /**

     * From MHTTPDataSupplier::Reset.

     * Reset the data supplier.  This indicates to the data supplier

     * that it should return to the first part of the data.

     * This could be used in a situation where the data consumer has

     * encountered an error and needs the data to be supplied afresh.

     * Even if the last part has been supplied (i.e. GetNextDataPart

     * has returned ETrue), the data supplier should reset to the

     * first part. If the supplier cannot reset it should return an

     * error code; otherwise it should return KErrNone, where the

     * reset will be assumed to have succeeded.

     *

     * @return KErrNone if successful, otherwise another error code.

     */

    virtual TInt Reset();

protected:

    /**

     * C++ default constructor.

     *

     */

    CSenRfileTxnState(MSenResponseObserver& aObserver);//,

                 //RFileLogger* aLog);

    /**

     * File logger.

     *

     */

    //RFileLogger* Log() const; 

private://data  

	RFile iFile;

	CSenHttpChannelImpl *iHttpClient ;

	TBool iMoreContent;

	HBufC8* iReadData;

	/**Message content data pointer for POSTs.Not own.*/

//	const TDesC8* iContent;

	TInt iSize;

/**

     * Return flag if more body to be send. Only in chunked mode.

     * 

     * @since S60 ?S60_version

     * @return True if more body to be send.

     */    

    TBool MoreBody() const;	

private:

    /**

     * 2nd phase constructor.

     *

     */

    void ConstructL(const TDesC8* aUri,

                    CSenHttpChannelImpl* aHttpClient,

                    const TDesC8& aContentType,

                    const RFile& aContent);

    };

#endif // WSF_TXN_STATE_H

// End of File