/*

* Copyright (c) 2004 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:  Attribute fetch handler.

*

*/

#ifndef CPENGATTRIBUTEFETCHHANDLER_H__

#define CPENGATTRIBUTEFETCHHANDLER_H__

//  INCLUDES

#include <E32base.h>

#include "MPEngOutgoingTransactionHandler.h"

#include "PEngWVCspVersion.h"

//FORWARD DECLARATION

class CPEngTransactionStatus;

class MPEngPresenceAttrManager;

class MPEngPresenceAttrModel2;

class MPEngAttrFetchProcessor;

// CLASS DECLARATION

/**

 * Attribute fetcher.

 *

 * Handles presence attribute fetch XML request

 * generation and response decoding.

 *

 * @lib PEngAttrLib

 * @since 3.0

 */

NONSHARABLE_CLASS( CPEngAttributeFetchHandler ) : public CActive,

        public MPEngOutgoingTransactionHandler

    {

public:  // Constructors and destructor

    /**

     * Two-phased constructor.

     */

    static CPEngAttributeFetchHandler* NewLC( MPEngPresenceAttrManager& aAttrManager,

    const TDesC& aDomain,

    const TDesC16& aData,

    TInt aTransactionOperation,

    TPEngWVCspVersion aCspVersion );

    /**

     * Destructor.

     */

    virtual ~CPEngAttributeFetchHandler();

private: //Constructors

    /**

     * C++ default constructor.

     */

    CPEngAttributeFetchHandler( MPEngPresenceAttrManager& aAttrManager,

                                TInt aTransactionOperation );

    /**

     * By default Symbian 2nd phase constructor is private.

     */

    void ConstructL( const TDesC& aDomain,

                     TPEngWVCspVersion aCspVersion,

                     const TDesC16& aData );

public: // Functions from MPEngOutgoingTransactionHandler

    /**

     * From MPEngOutgoingTransactionHandler

     *

     * @since 3.0

     */

    void RequestL( TDes8& aSendBuffer );

    void LastRunningTransactionHandler();

    void ProcessResponseL( const TDesC8& aResponse, TRequestStatus& aStatus );

    void CancelProcessing();

    void NewTransactionHandlersL( RPointerArray<MPEngOutgoingTransactionHandler>& aHandlers );

    TBool TransactionCompleted();

    CPEngTransactionStatus* TransactionResult();

    void ReleaseHandler();

protected: //from CActive

    void RunL();

    TInt RunError( TInt aError );

    void DoCancel();

private: //Request helpers

    /**

     * Issues new active object run round.

     *

     * @since 3.0

     */

    void IssueNewRound();

private:    // Data

    //REF: Attribute Manager

    MPEngPresenceAttrManager&   iAttributeManager;

    //OWN: Operation id

    const TInt  iTransactionOperation;

    //OWN: Fetch processor

    MPEngAttrFetchProcessor*    iFetchedProcessor;

    //OWN: Decoded attribute models

    RPointerArray< MPEngPresenceAttrModel2 >    iResultModels;

    //OWN: Fetcher transaction status

    CPEngTransactionStatus*     iResultStatus;

    //REF: Status to complete

    TRequestStatus*     iRequest;

    };

#endif      //  CPENGATTRIBUTEFETCHHANDLER_H__

//  End of File