/*

* Copyright (c) 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:  Server session adapter base class.

 *

*/

#ifndef XIMPSRVSESSIONADAPTER_H

#define XIMPSRVSESSIONADAPTER_H

#include <e32base.h>

class MXIMPSrv;

class MXIMPSrvSession;

class MXIMPSrvMessage;

class CXIMPSrvMessageImp;

/**

 * Server session adapter base class.

 *

 * @lib ximputils.dll

 * @since S60 v3.2

 */

class CXIMPSrvSessionAdapter : public CSession2

    {

public:     // Constructor and destructor

    IMPORT_C CXIMPSrvSessionAdapter( MXIMPSrv& aServer );

    IMPORT_C ~CXIMPSrvSessionAdapter();

public:     // Methods derived from CSession2

    IMPORT_C void ServiceL( const RMessage2& aMessage );

    IMPORT_C void ServiceError( const RMessage2& aMessage,

                                TInt aError );

public:     // New template methods 

    /**

     * Session instantiation template method for

     * derived implementations.

     *

     * @param aMessage The session instantiation message.

     *

     * @return Session implementation object or NULL if the message

     *         isn't valid session instantiation request.

     */

    virtual MXIMPSrvSession* DoInstantiateSessionL( const MXIMPSrvMessage& aMessage ) = 0;    

protected:

    /**

     * Access to server for derived implementations.

     * @return Access to server object.

     */

    IMPORT_C MXIMPSrv& Server();

private:    // Helpers 

    TBool IsCurrentMessageValid();

private:    // Data

    /**

     * Owning server.

     * Referenced.

     */

    MXIMPSrv& iServer;

    /**

     * Real session implementation.

     * Owned.

     */

    MXIMPSrvSession* iSessionImp;

    /**

     * Currently handled message.

     * Does not own.

     */

    CXIMPSrvMessageImp* iCurrentMsg;

    /**

     * Owned.

     */

    CXIMPSrvMessageImp* iMessage;    

    };

#endif      //  XIMPSERVERSESSIONADAPTER_H