/*

* 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:  Property handler

*

*/

#ifndef CSENSRVPROPERTYHANDLER_H

#define CSENSRVPROPERTYHANDLER_H

#include <e32base.h>

#include "sensrvclient.h"

#include "sensrvchannelinfo.h"

class MSensrvPropertyHandlerObserver;

/**

 *  Property handler class

 *

 *  @lib SensorClient.lib

 *  @since S60 5.0

 */

NONSHARABLE_CLASS( CSensrvPropertyHandler ) : public CActive

    {

    public:

        static CSensrvPropertyHandler* NewL( RSensrvClient& aSensrvClient, const TSensrvChannelInfo& aChannelInfo );

        static CSensrvPropertyHandler* NewLC( RSensrvClient& aSensrvClient, const TSensrvChannelInfo& aChannelInfo );

        /**

        * Destructor

        */

        virtual ~CSensrvPropertyHandler();        

    public:

        /**

        * Start property listening. Send request to server.

        * 

        * @since S60 5.0

        * @param aPropertyListener Property listener for channel.

        */

        void StartListening( MSensrvPropertyHandlerObserver* aPropertyObserver );

    protected: // From CActive

          void DoCancel();

          void RunL();

          TInt RunError(TInt aError);

    private:

        /**

        * Constructor

        */

        CSensrvPropertyHandler( RSensrvClient& aSensrvClient,  const TSensrvChannelInfo& aChannelInfo  );

        /**

        * Create and send request to server

        */

        void CreateAndSendRequest();

    private: // data

        /**

        * Client

        */

        RSensrvClient& iSensrvClient;

        /**

        * The channel information

        */

        TSensrvChannelInfo iChannelInfo;

         /**

         * Property listener

         * Not own.         

         */

        MSensrvPropertyHandlerObserver* iPropertyObserver;       

        /**

        * Server writes changed property data here.

        */

        TPropertyPckgBuf iPropertyPckgBuf;

        /**

        * Error count

        */

        TInt iErrorCount;

    };

#endif // CSENSRVPROPERTYHANDLER_H