/*

* Copyright (c) 2007 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:  

*

*/

#ifndef WRTHARVESTERPUBLISHEROBSERVER_H

#define WRTHARVESTERPUBLISHEROBSERVER_H

#include <e32base.h>

#include <LiwCommon.h>

// FORWARD DECLARATIONS

class CWrtHarvester;

class CLiwServiceHandler;

// CONSTANTS

// CLASS DECLARATION

/**

 *  CWrtHarvesterPublisherObserver

 *

 *  @lib wrtharvester.dll

 *  @since S60 S60 v5.0

 */

class CWrtHarvesterPublisherObserver : public CBase, public MLiwNotifyCallback

	{

	public: // Constructors and destructor

		/**

		 * Two-phased constructor.

		 */

		static CWrtHarvesterPublisherObserver* NewLC( const TDesC& aName, CWrtHarvester* aHarvester );

		/**

		 * Destructor.

		 */

		virtual ~CWrtHarvesterPublisherObserver();

	public:  //from MLiwNotifyCallback

	    /**

	    * Handles notifications caused by an asynchronous Execute*CmdL call

	    * or an event.

	    *

	    * @param aCmdId The service command associated to the event.

	    * @param aEventId Occured event, see LiwCommon.hrh.

	    * @param aEventParamList Event parameters, if any, as defined per

	    *        each event.

	    * @param aInParamList Input parameters, if any, given in the

	    *        related HandleCommmandL.

	    * @return Error code for the callback.

	    */

	    virtual TInt HandleNotifyL(

	        TInt aCmdId,

	        TInt aEventId,

	        CLiwGenericParamList& aEventParamList,

	        const CLiwGenericParamList& aInParamList);

	public:

	    /**

	    * Registers to CPS for add, delete , update and execute notifications

	    * @aFilter - filter for input parameter list

	    * @return void.

	    */

	    void RegisterL( CLiwDefaultMap* aFilter );

	    /**

	    *

	    */

	    const TDesC& Name();

	private:

	    /**

        * Perform the second phase construction 

        */      

        void ConstructL( const TDesC& aName );

        /**

		* Default constructor.

		*/

		CWrtHarvesterPublisherObserver( CWrtHarvester* aHarvester );

		// Prhohibited

		CWrtHarvesterPublisherObserver();

	    /**

	    * Cancel all the registered notifications. 

	    * @return void.

	    */

	    void ReleaseL();

	    /**

	    * Initialise Liw connection to Content publishing service.

	    */

	    void InitLiwL();

	    /**

	    * Closes Liw connection to Content publishing service.

	    */

	    void ReleaseLiw();

	private: // data

	    // Reference of 

	    // Owned

	    MLiwInterface* iInterface;

	    // Reference of 

	    // Owned

	    CLiwServiceHandler* iLiwHandler;	            

	    // Reference of the sapi data

	    // Not owned

	    CWrtHarvester* iHarvester;

	    // Name of the observed publisher

	    // Owned

	    HBufC* iName;

	    // Call back error code

	    TInt iError;

    };

#endif // WRTHARVESTERPUBLISHEROBSERVER_H