/*

* Copyright (c) 2006-2007 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:  Header file for logging SAPI core implementation.

*

*/

#ifndef LOGGINGSERVICEHANDLER_H

#define LOGGINGSERVICEHANDLER_H

#include <liwserviceifbase.h>

/**

* InterfaceName ILogging

* Contenttypes Service.Logging

*/

_LIT8(KDsInterfaceName , "IDataSource") ;

_LIT8(KLoggingContents , "Service.Logging") ;

/**

* A const member which holds max supported to be stored as part of 

* iPositionGeneric  member of class CLogServiceHandler

*/

const TUint KMaxFields = 25 ;

/**

* This is the  service interface to access logging base service provider

* this class is inherited from CLiwServiceIfBase class

*

* @lib ServiceHandler.lib depenedncy

* @see CLiwServiceIfBase in liwserviceifbase.h file

* 

*/

class CLogServiceHandler  : public CLiwServiceIfBase

    {

    public:

        /**

        * NewL: Two phased construction

        */

        IMPORT_C static CLogServiceHandler* NewL();

        /**

        * NewLC: Creates an instance of CLoggingServiceClass

        * Two Phased constructor

        * returns newly allocated object.

        */

        static CLogServiceHandler* NewLC() ;

        /**

        * Default destruct 

        */ 

        virtual ~CLogServiceHandler();

        /**

        * Called by the AIW framework to initialise provider with necessary information 

        * from the Service Handler. This method is called when the consumer makes 

        * the attach operation.         

        *

        * @param aFrameworkCallback callback handle function

        * @param aInterest consumer application's intrest

        */

        virtual void InitialiseL(   MLiwNotifyCallback& aFrameworkCallback,

                                    const RCriteriaArray& aInterest );

        /**

        * Executes generic service commands included in criteria, derived from CLiwServiceIfBase

        * 

        * @param aCmdId Command to be executed.

        * @param aInParamList Input parameters, can be an empty list.

        * @param aOutParamList Output parameters, can be an empty list.

        * @param aCmdOptions Options for the command, see KLiwOpt* in LiwCommon.hrh.

        * @param aCallback Callback for asynchronous command handling, parameter checking, etc.

        * 

        */

        virtual void HandleServiceCmdL( const TInt& aCmdId,

                                        const CLiwGenericParamList& aInParamList,

                                        CLiwGenericParamList& aOutParamList,

                                        TUint aCmdOptions = 0,

                                        const MLiwNotifyCallback* aCallback = NULL);

    protected:

        /**

        *  default constructor

        */ 

        CLogServiceHandler();

        /**

        * Internal CmdExecute function which parses  the input parameters

        * this function is called by HandleCmdL() function 

        *

        * @param aCmdId Command to be executed.

        * @param aInParamList Input parameters, can be an empty list.

        * @param aOutParamList Output parameters, can be an empty list.

        * @param aCmdOptions Options for the command, see KLiwOpt* in LiwCommon.hrh.

        * @param aCallback Callback for asynchronous command handling, parameter checking, etc.

        * @leave KErrArgument Callback is missing when required.

        * @leave KErrNotSupported No provider supports service.

        *

        */

        void CmdExecuteL(   const TInt& aCmdId,

                            const CLiwGenericParamList& aInParamList,

                            CLiwGenericParamList& aOutParamList,

                            TUint aCmdOptions ,

                            const MLiwNotifyCallback* aCallback );

    private:

        TBuf8<KMaxFields> iContentType;

    };

#endif //LOGGINGSERVICEHANDLER_H