/*

* Copyright (c) 2007-2008 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:  Logger implementation

*

*/

#ifndef IMCVLOGGER_H

#define IMCVLOGGER_H

#include <e32svr.h>

#include <flogger.h>

#include <e32std.h>

// enable logs printing

// into  c:\\logs\\imcv\\imcv.txt

#ifdef __WINS__

  #ifdef _DEBUG

    #define ENABLE_DEBUG_LOGS // for WINS UDEB

 #endif

#else

  #ifdef _DEBUG     

    #define ENABLE_DEBUG_LOGS // for device UDEB

  #endif

#endif

/**   

* Usage of Log MACRO'S

* _LIT( KExample, "Example" );

*  TXT(s) _L(s)	

*  IM_CV_LOGS(TXT("Some text.") );

*  IM_CV_LOGS(TXT("Some text: %d"), 100 );

*  IM_CV_LOGS(TXT("Some text: %S"), &KExample );

*/

_LIT( KTAdaptDebugOutputDir, "imcv" );

_LIT( KTAdaptDebugOutputFileName, "imcv.txt" );

const TInt KTAdaptMaxLogLineLength = 250 ;

#define TXT(s) _L(s)

#define IM_CV_LOGS TIMCVLogger::WriteLog

#define PLUGIN_UNUSED_PARAM(p) (void) p

/**

 * IM Conversation View logger.

 */

class TIMCVLogger

    {

    public: //Logging functions

    	/*

        * WriteLog, write the message into c:\\logs\\imcv\\imcv.txt

        * need to create imcv folder into c:\\logs

        * @param aFmt, list of messges to print

        */

		static void WriteLog( TRefByValue<const TDesC> aFmt,... );

    private: //Prohibited

    	/*

        * construtor

        */

        TIMCVLogger();

        /*

        * destructor

        */

        ~TIMCVLogger();

    };

#endif // IMCVLOGGER_H

/**

 * Handler used by logger to truncate the string

 * rather than panic in case of buffer overflow.

*/

NONSHARABLE_CLASS ( TAdaptOverflowTruncate ) : public TDes16Overflow

	{

public:

	void Overflow ( TDes16& /*aDes*/ ) {}

	};

// ============================ MEMBER FUNCTIONS ===============================

// -----------------------------------------------------------------------------

// TIMCVLogger::WriteLog()

// -----------------------------------------------------------------------------

//

inline void TIMCVLogger::WriteLog ( TRefByValue<const TDesC> aFmt, ... )

	{

	#ifdef ENABLE_DEBUG_LOGS

		( void ) aFmt;//Suppress unused formal parameter warning

		TBuf< KTAdaptMaxLogLineLength > buffer;

		buffer.Append ( _L ( "[" ) );           // CSI: 78 #

		buffer.Append ( RThread().Name() );

		buffer.Append ( _L ( "] " ) );          // CSI: 78 #

		TAdaptOverflowTruncate overflow;

		VA_LIST list;

		VA_START ( list, aFmt );

		buffer.AppendFormatList ( aFmt, list, &overflow );

		RFileLogger logger;

		if ( logger.Connect() == KErrNone )

			{

			logger.SetDateAndTime ( ETrue, ETrue );

			logger.CreateLog ( KTAdaptDebugOutputDir, KTAdaptDebugOutputFileName,

			                   EFileLoggingModeAppend );

			logger.Write ( buffer );

			logger.CloseLog();

			logger.Close();

			}

		RDebug::Print( _L("%S"), &buffer );

	#endif

	}

// End of File