diff -r 9f5ae1728557 -r db3f5fa34ec7 messagingfw/msgsrvnstore/server/inc/cmessageconvertermanager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/messagingfw/msgsrvnstore/server/inc/cmessageconvertermanager.h	Wed Nov 03 22:41:46 2010 +0530
@@ -0,0 +1,135 @@
+// Copyright (c) 2008-2009 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:
+//
+
+#ifndef __CMESSAGECONVERTERMANAGER_H__
+#define __CMESSAGECONVERTERMANAGER_H__
+
+//  Header files
+#include <e32base.h>// CBase
+#include <e32std.h>	// TBuf
+#include "f32file.h"
+#include "msvdbadapter.h"
+#include "msvmessagedbadapter.h"
+
+
+
+// fwd declarations
+class CMsvVersion0Version1Converter;
+class CMsvVersion1Version2Converter;
+class CMsvDBAdapter;
+
+
+//constants
+const TUid KUidMsvSmsMtm 			= { 0x1000102c };
+const TUid KUidMsgTypePOP3			= {0x10001029};	// 268439593
+const TUid KUidMsgTypeIMAP4			= {0x1000102A};	// 268439594
+const TUid KUidMsgTypeSMTP			= {0x10001028};	// 268439592
+
+//Literals
+_LIT(KIndexFilePath,"\\Private\\1000484b\\Mail2\\Index");
+
+
+/**
+TConversionResumeStatus
+A structure having fields as member variables that are required to mainatin and communicate
+caonversion status information
+
+@internalAll 
+@released
+*/
+struct TConversionResumeStatus
+	{
+	TMsvId lastId;
+	TMsvId serviceId;
+	TInt sourceVersion;
+	TInt targetVersion;
+	TUid mtmId;
+	TInt remainingCount;
+	};
+
+/**
+MMsvMessageStoreConverter
+A pure virtual class that acts a base class for different version message store conversion
+classes. Any class that converts messages from one verion to another must inherit from this.
+
+@internalAll 
+@released
+*/
+class MMsvMessageStoreConverter
+	{
+public:
+	virtual void ConvertMessageStoreL() = 0;
+	virtual ~MMsvMessageStoreConverter()
+		{
+		};
+	};
+
+
+/**
+CMessageConverterManager
+This class manages the conversion of message store from one version to another.
+Starts a new conversion or resumes a conversion from the last point.
+Owns and initiates conversion of version 0 and version 1 message store.
+
+@internalAll 
+@released
+*/
+NONSHARABLE_CLASS (CMessageConverterManager) : public CBase 
+	{
+	public:
+		static CMessageConverterManager* NewL(TDriveNumber aDriveNumber);
+		static TInt StartConversion(TAny* aDrive);
+		~CMessageConverterManager();
+		void DoConversionL() ;
+		
+	private: 
+		CMessageConverterManager(TDriveNumber aDriveNumber);
+		void ConstructL();
+		TBool ResumeConversionL();	
+		void InitialiseMessageStoreConversionL();
+		void RemoveIndexFileL(TDriveNumber aDrive);
+		void RollBackVersion0Version1ConversionL();
+		void RollBackVersion1Version2ConversionL();		
+	private: 
+		 RFs ifsSession;
+		 CMsvDBAdapter* iDbAdapter;
+		 CMsvMessageDBAdapter* iMessageDbAdapter;
+		 CMsvVersion0Version1Converter* iIndexFileConverter;
+		 CMsvVersion1Version2Converter* iMessageConverter;
+		 
+		 TDriveNumber iDrive;
+		 TInt iConversionVersion;
+		 TConversionResumeStatus iResumeStatus;
+		 TBool iConversionResume;
+		 TBool iConversionTablePresent;
+		 TBuf<64> iFilePath;
+		 TFileName iDBFileName;
+		 TInt iInitialVersion;
+		 TInt iDeleteDatabase;
+	
+#if (defined SYMBIAN_MESSAGESTORE_UNIT_TESTCODE)	
+	friend class CTestMessageConverterManager;
+#endif
+	};
+
+#endif  // __CMESSAGECONVERTERMANAGER_H__
+
+
+
+
+  
+
+	
+