diff -r 000000000000 -r 32704c33136d iaupdate/IAD/ui/src/iaupdateparametersfilemanager.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/iaupdate/IAD/ui/src/iaupdateparametersfilemanager.cpp	Tue Jan 26 12:06:03 2010 +0200
@@ -0,0 +1,288 @@
+/*
+* Copyright (c) 2007-2007 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:   CIAUpdateParametersFileManager
+*
+*/
+
+
+
+
+#include <bautils.h>
+#include <s32file.h>
+#include <sysutil.h>
+#include <iaupdateparameters.h>
+
+#include "iaupdateparametersfilemanager.h"
+#include "iaupdatefileconsts.h"
+#include "iaupdatetools.h"
+#include "iaupdatedebug.h"
+
+
+
+
+
+
+
+// This constant will be used to check if the IAD application
+// is using the same version of the file. If the versions
+// differ, then this may require additional checking in the future versions
+// when data is internalized. For example, IAD may give old version data 
+// when self update is started and after update new version is used.
+const TInt KVersion( 1 );
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::NewL
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParametersFileManager* CIAUpdateParametersFileManager::NewL()
+    {
+    CIAUpdateParametersFileManager* self =
+        CIAUpdateParametersFileManager::NewLC();
+    CleanupStack::Pop( self );
+    return self;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::NewLC
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParametersFileManager* CIAUpdateParametersFileManager::NewLC()
+    {
+    CIAUpdateParametersFileManager* self =
+        new( ELeave) CIAUpdateParametersFileManager();
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    return self;    
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::CIAUpdateParametersFileManager
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParametersFileManager::CIAUpdateParametersFileManager()
+: CBase()
+    {
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::ConstructL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateParametersFileManager::ConstructL()
+    {
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::ConstructL start");
+    
+    User::LeaveIfError( iFsSession.Connect() );
+    User::LeaveIfError( 
+        iFsSession.SetSessionToPrivate( 
+            IAUpdateFileConsts::KDrive ) );    
+    User::LeaveIfError( iFsSession.SessionPath( iPath ) );
+    BaflUtils::EnsurePathExistsL( iFsSession, iPath );
+    iPath.Append( IAUpdateFileConsts::KParamsFile() );
+    
+    IAUPDATE_TRACE_1("[IAUPDATE] CIAUpdateParametersFileManager::ConstructL end: %S", &iPath);
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::~CIAUpdateParametersFileManager
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParametersFileManager::~CIAUpdateParametersFileManager()
+    {
+    iFsSession.Close();
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::ReadL
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParameters* CIAUpdateParametersFileManager::ReadL()
+	{
+    IAUPDATE_TRACE_1("[IAUPDATE] CIAUpdateParametersFileManager::ReadDataL path: %S", &iPath);
+
+    CIAUpdateParameters* params( NULL );
+    
+	RFile file;
+    TInt err( file.Open( iFsSession, iPath, EFileRead ) );
+    if ( err == KErrNotFound )
+        {
+        IAUPDATE_TRACE("[IAUPDATE] Parameter file did not exist.");
+        // File was not found.
+        // So, return NULL.
+        return params;
+        }
+
+    // If error occurred then leave.
+    User::LeaveIfError( err );
+    	
+    CleanupClosePushL( file );
+    
+    RFileReadStream stream( file, 0 );
+    CleanupClosePushL( stream );
+
+    params = InternalizeL( stream );
+    
+    CleanupStack::PopAndDestroy( &stream );
+    CleanupStack::PopAndDestroy( &file );
+
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::ReadDataL end");
+    
+    return params;
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::WriteL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateParametersFileManager::WriteL( const CIAUpdateParameters& aParams )
+	{
+    IAUPDATE_TRACE_1("[IAUPDATE] CIAUpdateParametersFileManager::WriteDataL path: %S", &iPath);
+    TInt sizeOfFile = sizeof( TInt ) //length integer in stream
+                    + sizeof( TInt ) //KVersion
+                    + sizeof( TInt ) * 5  //integers in externalised params
+                    + aParams.SearchCriteria().Size()
+                    + aParams.CommandLineExecutable().Size()
+                    + aParams.CommandLineArguments().Size(); 
+        
+	if ( SysUtil::DiskSpaceBelowCriticalLevelL( &iFsSession, 
+	                                            sizeOfFile, 
+	                                            IAUpdateFileConsts::KDrive ) )
+	    {
+		User::Leave( KErrDiskFull );
+	    }
+    
+	RFile file;
+    User::LeaveIfError( file.Replace( iFsSession, iPath, EFileWrite ) );
+    CleanupClosePushL( file );
+    
+    RFileWriteStream stream( file, 0 );
+    CleanupClosePushL( stream );
+
+    ExternalizeL( stream, aParams );
+    stream.CommitL();
+    
+    CleanupStack::PopAndDestroy( &stream );
+    CleanupStack::PopAndDestroy( &file );
+
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::WriteDataL end");
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::RemoveFile
+//
+// -----------------------------------------------------------------------------
+//
+TInt CIAUpdateParametersFileManager::RemoveFile()
+    {
+    IAUPDATE_TRACE_1("[IAUPDATE] CIAUpdateParametersFileManager::RemoveFile path: %S", &iPath);
+    
+    // May either be a full path, or relative to the session path.
+    // Even if session path has already been set in the ConstructL,
+    // we do not use the relative path and only the hard coded filename here. 
+    // A new path may have been given by calling SetFilePathL. So, use that
+    // value here.
+    TInt errorCode( BaflUtils::DeleteFile( iFsSession, iPath ) );
+
+    IAUPDATE_TRACE_1("[IAUPDATE] CIAUpdateParametersFileManager::RemoveFile end: %d", errorCode);
+    
+    return errorCode;
+    }
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::InternalizeL
+//
+// -----------------------------------------------------------------------------
+//
+CIAUpdateParameters* CIAUpdateParametersFileManager::InternalizeL( RReadStream& aStream )
+	{
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::InternalizeL start");
+    
+	// If you make changes here, 
+	// remember to update ExternalizeL accordingly!!!
+
+    TInt version( aStream.ReadInt32L() );
+
+    // Notice! In the future, some checking maybe required here
+    // to be sure that file version is correct and the data can be
+    // internalized correctly between different versions.
+    if ( version != KVersion )
+        {
+        // For now, just leave with the corrupt error.
+        User::Leave( KErrCorrupt );
+        }
+
+    CIAUpdateParameters* params( NULL );
+
+    HBufC8* data( NULL );
+    IAUpdateTools::InternalizeDes8L( data, aStream );
+    if ( data )
+        {
+        IAUPDATE_TRACE("[IAUPDATE] Create parameters object");
+        params = CIAUpdateParameters::NewLC();
+        IAUpdateTools::InternalizeParametersL( *params, *data );
+        delete data;
+        data = NULL;
+        CleanupStack::Pop( params );        
+        }
+
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::InternalizeL end");
+
+    return params;
+	}
+
+
+// -----------------------------------------------------------------------------
+// CIAUpdateParametersFileManager::ExternalizeL
+//
+// -----------------------------------------------------------------------------
+//
+void CIAUpdateParametersFileManager::ExternalizeL( RWriteStream& aStream,
+                                                   const CIAUpdateParameters& aParams )
+	{
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::ExternalizeL start");
+    
+	// If you make changes here, 
+	// remember to update InternalizeL accordingly!!!
+
+    aStream.WriteInt32L( KVersion );
+
+    // Write parameter data into the stream.
+    HBufC8* data( NULL );
+    IAUpdateTools::ExternalizeParametersL( data, aParams );
+    if ( data )
+        {
+        IAUPDATE_TRACE("[IAUPDATE] Externalize parameter data into the stream.");
+        IAUpdateTools::ExternalizeDes8L( *data, aStream );
+        delete data;
+        data = NULL;
+        }
+
+    IAUPDATE_TRACE("[IAUPDATE] CIAUpdateParametersFileManager::ExternalizeL start");
+	}