/*

* Copyright (c) 2004-2009 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: 

* CSisRegistryFile class - implementation

*

*/

/**

 @file 

 @released

 @internalComponent 

*/

#include<s32mem.h>

#include<f32file.h>

#include "arrayutils.h"

#include "sisregistryfile.h"

#include "sisregistrycache.h"

#include "sisregistryobject.h"

#include "sisregistryutil.h"

using namespace Swi;

CSisRegistryFile* CSisRegistryFile::NewL(const CSisRegistryPackage& aPackage, CSisRegistryCache& aCache)

	{

	CSisRegistryFile* self = NewLC(aPackage, aCache);

	CleanupStack::Pop(self);

	return self;

	}

CSisRegistryFile* CSisRegistryFile::NewLC(const CSisRegistryPackage& aPackage, CSisRegistryCache& aCache)

	{

	CSisRegistryFile* self = new(ELeave) CSisRegistryFile;

	CleanupStack::PushL(self);

	self->ConstructL(aPackage, aCache);

	return self;

	}

CSisRegistryFile::~CSisRegistryFile()

	{

	delete iObject;

	iFileStream.Close();

	}

void CSisRegistryFile::ReloadL(const TFileName& fileName, CSisRegistryCache& aCache)	

    {

	RFs& hFs = aCache.RFsHandle();

	User::LeaveIfError(iFileStream.Open(hFs, fileName, EFileRead | EFileShareReadersOnly));

	delete iObject;

	iObject = 0;	 

	iObject  = CSisRegistryObject::NewL(iFileStream);

	}

void CSisRegistryFile::ConstructL(const CSisRegistryPackage& aPackage, CSisRegistryCache& aCache)

//

// 2nd phase construct 

//

	{	

   	HBufC* name = SisRegistryUtil::BuildEntryFileNameLC(aPackage.Uid(), aPackage.Index());

	ReloadL(*name, aCache);

	CleanupStack::PopAndDestroy(name);

	// before we allocate the subsession ID, ensure that the file we've loaded matches the 

	// package passed to us.

	if (!(aPackage == *iObject))

		{

		User::Leave(KErrNotFound);

		}

	iSubsessionId = aCache.AllocateSubsessionId();

	}