/*

* 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: 

*

*/

#include <s32strm.h>

#include <caf/virtualpath.h>

#include "cafutils.h"

using namespace ContentAccess;

EXPORT_C CVirtualPath* CVirtualPath::NewL(const TDesC& aCombinedUriUniqueId)

	{	

	// TVirtualPathPtr performs the separation of URI and UniqueId if required

	return CVirtualPath::NewL(TVirtualPathPtr(aCombinedUriUniqueId));

	}

EXPORT_C CVirtualPath* CVirtualPath::NewL(const TDesC& aURI, const TDesC& aUniqueId)

	{	

	return CVirtualPath::NewL(TVirtualPathPtr(aURI, aUniqueId));

	}

EXPORT_C CVirtualPath* CVirtualPath::NewL(const TVirtualPathPtr& aPtr)

	{	

	CVirtualPath* self = new (ELeave) CVirtualPath(aPtr);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

EXPORT_C CVirtualPath* CVirtualPath::NewL(RReadStream& aStream)

	{

	CVirtualPath* self = new (ELeave) CVirtualPath(TVirtualPathPtr(KNullDesC()));

	CleanupStack::PushL(self);

	self->InternalizeL(aStream);

	CleanupStack::Pop(self);

	return self;

	}	

CVirtualPath::CVirtualPath(const TVirtualPathPtr& aVirtualPath) : iCombinedUriUniqueIdPtr(KNullDesC16()), iVirtualPathPtr(aVirtualPath) 

	{

	}

void CVirtualPath::ConstructL()

	{

	iURI = iVirtualPathPtr.URI().AllocL();

	iUniqueId = iVirtualPathPtr.UniqueId().AllocL();

	// Make sure the TVirtualPathPtr points to the member

	// variables not the arguments which could be deleted or modified at any time

	iVirtualPathPtr.Set(*iURI, *iUniqueId);

	// Create a combined URI descriptor that stores the URI and UniqueId of the content

	CreateCombinedUriUniqueIdL(*iURI, *iUniqueId);

	iCombinedUriUniqueIdPtr.Set(iCombinedUriUniqueId->Des());

	}

void CVirtualPath::CreateCombinedUriUniqueIdL(const TDesC& aUri, const TDesC& aUniqueId)

	{

	// build a concatenated version of the URI and UniqueId

	// The KCafVirtualPathSeparator is used to separate the URI from the UniqueId

	HBufC* temp = HBufC::NewL(aUri.Length() + 1 + aUniqueId.Length());

	CleanupStack::PushL(temp);

	TPtr combinedUriAndUniqueId = temp->Des();

	combinedUriAndUniqueId.Append(aUri);

	combinedUriAndUniqueId.Append(KCafVirtualPathSeparator());

	combinedUriAndUniqueId.Append(aUniqueId);

	// Set iCombinedUriUniqueId since everything worked up to this point

	delete iCombinedUriUniqueId;

	iCombinedUriUniqueId = NULL;

	iCombinedUriUniqueId = temp;

	iCombinedUriUniqueIdPtr.Set(iCombinedUriUniqueId->Des());

	// dont delete temp since it's now pointed to by iCombinedUriUniqueId

	CleanupStack::Pop(temp);

	}

CVirtualPath::~CVirtualPath()

	{

	delete iURI;

	delete iUniqueId;

	delete iCombinedUriUniqueId;

	}

EXPORT_C const TDesC& CVirtualPath::URI() const

	{

	return *iURI;

	}

EXPORT_C const TDesC& CVirtualPath::UniqueId() const

	{

	return *iUniqueId;

	}

EXPORT_C const TDesC& CVirtualPath::GetCombinedUriUniqueId()

	{

	return iCombinedUriUniqueIdPtr;

	}

EXPORT_C void CVirtualPath::ExternalizeL(RWriteStream& aStream) const

	{

	TCafUtils::WriteDescriptor16L(aStream, *iURI);

	TCafUtils::WriteDescriptor16L(aStream, *iUniqueId);

	}	

void CVirtualPath::InternalizeL(RReadStream& aStream)

	{

	// Allocate space for the URI, UniqueId and CombinedURI

	iURI = TCafUtils::ReadDescriptor16L(aStream);

	iUniqueId = TCafUtils::ReadDescriptor16L(aStream);

	// Create a combined URI and UniqueId for these two

	CreateCombinedUriUniqueIdL(*iURI, *iUniqueId);

	// Set the TVirutalPathPtr member to be the URI and UniqueId

	iVirtualPathPtr.Set(*iURI, *iUniqueId);

	}