/*

* Copyright (c) 2003-2009 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 <e32base.h>

#include <s32strm.h>

#include "cafutils.h"

using namespace ContentAccess;

HBufC* TCafUtils::ReadDescriptor16L(RReadStream& aStream)

	{

	// Read the unicode data from the stream

	TInt dataLength = aStream.ReadInt32L();

	HBufC* iData = HBufC::NewL(dataLength);

	CleanupStack::PushL(iData);

	if(dataLength > 0)

		{

		TPtr dataPtr = iData->Des();

		aStream.ReadL(dataPtr, dataLength);

		}

	CleanupStack::Pop(iData);

	return iData;

	}

void TCafUtils::WriteDescriptor16L(RWriteStream& aStream, const TDesC& aDescriptor)

	{

	// Write unicode data to the stream

	aStream.WriteInt32L(aDescriptor.Length());

	aStream.WriteL(aDescriptor);

	}	

HBufC8* TCafUtils::ReadDescriptor8L(RReadStream& aStream)

	{

	// Read the 8 bit data from a stream

	TInt dataLength = aStream.ReadInt32L();

	HBufC8* iData = HBufC8::NewL(dataLength);

	CleanupStack::PushL(iData);

	if(dataLength > 0)

		{

		TPtr8 dataPtr = iData->Des();

		aStream.ReadL(dataPtr, dataLength);

		}

	CleanupStack::Pop(iData);

	return iData;

	}

void TCafUtils::ReadDescriptor8L(RReadStream& aStream, TDes8& aBuffer)

	{

	aBuffer.SetLength(0);

	// Read the 8 bit data from a stream

	TInt dataLength = aStream.ReadInt32L();

	if(dataLength > aBuffer.MaxLength())

		{

		User::Leave(KErrOverflow);

		}

	if(dataLength > 0)

		{

		aStream.ReadL(aBuffer, dataLength);

		}

	}

void TCafUtils::WriteDescriptor8L(RWriteStream& aStream, const TDesC8& aDescriptor)

	{

	// Write 8 bit data to a stream

	aStream.WriteInt32L(aDescriptor.Length());

	aStream.WriteL(aDescriptor);

	}	

// DLL entry point - only for EKA1