/*

* Copyright (c) 2005 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:  ConML parser/generator

*

*/

// -----------------------------------------------------------------------------

// Includes

// -----------------------------------------------------------------------------

#include "sconxmlworkspace.h"

// -----------------------------------------------------------------------------

// CXMLWorkspace

// -----------------------------------------------------------------------------

CXMLWorkspace::CXMLWorkspace()

	{

	}

// -----------------------------------------------------------------------------

// NewL

// -----------------------------------------------------------------------------

CXMLWorkspace* CXMLWorkspace::NewL()

	{

	CXMLWorkspace* self = new (ELeave) CXMLWorkspace();

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(); // self

	return self;

	}

// -----------------------------------------------------------------------------

// ConstructL

// -----------------------------------------------------------------------------

void CXMLWorkspace::ConstructL()

	{

	iBuffer = CBufFlat::NewL(32);

	iTransactions = new (ELeave) RArray<TUint>();

	}

// -----------------------------------------------------------------------------

// ~CXMLWorkspace

// -----------------------------------------------------------------------------

CXMLWorkspace::~CXMLWorkspace()

	{

	delete iBuffer;

	if( iTransactions )

		{

		iTransactions->Reset();

		}

	delete iTransactions;

	}

// -----------------------------------------------------------------------------

// BeginTransaction

// -----------------------------------------------------------------------------

void CXMLWorkspace::BeginTransaction()

	{

	iTransactions->Append(Size());

	}

// -----------------------------------------------------------------------------

// Commit

// -----------------------------------------------------------------------------

TInt CXMLWorkspace::Commit()

	{

	if( iTransactions->Count() == 0 )

		{

		return KErrGeneral;

		}

	iTransactions->Remove(iTransactions->Count() - 1);

	return KErrNone;

	}

// -----------------------------------------------------------------------------

// CommitAll

// -----------------------------------------------------------------------------

void CXMLWorkspace::CommitAll()

	{

	iTransactions->Reset();

	}

// -----------------------------------------------------------------------------

// Rollback

// -----------------------------------------------------------------------------

TInt CXMLWorkspace::Rollback()

	{

	if( iTransactions->Count() == 0 )

		{

		return KErrGeneral;

		}

	TUint begin = iTransactions->operator[](iTransactions->Count() - 1);

	Delete(begin, Size() - begin);

	iTransactions->Remove(iTransactions->Count() - 1);

	return KErrNone;

	}

// -----------------------------------------------------------------------------

// Reset

// -----------------------------------------------------------------------------

void CXMLWorkspace::Reset()

	{

	iBuffer->Reset();

	}

// -----------------------------------------------------------------------------

// WriteL

// -----------------------------------------------------------------------------

void CXMLWorkspace::WriteL( const TDesC8& aData )

	{

	TRAPD(err, iBuffer->InsertL(iBuffer->Size(), aData));

	if( err != KErrNone )

		{

		User::Leave(KErrTooBig);

		}

	}

// -----------------------------------------------------------------------------

// WriteL

// -----------------------------------------------------------------------------

void CXMLWorkspace::WriteL( const TUint8 aData )

	{

	WriteL(TPtrC8(&aData, 1));

	}

// -----------------------------------------------------------------------------

// Buffer

// -----------------------------------------------------------------------------

TPtrC8 CXMLWorkspace::Buffer()

	{

	return iBuffer->Ptr(0);

	}

// -----------------------------------------------------------------------------

// FreeSize

// -----------------------------------------------------------------------------

TInt CXMLWorkspace::FreeSize()

	{

	return (KMaxTInt32 - Size());

	}

// -----------------------------------------------------------------------------

// MaxSize

// -----------------------------------------------------------------------------

TInt CXMLWorkspace::MaxSize()

	{

	return KMaxTInt32;

	}

// -----------------------------------------------------------------------------

// Size

// -----------------------------------------------------------------------------

TInt CXMLWorkspace::Size()

	{

	return iBuffer->Size();

	}

// -----------------------------------------------------------------------------

// Delete

// -----------------------------------------------------------------------------

void CXMLWorkspace::Delete( TInt aPos, TInt aLength )

	{

	iBuffer->Delete(aPos, aLength);

	}