/*

* Copyright (c) 2003-2005 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:       Class modelling service provider data. The important

*				 service provider data that are part of this class

*				 is metadata information.

*

*/

#include "liwservicedata.h"

#include <liwvariant.h>

#include <liwgenericparam.h>

#include <escapeutils.h>

#include <badesca.h> 

/**

* Creates and returns an instance of \c CLiwServiceData

*

* @return an instance of \c CLiwServiceData

*/

CLiwServiceData* CLiwServiceData::NewL()

{

	CLiwServiceData* srvData = CLiwServiceData::NewLC();

	CleanupStack::Pop(srvData);

	return srvData;

}

/**

* Creates and returns an instance of \c CLiwServiceData.

* Leaves the created instance in the cleanupstack. 

*

* @return an instance of \c CLiwServiceData

*/

CLiwServiceData* CLiwServiceData::NewLC()

{

	CLiwServiceData* srvData = new (ELeave) CLiwServiceData();

	CleanupStack::PushL( srvData );

	srvData->ConstructL();

	return srvData;

}

/**

* Default constructor

*

*/

CLiwServiceData::CLiwServiceData():iDataList(NULL)

{

}

/**

* Instantiates metadata instance

*

*/

void CLiwServiceData::ConstructL()

{

	iDataList = CLiwGenericParamList::NewL();

}

/**

* Destructor. Cleans up the metadata instance

*

*/

CLiwServiceData::~CLiwServiceData()

{

	if(iDataList)

	{

		iDataList->Reset();

		delete iDataList;

	}

}

CLiwGenericParamList* CLiwServiceData::GetMetaData() const

{

	if(iDataList)

		return iDataList;

	else

		return NULL;

}

void CLiwServiceData::AddMetaDataL(const TDesC8& aKey, const TLiwVariant& aValue)

{

	TInt idx(0);

	const TLiwGenericParam* constParam = iDataList->FindFirst(idx,aKey);

	if(constParam)

	{

			TLiwGenericParam* param = const_cast<TLiwGenericParam*>(constParam);

			//list exists already..fetch the value list and append aValue to it

			CLiwList* pValues = const_cast<CLiwList*>(param->Value().AsList());

			pValues->AppendL(aValue);

	}

	else

	{

	 		//key does not exist so far..

			CLiwList* pValues = CLiwDefaultList::NewLC();

			pValues->AppendL(aValue);

			iDataList->AppendL(TLiwGenericParam(aKey,TLiwVariant(pValues)));

			CleanupStack::Pop(pValues);

			pValues->DecRef();

	}

}

/*

 * Adds a metadata name-value pair if not already added. If the key already

 * exists, then the new metadata value (if does not exist already) will be added

 * to the list of values associated with a metadata key.

 *

 * @param aKey		the metadata key to be inserted

 * @param aValue  the metadata value corresponding to the key to be added

 *

 */

void CLiwServiceData::AddMetaDataL(const TDesC8& aKey, const TDesC8& aValue)

{

	HBufC *buff = EscapeUtils::ConvertToUnicodeFromUtf8L(aValue);

	CleanupStack::PushL(buff);

	TPtrC ptr = buff->Des();

    TLiwVariant tempVar(ptr);

    tempVar.PushL();

	this->AddMetaDataL(aKey,tempVar);

	CleanupStack::Pop(&tempVar);

	tempVar.Reset();

	CleanupStack::PopAndDestroy(buff);	

}

/*

 * Removes all the metadata key-value pairs.

 * This is called from service handler implementation if and only

 * if there is an error in parsing. Since, the FW uses SAX parser

 * and if the XML error happens after the metadata entries are 

 * created, the entries should be cleaned up.

 *

 */

void CLiwServiceData::CleanUpMetaData()

{

	iDataList->Reset();

}