/** @file

* Copyright (c) 2005-2006 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:  Content Directory

*

*/

// INCLUDE FILES

#include "upnpmapbase.h"

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

// CUpnpMapBase::CUpnpMapBase

// C++ default constructor can NOT contain any code, that

// might leave.

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

//

CUpnpMapBase::CUpnpMapBase()

{      

}

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

// CUpnpMapBase::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CUpnpMapBase::ConstructL()

{

}

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

// CUpnpMapBase::Get

// (other items were commented in a header).

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

//

TAny* CUpnpMapBase::Get(const TDesC8& aKey)

{

    CUpnpMapElement* mapElement = iFirst;

    TAny* buf = NULL;

    while(mapElement != 0)

    {

        if(mapElement->Key() == aKey)

        {

            buf = mapElement->Value();

            break;

        }

        mapElement = mapElement->Next();

    }

    return buf;

}

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

// CUpnpMapBase::PutL

// (other items were commented in a header).

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

//

void CUpnpMapBase::PutL(const TDesC8& aKey, TAny* aValue)

{

    CUpnpMapElement* newEl = CUpnpMapElement::NewL(aKey, aValue);

    newEl->SetNext(iFirst);

    iFirst = newEl;

}

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

// CUpnpMapBase::Remove

// (other items were commented in a header).

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

//

TAny* CUpnpMapBase::Remove(const TDesC8& aKey)

{

    if( !iFirst ) // empty map

    {

        return NULL;

    }

    TAny* removed = NULL;

    // if first element to be removed

    if( iFirst->Key() == aKey )

    {

        // remove first element

        removed = iFirst->Value();

        CUpnpMapElement* next = iFirst->Next();

        delete iFirst;

        iFirst = next;

    }

    else

    {   

        CUpnpMapElement* prevElement = iFirst;

        CUpnpMapElement* element = iFirst->Next();

        while(element != 0)

        {

            if( element->Key() == aKey )

            {

                prevElement->SetNext( element->Next() );

                removed = element->Value();

                delete element;

                break;

            }

            else

            {

                prevElement = element;

                element = element->Next();

            }

        }

    }

    return removed;

}

// End of File