/** @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:  CUpnpSubscriberLibrary

*

*/

// INCLUDE FILES

#include "upnpsubscriberlibrary.h"

#include "upnpgenamessage.h"

#include "upnpcommonupnplits.h"

#define KLogFile _L("UPnPStack.txt")

#include "upnpcustomlog.h"

#include "upnpsubscriberlibraryobserver.h"

#include "upnpsubscriberlibraryelement.h"

// ============================ MEMBER FUNCTIONS ===============================

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

// CUpnpSubscriberLibrary::CUpnpSubscriberLibrary

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

// might leave.

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

//

CUpnpSubscriberLibrary::CUpnpSubscriberLibrary( 

                                      MUpnpSubscriberLibraryObserver& aObserver )

                                            : iObserver( aObserver )

{

}

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

// CUpnpSubscriberLibrary::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CUpnpSubscriberLibrary::ConstructL()

{

}

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

// CUpnpSubscriberLibrary::NewL

// Two-phased constructor.

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

//

CUpnpSubscriberLibrary* CUpnpSubscriberLibrary::NewL( 

                                        MUpnpSubscriberLibraryObserver& aObserver )

{

    CUpnpSubscriberLibrary* self = new (ELeave) CUpnpSubscriberLibrary( aObserver );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

}

// Destructor

CUpnpSubscriberLibrary::~CUpnpSubscriberLibrary()

{

    iElementArray.ResetAndDestroy();

    iElementArray.Close();

}

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

// CUpnpSubscriberLibrary::SubscriberLibrary

//

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

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

//

RPointerArray<CUpnpSubscriberLibraryElement> 

                CUpnpSubscriberLibrary::SubscriberLibrary() const

{

    return iElementArray;

}

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

// CUpnpSubscriberLibrary::AddInfoL

//

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

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

//

TUpnpErrorCode CUpnpSubscriberLibrary::AddInfoL( 

                                    CUpnpGenaMessage* aMessage, 

                                    CUpnpSubscriberLibraryElement** aElement )

{

    if ( !aMessage || !aElement )

    {

        return EUndefined;

    }

    LOGS("CUpnpSubscriberLibrary::AddInfoL");

    if ( (   aMessage->Nt().Compare(KNoHeader) != 0 

          || aMessage->Callback().Compare(KNoHeader) != 0 )

          && aMessage->Sid().Compare(KNoHeader) != 0 )

    {

        return EBadRequest;              

    }

    TInt index = Find( aMessage->Sid() );

    TUpnpErrorCode error;

    if ( index != KErrNotFound )

    {

        // already a subscriber -> renew

        CUpnpSubscriberLibraryElement* element = iElementArray[index];

        *aElement = element;

        error = element->RenewSubscriberL( aMessage );

        return error;

    }

    else

    {

        // not found -> new subscriber

        CUpnpSubscriberLibraryElement* element = 

                                CUpnpSubscriberLibraryElement::NewL( *this );

        CleanupStack::PushL( element );

        *aElement = element;

        error = element->AddSubscriberL( aMessage );

        if ( error == EHttpOk )

        {

                User::LeaveIfError(iElementArray.Append( *aElement ));

                CleanupStack::Pop( element );

        }

        else

        {

            CleanupStack::PopAndDestroy( element );

            *aElement = NULL;

        }

        return error;

    }

}

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

// CUpnpSubscriberLibrary::Find

//

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

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

//

TInt CUpnpSubscriberLibrary::Find( const TDesC8& aSid )

{

    if ( aSid.Length() > 0 )

    {

        for ( TInt i = 0; i < iElementArray.Count(); i++ )

        {

            if ( aSid.Compare( iElementArray[i]->Sid() ) == 0 )

            {

                return i;

            }

        }

    }

    return KErrNotFound;

}

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

// CUpnpSubscriberLibrary::Remove

//

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

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

//

TUpnpErrorCode CUpnpSubscriberLibrary::Remove( const TDesC8& aSid )

{

    LOGS("CUpnpSubscriberLibrary::Remove");

    TInt result = Find( aSid );

    if ( result != KErrNotFound )

    {

        CUpnpSubscriberLibraryElement* elem = iElementArray[result];

        iElementArray.Remove( result );

        iElementArray.GranularCompress();

        iObserver.SubscriberRemoved( elem , result );

        delete elem;

        LOGS1("  removed, count: %i", iElementArray.Count());

        return EHttpOk;

    }

    return EPreconditionFailed;

}

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

// CUpnpSubscriberLibrary::TimeoutExpiredL

//

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

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

//

void CUpnpSubscriberLibrary::TimeoutExpiredL( CUpnpTimeoutElement* aElement )

{

    if ( !aElement )

    {

        return;

    }

    CUpnpSubscriberLibraryElement* elem 

        = static_cast<CUpnpSubscriberLibraryElement*>(aElement);

    LOGS("CUpnpSubscriberLibrary::TimeoutExpiredL");

    switch ( elem->Renew() )

    {

        case CUpnpTimeoutElement::ERenew:

        {

            LOGS("  is \"Infinite\", renewed");

            elem->SetTimeout( KMaxRenewTimeout );

        }

            break;

        case CUpnpTimeoutElement::EOnce:

        {       

            for ( TInt i = 0; i < iElementArray.Count(); i++ )

            {

                if ( elem == iElementArray[i] )

                {

                    iElementArray.Remove(i);

                    iElementArray.GranularCompress();

                    iObserver.SubscriberRemoved( elem, i );

                    LOGS1("  expired, count: %i", iElementArray.Count());

                    delete elem;

                }

            }

        }

            break;

        default:

            break;

    }

}

//  End of File