/*

* Copyright (c) 2008-2009 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: S60 IP TM selector implementation

*

*/

/**

@file s60tiermanagerselector.cpp

S60 IP TM selector implementation

*/

#include <comms-infras/ss_log.h>

#include <comms-infras/ss_tiermanagerutils.h>

#include <commsdattypesv1_1.h> // CommsDat

#include <es_connpref.h>    //TConnIdList

#include <commdbconnpref.h>

#ifdef SYMBIAN_ENABLE_SPLIT_HEADERS

#include <commsdattypeinfov1_1_internal.h>

#include <commsdattypesv1_1_partner.h> 

#endif

#include <extendedconnpref.h>

#include "s60extendedtmselector.h"

#include "s60tiermanagerfactory.h"

#include "s60mcpr.h"

#include <comms-infras/esock_params_internal.h>

using namespace ESock;

using namespace CommsDat;

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

// IpProto Tier Manager's UID.

// Since meaning of the selection policy id changes with

// the legacy flavor it is difficult to derive the next layer

// tier's id dynamically when supporting all of the legacy scenarios.

// At the same time it is known that for all of these legacy

// setups this is and always will be the only next layer tier manager.

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

static const TUid KLegacyNextLayerTierId = { 0x10281DF0 }; //CIPProtoTierManagerFactory::iUid

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

// CExtendedS60SelectorBase::CExtendedS60SelectorBase

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

//

CExtendedS60SelectorBase::CExtendedS60SelectorBase(  TUid aTierId, const ESock::RConnPrefList& aConnPrefList )

    :    ASimpleSelectorBase( )

    {

    iTierId = aTierId;

    iConnPrefList = aConnPrefList;

    }

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

// CExtendedS60SelectorBase::~CExtendedS60SelectorBase

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

//

CExtendedS60SelectorBase::~CExtendedS60SelectorBase()

    {

    }

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

// CExtendedS60SelectorBase::SelectL

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

//

void CExtendedS60SelectorBase::SelectL(ISelectionNotify& aSelectionNotify)

    {

    //This code doesn't need to be in a seperate selector. It could be moved to

    //a transition if the method FindOrCreateProviderL was re-created in

    //another file (it is currently inherited from ASimpleSelectorBase)

    CMDBSession* dbs = CMDBSession::NewLC(KCDVersion1_2);

    iTierRecord = TierManagerUtils::LoadTierRecordL(iTierId,*dbs);

    CleanupStack::Pop();

    iDbs = dbs;

    //__ASSERT_DEBUG(iDbs, User::Panic(KSpecAssert_ESockCrPrvTMSelC, 1));

    //__ASSERT_DEBUG(iTierRecord, User::Panic(KSpecAssert_ESockCrPrvTMSelC, 2));

    TUint accessPoint = 0;

    CCDAccessPointRecord* apRec;

    TUid tierId;

    TUint selected = 0;

    // Get sub session unique id

    ESock::RConnPrefList::TIter<TConnCSRPref> iterCSR = iConnPrefList.getIter<TConnCSRPref>();

    // If no prefs in list return error

    if (iterCSR.IsEnd())

        {

        User::Leave(KErrArgument);

        }

    //This iterator runs through all the instances of TConnCSRPref

    while(!iterCSR.IsEnd())

        {

        iSubSessionUniqueId = iterCSR->SubSessionUniqueId();

        iterCSR++;

        }

    //This iterator links to all the elements of TExtendedConnPref that exist in the list

    ESock::RConnPrefList::TIter<TExtendedConnPref> iterAP = iConnPrefList.getIter<TExtendedConnPref>();

    // If no prefs in list return error

    if (iterAP.IsEnd())

        {

        User::Leave(KErrArgument);

        }

    //This iterator runs through all the instances of TExtendedConnPref

    while(!iterAP.IsEnd())

        {

        accessPoint = iTierRecord->iDefaultAccessPoint;

        //The access point record that that access point represents is retrived

        apRec = TierManagerUtils::LoadAccessPointRecordL(accessPoint,*iDbs);

        tierId = TierManagerUtils::MapElementIdToTagId(apRec->iTier, *iDbs);

        delete apRec;

        // If the access point is related to this tier manager the provider

        // is created

        if(iTierId == tierId)

            {

            aSelectionNotify.SelectComplete(this, FindOrCreateProviderL(accessPoint));

            ++selected;

            iterAP++;

            // For now we accept only one instance of TExtendedConnPref 

            break;

            }

        else

            {

            LOG_DETAILED( ESockLog::Printf(KCoreTMgrSelSupSubTag, _L("CCoreProviderSelectorSuper %08x:\t AP %d not in tier %08x"), this, accessPoint, iTierId) );

            iterAP++;

            }

        }

    if (selected == 0)

        {

        LOG_DETAILED( ESockLog::Printf(KCoreTMgrSelSupSubTag, _L("CCoreProviderSelectorSuper %08x:\t No APs selected [Tier: %08x]"), this, iTierId) );

        User::Leave(KErrArgument);

        }

    aSelectionNotify.SelectComplete(this, NULL);

    return;

    }

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

// CExtendedS60SelectorBase::FindOrCreateProviderL

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

//

CMetaConnectionProviderBase* CExtendedS60SelectorBase::FindOrCreateProviderL( TUint aAccessPoint )

    {

    ASSERT(aAccessPoint); //Should not be 0 now.

    //Find factory

    TUid mCprUid = TierManagerUtils::ReadMCprUidL( aAccessPoint, *iDbs );

    CMetaConnectionProviderFactoryBase* factory = 

        static_cast<CMetaConnectionProviderFactoryBase*>(iMetaContainer.FindOrCreateFactoryL( mCprUid ));

    //Create the provider

    TUid tierId = TUid::Uid( iTierRecord->iRecordTag );

    TProviderInfo providerInfo( tierId, aAccessPoint );

    TUid tierImplUid = TierManagerUtils::MapTierIdtoTierImplIdL(tierId,*iDbs);

    TMetaConnectionFactoryQuery query( providerInfo, tierImplUid );

    //We are not looking for an existing provider, we always create a new one.

    //This is the legacy selection (can also be the legacy attach, one layer deep selection)

    CMetaConnectionProviderBase* provider = static_cast<CMetaConnectionProviderBase*>( factory->CreateObjectL( query ));

    CS60MetaConnectionProvider* prov = static_cast<CS60MetaConnectionProvider*>( provider );

    CleanupStack::PushL( provider );

    // Provision selection preferences to S60 NetMCPR.

    prov->SetConnPrefList( iConnPrefList );

    prov->SetSubSessionUniqueId( iSubSessionUniqueId );

    // Change the provider info so that this provider is never found by other selections

    const TProviderInfo& pi = provider->ProviderInfo();

    provider->SetProviderInfo( TProviderInfo( pi.TierId(), pi.APId(), provider )); //This provider will never be found

    // Override the selection policy as we always do for legacy prefs

    ASSERT(provider->AccessPointConfig().FindExtension(TOverridenSelectionPrefsExt::TypeId())==NULL);

    RMetaExtensionContainer mec;

    mec.Open(provider->AccessPointConfig());

    CleanupClosePushL(mec);

    TOverridenSelectionPrefsExt* ext = new (ELeave) TOverridenSelectionPrefsExt( KLegacyNextLayerTierId, iSelectionPrefs );

    CleanupStack::PushL( ext );

    mec.AppendExtensionL( ext ); //The ownership of the extension goes to AccessPointConfig now.

    CleanupStack::Pop( ext );

    provider->AccessPointConfig().Close();

    provider->AccessPointConfig().Open(mec);

    CleanupStack::PopAndDestroy(&mec);

    CleanupStack::Pop( provider );

    provider->IncrementBlockingDestroy();

    return provider;

    }