// Copyright (c) 2010 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:

// MbufGobbler selector. Used by the Tier Manager to select the access point below

//  (management plane)

//

//

//  This is a 3-plane comms layer implementation example, which has been customised to be a test layer which gobbles and releases ESOCK MBUFs.

//  The MBuf gobbling functionality can be disabled by undefining the macro SYMBIAN_COMMSFW_MBUF_GOBBLER which is specified in mbufgobblerproviders.mmp.

//  When SYMBIAN_COMMSFW_MBUF_GOBBLER is undefined, the source code specified by mbufgobblerproviders.mmp becomes a pass through layer i.e. it passes the data

//  through to the layer above or below without altering it. This makes it useful as a starting point for implementing your own layers / providers;

//  useful documentation on how to customise your own passthrough layer can be found in ..\docs\MbufGobblerLayer.doc

//

/**

 @file

 @internalComponent

*/

#include "mbufgobblerproviderselector.h"

#include "mbufgobblerlog.h"

//extra includes 

#include <ss_select.h> //needed as declares MProviderSelector. 

#include <metadatabase.h> //needed for CommsDat::CMDBSession

#include <ss_tiermanagerutils.h> //needed for ESock::TierManagerUtils

#include <commsdattypesv1_1_partner.h> //needed for CCDTierRecord (iTierRecord)

#include "mbufgobbler_panic.h" //needed for ASSERT_DEBUG

#include "mbufgobblertiermanagerfactory.h" //needed for CMbufGobblerTierManagerFactory::iUid

#include "mbufgobblermetaconnproviderfactory.h" //needed for CMbufGobblerMetaConnectionProviderFactory::iUid

ESock::MProviderSelector* CMbufGobblerProviderSelector::NewL(const Meta::SMetaData& aSelectionPreferences)

	{

	//LOG_STATIC_FUNC

	ASSERT_DEBUG(aSelectionPreferences.IsTypeOf(ESock::TSelectionPrefs::TypeId()), EUnexpectedTSelectionPrefsType);

	CMbufGobblerProviderSelector* self = NULL;

	self = new(ELeave) CMbufGobblerProviderSelector(aSelectionPreferences);

	CleanupStack::PushL(self);

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

	self->iTierRecord = ESock::TierManagerUtils::LoadTierRecordL(TUid::Uid(CMbufGobblerTierManagerFactory::iUid), *dbs);

	ASSERT_DEBUG(static_cast<TUint32>(self->iTierRecord->iDefaultAccessPoint)!=0,EUnexpectedTSelectionPrefsType);

	CleanupStack::Pop(dbs);

	CleanupStack::Pop(self);

	ASSERT_DEBUG(self->iDbs == NULL, EInvalidNullPtr);

	self->iDbs = dbs;

	return self;

	}

CMbufGobblerProviderSelector::CMbufGobblerProviderSelector(const Meta::SMetaData& aSelectionPreferences)

: ASimpleSelectorBase(aSelectionPreferences)

	{

	}

CMbufGobblerProviderSelector::~CMbufGobblerProviderSelector()

	{

	}

void CMbufGobblerProviderSelector::Destroy()

	{

	delete this;

	}

/**

Find or create a Mbufgobbler Meta Connection Provider

*/

ESock::CMetaConnectionProviderBase* CMbufGobblerProviderSelector::FindOrCreateProviderL(TUint aAccessPoint)

	{

	return ASimpleSelectorBase::FindOrCreateProviderL(aAccessPoint);

	}

/**

Perform the selection of a Meta Connection Provider

*/

void CMbufGobblerProviderSelector::SelectL(ESock::ISelectionNotify& aSelectionNotify)

	{	

	ASSERT_DEBUG(iDbs, EInvalidNullPtr);

	ASSERT_DEBUG(iTierRecord, EInvalidNullPtr);

	TUint32 defaultAccessPoint = iTierRecord->iDefaultAccessPoint;

	//Must be set

	User::LeaveIfError(defaultAccessPoint!=0 ? KErrNone : KErrCorrupt);

	// Send select complete with the provider, and the final select complete

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

	aSelectionNotify.SelectComplete(this, NULL);

	}