/*

* Copyright (c) 2008 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:  factory class for Engine component

*

*/

// INCLUDE FILES

#include "cvimpstenginefactory.h"

#include <e32std.h>

#include <barsc.h>

#include <gulutil.h>

#include <coemain.h>

#include "cvimpstengineservicetablefetcher.h"

#include "cvimpstengine.h"

#include "cvimpststoragemanagerfactory.h"

#include <spnotifychange.h>

#include <spsettings.h>

#include "cvimpstenginecvlistener.h"

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

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

// CVIMPSTEngineFactory::InstanceL

// Create an instance of the ximp manager

// behaving as singleton object already created then return same instance.

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

//

EXPORT_C MVIMPSTEngineFactory* CVIMPSTEngineFactory::InstanceL()

    {

    CVIMPSTEngineFactory* singleton;

    singleton = static_cast<CVIMPSTEngineFactory*> (Dll::Tls());

    if( !singleton )

        {

        singleton = CVIMPSTEngineFactory::NewLC();

        User::LeaveIfError( Dll::SetTls( static_cast<TAny*> (singleton ) ));

        CleanupStack::Pop(singleton);

        }

   	singleton->IncreamentRefereneCount();

    return (MVIMPSTEngineFactory*)singleton;

    }

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

// CVIMPSTEngineFactory::Release

// Release the singelton

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

//

EXPORT_C void CVIMPSTEngineFactory::Release()

    {

    CVIMPSTEngineFactory* singleton;

    singleton = static_cast<CVIMPSTEngineFactory*>(Dll::Tls());

    if( singleton && !singleton->DecreamentRefereneCount())

        {

        delete singleton;

        Dll::SetTls( NULL ) ;

        }

    }

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

// CVIMPSTEngineFactory::NewLC

// Object creation using two phase construction

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

//

CVIMPSTEngineFactory* CVIMPSTEngineFactory::NewLC()

    {

    CVIMPSTEngineFactory* self = new (ELeave) CVIMPSTEngineFactory();

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

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

// CVIMPSTEngineFactory::ConstructL

// Symbian OS default constructor can leave.

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

//

void CVIMPSTEngineFactory::ConstructL()

    {

    CVIMPSTStorageManagerFactory::InitialiseLibraryL();

    //only 1 instance of iServiceTableFetcher shared between services

    iServiceTableFetcher = CVIMPSTEngineServiceTableFetcher::NewL();

    RArray<TUint32> serviceIdArray;

    CleanupClosePushL( serviceIdArray );

    //Get the available services

    iServiceTableFetcher->GetMasterServiceIdsL(serviceIdArray);

    // iterate the service array

    for ( TInt index = 0; index < serviceIdArray.Count() ; index++ )        

        {

        //create seperate engine instance for each service

        //and provide the same to the UI

        CVIMPSTEngine* item = 

        		CVIMPSTEngine::NewL(serviceIdArray[ index ], 

        		*iServiceTableFetcher);

        iServiceItems.Append(item);

        }

    CleanupStack::PopAndDestroy(); //serviceIdArray 

    //register for service table notifications

	RArray<TUint> serviceIds;

    CleanupClosePushL( serviceIds );

    iSpNotifyChange = CSPNotifyChange::NewL( *this );    

    iSpNotifyChange->NotifyChangeL( serviceIds );

    CleanupStack::PopAndDestroy( &serviceIds ) ;    

    iCVlistener = CVIMPSTEngineCVListener::NewL( *iServiceTableFetcher );

    }

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

// CVIMPSTEngineFactory::IncreamentRefereneCount

// Object creation using two phase construction

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

//

void CVIMPSTEngineFactory::IncreamentRefereneCount()

    {

    iReferenceCount++;

    }

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

// CVIMPSTEngineFactory::DecreamentRefereneCount

// Object creation using two phase construction

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

//

TInt CVIMPSTEngineFactory::DecreamentRefereneCount()

    {

    iReferenceCount--;

    return iReferenceCount;

    }

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

// CVIMPSTEngineFactory::CVIMPSTEngineFactory

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

CVIMPSTEngineFactory::CVIMPSTEngineFactory()

	{

	}

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

// CVIMPSTEngineFactory::~CVIMPSTEngineFactory

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

CVIMPSTEngineFactory::~CVIMPSTEngineFactory()

    {

    CVIMPSTStorageManagerFactory::Release();

    delete iSpNotifyChange;

    iSpNotifyChange = NULL;

    delete iServiceTableFetcher;

    //delete all the create engine instances

    iServiceItems.ResetAndDestroy();

    iServiceItems.Close();

    delete iCVlistener;

    iCVlistener = NULL;

    }

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

// CVIMPSTEngineFactory::GetServiceEnginePtr

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

void CVIMPSTEngineFactory::GetServiceEnginePtr

					(RPointerArray<MVIMPSTEngine>& serviceIdArray) const

	{

	TInt count = iServiceItems.Count() ;

    // iterate the service array

    for ( TInt index = 0; index < count ; index++ )        

        {  

        //append the engines created for each service

        serviceIdArray.Append(iServiceItems[index]);

        }    

	}

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

// CVIMPSTEngineFactory::GetServiceEnginePtr

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

TInt CVIMPSTEngineFactory::FindService(

				TUint aServiceId ) const

	{

	TInt count = iServiceItems.Count() ;

	TInt ret = KErrNotFound;

    // iterate the service array

    for ( TInt index = 0; index < count ; index++ )        

        {  

        //append the engines created for each service

        if(iServiceItems[index]->ServiceId() == aServiceId)

        	{

        	ret = index;

        	break;

        	}

        }  

    return ret;  

	}

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

// CVIMPSTEngineFactory::HandleNotifyChange()

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

//

void CVIMPSTEngineFactory::HandleNotifyChange(

    TServiceId aServiceId )

    {

	TBool newService = EFalse;

    if ( KErrNotFound == FindService(aServiceId) )

        {

        newService = ETrue;

        }

    TRAP_IGNORE( iServiceTableFetcher->DoHandleNotifyChangeL( aServiceId, newService, GetEngine(aServiceId) ) );

    }

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

// CVIMPSTEngineFactory::HandleError()

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

//

void CVIMPSTEngineFactory::HandleError( TInt /*aError*/ )

    {

    }			

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

// CVIMPSTEngineFactory::GetEngine()

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

//

MVIMPSTEngine* CVIMPSTEngineFactory::GetEngine( TServiceId aServiceId )

    {

    TInt count = iServiceItems.Count();

    MVIMPSTEngine* engine = NULL;

    for(int i=0 ; i<count ; i++)

	    {

	    if(iServiceItems[i]->ServiceId() == aServiceId)

		    {

		     engine = iServiceItems[i];

		    }

	    }

    return engine;

    }			

//  End of File