/*

* Copyright (c) 2007 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:  This class defines extensions to the functionality of CPosLandmarkDatabase class.

*

*/

#include <ecom/ecom.h>

#include <uri16.h>

#include "EPos_LandmarksUids.hrh"

#include <epos_cposlandmarkdatabaseextended.h>

#include "epos_mposlmdatabasefastcounters.h"

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

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

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

//

EXPORT_C CPosLandmarkDatabaseExtended::CPosLandmarkDatabaseExtended()

    {

    }

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

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

//

EXPORT_C CPosLandmarkDatabaseExtended* CPosLandmarkDatabaseExtended::OpenL()

    {

    TUid implementationUid;

    implementationUid.iUid = KPosLmLocalDatabaseExtImplUid;

    // Check if any implementation supports this protocol

    TUid interfaceUid;

    interfaceUid.iUid = KPosLmDatabaseExtendedIfUid;

    RImplInfoPtrArray implInfoArray;

    REComSession::ListImplementationsL( interfaceUid, implInfoArray );

    if ( implInfoArray.Count() == 0 )

        {

        User::Leave( KErrNotSupported );

        }

    else

        {

        implInfoArray.ResetAndDestroy();

        }

    TAny* ptr = REComSession::CreateImplementationL(

        implementationUid,

        _FOFF( CPosLandmarkDatabaseExtended, iDtorIdKey ),

        NULL );

    return reinterpret_cast<CPosLandmarkDatabaseExtended*>( ptr );

    }

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

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

//

EXPORT_C CPosLandmarkDatabaseExtended* CPosLandmarkDatabaseExtended::OpenL(

    const TDesC&  aDatabaseUri )

    {

    // Determine which implementation id to use by checking the protocol of

    // the URI (e.g. http). If no protocol is specified "file" is used.

    _LIT8( KDefaultProtocol, "file" );

    _LIT( KProtocolDelimiter, "://" );

    TInt position = aDatabaseUri.Find( KProtocolDelimiter );

    TEComResolverParams params;

    HBufC8* protocol8 = NULL;

    if ( position != KErrNotFound && position != 0 )

        {

        protocol8 = HBufC8::NewLC( position + 1 );

        protocol8->Des().FillZ();

        protocol8->Des().Copy( aDatabaseUri.Left( position ) );

        params.SetDataType( *protocol8 );

        }

    else

        {

        params.SetDataType( KDefaultProtocol );

        }

    // Check if any implementation supports this protocol

    TUid interfaceUid;

    interfaceUid.iUid = KPosLmDatabaseExtendedIfUid;

    RImplInfoPtrArray implInfoArray;

    REComSession::ListImplementationsL( interfaceUid, params, implInfoArray );

    if ( implInfoArray.Count() == 0 )

        {

        User::Leave( KErrNotSupported );

        }

    else

        {

        implInfoArray.ResetAndDestroy();

        }

    // Send the protocol name to the Ecom server

    // which determines the implementation.

    HBufC* strPtr = aDatabaseUri.AllocLC();

    TAny* ptr = REComSession::CreateImplementationL(

        interfaceUid,

        _FOFF( CPosLandmarkDatabaseExtended, iDtorIdKey ),

        strPtr,

        params );

    CleanupStack::PopAndDestroy( strPtr );

    if ( protocol8 )

        {

        CleanupStack::PopAndDestroy( protocol8 );

        }

    return reinterpret_cast<CPosLandmarkDatabaseExtended*>( ptr );

    }

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

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

//

EXPORT_C CPosLandmarkDatabaseExtended::~CPosLandmarkDatabaseExtended()

    {

    }

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

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

//

EXPORT_C TInt CPosLandmarkDatabaseExtended::LandmarksCount()

    {

    MPosLmDatabaseFastCounters* extension = 

        reinterpret_cast<MPosLmDatabaseFastCounters*>( GetExtension( TUid::Uid( KPosLmDatabaseFastCountersIfUid ) ) );

    if ( extension )

        {

        return extension->TotalLandmarksCount();

        }

    else

        {

        return KErrNotSupported;

        }

    }

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

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

//

EXPORT_C TInt CPosLandmarkDatabaseExtended::CategoriesCount()

    {

    MPosLmDatabaseFastCounters* extension = 

        reinterpret_cast<MPosLmDatabaseFastCounters*>( GetExtension( TUid::Uid( KPosLmDatabaseFastCountersIfUid ) ) );

    if ( extension )

        {

        return extension->TotalCategoriesCount();

        }

    else

        {

        return KErrNotSupported;

        }

    }