/*

* Copyright (c) 2005 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: Operation for exporting landmarks from a database.

*

*

*/

// INCLUDE FILES

#include    <epos_cposlmresourcereader.h>

#include    <eposlmasyncops.rsg>

#include    <EPos_CPosLandmarkEncoder.h>

#include    <EPos_LandmarksErrors.h>

#include    <EPos_PosLmImplExtension.h>

#include    <epos_poslmlandmarkhandler.h>

#include    <epos_poslmcategoryhandler.h>

#include    <epos_cposlmglobalcategoryreader.h>

#include    "EPos_CPosLmLocalExportOp.h"

#include    "epos_cposlmlocaldatabase.h"

#include    "epos_cposlmlocaldbaccess.h"

#include    "EPos_LocalLandmarks.h"

//CONSTANTS

const TReal32 KOperationDone = 1;

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

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

// CPosLmLocalExportOp::CPosLmLocalExportOp

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

// might leave.

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

//

CPosLmLocalExportOp::CPosLmLocalExportOp(

    CPosLmLocalDatabase& aDb,

    CPosLandmarkEncoder& aLandmarkEncoder,

    CPosLandmarkDatabase::TTransferOptions aTransferOptions)

:   CPosLmLocalOperation(aDb),

    iLandmarkEncoder(&aLandmarkEncoder),

    iTransferOptions(aTransferOptions),

    iStatusFlag(KPosLmOperationNotComplete),

    iCurrentIsLm(ETrue),

    iNrOfSubOperations(1)

    {

    }

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

// CPosLmLocalExportOp::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CPosLmLocalExportOp::ConstructL(

    const RArray<TPosLmItemId>& aLandmarkIdArray)

    {

    CPosLandmarkDatabase::TTransferOptions invalidOptions =

        iTransferOptions &

        ~CPosLandmarkDatabase::EIncludeCategories &

        ~CPosLandmarkDatabase::EIncludeGlobalCategoryNames;

    __ASSERT_ALWAYS(invalidOptions == CPosLandmarkDatabase::EDefaultOptions,

        Panic(KPosLandmarksClientPanic, EPosLmInvalidArgument));

    BaseConstructL();

    if (aLandmarkIdArray.Count() == 0)

        {

        User::Leave(KErrArgument);

        }

    if ((iTransferOptions & CPosLandmarkDatabase::EIncludeCategories) &&

        (iTransferOptions & CPosLandmarkDatabase::EIncludeGlobalCategoryNames))

        {

        iReader = CPosLmGlobalCategoryReader::NewL();

        }

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

        {

        User::LeaveIfError(iLandmarkIdArray.Append(aLandmarkIdArray[i]));

        }

    ReadInfoFromResourceFileL();

    AquireLockL(CPosLmLocalDatabase::EReadLock);

    }

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

// CPosLmLocalExportOp::NewL

// Two-phased constructor.

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

//

CPosLmLocalExportOp* CPosLmLocalExportOp::NewL(

    CPosLmLocalDatabase& aDb,

    CPosLandmarkEncoder& aLandmarkEncoder,

    const RArray<TPosLmItemId>& aLandmarkIdArray,

    CPosLandmarkDatabase::TTransferOptions aTransferOptions)

    {

    CPosLmLocalExportOp* self = new (ELeave)

        CPosLmLocalExportOp(aDb, aLandmarkEncoder, aTransferOptions);

    CleanupStack::PushL(self);

    self->ConstructL(aLandmarkIdArray);

    CleanupStack::Pop(self);

    return self;

    }

// Destructor

CPosLmLocalExportOp::~CPosLmLocalExportOp()

    {

    delete iReader;

    iLandmarkIdArray.Close();

    iCategoryIdArray.Close();

    }

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

// CPosLmLocalExportOp::NextStepL

//

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

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

//

TInt CPosLmLocalExportOp::NextStepL(

    TReal32& aProgress)

    {

    if (iCurrentIsLm)

        {

        CPosLandmark* lm = ReadLmFromDbLC(iLandmarkIdArray[iCurrentLm++]);

        iLandmarkEncoder->AddLandmarkL(*lm);

        if (iTransferOptions & CPosLandmarkDatabase::EIncludeCategories)

            {

            iCategoryIdArray.Close();

            iCurrentCategory = 0;

            lm->GetCategoriesL(iCategoryIdArray);

            if (iCategoryIdArray.Count() != 0)

                {

                iCurrentIsLm = EFalse;

                }

            }

        CleanupStack::PopAndDestroy(lm);

        }

    else

        {

        for (TInt i = 0;

            i < iNrOfSubOperations &&

                iCurrentCategory < iCategoryIdArray.Count(); i++)

            {

            CPosLandmarkCategory* category =

                ReadCategoryFromDbLC(iCategoryIdArray[iCurrentCategory++]);

            if (iTransferOptions &

                CPosLandmarkDatabase::EIncludeGlobalCategoryNames)

                {

                SetPredefinedGlobalNameL(category);

                }

            iLandmarkEncoder->AddCategoryForLatestLandmarkL(*category);

            CleanupStack::PopAndDestroy(category);

            if (iCurrentCategory == iCategoryIdArray.Count())

                {

                iCurrentIsLm = ETrue;

                }

            }

        }

    if (iCurrentLm == iLandmarkIdArray.Count() &&

        iCurrentCategory == iCategoryIdArray.Count())

        {

        iStatusFlag = KErrNone;

        aProgress = KOperationDone;

        ReleaseLock();

        }

    else if (iCurrentIsLm)

        {

        aProgress = TReal32(iCurrentLm) / iLandmarkIdArray.Count();

        }

    else

        {

        aProgress = TReal32(iCurrentLm - 1) / iLandmarkIdArray.Count() +

                    TReal32(iCurrentCategory + 1) /

                    (iCategoryIdArray.Count() + 1) /

                    iLandmarkIdArray.Count();

        }

    return iStatusFlag;

    }

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

// CPosLmLocalExportOp::HandleError

//

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

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

//

void CPosLmLocalExportOp::HandleError(

    TInt& aError)

    {

    iStatusFlag = aError;

    ReleaseLock();

    }

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

// CPosLmLocalExportLandmarksOp::ReadLmFromDbLC

//

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

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

//

CPosLandmark* CPosLmLocalExportOp::ReadLmFromDbLC(TPosLmItemId aId)

    {

    CPosLandmark* landmark = CPosLandmark::NewLC();

    PosLmImplExtension::SetLandmarkIdL(*landmark, aId);

    PosLmLandmarkHandler::ReadLandmarkL(*iDb->DatabaseAccess(), *landmark);

    return landmark;

    }

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

// CPosLmLocalExportLandmarksOp::ReadCategoryFromDbLC

//

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

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

//

CPosLandmarkCategory* CPosLmLocalExportOp::ReadCategoryFromDbLC(

    TPosLmItemId aId)

    {

    CPosLandmarkCategory* category = CPosLandmarkCategory::NewLC();

    PosLmImplExtension::SetCategoryIdL(*category, aId);

    PosLmCategoryHandler::ReadCategoryL(*iDb->DatabaseAccess(), *category);

    return category;

    }

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

// CPosLmLocalExportLandmarksOp::SetPredefinedGlobalNameL

//

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

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

//

void CPosLmLocalExportOp::SetPredefinedGlobalNameL(

    CPosLandmarkCategory* aCategory)

    {

    TPosLmGlobalCategory globalCat = aCategory->GlobalCategory();

    if (globalCat != KPosLmNullGlobalCategory)

        {

        TBool catFound = EFalse;

        for (TInt i = 0; i < iReader->Count() && !catFound; i++)

            {

            CPosLandmarkCategory* readerCategory = iReader->GlobalCategoryLC(i);

            TPtrC catName;

            if (readerCategory->GlobalCategory() == globalCat &&

                readerCategory->GetCategoryName(catName) == KErrNone)

                {

                catFound = ETrue;

                aCategory->SetCategoryNameL(catName);

                }

            CleanupStack::PopAndDestroy(readerCategory);

            }

        }

    }

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

// CPosLmLocalExportLandmarksOp::ReadInfoFromResourceFileL

//

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

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

//

void CPosLmLocalExportOp::ReadInfoFromResourceFileL()

    {

    CPosLmResourceReader* resources =

        CPosLmResourceReader::NewLC(KPosLocalSuboperationResourceFile);

    iNrOfSubOperations = resources->ReadInt32L(R_POS_LM_LOCAL_EXPORT_LMS_OP);

    if (iNrOfSubOperations <= 0)

        {

        Panic(KPosLandmarksClientPanic,

            EPosInvalidValueSpecifiedInResourceFile);

        }

    CleanupStack::PopAndDestroy(resources);

    }

//  End of File