/*

* Copyright (c) 2004 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 is an operation handler for fetching attributes from network.

*

*/

// INCLUDE FILES

#include "CPEngAttributeFetchOp.h"

#include "CPEngNWSessionSlotStorageProxy.h"

#include "MPEngPresenceAttrManager.h"

#include "MPEngAdvTransactionStatus2.h"

#include "PEngAttrLibFactory.h"

#include <CPEngAttributeTransaction2.h>

#include <MPEngAttributeTransactionObserver2.h>

#include <MPEngPresenceAttrModel2.h>

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

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

// CPEngAttributeFetchOp::NewL()

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

CPEngAttributeFetchOp* CPEngAttributeFetchOp::NewL( TInt aPriority,

                                                    CPEngAttributeTransaction2& aInterface,

                                                    CPEngNWSessionSlotStorageProxy& aUsedSlot,

                                                    TBool aResultAsLocalObjects,

                                                    const MDesCArray& aPresenceIDs,

                                                    const TArray<TUint32>& aTypes,

                                                    MPEngAttributeTransactionObserver2& aObserver,

                                                    RPEngManagerClient& aServer )

    {

    CPEngAttributeFetchOp* self = new ( ELeave ) CPEngAttributeFetchOp( aPriority,

                                                                        aInterface,

                                                                        aObserver,

                                                                        aServer );

    CleanupStack::PushL( self );

    self->ConstructL( aUsedSlot,

                      aPresenceIDs,

                      aTypes,

                      aResultAsLocalObjects );

    CleanupStack::Pop();

    return self;

    }

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

// CPEngAttributeFetchOp::~CPEngAttributeFetchOp()

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

CPEngAttributeFetchOp::~CPEngAttributeFetchOp()

    {

    CActive::Cancel();

    iResultModels.ResetAndDestroy();

    if ( iAttrManager )

        {

        iAttrManager->Close();

        }

    }

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

// CPEngAttributeFetchOp::CPEngAttributeFetchOp()

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

CPEngAttributeFetchOp::CPEngAttributeFetchOp( TInt aPriority,

                                              CPEngAttributeTransaction2& aInterface,

                                              MPEngAttributeTransactionObserver2& aObserver,

                                              RPEngManagerClient& aServer )

        : CPEngAsyncOperation( aPriority, aServer ),

        iInterface( aInterface ),

        iObserver( aObserver )

    {

    }

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

// CPEngAttributeFetchOp::ConstructL()

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

void CPEngAttributeFetchOp::ConstructL( CPEngNWSessionSlotStorageProxy& aUsedSlot,

                                        const MDesCArray& aPresenceIDs,

                                        const TArray<TUint32>& aTypes,

                                        TBool aResultAsLocalObjects )

    {

    CPEngAsyncOperation::BaseConstructL( aUsedSlot );

    iAttrManager = PEngAttrLibFactory::AttributeManagerInstanceL( aUsedSlot.BaseId() );

    TInt ii;

    TInt jj;

    //Verify attribute types

    const TInt typesCount( aTypes.Count() );

    if ( typesCount == 0 )

        {

        User::Leave( KErrArgument );

        }

    for ( ii = 0; ii < typesCount - 1; ii++ )

        {

        for ( jj = ii + 1 ; jj < typesCount; jj++ )

            {

            if ( aTypes[ii] == aTypes[jj] )

                {

                User::Leave( KErrAlreadyExists );

                }

            }

        }

    //Check every type can be used in NW operation

    for ( ii = 0; ii < typesCount; ii++ )

        {

        User::LeaveIfError( iAttrManager->ValidNetworkAttribute( aTypes[ii] ) );

        }

    //Verify presence ID's

    const TInt presenceIDCount( aPresenceIDs.MdcaCount() );

    if ( presenceIDCount == 0 )

        {

        User::Leave( KErrArgument );

        }

    for ( ii =  0; ii < presenceIDCount - 1; ii++ )

        {

        for ( jj = ii + 1; jj < presenceIDCount; jj++ )

            {

            if ( aPresenceIDs.MdcaPoint( ii ) ==

                 aPresenceIDs.MdcaPoint( jj ) )

                {

                User::Leave( KErrAlreadyExists );

                }

            }

        }

    //Generate the request

    HBufC16* data = iAttrManager->PackFetchRequestL( aPresenceIDs,

                                                     aTypes );

    if ( aResultAsLocalObjects )

        {

        InitTransaction( data, EPEngTransOpAttributeFetchToObjects );

        }

    else

        {

        InitTransaction( data, EPEngTransOpAttributeFetchToCache );

        }

    }

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

// CPEngAttributeFetchOp::Fetch()

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

void CPEngAttributeFetchOp::Fetch()

    {

    IssueTransaction();

    }

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

// CPEngAttributeFetchOp::GetFetchedAttributes()

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

TInt CPEngAttributeFetchOp::GetFetchedAttributes(

    RPointerArray< MPEngPresenceAttrModel2>& aModels )

    {

    const TInt count = iResultModels.Count();

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

        {

        MPEngPresenceAttrModel2* m = iResultModels[ 0 ];

        TInt err = aModels.Append( m );

        if ( err != KErrNone )

            {

            return err;

            }

        iResultModels.Remove( 0 );

        }

    return KErrNone;

    }

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

// CPEngAttributeFetchOp::DoHandleOpSuccessL()

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

void CPEngAttributeFetchOp::DoHandleOpSuccessL( MPEngAdvTransactionStatus2& aStatus,

                                                TInt aTransactionOperation )

    {

    if ( aTransactionOperation == EPEngTransOpAttributeFetchToObjects )

        {

        TPtrC16 dataResult( NULL, 0 );

        aStatus.GetFirstDataResultByOperation( EPEngTransOpAttributeFetchToObjects,

                                               dataResult );

        if ( dataResult.Length() > 0 )

            {

            iAttrManager->UnpackModelArrayL( dataResult,

                                             EPEngInstanceOptionsNone,

                                             iResultModels );

            }

        }

    }

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

// CPEngAttributeFetchOp::DoHandleOpFailure()

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

void CPEngAttributeFetchOp::DoHandleOpFailure(

    MPEngAdvTransactionStatus2& /*aStatus*/,

    TInt /*aTransactionOperation*/ )

    {

    iResultModels.ResetAndDestroy();

    }

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

// CPEngAttributeFetchOp::DoNotifyObserver()

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

TPEngAsyncOpResult CPEngAttributeFetchOp::DoNotifyObserver(

    MPEngAdvTransactionStatus2& aStatus,

    TInt aTransactionOperation )

    {

    TRAPD( err, iObserver.HandleAttributeTransactionCompleteL(

               aStatus,

               iInterface,

               aTransactionOperation ) );

    if ( err != KErrNone )

        {

        iObserver.HandleAttributeTransactionError( err,

                                                   iInterface,

                                                   aTransactionOperation );

        }

    return EPEngAsyncOpCompleted;

    }

// End of file