/*

* 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:  Presence attribute transactions.

*

*/

// INCLUDE FILES

#include "CPEngAttributeTransaction2Imp.h"

#include "CPEngAsyncOperation.h"

#include "CPEngNWSessionSlotID2.h"

#include "CPEngNWSessionSlotStorageProxy.h"

#include "CPEngAttributePublishOp.h"

#include "CPEngAttributeFetchOp.h"

//LOCAL constants

#ifdef _DEBUG

namespace

    {

    //Panic

    _LIT( KPEngAttrTransPanic, "PEngAttrTrans" );

    //Panic reasons

    enum TPEngAttrTransPanicReasons

        {

        EAttrTransUnkownTransOp

        };

    void AttrTransPanic( TPEngAttrTransPanicReasons aPanicReason )

        {

        User::Panic( KPEngAttrTransPanic, aPanicReason );

        }

    }

#endif

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

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

// CPEngAttributeTransaction2Imp::NewL()

// Two-phased constructor.

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

//

CPEngAttributeTransaction2Imp* CPEngAttributeTransaction2Imp::NewL(

    CPEngAttributeTransaction2& aInterface,

    TInt aPriority,

    const CPEngNWSessionSlotID2& aNWSessionSlotID )

    {

    CPEngAttributeTransaction2Imp* self =

        new ( ELeave ) CPEngAttributeTransaction2Imp( aInterface, aPriority );

    CleanupStack::PushL( self );

    self->ConstructL( aNWSessionSlotID );

    CleanupStack::Pop( self );

    return self;

    }

// Destructor

CPEngAttributeTransaction2Imp::~CPEngAttributeTransaction2Imp()

    {

    //Cancel also deletes the operation objects

    CancelPublishOwnAttributes();

    CancelFetchAttributes();

    iTransactionServer.Close();

    delete iUsedSlot;

    }

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

// CPEngAttributeTransaction2Imp::CPEngAttributeTransaction2Imp

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

// might leave.

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

//

CPEngAttributeTransaction2Imp::CPEngAttributeTransaction2Imp(

    CPEngAttributeTransaction2& aInterface,

    TInt aPriority )

        : iInterface( aInterface ),

        iCActivePriority( aPriority )

    {

    }

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

// CPEngAttributeTransaction2Imp::ConstructL()

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

//

void CPEngAttributeTransaction2Imp::ConstructL(

    const CPEngNWSessionSlotID2& aNWSessionSlotID )

    {

    iUsedSlot = CPEngNWSessionSlotStorageProxy::NewL( aNWSessionSlotID );

    User::LeaveIfError( iTransactionServer.Connect() );

    }

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

// CPEngAttributeTransaction2Imp::IsPublishOwnAttributesActive()

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

//

TBool CPEngAttributeTransaction2Imp::IsPublishOwnAttributesActive() const

    {

    return ( iAttributePublishOp != NULL );     // CSI: 64 #

    }

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

// CPEngAttributeTransaction2Imp::PublishAndUnLockOwnAttribute()

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

//

TInt CPEngAttributeTransaction2Imp::PublishAndUnLockOwnAttribute(

    MPEngPresenceAttrModel2*& aModel,

    MPEngAttributeTransactionObserver2& aObserver )

    {

    RPointerArray< MPEngPresenceAttrModel2 > models;

    TInt err = models.Append( aModel );

    if ( err == KErrNone )

        {

        err = PublishAndUnLockOwnAttributes( models, aObserver );

        }

    if ( err == KErrNone )

        {

        aModel = NULL;

        }

    models.Reset();

    return err;

    }

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

// CPEngAttributeTransaction2Imp::PublishAndUnLockOwnAttributes()

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

//

TInt CPEngAttributeTransaction2Imp::PublishAndUnLockOwnAttributes(

    RPointerArray<MPEngPresenceAttrModel2>& aModels,

    MPEngAttributeTransactionObserver2& aObserver )

    {

    if ( iAttributePublishOp )

        {

        return KErrInUse;

        }

    CPEngAttributePublishOp* op = NULL;

    TRAPD( err,

           op = CPEngAttributePublishOp::NewL( iCActivePriority,

                                               iInterface,

                                               *iUsedSlot,

                                               aModels,

                                               aObserver,

                                               iTransactionServer ); );

    if ( err == KErrNone )

        {

        //Success

        //==> Ownership of passed attribute objects is now  on the publish operation

        op->Publish();

        op->SetOwner( *this );

        iAttributePublishOp = op;

        aModels.Reset();

        }

    return err;

    }

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

// CPEngAttributeTransaction2Imp::CancelPublishOwnAttributes()

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

//

void CPEngAttributeTransaction2Imp::CancelPublishOwnAttributes()

    {

    if ( iAttributePublishOp )

        {

        iAttributePublishOp->CancelOpD();

        iAttributePublishOp = NULL;

        }

    }

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

// CPEngAttributeTransaction2Imp::IsFetchAttributesActive()

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

//

TBool CPEngAttributeTransaction2Imp::IsFetchAttributesActive() const

    {

    return( iAttributeFetchOp != NULL );        // CSI: 64 #

    }

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

// CPEngAttributeTransaction2Imp::FetchAttributes()

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

//

TInt CPEngAttributeTransaction2Imp::FetchAttributes(

    const MDesCArray& aPresenceIDs,

    const TArray<TUint32>& aTypes,

    MPEngAttributeTransactionObserver2& aObserver,

    TInt aOptions,

    TBool aResultAsLoclObjects )

    {

    if ( iAttributeFetchOp )

        {

        return KErrInUse;

        }

    if ( aOptions != 0 )

        {

        return KErrArgument;

        }

    CPEngAttributeFetchOp* op = NULL;

    TRAPD( err,

           op = CPEngAttributeFetchOp::NewL( iCActivePriority,

                                             iInterface,

                                             *iUsedSlot,

                                             aResultAsLoclObjects,

                                             aPresenceIDs,

                                             aTypes,

                                             aObserver,

                                             iTransactionServer ); );

    if ( err == KErrNone )

        {

        op->Fetch();

        op->SetOwner( *this );

        iAttributeFetchOp = op;

        }

    return err;

    }

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

// CPEngAttributeTransaction2Imp::CancelFetchAttributes()

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

//

void CPEngAttributeTransaction2Imp::CancelFetchAttributes()

    {

    if ( iAttributeFetchOp )

        {

        iAttributeFetchOp->CancelOpD();

        iAttributeFetchOp = NULL;

        }

    }

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

// CPEngAttributeTransaction2Imp::GetFetchedAttributes()

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

//

TInt CPEngAttributeTransaction2Imp::GetFetchedAttributes(

    RPointerArray< MPEngPresenceAttrModel2>& aModels )

    {

    if ( iAttributeFetchOp )

        {

        return iAttributeFetchOp->GetFetchedAttributes( aModels );

        }

    return KErrNotReady;

    }

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

// CPEngAttributeTransaction2Imp::HandleAsyncOperationDestruction()

// from MPEngAsyncOperationOwner

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

//

void CPEngAttributeTransaction2Imp::HandleAsyncOperationDestruction(

    CPEngAsyncOperation* aOperation )

    {

    if ( aOperation == iAttributeFetchOp )

        {

        iAttributeFetchOp = NULL;

        return;

        }

    if ( aOperation == iAttributePublishOp )

        {

        iAttributePublishOp = NULL;

        return;

        }

    __ASSERT_DEBUG( EFalse, AttrTransPanic( EAttrTransUnkownTransOp ) );

    }

// End of File