/*

* Copyright (c) 2002-2006 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:  ASY Proxy Handler

*

*/

// INCLUDE FILES

#include "AccSrvASYProxyHandler.h"

#include "acc_debug.h"

#include "AccSrvConnectionController.h"

#include "AccSrvServerModel.h"

#include "AccPolAccessoryPolicy.h"

// EXTERNAL DATA STRUCTURES

// EXTERNAL FUNCTION PROTOTYPES

// CONSTANTS

const TInt KAccSrvModelTrIdMaxCount = 10000;

// MACROS

// LOCAL CONSTANTS AND MACROS

// MODULE DATA STRUCTURES

// LOCAL FUNCTION PROTOTYPES

// FORWARD DECLARATIONS

// ============================= LOCAL FUNCTIONS ===============================

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

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

// CAccSrvASYProxyHandler::CAccSrvASYProxyHandler

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

//

CAccSrvASYProxyHandler::CAccSrvASYProxyHandler(

    CAccSrvConnectionController* aConnectionController ) :

    iConnectionController( aConnectionController ),

    iTransactionId( 0 )

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::CAccSrvASYProxyHandler()" );

    }

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

// CAccSrvASYProxyHandler::ConstructL

// Symbian 2nd phase constructor can leave.

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

//

void CAccSrvASYProxyHandler::ConstructL()

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::ConstructL" );

    iOngoingTransactions.Reset();

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::ConstructL - return void" );

    }

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

// CAccSrvASYProxyHandler::NewL

// Two-phased constructor.

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

//

CAccSrvASYProxyHandler* CAccSrvASYProxyHandler::NewL(

    CAccSrvConnectionController* aConnectionController )

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::NewL()" );

    CAccSrvASYProxyHandler* self = new( ELeave ) CAccSrvASYProxyHandler( aConnectionController );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::NewL - return self" );

    return self;

    }

// Destructor

CAccSrvASYProxyHandler::~CAccSrvASYProxyHandler()

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::~CAccSrvASYProxyHandler()" );

    iOngoingTransactions.Close();

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::~CAccSrvASYProxyHandler - return" );

    }

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

// CAccSrvASYProxyHandler::HandleASYCommsL

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

//

TInt CAccSrvASYProxyHandler::HandleASYCommsL(

    TProcessCmdId aCmdId,

    TASYCommandParamRecord& aASYCommand,

    TPtr8* aPtrBuf )

    {

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::HandleASYCommsL(%d)", aCmdId );

    TInt trID( 0 );

    if ( ECmdProcessCommandInit == aCmdId )

        {

        //No need to store transaction, only a new transaction ID is generated

        trID = GenerateNewTransactionID();

        //Complete outstanding NotifyProcessCommand()

        iConnectionController->NotificationQueue().CompleteASYCmdL( ENotifyProcessCommand,

                                                                    aCmdId,

                                                                    trID,

                                                                    aASYCommand,

                                                                    aPtrBuf );

        }

    else

        {

        trID = StoreTransactionID( aCmdId, aASYCommand, aPtrBuf );

        }

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::HandleASYCommsL - return TrID=%d", trID );

    return trID;

    }

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

// CAccSrvASYProxyHandler::StoreTransactionID

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

//

TInt CAccSrvASYProxyHandler::StoreTransactionID(

    TProcessCmdId aCmdId,

    TASYCommandParamRecord& aASYCommand,

    TPtr8* aPtrBuf )

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::StoreTransactionID()" );

    TInt trID( KErrNotFound );

    TInt count( iOngoingTransactions.Count() );

    TUint32 nameFromOngoingTransactions;

    TUint32 nameFromRequest;

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::StoreTransactionID - current count = %d", count );

    for ( TInt i( 0 ); i < count; ++i )

        {

        iOngoingTransactions.operator[](i).iNameRecord.GetName( nameFromOngoingTransactions );

        aASYCommand.iNameRecord.GetName( nameFromRequest );

        if ( nameFromOngoingTransactions == nameFromRequest && 

             iOngoingTransactions.operator[](i).iCommand == aCmdId && 

             iOngoingTransactions.operator[](i).iUniqueID == aASYCommand.iGenericID.UniqueID() )

            {

            //Same command is under processing in ASY -> use existing trid

            trID = iOngoingTransactions.operator[](i).iTransactionID;

            COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::StoreTransactionID - found trid = %d", trID );

            break;

            }

        else

            {

            //keep on searching

            }

        }

    if ( KErrNotFound == trID )

        {

        TAccSrvTrIDMatchingRecord trIDRecord;

        trID = GenerateNewTransactionID();

        trIDRecord.iUniqueID      = aASYCommand.iGenericID.UniqueID();

        trIDRecord.iNameRecord    = aASYCommand.iNameRecord;

        trIDRecord.iCommand       = aASYCommand.iCmdValue;

        trIDRecord.iTransactionID = trID;

        iOngoingTransactions.Append( trIDRecord );

        //Complete outstanding NotifyProcessCommand()

        TRAP_IGNORE( iConnectionController->NotificationQueue().CompleteASYCmdL( 

                                                                    ENotifyProcessCommand,

                                                                    aCmdId,

                                                                    trID,

                                                                    aASYCommand,

                                                                    aPtrBuf ) );

        }

    else

        {

        //No need to generate a new trid, existing is used.

        //This means also that ASY is not informed about this command.

        }

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::StoreTransactionID - return %d", trID );

    return trID;

    }

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

// CAccSrvASYProxyHandler::RemoveTransactionID

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

//

void CAccSrvASYProxyHandler::RemoveTransactionID( TInt aTransactionID )

    {

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::RemoveTransactionID(%d)", aTransactionID );

    TInt count( iOngoingTransactions.Count() );

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::RemoveTransactionID - current count = %d", count );

    for ( TInt i( 0 ); i < count; ++i )

        {

        if ( iOngoingTransactions.operator[]( i ).iTransactionID == aTransactionID )

            {

            iOngoingTransactions.Remove( i );

            COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::StoreTransactionID - removed index = %d",i );

            break;

            }

        else

            {

            // Keep on searching.

            // Not found is not error situation because

            // 1) One Transaction can handle several ASY commands i.e. it may be allready removed

            // 2) ECmdProcessCommandInit is not filtered

            }

        }

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::RemoveTransactionID - return void" );

    }

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

// CAccSrvASYProxyHandler::GenerateNewTransactionID

//

// Increase id by one until max limit is reached.

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

//

TInt CAccSrvASYProxyHandler::GenerateNewTransactionID()

    {

    COM_TRACE_( "[AccFW:AccServer] CAccSrvASYProxyHandler::GenerateNewTransactionID()" );

    if ( iTransactionId <= KAccSrvModelTrIdMaxCount )

        {

        iTransactionId++;

        }

    else

        {

        //Zero is reserved for signalling no Transaction ID situation

        iTransactionId = 1;

        }

    COM_TRACE_1( "[AccFW:AccServer] CAccSrvASYProxyHandler::GenerateNewTransactionID - return 0x%x", iTransactionId );

    return iTransactionId;

    }

// ========================== OTHER EXPORTED FUNCTIONS =========================

// End of File