/*

* Copyright (c) 2006-2006 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:  Defines a session with the preset server

*

*/

#include <pscommon.h>

#include <s32mem.h>

#include "psdebug.h"

#include "psserver.h"

#include "pssession.h"

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

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

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

// Two-phased constructor.

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

//

CPSSession* CPSSession::NewL( CPSServer& aServer )

    {

    CPSSession* self = new ( ELeave ) CPSSession( aServer );

    CleanupStack::PushL( self );

    self->ConstructL();

    CleanupStack::Pop( self );

    return self;

    }

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

// Constructor.

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

//

CPSSession::CPSSession( CPSServer& aServer )

    : CSession2(), iPresetServer( aServer )

    {

    }

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

// Second-phase constructor.

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

//

void CPSSession::ConstructL()

    {

    iPresetServer.IncrementSessionCount();

    }

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

// Destructor.

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

//

CPSSession::~CPSSession()

    {

    iPresetServer.DecrementSessionCount();

    }

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

// From class CSession2

// Invoked when a service request is made.

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

//

void CPSSession::ServiceL( const RMessage2& aMessage )

    {

    PSDEBUG2( "CPSSession::ServiceL >> OpCode = %d", static_cast<TInt>( aMessage.Function() ) );

    TBool messageHandled = ETrue;

    TRAPD( err, messageHandled = DoServiceL( aMessage ) )

    if ( messageHandled && !aMessage.IsNull() )

        {

        PSDEBUG2( "\tMessage was handled >> err = %d", err );

        aMessage.Complete( err );

        }

    PSDEBUG( "CPSSession::ServiceL <<" );

    }

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

// Service request implementation.

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

//

TBool CPSSession::DoServiceL( const RMessage2& aMessage )

    {

    TPSOpCode opCode = static_cast<TPSOpCode>( aMessage.Function() );

    TBool messageHandled = ETrue;

    switch ( opCode )

        {

        case EPSOpCreatePreset:

            CreatePresetL( aMessage );

        break;

        case EPSOpDeletePreset:

            DeletePresetL( aMessage );

        break;

        case EPSOpStartTransaction:

            StartTransactionL( aMessage );

        break;

        case EPSOpCommitTransaction:

            CommitTransactionL( aMessage );

        break;

        case EPSOpRollbackTransaction:

            RollbackTransaction( aMessage );

        break;

        case EPSOpMovePreset:

            MovePresetL( aMessage );

        break;

        case EPSOpNotify:

            NotifyPresetChangeL( aMessage );

            messageHandled = EFalse;

        break;

        case EPSOpCancelNotify:

            CancelNotifyPresetChange( aMessage );

        break;

        case EPSOpSetPresetName:

            SetPresetNameL( aMessage );

        break;

        case EPSOpSetPresetIndex:

            SetPresetIndexL( aMessage );

        break;

        case EPSOpSetPresetData:

            SetPresetDataL( aMessage );

        break;

        case EPSOpGetPresetName:

            GetPresetNameL( aMessage );

        break;

        case EPSOpGetPresetNameLength:

            GetPresetNameLengthL( aMessage );

        break;

        case EPSOpGetPresetIndex:

            GetPresetIndexL( aMessage );

        break;

        case EPSOpGetPresetDataHandler:

            GetPresetDataHandlerL( aMessage );

        break;

        case EPSOpGetPresetData:

            GetPresetDataL( aMessage );

        break;

        case EPSOpGetPresetDataLength:

            GetPresetDataLengthL( aMessage );

        break;

        case EPSOpGetPresets:

            GetPresetsL( aMessage );

        break;

        case EPSOpGetPresetsLength:

            GetPresetsLengthL( aMessage );

        break;

        default:

            iPresetServer.PanicClient( KErrArgument );

        break;

        }

    return messageHandled;

    }

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

// From class CSession2

// Invoked when a session is disconnected.

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

//

void CPSSession::Disconnect(const RMessage2 &aMessage)

    {

    iPresetServer.SessionDisconnected( aMessage );

    CSession2::Disconnect( aMessage );

    }

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

// Handles a create preset message.

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

//

void CPSSession::CreatePresetL( const RMessage2& aMessage )

    {

    TInt id = iPresetServer.Database().CreatePresetL( aMessage.Int0(), TUid::Uid( aMessage.Int1() ) );

    TPckgBuf<TInt> idBuf( id );

    aMessage.WriteL( 2, idBuf );

    }

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

// Handles a delete preset message.

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

//

void CPSSession::DeletePresetL( const RMessage2& aMessage )

    {

    iPresetServer.Database().DeletePresetL( aMessage.Int0() );

    }

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

// Handles a start transaction message.

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

//

void CPSSession::StartTransactionL( const RMessage2& aMessage )

    {

    iPresetServer.AppendPendingPresetL( aMessage.Int0() );

    }

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

// Handles a commit transaction message.

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

//

void CPSSession::CommitTransactionL( const RMessage2& aMessage )

    {

    iPresetServer.CommitPendingPresetL( aMessage.Int0() );

    }

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

// Handles a rollback transaction message.

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

//

void CPSSession::RollbackTransaction( const RMessage2& aMessage )

    {

    iPresetServer.RemovePendingPreset( aMessage.Int0() );

    }

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

// Handles a move preset message.

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

//

void CPSSession::MovePresetL( const RMessage2& aMessage )

    {

    iPresetServer.Database().MovePresetL( aMessage.Int0(), aMessage.Int1() );

    }

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

// Handles a notify preset change message.

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

//

void CPSSession::NotifyPresetChangeL( const RMessage2& aMessage )

    {

    iPresetServer.AppendPresetObserverL( aMessage );

    }

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

// Handles a cancel notify preset change message.

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

//

void CPSSession::CancelNotifyPresetChange( const RMessage2& aMessage )

    {

    iPresetServer.RemovePresetObserver( aMessage );

    }

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

// Handles a set preset name message.

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

//

void CPSSession::SetPresetNameL( const RMessage2& aMessage )

    {

    HBufC* name = HBufC::NewLC( aMessage.GetDesLengthL( 1 ) );

    TPtr namePtr( name->Des() );

    aMessage.ReadL( 1, namePtr );

    iPresetServer.SetPendingPresetNameL( aMessage.Int0(), namePtr );

    CleanupStack::PopAndDestroy( name );

    }

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

// Handles a set preset index message.

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

//

void CPSSession::SetPresetIndexL( const RMessage2& aMessage )

    {

    iPresetServer.SetPendingPresetIndexL( aMessage.Int0(), aMessage.Int1() );

    }

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

// Handles a set preset data message.

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

//

void CPSSession::SetPresetDataL( const RMessage2& aMessage )

    {

    HBufC8* data = HBufC8::NewLC( aMessage.GetDesLengthL( 1 ) );

    TPtr8 dataPtr( data->Des() );

    aMessage.ReadL( 1, dataPtr );

    iPresetServer.SetPendingPresetDataL( aMessage.Int0(), dataPtr );

    CleanupStack::PopAndDestroy( data );

    }

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

// Handles a get preset name message.

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

//

void CPSSession::GetPresetNameL( const RMessage2& aMessage )

    {

    HBufC* name = iPresetServer.Database().PresetNameL( aMessage.Int0() );

    CleanupStack::PushL( name );

    aMessage.WriteL( 1, *name );

    CleanupStack::PopAndDestroy( name );

    }

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

// Handles a get preset name length message.

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

//

void CPSSession::GetPresetNameLengthL( const RMessage2& aMessage )

    {

    TInt length = iPresetServer.Database().PresetNameLengthL( aMessage.Int0() );

    TPckgBuf<TInt> pckg( length );

    aMessage.WriteL( 1, pckg );

    }

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

// Handles a get preset index message.

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

//

void CPSSession::GetPresetIndexL( const RMessage2& aMessage )

    {

    TPckgBuf<TInt> pckg( iPresetServer.Database().PresetIndexL( aMessage.Int0() ) );

    aMessage.WriteL( 1, pckg );

    }

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

// Handles a get preset data handler message.

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

//

void CPSSession::GetPresetDataHandlerL( const RMessage2& aMessage )

    {

    TPckgBuf<TInt> pckg( iPresetServer.Database().PresetDataHandlerL( aMessage.Int0() ).iUid );

    aMessage.WriteL( 1, pckg );

    }

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

// Handles a get preset data message.

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

//

void CPSSession::GetPresetDataL( const RMessage2& aMessage )

    {

    HBufC8* data = iPresetServer.Database().PresetDataL( aMessage.Int0() );

    CleanupStack::PushL( data );

    aMessage.WriteL( 1, *data );

    CleanupStack::PopAndDestroy( data );

    }

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

// Handles a get preset data length message.

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

//

void CPSSession::GetPresetDataLengthL( const RMessage2& aMessage )

    {

    TInt length = iPresetServer.Database().PresetDataLengthL( aMessage.Int0() );

    TPckgBuf<TInt> pckg( length );

    aMessage.WriteL( 1, pckg );

    }

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

// Handles a get presets message.

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

//

void CPSSession::GetPresetsL( const RMessage2& aMessage )

    {

    RArray<TInt> presets;

    CleanupClosePushL( presets );

    iPresetServer.Database().GetPresetListL( presets, TUid::Uid( aMessage.Int0() ) );

    TInt count = presets.Count();

    HBufC8* buf = HBufC8::NewLC( (presets.Count() + 1) * KDefaultRealWidth );

    TPtr8 ptr( buf->Des() );

    RDesWriteStream stream( ptr );

    CleanupClosePushL( stream );

    stream << TCardinality( count );

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

        {

        stream.WriteInt32L( presets[i] );

        }

    stream.CommitL();

    aMessage.WriteL( 1, *buf );

    CleanupStack::PopAndDestroy( 3, &presets );

    }

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

// Handles a get presets length message.

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

//

void CPSSession::GetPresetsLengthL( const RMessage2& aMessage )

    {

    RArray<TInt> presets;

    CleanupClosePushL( presets );

    iPresetServer.Database().GetPresetListL( presets, TUid::Uid( aMessage.Int0() ) );

    aMessage.WriteL( 1, TPckgC<TInt>( (presets.Count() + 1) * KDefaultRealWidth ) );

    CleanupStack::PopAndDestroy( &presets );

    }

// ======== GLOBAL FUNCTIONS ========