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/*
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* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#include <s32mem.h>
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#include "tsserializeddataprovider.h"
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#include "tsmodel.h"
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// -----------------------------------------------------------------------------
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/**
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* Leaving constructor.
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* @param observer - data observer
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*/
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CTsSerializedDataProvider* CTsSerializedDataProvider::NewL(MTsDataObserver &observer)
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{
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return new (ELeave) CTsSerializedDataProvider(observer);
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}
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// -----------------------------------------------------------------------------
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/**
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* Constructor
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* @param observer - data observer
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*/
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CTsSerializedDataProvider::CTsSerializedDataProvider(MTsDataObserver& observer)
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:
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iObserver(observer)
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{}
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// -----------------------------------------------------------------------------
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/**
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* Destructor
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*/
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CTsSerializedDataProvider::~CTsSerializedDataProvider()
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{
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iData.Close();
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}
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// -----------------------------------------------------------------------------
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/**
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* Interface implementation.
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* @see MTsDataProvider::Data()
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*/
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const TDesC8& CTsSerializedDataProvider::Data() const
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{
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return iData;
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}
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// -----------------------------------------------------------------------------
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/**
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* Interface implementation.
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* @see MTsModelObserver::dataChanged(MTsModel &)
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*/
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void CTsSerializedDataProvider::DataChanged(MTsModel &model)
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{
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serializeModel(model);
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}
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// -----------------------------------------------------------------------------
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/**
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* Serialize source model into internal data storage
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* @param src - model
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*/
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void CTsSerializedDataProvider::serializeModel(const MTsModel &src)
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{
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TRAPD(errNo, serializeModelL(src));
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if(KErrNone == errNo ) {
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iObserver.DataChanged();
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}
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}
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// -----------------------------------------------------------------------------
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/**
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* Serialize source model into internal data storage. Function can leave.
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* @param src - source model
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*/
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void CTsSerializedDataProvider::serializeModelL(const MTsModel &src)
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{
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const TInt KExpandSize = 256;
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CBufFlat* buf = CBufFlat::NewL(KExpandSize);
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CleanupStack::PushL(buf);
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RBufWriteStream stream(*buf);
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CleanupClosePushL(stream);
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serializeModelL(stream, src);
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CleanupStack::PopAndDestroy(&stream);
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iData.Close();
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iData.CreateL(buf->Size());
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buf->Read(0, iData, buf->Size());
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CleanupStack::PopAndDestroy(buf);
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}
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// -----------------------------------------------------------------------------
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/**
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* Serialize source model into destination stream. Function can leave.
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* @param dst - destination stream
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* @param src - source model
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*/
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void CTsSerializedDataProvider::serializeModelL(RWriteStream& dst, const MTsModel &src)
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{
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dst.WriteInt32L( src.Count() );
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for (TInt iter(0); iter < src.Count(); ++iter) {
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dst << src.ItemL( iter );
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}
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}
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