xml/xmldomandxpath/src/xmlengineserializer/xmlenggzipbufferdeserializebm.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Fri, 11 Jun 2010 15:35:29 +0300
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Revision: 201023 Kit: 2010123
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// Copyright (c) 2006-2009 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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// GZIP output stream functions
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//
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#include "xmlenggzipbufferdeserializebm.h"
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#include <ezstream.h>
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#include <ezcompressor.h>
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    CXmlEngGZipBufferDeserializeBM* CXmlEngGZipBufferDeserializeBM::NewLC(  Xml::CParser* aParser, const TDesC8& aInputBuffer, TInt aOutBufSize  )
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	    {
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	    CXmlEngGZipBufferDeserializeBM* bm = new (ELeave) CXmlEngGZipBufferDeserializeBM( aParser, aInputBuffer );
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	    CleanupStack::PushL( bm );
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	    bm->ConstructL( aOutBufSize );
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	    return bm;	
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	    }
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    CXmlEngGZipBufferDeserializeBM* CXmlEngGZipBufferDeserializeBM::NewL( Xml::CParser* aParser, const TDesC8& aInputBuffer, TInt aOutBufSize )
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	    {
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	    CXmlEngGZipBufferDeserializeBM* bm = CXmlEngGZipBufferDeserializeBM::NewLC( aParser, aInputBuffer, aOutBufSize );
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	    CleanupStack::Pop( bm );
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	    return bm;	
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	    }
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   CXmlEngGZipBufferDeserializeBM::CXmlEngGZipBufferDeserializeBM( Xml::CParser* aParser, const TDesC8& aInputBuffer )
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        : iOutputDescriptor(NULL,0)
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        {
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        iParser = aParser;
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        iInputDescriptor.Set(aInputBuffer);
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        }
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   void CXmlEngGZipBufferDeserializeBM::ConstructL( TInt aOutBufSize )
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        {
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	    if ( aOutBufSize <= 0 ) 
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	        {
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	        User::Leave(KErrArgument);
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	        }
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	    iOutputBuffer = new (ELeave) TUint8[aOutBufSize];
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	    iOutputDescriptor.Set(iOutputBuffer,0,aOutBufSize);
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        }
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   CXmlEngGZipBufferDeserializeBM::~CXmlEngGZipBufferDeserializeBM()
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        {
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        delete iOutputBuffer;
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        }
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    void CXmlEngGZipBufferDeserializeBM::InitializeL( CEZZStream& aZStream )
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    	{
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    	iParser->ParseBeginL();
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    	aZStream.SetInput( iInputDescriptor );
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    	aZStream.SetOutput( iOutputDescriptor );
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    	}
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    void CXmlEngGZipBufferDeserializeBM::NeedInputL( CEZZStream& aZStream )
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    	{
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    	//no input except iInputDescriptor
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        aZStream.SetInput( KNullDesC8 );
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    	}
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    void CXmlEngGZipBufferDeserializeBM::NeedOutputL( CEZZStream& aZStream )
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    	{
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    	TPtrC8 od = aZStream.OutputDescriptor();    	
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    	iParser->ParseL( od );
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    	aZStream.SetOutput( iOutputDescriptor );
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    	}
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    void CXmlEngGZipBufferDeserializeBM::FinalizeL( CEZZStream& aZStream )
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        {
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        TPtrC8 od = aZStream.OutputDescriptor();
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        iParser->ParseL( od );
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        iParser->ParseEndL();
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    	}
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