applayerprotocols/httpservice/inc/mhttpcontentsink.h
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 27 Apr 2010 17:12:14 +0300
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// Copyright (c) 2003-2009 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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#ifndef __MHTTPCONTENTSINK_H__
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#define __MHTTPCONTENTSINK_H__
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#include <e32base.h>
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class MHttpDataReceiver;
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/**
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 * THttpContentSinkOp is an operator to retrieve/store/release the HTTP
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 * content. The data consuming can be an asynchronous operation. After 
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 * consuming the data Release/Store function must be called.
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 * 
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 * @publishedAll
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 * @released
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 */
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class THttpContentSinkOp
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    {
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    friend class CHttpDataReceiver;
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    public:
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    IMPORT_C THttpContentSinkOp();
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    IMPORT_C TBool GetData(TPtrC8& aData);
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    IMPORT_C void Release();
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    IMPORT_C void Store(); // Store into a file if a sink is provided.
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    private:
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        THttpContentSinkOp(MHttpDataReceiver& aSupplier);
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    private:
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    MHttpDataReceiver* iDataReceiver;
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    };
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/**
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 * The implementation of MHttpContentSink can process the response body data  If the application wants to 
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 * process/sink the data in different means then the client can insulate sink to a different sink
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 * 
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 * @publishedAll
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 * @prototype
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 */
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class MHttpContentSink
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	{
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	public:
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    /**
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     * Supply a part of the response body data. The data will survive till the THttpContentSinkOp::Release/Store 
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     * is called. application should process the data or keep a separate copy if it has to process the data at a 
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     * later stage. This function will be called when part of the body data is available
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     * 
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     * @param   aData  Sink Operator
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     */
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	virtual void OnData(THttpContentSinkOp& aData) =0;
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	private:
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   // Reserved for future use.
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    inline virtual void Reserved();
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    inline virtual void Reserved2();        
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    };
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inline void MHttpContentSink::Reserved()
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    {
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    }
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inline void MHttpContentSink::Reserved2()
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    {
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    }	
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#endif // __MHTTPCONTENTSINK_H__