// Copyright (c) 2002-2009 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:

//

#ifndef __CMESSAGECOMPOSERDRIVER_H__

#define __CMESSAGECOMPOSERDRIVER_H__

#include <e32base.h>

#include <rhttpmessagecomposer.h>

#include <mhttpmessagecomposerobserver.h>

#include "mbodydatasupplierobserver.h" 

class MDriverObserver;

class CBodyDataSupplier;

class CMessageComposerDriver : public CActive,

							   public MHttpMessageComposerObserver,

							   public MBodyDataSupplierObserver

	{

public:	// methods

	static CMessageComposerDriver* NewL(MDriverObserver& aObserver);

	virtual ~CMessageComposerDriver();

	void SetMessageData(const TDesC8& aMessageData);

	void SetStartLine(const TDesC8& aToken1, const TDesC8& aToken2, const TDesC8& aToken3);

	void SetHeaderL(const TDesC8& aFieldName, const TDesC8& aFieldValue);

	void SetBodyDataL(const TDesC8& aBodyPart);

	void SetBodySize(TInt aSize);

	void SetTrailerL(const TDesC8& aFieldName, const TDesC8& aFieldValue);

	void Start(TInt aExpectedError, TBool aTestReset = EFalse);

private:	// methods from CActive

	virtual void RunL();

	virtual void DoCancel();

	virtual TInt RunError(TInt aError);

private:	// methods from MHttpMessageComposerObserver

	virtual void StartLineL(TPtrC8& aToken1, TPtrC8& aToken2, TPtrC8& aToken3);

	virtual TInt NextHeaderL(TPtrC8& aHeaderName, TPtrC8& aHeaderValue);

	virtual MHTTPDataSupplier* HasBodyL();

	virtual TInt NextTrailerL(TPtrC8& aHeaderName, TPtrC8& aHeaderValue);

	virtual void MessageComplete();

	virtual void MessageDataReadyL();

	virtual TInt HandleComposeError(TInt aError);

	virtual void Reserved_MHttpMessageComposerObserver();

private:	// methods from MBodyDataSupplierObserver

	virtual void NotifyMoreData();

private:	// enums

	enum TMessageState

		{

		EPendingStartLine			= 0,

		EPendingNextHeader,

		EPendingHasBody,

		EPendingNextTrailer,

		EPendingMessageComplete,

		EDone

		};

private:	// helper classes

	class THeaderField

		{

	public:	// methods

		THeaderField(const TDesC8& aName, const TDesC8& aValue) : iName(aName), iValue(aValue) {};

	public:	// attributes

		TPtrC8		iName;

		TPtrC8		iValue;

		};

private:	// methods

	CMessageComposerDriver(MDriverObserver& aObserver);

	void ConstructL();

	void CompleteSelf();

	void DoReset();

private:

	MDriverObserver&		iObserver;

	RHttpMessageComposer	iMessageComposer;

	TMessageState			iState;

	TPtrC8					iMessageData;

	TPtrC8					iExpectedData;

	TPtrC8					iStartLine1;

	TPtrC8					iStartLine2;

	TPtrC8					iStartLine3;

	RArray<THeaderField>	iHeaders;

	TInt					iHeaderIndex;

	RArray<THeaderField>	iTrailers;

	TInt					iTrailerIndex;

	CBodyDataSupplier*		iBodyData;

	TInt					iExpectedError;

	TBool					iTestFailed;

	TInt					iResetIndex;

	TBool					iDoReset;

	TBool					iReset;

	TMessageState			iResetState;

	TInt					iChunkCount;

	TInt					iChunkIndex;

	TInt					iMessageChunk;

	TInt					iMessageIndex;

	};

#endif	// __CMESSAGECOMPOSERDRIVER_H__