/*

* 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:

* Name          : CSIPMsgAssembler.h

* Part of       : ConnectionMgr

* Version       : SIP/4.0 

*

*/

/**

 @internalComponent

*/

#ifndef __CSIPMSGASSEMBLER_H__

#define __CSIPMSGASSEMBLER_H__

#include <e32base.h>

#include "MMsgAssemblerContext.h"

class CSIPMessage;

class MSIPMsgAssemblerOwner;

class MSigCompController;

class TTCPMsgState;

class CSIPMsgAssembler : public CBase, 

                         public MMsgAssemblerContext

	{

public:

	enum

		{

		EMsgBufferSize = 1000

		};

   /** 

	* Create a instance of CSIPMsgAssembler.

	* 

	* @ param aMsgOwner; a reference of MSIPMsgAssemblerOwner.

	* @ param aSigComp; Signalling compression interface

	*

    * @ return a CSIPMsgAssembler object.

	*/ 

	static CSIPMsgAssembler* NewL ( MSIPMsgAssemblerOwner& aMsgOwner,

		                            MSigCompController&    aSigComp );

   /** 

	* Create a instance of CSIPMsgAssembler and push it to cleanup stack.

	* 

	* @ param aMsgOwner; a reference of MSIPMsgAssemblerOwner.

	* @ param aSigComp; Signalling compression interface

	*

    * @ return a CSIPMsgAssembler object.

	*/ 

	static CSIPMsgAssembler* NewLC ( MSIPMsgAssemblerOwner& aMsgOwner,

		                             MSigCompController&    aSigComp );

	~CSIPMsgAssembler ();

   /**

    * Covert data to SIP message and send it to message owner.

	* 

	* @ param aData, data to be converted.

	* @ param aNextLength, next data length to be inputed.

	*/

	void InputL (HBufC8* aData, TUint& aNextLength);

	MSIPMsgAssemblerOwner& MsgOwner();

	MSigCompController& SigComp();

	CBufFlat& MsgBuffer();

	/**

    * Obtain a pointer to the stored SIP message.

	* 

	* @return SIP message, ownership is not transferred

	*/	

    CSIPMessage* Message();

    /**

    * Store aMessage and discard the previous message.

	* 

	* @param aMessage SIP message, ownership is transferred	

	*/

    void SetMessage( CSIPMessage* aMessage );

    void DetachMsg();

    void ChangeState( MMsgAssemblerContext::TTCPMsgStateValue aStateValue );

    TTCPMsgState& CurrentState();

    void SetIsSigComp( TBool aIsSigComp );

    TBool IsSigComp() const;

    void SetUnConsumedBytes( TInt aUnConsumedBytes );

    TInt UnConsumedBytes() const;

private:

	CSIPMsgAssembler (MSIPMsgAssemblerOwner& aMsgOwner,

		              MSigCompController&       aSigComp);

	void ConstructL ();

private:

	static void ResetState ( TAny* aMsgAssembler );

private:

	MSIPMsgAssemblerOwner& iMsgOwner;

	CBufFlat*              iMsgBuf;

	CSIPMessage*           iMessage;

	MSigCompController&    iSigComp;

	CArrayVarFlat< TTCPMsgState >           iStates;

	MMsgAssemblerContext::TTCPMsgStateValue iStateValue;

	TBool                  iIsSigComp;

	TInt                   iUnConsumedBytes;

private:

#ifdef CPPUNIT_TEST

	friend class CSIPMsgAssemblerTest;

#endif

	};

#endif // end of __CSIPMSGASSEMBLER_H__

// End of File