/*

* Copyright (c) 2006-2009 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          : InviteServerTaStates.h

* Part of       : Transaction

* Version       : SIP/5.0

*

*/

/**

 @internalComponent

*/

#ifndef INVITESERVERTASTATES_H

#define INVITESERVERTASTATES_H

// INCLUDES

#include "SipLogs.h"    //for USE_SIP_LOGS

#include "TransactionState.h"

// CLASS DECLARATION

//Waiting for final response from UserAgent

class CInviteServerTa_Proceeding : public CTransactionState

	{

public: // Constructors and destructor

	CInviteServerTa_Proceeding();

	~CInviteServerTa_Proceeding();

public: // From CTransactionState

    void GetState(CSIPInternalStates::TState& aState) const;

#if defined(USE_SIP_LOGS)

	const TDesC8& Log() const;

#endif	

    void ReceiveL(CTransaction& aTransaction, CSIPRequest* aRequest) const;

	void SendResponseL(CTransaction& aTransaction,

					   CSIPResponse* aResp,

					   RStringF aProtocol,

					   const TSIPTransportParams& aParams) const;

	void SendCompleteL(CTransaction& aTransaction) const;

	void SendFailedL(CTransaction& aTransaction, TInt aError) const;

public: // New functions

	void SetNeighbourStates(CTransactionState& aCompleted,

							CTransactionState& aSending2xx);

private: // Data

	//Next possible states, not owned.

	CTransactionState* iCompleted;

	CTransactionState* iSending2xx;

	};

//Waiting for ACK from remote endpoint.

class CInviteServerTa_Completed : public CTransactionState

	{

public: // Constructors and destructor

	CInviteServerTa_Completed();

	~CInviteServerTa_Completed();

public: // From CTransactionState

    void GetState(CSIPInternalStates::TState& aState) const;

#if defined(USE_SIP_LOGS)

	const TDesC8& Log() const;

#endif	

	void SendCompleteL(CTransaction& aTransaction) const;

	void SendFailedL(CTransaction& aTransaction, TInt aError) const;

    void ReceiveL(CTransaction& aTransaction, CSIPRequest* aRequest) const;

	void TimerExpiredL(CTransaction& aTransaction,

					   TTimerId aTimerId,

					   TAny* aTimerParam) const;

public: // New functions

	void SetNeighbourStates(CTransactionState& aConfirmed);

private: // Data

	//Next possible state, not owned.

	CTransactionState* iConfirmed;

	};

//Absorb any restransmissions of ACK

class CInviteServerTa_Confirmed : public CTransactionState

	{

public: // Constructors and destructor

	CInviteServerTa_Confirmed();

	~CInviteServerTa_Confirmed();

public: // From CTransactionState

    void GetState(CSIPInternalStates::TState& aState) const;

#if defined(USE_SIP_LOGS)

	const TDesC8& Log() const;

#endif

	TBool CanContinueWithoutOutgoingMsg() const;

	//These can happen if transaction entered Confirmed state before a

	//retransmission was completed.

	void SendCompleteL(CTransaction& aTransaction) const;

	void SendFailedL(CTransaction& aTransaction, TInt aError) const;

    void ReceiveL(CTransaction& aTransaction, CSIPRequest* aRequest) const;

	void TimerExpiredL(CTransaction& aTransaction,

					   TTimerId aTimerId,

					   TAny* aTimerParam) const;	

	};

class CInviteServerTa_Sending2xx : public CTransactionState

	{

public: // Constructors and destructor

	CInviteServerTa_Sending2xx();

	~CInviteServerTa_Sending2xx();

public: // From CTransactionState

    void GetState(CSIPInternalStates::TState& aState) const;

#if defined(USE_SIP_LOGS)

	//Transition to Sending2xx state isn't written to log, but

	//CInviteServerTa_Sending2xx::Log() method is required to be able to write

	//the transition from Sending2xx to Terminated state into log

	const TDesC8& Log() const;

#endif

	TBool CanContinueWithoutOutgoingMsg() const;

	void SendCompleteL(CTransaction& aTransaction) const;

	void SendFailedL(CTransaction& aTransaction, TInt aError) const;

	//Since UAS clears CTransaction from CTransactionStore when it sends 2xx,

	//further ReceiveL events are directed to UAS	

	};

#endif // end of INVITESERVERTASTATES_H

// End of File