/*

* Copyright (c) 2005 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 CSIPRESPONSEELEMENTS_H

#define CSIPRESPONSEELEMENTS_H

//  INCLUDES

#include <e32base.h>

#include <s32strm.h>

#include <stringpool.h>

#include "_sipcodecdefs.h"

// FORWARD DECLARATIONS

class CSIPMessageElements;

class CSIPFromHeader;

class CSIPToHeader;

class CSIPCSeqHeader;

// CLASS DECLARATION

/**

*  @publishedAll

*

*  Class provides services for creating and manipulating SIP responses

*  This class is used for creating and manipulating SIP responses including

*  status code, reason phrase and optional elements such user headers,

*  content and its type.

*

*  @lib sipclient.lib

*/

class CSIPResponseElements : public CBase

	{

    public:  // Constructors and destructor       

	    /**

        * Two-phased constructor.

        * @pre aStatusCode > 100 && aStatusCode < 700

	    * @param aStatusCode a known SIP response status code. Cannot be 100.

		* @param aReasonPhrase a SIP response reason phrase.

        */

		IMPORT_C static CSIPResponseElements* NewL(TUint aStatusCode,

		                                           RStringF aReasonPhrase);

	    /**

        * Two-phased constructor.

        * @pre aStatusCode > 100 && aStatusCode < 700

	    * @param aStatusCode a known SIP response status code. Cannot be 100.

		* @param aReasonPhrase a SIP response reason phrase.

        */

		IMPORT_C static CSIPResponseElements* NewLC(TUint aStatusCode,

		                                            RStringF aReasonPhrase);

        /**

        * Destructor.

        */

		IMPORT_C ~CSIPResponseElements();

    public: // New functions

		/**

		* Sets a SIP Response extension status code. It is not possible to set

        * value 100.

        * @pre aStatusCode > 100 && aStatusCode < 700

		* @param aStatusCode extension status code

		* @leave KErrArgument if aStatusCode < 100 or aStatusCode >= 700

		*/

		IMPORT_C void SetStatusCodeL(TUint aStatusCode);

		/**

		* Gets the SIP Response status code

		* @return SIP Response status code

		*/

		IMPORT_C TUint StatusCode() const;

		/**

		* Sets a SIP Response Reason Phrase.

		* @param aReasonPhrase a SIP response reason phrase.

		*/

		IMPORT_C void SetReasonPhraseL(RStringF aReasonPhrase);

		/**

		* Gets a SIP Response Reason Phrase.

		* @return a SIP response reason phrase or an empty string if

        *   the reason phrase is not defined.

		*/

		IMPORT_C RStringF ReasonPhrase() const;

		/**

		* Gets the originator's From-header

		* @return a From-header or a 0-pointer if not present. Ownership is

        *   not transferred.

		*/

		IMPORT_C const CSIPFromHeader* FromHeader() const;

		/**

		* Gets the recipient's To-header

		* @return a To-header or a 0-pointer if not present. Ownership is

        *   not transferred.

		*/

		IMPORT_C const CSIPToHeader* ToHeader() const;

		/**

		* Gets CSeq-header

		* @return a CSeq-header or a 0-pointer if not present. Ownership is

        *   not transferred.

		*/		

		IMPORT_C const CSIPCSeqHeader* CSeqHeader() const;

		/**

		* Gets message elements (contains all SIP user headers and content)

		* @return message elements

		*/

		IMPORT_C const CSIPMessageElements& MessageElements() const;

		/**

		* Gets message elements (contains all SIP user headers and content)

		* The response elements can be populated with SIP user headers

		* and content using returned reference to the message elements.

		* @return message elements

		*/

		IMPORT_C CSIPMessageElements& MessageElements();

    public: // New functions, for internal use

        static CSIPResponseElements* InternalizeL (RReadStream& aReadStream);

        static CSIPResponseElements* InternalizeLC (RReadStream& aReadStream);

        void ExternalizeL (RWriteStream& aWriteStream) const;

    private:

	    CSIPResponseElements();

	    void ConstructL(TUint aStatusCode, RStringF aReasonPhrase);

	    void DoInternalizeL (RReadStream& aReadStream);

    private: // Data

	    TUint iStatusCode;

	    RStringF iReasonPhrase;

        CSIPMessageElements* iMessageElements;

	};

#endif // end of CSIPRESPONSEELEMENTS_H