/*

* Copyright (c) 2006-2007 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 CNATFWUNSAFLIFETIMEATTRIBUTE_H

#define CNATFWUNSAFLIFETIMEATTRIBUTE_H

#include "natfwunsafattribute.h"

/**

 * Class for LIFETIME attribute.

 *

 *  @lib natfwunsafprotocols.lib

 *  @since S60 3.2

 */

class CNATFWUNSAFLifetimeAttribute : public CNATFWUNSAFAttribute

    {

public: // Constructors and destructor

    /**

    * Creates a new instance of CNATFWUNSAFLifetimeAttribute

    * @param aLifetime Lifetime

    * @return A new instance of CNATFWUNSAFLifetimeAttribute

    *          ownership is transferred.

    */

    IMPORT_C static CNATFWUNSAFLifetimeAttribute*

        NewL(TInt aLifetime);

    /**

    * Creates a new instance of CNATFWUNSAFLifetimeAttribute and

    * pushes it to the CleanupStack.

    * @param aLifetime Lifetime

    * @return A new instance of CNATFWUNSAFLifetimeAttribute,

    *          ownership is transferred.

    */

    IMPORT_C static CNATFWUNSAFLifetimeAttribute*

        NewLC(TInt aLifetime);

    /**

    * Decodes a UNSAF attribute from a byte stream.

    * This version is for lookup table.

    * @param aByteStream Byte stream, containing attribute type, length and

    *    value.

    * @return Decoded UNSAF attribute, ownership is transferred.

    */

    static CNATFWUNSAFAttribute* DecodeAttributeL(

        const TDesC8& aByteStream);

    /**

    * Destructor, deletes the resources of CNATFWUNSAFLifetimeAttribute.

    */

    ~CNATFWUNSAFLifetimeAttribute();

public: // From CNATFWUNSAFAttribute

    CNATFWUNSAFAttribute::TType Type() const;

    HBufC8* EncodeValueL() const;

public: // New functions

    /**

    * Returns the Lifetime.

    * @return Lifetime

    */

    IMPORT_C TInt Lifetime() const;

private:

    enum TEncodedValue

        {

        //Size in bytes of the attribute value

        EAttributeValueSize = 4

        };

private: // Constructors

    CNATFWUNSAFLifetimeAttribute();

    void ConstructL(TInt aLifetime);

private: // Data

    TInt iLifetime;

    };

#endif // CNATFWUNSAFLIFETIMEATTRIBUTE_H