/*

* Copyright (c) 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: Declaration of CSsmPolicyBase class.

*

*/

#ifndef C_SSMPOLICYBASE_H

#define C_SSMPOLICYBASE_H

#include <e32base.h>

#include <f32file.h>

#include <ssm/ssmconditionalcallback.h>

class CConditionEvaluate;

class CSsmCommandListResourceReader;

class CSsmMapperUtility;

class TSsmState;

/**

*  Base class for SSM policy plugins

*

*/

class CSsmPolicyBase : public CBase, public MSsmConditionalCallback

    {

public:

    /**

    * First phase constructor.

    */

    IMPORT_C CSsmPolicyBase();

    /**

    * Destructor.

    */

    IMPORT_C virtual ~CSsmPolicyBase();

protected: // from MSsmConditionalCallback

    /**

    * @see MSsmConditionalCallback

    */

	IMPORT_C TBool ConditionalCommandAllowedL(

	    CResourceFile& aResourceFile,

	    TInt aResourceId );

protected:

    /**

    * Getter for policy-specific command list path.

    *

    * @param aCmdListPath On return contains the command list path.

    */

    virtual void GetCommandListPathL( TDes& aCmdListPath ) = 0;

protected:

    /**

    * Getter for current system state.

    *

    * @param aState On return contains current system state.

    */

    IMPORT_C TInt GetCurrentState( TSsmState& aState ) const;

protected:

    /**

    * Second phase constructor.

    */

    IMPORT_C void BaseConstructL();

    /**

    * Read, increment and update reset counter in Cenrep.

    *

    * @return ETrue if the reset counter in Cenrep is greater than or equal to

    * the reset limit.

    */

    IMPORT_C TBool ResetLimitReached();

private:

    TBool ResetLimitReachedL();

protected: // data

    /** File server session for the use of derived classes. */

	RFs iFs;

    /** 

    * Mapper utility instance for the use of base and all derived classes.

    * Own. Not NULL. 

    */

	CSsmMapperUtility* iUtil;

	/** Resource reader. Own. Not NULL. */

	CSsmCommandListResourceReader* iCommandListResourceReader;

private: // data

    /** Used to evaluate conditions in command lists. Not NULL. Own. */

    CConditionEvaluate* iEvaluator;

    };

#endif // C_SSMPOLICYBASE_H