/*

* Copyright (c) 2005-2006 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:  javaregdirectoryobserver definition

*

*/

#ifndef JAVAREGDIRECTORYOBSERVER_H

#define JAVAREGDIRECTORYOBSERVER_H

// INCLUDES

#include <e32base.h>

#include <f32file.h>

#include "mjavaregcacheupdater.h"

namespace Java

{

namespace Manager

{

namespace Registry

{

/**

 * This class monitors the changes in the directory given as parameter,

 * and notifies the store to update it's cache accordingly.

 *

 * @since S60 v3.2

 */

// CLASS DECLARATION

NONSHARABLE_CLASS(CJavaRegDirectoryObserver) :

        public CActive

{

public:

    /**

     * Creates an object of this class.

     *

     * @since S60 v3.2

     * @param aCacheUpdater The object to notify about the changes.

     * @param aFs File server session, to subscribe to changes.

     * @param aDrive The drive, wich the path in the registry represents.

     * @param aPath The path to monitor.

     */

    static CJavaRegDirectoryObserver* NewL(

        MJavaRegCacheUpdater& aCacheUpdater,

        RFs& aFs,

        TInt aDrive,

        const TDesC& aPath);

    /**

     * Creates an object of this class.

     *

     * @since S60 v3.2

     * @param aCacheUpdater The object to notify about the changes.

     * @param aFs File server session, to subscribe to changes.

     * @param aDrive The drive, wich the path in the registry represents.

     * @param aPath The path to monitor.

     */

    static CJavaRegDirectoryObserver* NewLC(

        MJavaRegCacheUpdater& aCacheUpdater,

        RFs& aFs,

        TInt aDrive,

        const TDesC& aPath);

    /**

     * Destructor

     * @since S60 v3.2

     */

    ~CJavaRegDirectoryObserver();

    /**

     * Refreshes the iEntryList member.

     *

     * @since S60 v3.2

     */

    void RefreshEntryListL();

    /**

     * Returns the iPath member.

     *

     * @since S60 v3.2

     * @return The iPath member.

     */

    const TDesC& Path() const;

    /**

     * Sets the iPath member to the given parameter value.

     *

     * @since S60 v3.2

     * @param aPath The path to monitor.

     */

    void SetPathL(const TDesC& aPath);

    /**

     * Returns the iDrive member.

     *

     * @since S60 v3.2

     * @return The iDrive member..

     */

    TInt Drive() const;

public:     // from CActive

    /**

     * RunL

     */

    void RunL();

    /**

     * DoCancel

     */

    void DoCancel();

    /**

     * RunError

     */

    TInt RunError(TInt aError);

private:

    /**

     * Constructor

     *

     * @since S60 v3.2

     * @param aCacheUpdater The object to notify about the changes.

     * @param aFs File server session, to subscribe to changes.

     * @param aDrive The drive, wich the path in the registry represents.

     */

    CJavaRegDirectoryObserver(

        MJavaRegCacheUpdater& aCacheUpdater,

        RFs& aFs,

        TInt aDrive);

    /**

     * 2nd phase constructor.

     *

     * @since S60 v3.2

     * @param aPath The path to monitor.

     */

    void ConstructL(const TDesC& aPath);

private:

    // The object to notify about the changes.

    MJavaRegCacheUpdater& iCacheUpdater;

    // File server session, to subscribe to changes.

    RFs& iFs;

    // The drive, wich the path in the registry represents.

    TInt iDrive;

    // The path to monitor.

    TPath iPath;

    // The file-entrylist of the iPath directory.

    CDir* iEntryList;

};

}//namespace Registry

}//namespace Manager

}//namespace Java

#endif // JAVAREGDIRECTORYOBSERVER_H

// End of File