// Copyright (c) 2002-2009 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:

//

#ifndef __LOGBACKUP_H__

#define __LOGBACKUP_H__

#include <babackup.h>

#include "LogServBackupInterface.h"

#include "LogServBackupObserver.h"

/////////////////////////////////////////////////////////////////////////////////////////

// -----> CLogServBackupManagerManager (header)

/////////////////////////////////////////////////////////////////////////////////////////

/**

@internalComponent

*/

class CLogServBackupManager : public CTimer, public MBackupObserver, public MLogServBackupInterface

	{

public:

	static CLogServBackupManager* NewL(TInt aPriority = CActive::EPriorityStandard);

	~CLogServBackupManager();

private:

	CLogServBackupManager(TInt aPriority);

	void ConstructL();

public: // From MLogServBackupInterface

	void BIObserverAddL(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority);

	void BIObserverRemove(MLogServBackupObserver& aObserver);

	//

	TLogServBackupState BIState() const;

	TInt BIErrorValueForCurrentState() const;

	//

	void BISetDatabaseNameL(const TDesC& aDatabaseName);

private: // From CActive

	void RunL();

	TInt RunError(TInt aError);

private: // Internal structs

	struct TLogBackupNotificationEntry

		{

	public:

		inline TLogBackupNotificationEntry(MLogServBackupObserver& aObserver, TLogServBackupPriority aPriority) : iObserver(aObserver), iPriority(aPriority) { };

	public:

		MLogServBackupObserver& iObserver;

		TLogServBackupPriority iPriority;

		};

private:

	TInt NotifyObservers(MLogServBackupObserver::TLogServBackupEvent aEvent);

	void ChangeFileLockL(const TDesC& aFileName,TFileLockFlags aFlags);

	CBaBackupSessionWrapper* CreateBackupL(const TDesC& aLogDatabaseFileName);

	static TInt CompareEntries(const TLogBackupNotificationEntry& aLeft, const TLogBackupNotificationEntry& aRight);

private:

	/**

	 * So we can check we only act upon the correct backup event... essentially

	 * we are not trusting the backup server to do the right thing.

	 */

	HBufC* iDatabaseName;

	/**

	 * Interface to the backup server

	 */

	CBaBackupSessionWrapper* iBackup;

	/**

	 * Current state

	 */

	TLogServBackupState iState;

	/**

	 * Backup notification queue

	 */

	RArray<TLogBackupNotificationEntry> iObservers;

	};

#endif