/*

* 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 the License "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: 

* CFSCertAppsServer class implementation

*

*/

/**

 @file 

 @internalTechnology

*/

#ifndef __CFSCERTAPPSSERVER_H__

#define __CFSCERTAPPSSERVER_H__

#include <e32base.h>

#include <f32file.h>

#include <s32file.h>

#include <mctcertapps.h>

class CFSCertAppsToken;

class CCertAppsSession;

class CCertAppsConduit;

class CFSCertAppsServer : public CBase

	{

public:

	static CFSCertAppsServer* NewL();

	virtual ~CFSCertAppsServer();

	CCertAppsSession* CreateSessionL();

public: 

	void AddL(const TCertificateAppInfo& aClient);

	void RemoveL(const TUid& aUid);

	TInt ApplicationCountL() const;

	void ApplicationsL(RArray<TCertificateAppInfo>& aAppArray) const;

	void ApplicationL(const TUid& aUid, TCertificateAppInfo& aInfo) const;

private:

	CFSCertAppsServer();

	void ConstructL();

	/// Finds an application and returns NULL if not found - if aIndex is not

	/// null then index is copied there

	const TCertificateAppInfo* FindApplication(const TUid& aUid, TInt* aIndex = NULL) const;

	/// Configures the object from the file store. Will create a new store

	/// if one does not exist

	void OpenStoreL();

	/// Opens a Composite store present under ROM drive.

	void OpenCompositeStoreL(const TDesC& aFilename);

	/// Attempt to load the cert apps from the given file

	void ReadStoreContentsL(const TDesC& aFilename);

	/// Create a new empty store

	void CreateStoreL(const TDesC& aFilename);

	/// aggregate the store files

	void AggregateStoreFileL(const TDesC& aFile);

	/// aggregate certificate client entries.

	void MergeCertificateEntryListL(const RArray<TCertificateAppInfo>& aSourceList);	

	/// finds if an uid exists in the entry list 

	TBool FindUid(const TUid& aUid);

	// TCleanup items used when creating a store or replacing a stream

	static void DeleteStoreFile(TAny* aThis);

	static void RevertStore(TAny* aStore);

	/// Replaces the store - called by both Add and Remove.

	/// Leaves if failed. ExcludedIndex is the index into the 

	/// array to be excluded. -1 if none are excluded

	void ReplaceAndCommitL(TInt aExcludedIndex = -1);

	/// Externalizes the array into a stream - commits it if successful

	void WriteClientArrayL(RWriteStream& stream, TInt aExcludedIndex = -1) const;

private:

	/// The conduit object used for marshalling/unmarshalling client communications

	CCertAppsConduit* iConduit;

	RFs iFs;

	/// The store where the client are stored

	CPermanentFileStore* iStore;

	TStreamId iId;	

	/// A cache of the contents of the store

	RArray<TCertificateAppInfo> iClients;

	/// Used to distinguish variant specific feature from the default. 

	TUint8 iPatchableConst;

	};

#endif	//	__CFSCERTAPPSSERVER_H__