// Copyright (c) 2006-2009 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:

//

#include "rmtpdpsingletons.h"

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/cmtpobjectmetadata.h>

// Class constants.

__FLOG_STMT(_LIT8(KComponent,"DataProviderSingletons");)

/**

Constructor.

*/

EXPORT_C RMTPDpSingletons::RMTPDpSingletons() :

    iSingletons(NULL)

    {

    }

/**

Opens the singletons reference.

*/

EXPORT_C void RMTPDpSingletons::OpenL(MMTPDataProviderFramework& aFramework)

    {

    __FLOG_OPEN(KMTPSubsystem, KComponent);

    __FLOG(_L8("OpenL - Entry"));

    iFramework = &aFramework;

    iSingletons = &CSingletons::OpenL(aFramework);

    __FLOG(_L8("OpenL - Exit"));

    }

/**

Closes the singletons reference.

*/

EXPORT_C void RMTPDpSingletons::Close()

    {

    __FLOG(_L8("Close - Entry"));

    if (iSingletons)

        {

        iSingletons->Close();

        iSingletons = NULL;

        }

    __FLOG(_L8("Close - Exit"));

    __FLOG_CLOSE;

    }

/**

This method finds the specific data provider's file system exclusion manager based on the 

DP ID and returns it.

@return the calling data provider's file system exclusion manager

*/	

EXPORT_C CMTPFSExclusionMgr& RMTPDpSingletons::ExclusionMgrL() const

	{

	TExclusionMgrEntry entry = { 0, iFramework->DataProviderId() };

	TInt index = iSingletons->iExclusionList.FindInOrderL(entry, TLinearOrder<TExclusionMgrEntry>(TExclusionMgrEntry::Compare));

	return *(iSingletons->iExclusionList[index].iExclusionMgr);

	}

/**

Inserts the calling data provider's file system exclusion manager to an ordered list 

based on the the DP ID.

@param aExclusionMgr a reference to a data provider's file system exclusion manager.

*/	

EXPORT_C void RMTPDpSingletons::SetExclusionMgrL(CMTPFSExclusionMgr& aExclusionMgr)

	{

	TExclusionMgrEntry entry = { &aExclusionMgr, iFramework->DataProviderId() };

	iSingletons->iExclusionList.InsertInOrderL(entry, TLinearOrder<TExclusionMgrEntry>(TExclusionMgrEntry::Compare));

	}

TInt RMTPDpSingletons::TExclusionMgrEntry::Compare(const TExclusionMgrEntry& aFirst, const TExclusionMgrEntry& aSecond)

	{

	return (aFirst.iDpId - aSecond.iDpId);

	}

RMTPDpSingletons::CSingletons* RMTPDpSingletons::CSingletons::NewL(MMTPDataProviderFramework& aFramework)

    {

    CSingletons* self(new(ELeave) CSingletons());

    CleanupStack::PushL(self);

    self->ConstructL(aFramework);

    CleanupStack::Pop(self);

    return self;

    }

RMTPDpSingletons::CSingletons& RMTPDpSingletons::CSingletons::OpenL(MMTPDataProviderFramework& aFramework)

    {

    __FLOG_STATIC(KMTPSubsystem, KComponent, _L8("CSingletons::OpenL - Entry"));

    CSingletons* self(reinterpret_cast<CSingletons*>(Dll::Tls()));

    if (!self)

        {

        self = CSingletons::NewL(aFramework);

        Dll::SetTls(reinterpret_cast<TAny*>(self));

        }

    else

        {        

        self->Inc();

        }

    __FLOG_STATIC(KMTPSubsystem, KComponent, _L8("CSingletons::OpenL - Exit"));

    return *self;

    }

void RMTPDpSingletons::CSingletons::Close()

    {

    CSingletons* self(reinterpret_cast<CSingletons*>(Dll::Tls()));

    if (self)

        {

        __FLOG(_L8("CSingletons::Close - Entry"));

        self->Dec();

        if (self->AccessCount() == 0)

            {

            __FLOG(_L8("CSingletons::Close - Exit"));

            delete self;

            Dll::SetTls(NULL);

            }

        else

            {

            __FLOG(_L8("CSingletons::Close - Exit"));

            }

        }

    }

RMTPDpSingletons::CSingletons::~CSingletons()

    {

    __FLOG(_L8("CSingletons::~CSingletons - Entry"));

    iExclusionList.Close();

    iMTPUtility.Close();

    __FLOG(_L8("CSingletons::~CSingletons - Exit"));

    __FLOG_CLOSE;

    }

void RMTPDpSingletons::CSingletons::ConstructL(MMTPDataProviderFramework& aFramework)

    {

    __FLOG_OPEN(KMTPSubsystem, KComponent);

    __FLOG(_L8("CSingletons::ConstructL - Entry"));

    iMTPUtility.OpenL(aFramework);

    __FLOG(_L8("CSingletons::ConstructL - Exit"));

    }

EXPORT_C RMTPUtility& RMTPDpSingletons::MTPUtility() const

	{

	return iSingletons->iMTPUtility;

	}