/*

* Copyright (c) 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:  

*

*/

#include <e32property.h>

#include "catalogsserverengine.h"

#include "catalogssession.h"

#include "ncdproviderimpl.h"

#include "catalogsdebug.h"

#include "catalogsconstants.h"

#include "catalogsuids.h"

#include "ncdprovidermanager.h"

// ======== MEMBER FUNCTIONS ========

CCatalogsServerEngine::CCatalogsServerEngine()

    {

    }

void CCatalogsServerEngine::ConstructL()

    {

    DLTRACEIN((""));

    // Define the Catalogs Engine maintenance lock property, if not already

    // defined.

    // Don't use explicit category UID, server SID instead?

    //  - explicit category UID requires WriteDeviceData cap. Well we have it but anyway.

    // Security policy

//    TSecurityPolicy readPolicy;

//    TSecurityPolicy writePolicy;

    _LIT_SECURITY_POLICY_PASS( readPolicy );

    _LIT_SECURITY_POLICY_PASS( writePolicy );

    DLINFO(( "Defining catalogs engine maintenance lock property" ));

    TInt err = RProperty::Define( 

        KCatalogsEnginePropertyCategory,

        KCatalogsEnginePropertyKeyMaintenanceLock,

        RProperty::EInt,

        readPolicy,

        writePolicy );

    if( err != KErrNone && err != KErrAlreadyExists ) 

        {

        DLERROR(( "Maintenance lock property create failed with %d", err ));

        DLTRACEOUT(( "LEAVE %d", err ));

        User::Leave( err );

        }

    DLINFO(( "Maintenance lock property define returned %d", err ));

    iProviderManager = CNcdProviderManager::NewL();

    DLTRACEOUT((""));

    }

CCatalogsServerEngine* CCatalogsServerEngine::NewL()

    {

    CCatalogsServerEngine* self = CCatalogsServerEngine::NewLC();

    CleanupStack::Pop( self );

    return self;

    }

CCatalogsServerEngine* CCatalogsServerEngine::NewLC()

    {

    CCatalogsServerEngine* self = new( ELeave ) CCatalogsServerEngine;

    CleanupStack::PushL( self );

    self->ConstructL();

    return self;

    }

CCatalogsServerEngine::~CCatalogsServerEngine()

    {

    DLTRACEIN((""));

    // Engine is going to be killed and we can free our reference to

    // the provider

    delete iProviderManager;

    DLTRACEOUT((""));

    }

void CCatalogsServerEngine::CreateProviderL(

    MCatalogsSession& aSession,

    TInt aProvider,

    TInt& aHandle,

    TUint32 aOptions )

    {

    DLTRACEIN(( "aProvider=%08x", aProvider ));

    // Providers, who we know

    TInt providerUid( KNcdProviderUid ); // only one uid is known at the moment

    if ( aProvider == providerUid )

        {

        TBool created = EFalse;

        // if created==ETrue, provider's refcount is 1, otherwise it's > 1

        CNcdProvider& provider = iProviderManager->ProviderL(

            aSession.Context(), created );        

        TRAPD( err, 

            {

            provider.PrepareSessionL( aSession, aOptions );

            // AddObjectL increases provider's refcount by 1

            aHandle = aSession.AddObjectL( &provider );

            });

        if ( created ) 

            {

            if ( err != KErrNone ) 

                {

                provider.Close();

                }

            if ( provider.DatabaseClearingStatus() && err == KErrNone ) 

                {

                DLTRACE(("Databases were cleared, status: %d", 

                    provider.DatabaseClearingStatus() ));

                User::Leave( provider.DatabaseClearingStatus() );

                }

            }

        User::LeaveIfError( err );

        }

    else

        {

        DLWARNING(( "Unknown provider" ));        

        User::Leave( KErrNotFound );

        }

    DLTRACEOUT((""));

    }

void CCatalogsServerEngine::HandleSessionRemoval( 

    MCatalogsSession& aSession )

    {

    DLTRACEIN((""));

    CNcdProvider* provider = iProviderManager->Provider( aSession.Context() );

    if ( provider )

        {

        provider->HandleSessionRemoval( aSession );

        // Remove provider manager's reference

        if ( provider->AccessCount() == 1 ) 

            {

            DLTRACE(("Last session, deleting provider"));

            provider->Close();

            }            

        }

    DLTRACEOUT((""));

    }