/*

* Copyright (c) 2007 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:  Encapsulates factory plugin loading mechanism

*

*/

#include <ecom/ecom.h>

//#include <alf/alfecompluginfactoryuid.rh>

#include <alf/ialffactoryplugin.h>

#include <string.h>

#include <memory>

#include <osn/osnnew.h>

#include <stdexcept>

#include "alf/alfecompluginfactoryuid.rh"

#include "alffactorypluginloaderimpl.h"

using namespace std;

namespace Alf

    {

class AlfFactoryPluginMap

    {

public:

    AlfFactoryPluginMap();

    ~AlfFactoryPluginMap();

    /**

     * Owned factory plugin.

     */

    IAlfFactoryPlugin*  mFactoryPlugin;

    /**

     * ECom destructor handle.

     */

    int    mDtorKey;

    };

static bool loadPluginIntoMap(

    AlfFactoryPluginMap*& aMap,

    const char* aProduct)

    {

    TEComResolverParams resolverParams;

    resolverParams.SetDataType(TPtrC8((TUint8*)aProduct));

    resolverParams.SetWildcardMatch(ETrue);

    TAny* plugin = NULL;

    TUid tmpDtor;

    TRAPD(err,plugin = REComSession::CreateImplementationL(

                           TUid::Uid(KFactoryPluginUid),

                           tmpDtor,resolverParams))

    if (!err)

        {

        aMap->mDtorKey = tmpDtor.iUid;

        aMap->mFactoryPlugin = reinterpret_cast<IAlfFactoryPlugin*>(

                                                            plugin);

        return true;

        }

    return false;

    }

AlfFactoryPluginMap::AlfFactoryPluginMap()

        :mFactoryPlugin(0),mDtorKey(0)

    {

    }

AlfFactoryPluginMap::~AlfFactoryPluginMap()

    {

    if (mFactoryPlugin)

        {

        REComSession::DestroyedImplementation(TUid::Uid(mDtorKey));

        delete mFactoryPlugin;

        }

    }

AlfFactoryPluginLoaderImpl::AlfFactoryPluginLoaderImpl()

    {

    }

AlfFactoryPluginLoaderImpl::~AlfFactoryPluginLoaderImpl()

    {

    mFactoryPluginList.clear();

    }

IAlfFactoryPlugin* AlfFactoryPluginLoaderImpl::load(

    const char*  aLoadId)

    {

    IAlfFactoryPlugin* ret(0);

    IAlfFactoryPlugin* tmp(0);

    // Do we have it already?

    unsigned int itemCount(mFactoryPluginList.count());

    for (int i=0;i<itemCount && !ret;i++)

        {

        tmp = mFactoryPluginList.at(i)->mFactoryPlugin;

        int productCount = tmp->productCount();

        for (int j=0;j<productCount && !ret;j++)

            {

            if (!strcmp(tmp->productInfo(j),aLoadId ))

                {

                ret = tmp;

                }

            }

        }

    if (!ret)

        {

        auto_ptr<AlfFactoryPluginMap> mapPtr(new(EMM)AlfFactoryPluginMap());

        AlfFactoryPluginMap* map = mapPtr.get();

        if (loadPluginIntoMap(map,aLoadId))

            {

            ret = mapPtr->mFactoryPlugin;

            mFactoryPluginList.resize(itemCount+1);

            mFactoryPluginList.insert(itemCount,map);

            mapPtr.release();

            }

        }

    return ret;

    }

    }

// End of File