/*

* Copyright (c) 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:  dmencryptionutil Encryption/Decryption Interface 

*

*/

#include <ecom/implementationproxy.h>

#include <ecom/ecom.h>

#include <ecom/ecomresolverparams.h>

/**

 * C++ Destructor

 */

// Inline functions

CDMEncryptionUtil::~CDMEncryptionUtil()

	{

        // Destroy any instance variables and then

        // inform the framework that this specific 

        // instance of the interface has been destroyed.

        REComSession::DestroyedImplementation(iDtor_ID_Key);

	}

/**

 * Cleans up the ECOM plugin array

 * @param aUid , implementation Uid

 * @return Instance of CDMEncryptionUtil

 */

void CleanupEComArray(TAny* aArray)

    {

        (static_cast<RImplInfoPtrArray*> (aArray))->ResetAndDestroy();

        (static_cast<RImplInfoPtrArray*> (aArray))->Close();

    }

/**

* Create instance of CDMEncryptionUtil, this NewL always loads only the secenv hardware encryption plugin.

* @param Nil

* @return Instance of CDMEncryptionUtil

*/

inline CDMEncryptionUtil* CDMEncryptionUtil::NewL()

    {

        RImplInfoPtrArray infoArray;

        // Note that a special cleanup function is required to reset and destroy

        // all items in the array, and then close it.

        TCleanupItem cleanup(CleanupEComArray, &infoArray);

        CleanupStack::PushL(cleanup);        

        //Only ROM plugins are filtered & listed.

       TEComResolverParams resolverParams;

       _LIT8(KOperationName,"extdmencryptionutil");

       resolverParams.SetDataType(KOperationName());

       resolverParams.SetWildcardMatch(ETrue);     // Allow wildcard matching

       TRAPD(terr, REComSession::ListImplementationsL(KDMEncryptionUtilInterfaceUid, resolverParams,KRomOnlyResolverUid, infoArray));

       REComSession::FinalClose();

       if(terr)

       {

           User::Leave(terr);

       }

       {

           User::Leave(KErrBadName);

       }

       TUid retUid = infoArray[0]->ImplementationUid();

       CleanupStack::PopAndDestroy(); //cleanup

       TAny* ptr = REComSession::CreateImplementationL( retUid, _FOFF(CDMEncryptionUtil, iDtor_ID_Key));

       CDMEncryptionUtil* self = reinterpret_cast<CDMEncryptionUtil*>( ptr );

       return self;

    }

/**

* Create instance of CDMEncryptionUtil, this NewL always loads the plugin which matches with the default_data.

* @param aData default_data

* @return Instance of CDMEncryptionUtil

*       Leaves with KErrBadName: if the default_data exists more than 1.                  

*/

inline CDMEncryptionUtil* CDMEncryptionUtil::NewL(const TDesC8& aData)

    {

        RImplInfoPtrArray infoArray;

        // Note that a special cleanup function is required to reset and destroy

        // all items in the array, and then close it.

        TCleanupItem cleanup(CleanupEComArray, &infoArray);

        CleanupStack::PushL(cleanup);        

        //Only ROM plugins are filtered & listed.

       TEComResolverParams resolverParams;

       resolverParams.SetDataType(aData);

       resolverParams.SetWildcardMatch(ETrue);     // Allow wildcard matching

       TRAPD(terr, REComSession::ListImplementationsL(KDMEncryptionUtilInterfaceUid, resolverParams,KRomOnlyResolverUid, infoArray));

       REComSession::FinalClose();

       if(terr)

       {

           User::Leave(terr);

       }

       if(infoArray.Count() > 1)

       {

           User::Leave(KErrBadName);

       }

       TUid retUid = infoArray[0]->ImplementationUid();

       CleanupStack::PopAndDestroy(); //cleanup

       TAny* ptr = REComSession::CreateImplementationL( retUid, _FOFF(CDMEncryptionUtil, iDtor_ID_Key));

       CDMEncryptionUtil* self = reinterpret_cast<CDMEncryptionUtil*>( ptr );

       return self;

    }