// 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:

//

#include <mtp/cmtptypearray.h>

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/tmtptyperequest.h>

#include <mtp/cmtpobjectmetadata.h>

#include <mtp/mmtpreferencemgr.h>

#include <mtp/mmtpobjectmgr.h>

#include "cmtpimagedpsetobjectreferences.h"

#include "mtpimagedputilits.h"

#include "cmtpimagedp.h"

/**

Two-phase construction method

@param aPlugin The data provider plugin

@param aFramework The data provider framework

@param aConnection The connection from which the request comes

@return a pointer to the created request processor object

*/    

MMTPRequestProcessor* CMTPImageDpSetObjectReferences::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection, CMTPImageDataProvider& /*aDataProvider*/)

    {

    CMTPImageDpSetObjectReferences* self = new (ELeave) CMTPImageDpSetObjectReferences(aFramework, aConnection);

    CleanupStack::PushL(self);

    self->ConstructL();

    CleanupStack::Pop(self);    

    return self;

    }

/**

Destructor

*/    

CMTPImageDpSetObjectReferences::~CMTPImageDpSetObjectReferences()

    {

    delete iReferences;

    }

/**

Standard c++ constructor

*/    

CMTPImageDpSetObjectReferences::CMTPImageDpSetObjectReferences(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)

    :CMTPRequestProcessor(aFramework, aConnection, 0, NULL)

    {

    }

/**

Second phase constructor

*/

void CMTPImageDpSetObjectReferences::ConstructL()

    {

    }

TMTPResponseCode CMTPImageDpSetObjectReferences::CheckRequestL()

    {

    TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

    CMTPObjectMetaData* objectInfo = CMTPObjectMetaData::NewLC();    

    TMTPResponseCode responseCode = MTPImageDpUtilits::VerifyObjectHandleL(iFramework, objectHandle, *objectInfo);      

    CleanupStack::PopAndDestroy(objectInfo);

    return responseCode;

    }

/**

Apply the references to the specified object

@return EFalse

*/    

TBool CMTPImageDpSetObjectReferences::DoHandleResponsePhaseL()

    {

    if(!VerifyReferenceHandlesL())

        {

        SendResponseL(EMTPRespCodeInvalidObjectReference);

        }

    else

        {

        MMTPReferenceMgr& referenceMgr = iFramework.ReferenceMgr();

        TUint32 objectHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

        referenceMgr.SetReferencesL(TMTPTypeUint32(objectHandle), *iReferences);

        SendResponseL(EMTPRespCodeOK);

        }

    return EFalse;    

    }

/**

GetReferences request handler

*/    

void CMTPImageDpSetObjectReferences::ServiceL()

    {

    delete iReferences;

    iReferences = NULL;

    iReferences = CMTPTypeArray::NewL(EMTPTypeAUINT32);

    ReceiveDataL(*iReferences);

    }

TBool CMTPImageDpSetObjectReferences::HasDataphase() const

    {

    return ETrue;

    }

/**

Verify if the references are valid handles to objects

@return ETrue if all the references are good, otherwise, EFalse

*/    

TBool CMTPImageDpSetObjectReferences::VerifyReferenceHandlesL() const

    {

    __ASSERT_DEBUG(iReferences, User::Invariant());

    TBool result = ETrue;

    TInt count = iReferences->NumElements();

    CMTPObjectMetaData* object(CMTPObjectMetaData::NewLC());

    MMTPObjectMgr& objectMgr = iFramework.ObjectMgr();

    TMTPTypeUint32 handle;

    for(TInt i = 0; i < count; i++)

        {

        iReferences->ElementL(i, handle);

        if(!objectMgr.ObjectL(handle, *object))

            {

            result = EFalse;

            break;

            }

        }

    CleanupStack::PopAndDestroy(object);

    return result; 

    }