// Copyright (c) 2008-2009 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:

// mw/remoteconn/mtpfws/mtpfw/dataproviders/dputility/src/cmtpsvcdeleteobjectproplist.cpp

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/mmtpobjectmgr.h>

#include <mtp/cmtpobjectmetadata.h>

#include <mtp/cmtptypedeleteobjectproplist.h>

#include <mtp/tmtptypedatapair.h>

#include "cmtpsvcdeleteobjectproplist.h"

#include "mmtpservicedataprovider.h"

#include "mmtpsvcobjecthandler.h"

// Class constants.

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

EXPORT_C MMTPRequestProcessor* CMTPSvcDeleteObjectPropList::NewL(MMTPDataProviderFramework& aFramework, 

													MMTPConnection& aConnection, 

													MMTPServiceDataProvider& aDataProvider)

	{

	CMTPSvcDeleteObjectPropList* self = new (ELeave) CMTPSvcDeleteObjectPropList(aFramework, aConnection, aDataProvider);

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop(self);

	return self;

	}

EXPORT_C CMTPSvcDeleteObjectPropList::~CMTPSvcDeleteObjectPropList()

	{

	__FLOG(_L8("~CMTPSvcDeleteObjectPropList - Entry"));

	delete iPropertyList;

	delete iReceivedObjectMetaData;

	__FLOG(_L8("~CMTPSvcDeleteObjectPropList - Exit"));

	__FLOG_CLOSE;

	}

CMTPSvcDeleteObjectPropList::CMTPSvcDeleteObjectPropList(MMTPDataProviderFramework& aFramework, 

												MMTPConnection& aConnection, 

												MMTPServiceDataProvider& aDataProvider) :

	CMTPRequestProcessor(aFramework, aConnection, 0, NULL),

	iDataProvider(aDataProvider)

	{

	}

void CMTPSvcDeleteObjectPropList::ConstructL()

	{

	__FLOG_OPEN(KMTPSubsystem, KComponent);

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

	iPropertyList = CMTPTypeDeleteObjectPropList::NewL();

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

	}

TMTPResponseCode CMTPSvcDeleteObjectPropList::CheckRequestL()

	{

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

	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();

	if (EMTPRespCodeOK == responseCode)

		{

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

		iReceivedObjectMetaData = CMTPObjectMetaData::NewL();

		// Check object handle

		if (objectHandle != KMTPHandleAll)

			{

			MMTPObjectMgr& objMgr(iFramework.ObjectMgr());

			// Check whether object handle is valid

			if (objMgr.ObjectL(objectHandle, *iReceivedObjectMetaData))

				{

				// Check whether the owner of this object is correct service data provider

				if (iReceivedObjectMetaData->Uint(CMTPObjectMetaData::EDataProviderId) != iFramework.DataProviderId())

					{

					responseCode = EMTPRespCodeInvalidObjectHandle;

					__FLOG(_L8("CheckRequestL - DataProviderId dismatch"));

					}

				else

					{

					// Check format code

					TUint16 formatCode = iReceivedObjectMetaData->Uint(CMTPObjectMetaData::EFormatCode);

					if (!iDataProvider.ObjectHandler(formatCode))

						{

						responseCode = EMTPRespCodeInvalidObjectHandle;

						}

					}

				}

			else

				{

				responseCode = EMTPRespCodeInvalidObjectHandle;

				}

			}

		else

			{

			iReceivedObjectMetaData->SetUint(CMTPObjectMetaData::EHandle, KMTPHandleAll);

			}

		}

	__FLOG_VA((_L8("CheckRequestL - Exit with responseCode = 0x%04X"), responseCode));

	return responseCode;

	}

void CMTPSvcDeleteObjectPropList::ServiceL()

	{

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

	ReceiveDataL(*iPropertyList);

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

	}

TBool CMTPSvcDeleteObjectPropList::DoHandleResponsePhaseL()

	{

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

	TUint32 parameter(0);

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	responseCode = DeleteObjectPropListL(*iReceivedObjectMetaData, *iPropertyList, parameter);

	SendResponseL(responseCode, 1, &parameter);

	__FLOG_VA((_L8("DeleteObjectPropListL responseCode = 0x%x, failed index = %u"), responseCode, parameter));

	return EFalse;

	}

TBool CMTPSvcDeleteObjectPropList::HasDataphase() const

	{

	return ETrue;

	}

TMTPResponseCode CMTPSvcDeleteObjectPropList::DeleteObjectPropListL(CMTPObjectMetaData& aObjectMetaData, 

														const CMTPTypeDeleteObjectPropList& aPropList, 

														TUint32& aParameter)

	{

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

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	TUint handle = aObjectMetaData.Uint(CMTPObjectMetaData::EHandle);

	MMTPSvcObjectHandler* lastHandler = NULL; 

	TUint errIndex = 0;

	if (handle == KMTPHandleAll)

		{

		TUint32 lastHandle = 0;

		// In this case, all object handles specified in the dataset, can be multiple objects

		const TUint count(aPropList.NumberOfElements());

		CMTPObjectMetaData* objectMetaData = CMTPObjectMetaData::NewL();

		CleanupStack::PushL(objectMetaData);

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

			{

			TMTPTypeDataPair& element = aPropList.ElementL(i);

			TUint32 handle = element.Uint32(TMTPTypeDataPair::EOwnerHandle);

			// Get object handle every time for multiple objects.

			if (iFramework.ObjectMgr().ObjectL(handle, *objectMetaData))

				{

				TUint16 formatCode = objectMetaData->Uint(CMTPObjectMetaData::EFormatCode);

				TUint16 propCode = element.Uint16(TMTPTypeDataPair::EDataCode);

				MMTPSvcObjectHandler* pHandler = iDataProvider.ObjectHandler(formatCode);

				if (pHandler)

					{

					// If the handler is not the last handle, need commit all properties now

					if (lastHandle != 0 && lastHandler && lastHandle != handle)

						{

						// Performance can be improved here

						TRAPD(err, lastHandler->CommitL());

						if (KErrNone != err)

							{

							lastHandler->RollBack();

							responseCode = EMTPRespCodeInvalidObjectHandle;

							aParameter = errIndex;

							break;

							}

						// Record the next segment's first index number

						errIndex = i;

						}

					lastHandler = pHandler;

					lastHandle = handle;

					responseCode = pHandler->DeleteObjectPropertyL(*objectMetaData, propCode);

					}

				else

					{

					responseCode = EMTPRespCodeInvalidObjectHandle;

					}

				}

			else

				{

				responseCode = EMTPRespCodeInvalidObjectHandle;

				}

			if (responseCode != EMTPRespCodeOK)

				{

				aParameter = i;

				// All properties prior to the failed property will be updated.

				if (i != errIndex && lastHandler)

					{

					TRAPD(err, lastHandler->CommitL());

					if (KErrNone != err)

						{

						lastHandler->RollBack();

						aParameter = errIndex;

						}

					}

				break;

				}

			}

		CleanupStack::PopAndDestroy(objectMetaData);

		}

	else 

		{

		// The element object handle fields should be either 0x00000000 or match with parameter 1. 

		TUint16 formatCode = aObjectMetaData.Uint(CMTPObjectMetaData::EFormatCode);

		const TUint count(aPropList.NumberOfElements());

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

			{

			TMTPTypeDataPair& element = aPropList.ElementL(i);

			TUint32 handle = element.Uint32(TMTPTypeDataPair::EOwnerHandle);	

			// Check dataset according to spec

			if (handle != aObjectMetaData.Uint(CMTPObjectMetaData::EHandle) && handle != KMTPHandleNone)

				{

				responseCode = EMTPRespCodeInvalidObjectHandle;

				}

			else

				{

				TUint16 propCode = element.Uint16(TMTPTypeDataPair::EDataCode);

				MMTPSvcObjectHandler* pHandler = iDataProvider.ObjectHandler(formatCode);

				if (pHandler)

					{

					responseCode = pHandler->DeleteObjectPropertyL(aObjectMetaData, propCode);

					if (!lastHandler)

						{

						lastHandler = pHandler;

						}

					}

				else

					{

					responseCode = EMTPRespCodeInvalidObjectHandle;

					}

				}

			if (responseCode != EMTPRespCodeOK)

				{

				aParameter = i;

				if (i != 0 && lastHandler)

					{

					TRAPD(err, lastHandler->CommitL());

					if (KErrNone != err)

						{

						lastHandler->RollBack();

						aParameter = errIndex;

						}

					}

				break;

				}

			}

		}

	// Commint for each case

	if (responseCode == EMTPRespCodeOK && lastHandler)

		{

		TRAPD(err, lastHandler->CommitL());

		if (KErrNone != err)

			{

			lastHandler->RollBack();

			responseCode = EMTPRespCodeInvalidObjectHandle;

			aParameter = errIndex;

			}

		}

	__FLOG_VA((_L8("DeleteObjectPropList - Exit with responseCode = 0x%04X"), responseCode));

	return responseCode;

	}