// 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/cmtpsvcdeleteobject.cpp

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/cmtpobjectmetadata.h>

#include <mtp/mmtpobjectmgr.h>

#include "cmtpsvcdeleteobject.h"

#include "mtpdpconst.h"

#include "mmtpservicedataprovider.h"

#include "mmtpsvcobjecthandler.h"

// Class constants.

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

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

												MMTPConnection& aConnection, 

												MMTPServiceDataProvider& aDataProvider)

	{

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

	return self;

	}

EXPORT_C CMTPSvcDeleteObject::~CMTPSvcDeleteObject()

	{

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

	iObjectHandles.Close();

	delete iReceivedObjectMetaData;

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

	__FLOG_CLOSE;

	}

CMTPSvcDeleteObject::CMTPSvcDeleteObject(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection, MMTPServiceDataProvider& aDataProvider) :

	CMTPRequestProcessor(aFramework, aConnection, 0, NULL), iDataProvider(aDataProvider), iDeleteError(KErrNone)

	{

	__FLOG_OPEN(KMTPSubsystem, KComponent);

	__FLOG(_L8("CMTPSvcDeleteObject - Constructed"));

	}

/**

DeleteObject request handler

*/

void CMTPSvcDeleteObject::LoadAllObjHandlesL(TUint32 aParentHandle)

	{

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

	const TUint32 KFormatCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);

	RMTPObjectMgrQueryContext context;

	CleanupClosePushL(context);

	do

		{ // Append all object handles with service dp's storage id.

		TUint32 storageId = iDataProvider.StorageId();

		TMTPObjectMgrQueryParams  params(storageId, KFormatCode, aParentHandle);

		iFramework.ObjectMgr().GetObjectHandlesL(params, context, iObjectHandles);

		}

	while (!context.QueryComplete());

	CleanupStack::PopAndDestroy(&context);

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

	}

void CMTPSvcDeleteObject::ServiceL()

	{

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

	if (iFormatCode == EMTPFormatCodeAssociation)

		{

		// Framework may send deleteobject for a directory, allow framework do this.

		SendResponseL(EMTPRespCodeOK);

		return;

		}

	const TUint32 KHandle = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

	if (KHandle == KMTPHandleAll)

		{

		LoadAllObjHandlesL(KMTPHandleNoParent);

		iDeleteIndex = 0;

		iSuccessDeletion = EFalse;

		CompleteSelf(KErrNone);

		}

	else

		{

		TMTPResponseCode responseCode = iObjectHandler->DeleteObjectL(*iReceivedObjectMetaData);

		// Remove from framework.

		iFramework.ObjectMgr().RemoveObjectL(iReceivedObjectMetaData->DesC(CMTPObjectMetaData::ESuid));

		SendResponseL(responseCode);

		__FLOG_VA((_L8("Delete single object exit with response code = 0x%04X"), responseCode));

		}

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

	}

void CMTPSvcDeleteObject::RunL()

	{

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

	__FLOG_VA((_L8("the number of objects to be deleted is %d, iDeleteIndex is %d"), iObjectHandles.Count(), iDeleteIndex));

	if (iStatus != KErrNone)

		{

		iDeleteError = iStatus.Int();

		}

	CDesCArray* objectDeleted = new (ELeave) CDesCArrayFlat(KMTPDriveGranularity);

	CleanupStack::PushL(objectDeleted);

	TInt errCount = 0;

	TInt count = iObjectHandles.Count();

	const TUint32 granularity = iDataProvider.OperationGranularity();

	for (TInt i = 0; iDeleteIndex < count && i < granularity; ++i)

		{

		TUint handle = iObjectHandles[iDeleteIndex++];

		iFramework.ObjectMgr().ObjectL(handle, *iReceivedObjectMetaData);

		if (DeleteObjectL(*iReceivedObjectMetaData) == EMTPRespCodeOK)

			{

			objectDeleted->AppendL(iReceivedObjectMetaData->DesC(CMTPObjectMetaData::ESuid));

			iSuccessDeletion = ETrue;

			}

		else

			{

			++errCount;

			__FLOG_VA((_L8("Delete object failed, SUID:%S"), &(iReceivedObjectMetaData->DesC(CMTPObjectMetaData::ESuid))));

			}

		}

	// Remove object from framework

	iFramework.ObjectMgr().RemoveObjectsL(*objectDeleted);

	CleanupStack::PopAndDestroy(objectDeleted);

	if (iDeleteIndex >= count)

		{

		ProcessFinalPhaseL();

		}

	else 

		{

		TInt err = (errCount > 0) ? KErrGeneral : KErrNone;

		CompleteSelf(err);

		}

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

	}

/**

Handle an error in the delete loop by storing the error code and continuing deleting.

*/

TInt CMTPSvcDeleteObject::RunError(TInt aError)

	{

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

	CompleteSelf(aError);

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

	return KErrNone;

	}

/**

Complete myself

*/

void CMTPSvcDeleteObject::CompleteSelf(TInt aError)

	{

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

	SetActive();

	TRequestStatus* status = &iStatus;

	*status = KRequestPending;

	User::RequestComplete(status, aError);

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

	}

TMTPResponseCode CMTPSvcDeleteObject::CheckRequestL()

	{

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

	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();

	if (EMTPRespCodeOK == responseCode)

		{

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

		iReceivedObjectMetaData = CMTPObjectMetaData::NewL();

		// Check object handle with dataprovider id, if handle is valid, then ignore format code in parameter 2.

		if (objectHandle != KMTPHandleAll)

			{

			MMTPObjectMgr& objects = iFramework.ObjectMgr();

			//Check whether object handle is valid

			// Framework may send a handle which is a directory and dp can't check id in this case

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

				{

				iFormatCode = iReceivedObjectMetaData->Uint(CMTPObjectMetaData::EFormatCode);

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

					{

					responseCode = EMTPRespCodeInvalidObjectHandle;

					__FLOG(_L8("DataProviderId dismatch"));

					}

				else

					{

					responseCode = CheckFmtAndSetHandler(iFormatCode);

					}

				}

			else

				{

				responseCode = EMTPRespCodeInvalidObjectHandle;

				}

			}

		else

			{

			// Delete all objects for a format

			iFormatCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2);

			// Check format code

			if (iFormatCode != KMTPFormatsAll)

				{

				responseCode = CheckFmtAndSetHandler(iFormatCode);

				}

			}

		}

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

	return responseCode;

	}

void CMTPSvcDeleteObject::ProcessFinalPhaseL()

	{

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

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	if (iDeleteError != KErrNone)

		{

		if (iSuccessDeletion)

			{

			responseCode = EMTPRespCodePartialDeletion;

			}

		else

			{

			responseCode = EMTPRespCodeStoreReadOnly;

			}

		}

	SendResponseL(responseCode);

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

	}

TMTPResponseCode CMTPSvcDeleteObject::CheckFmtAndSetHandler(TUint32 aFormatCode)

	{

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

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	iObjectHandler = iDataProvider.ObjectHandler(aFormatCode);

	if (!iObjectHandler)

		{

		responseCode = EMTPRespCodeInvalidObjectFormatCode;

		}

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

	return responseCode;

	}

TMTPResponseCode CMTPSvcDeleteObject::DeleteObjectL(const CMTPObjectMetaData& aObjectMetaData)

	{

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

	TMTPResponseCode responseCode = EMTPRespCodeOK;

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

	responseCode = CheckFmtAndSetHandler(formatCode);

	if (EMTPRespCodeOK == responseCode)

		{

		responseCode = iObjectHandler->DeleteObjectL(aObjectMetaData);

		}

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

	return responseCode;

	}