// 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"

#include "OstTraceDefinitions.h"

#ifdef OST_TRACE_COMPILER_IN_USE

#include "cmtpsvcdeleteobjectTraces.h"

#endif

// Class constants.

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()

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_CMTPSVCDELETEOBJECT_DES_ENTRY );

	iObjectHandles.Close();

	delete iReceivedObjectMetaData;

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_CMTPSVCDELETEOBJECT_DES_EXIT );

	}

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

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

	{

	OstTrace0( TRACE_NORMAL, CMTPSVCDELETEOBJECT_CMTPSVCDELETEOBJECT, "CMTPSvcDeleteObject - Constructed" );

	}

/**

DeleteObject request handler

*/

void CMTPSvcDeleteObject::LoadAllObjHandlesL(TUint32 aParentHandle)

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_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);

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_LOADALLOBJHANDLESL_EXIT );

	}

void CMTPSvcDeleteObject::ServiceL()

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_SERVICEL_ENTRY );

	if (iFormatCode == EMTPFormatCodeAssociation)

		{

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

		SendResponseL(EMTPRespCodeOK);

		OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_SERVICEL_EXIT );

		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);

		OstTrace1( TRACE_NORMAL, CMTPSVCDELETEOBJECT_SERVICEL, 

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

		}

	OstTraceFunctionExit0( DUP1_CMTPSVCDELETEOBJECT_SERVICEL_EXIT );

	}

void CMTPSvcDeleteObject::RunL()

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_RUNL_ENTRY );

	OstTraceExt2( TRACE_NORMAL, CMTPSVCDELETEOBJECT_RUNL, 

	        "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;

			OstTraceExt1( TRACE_NORMAL, DUP1_CMTPSVCDELETEOBJECT_RUNL, 

			        "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);

		}

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_RUNL_EXIT );

	}

/**

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

*/

TInt CMTPSvcDeleteObject::RunError(TInt aError)

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_RUNERROR_ENTRY );

	CompleteSelf(aError);

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_RUNERROR_EXIT );

	return KErrNone;

	}

/**

Complete myself

*/

void CMTPSvcDeleteObject::CompleteSelf(TInt aError)

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_COMPLETESELF_ENTRY );

	SetActive();

	TRequestStatus* status = &iStatus;

	*status = KRequestPending;

	User::RequestComplete(status, aError);

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_COMPLETESELF_EXIT );

	}

TMTPResponseCode CMTPSvcDeleteObject::CheckRequestL()

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_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;

					OstTrace0( TRACE_WARNING, DUP1_CMTPSVCDELETEOBJECT_CHECKREQUESTL, "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);

				}

			}

		}

	OstTrace1( TRACE_NORMAL, CMTPSVCDELETEOBJECT_CHECKREQUESTL, "Exit with response code = 0x%04X", responseCode );

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_CHECKREQUESTL_EXIT );

	return responseCode;

	}

void CMTPSvcDeleteObject::ProcessFinalPhaseL()

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_PROCESSFINALPHASEL_ENTRY );

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	if (iDeleteError != KErrNone)

		{

		if (iSuccessDeletion)

			{

			responseCode = EMTPRespCodePartialDeletion;

			}

		else

			{

			responseCode = EMTPRespCodeStoreReadOnly;

			}

		}

	SendResponseL(responseCode);

	OstTrace1( TRACE_NORMAL, CMTPSVCDELETEOBJECT_PROCESSFINALPHASEL, "Exit with response code = 0x%04X", responseCode );

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_PROCESSFINALPHASEL_EXIT );

	}

TMTPResponseCode CMTPSvcDeleteObject::CheckFmtAndSetHandler(TUint32 aFormatCode)

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_CHECKFMTANDSETHANDLER_ENTRY );

	TMTPResponseCode responseCode = EMTPRespCodeOK;

	iObjectHandler = iDataProvider.ObjectHandler(aFormatCode);

	if (!iObjectHandler)

		{

		responseCode = EMTPRespCodeInvalidObjectFormatCode;

		}

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_CHECKFMTANDSETHANDLER_EXIT );

	return responseCode;

	}

TMTPResponseCode CMTPSvcDeleteObject::DeleteObjectL(const CMTPObjectMetaData& aObjectMetaData)

	{

	OstTraceFunctionEntry0( CMTPSVCDELETEOBJECT_DELETEOBJECTL_ENTRY );

	TMTPResponseCode responseCode = EMTPRespCodeOK;

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

	responseCode = CheckFmtAndSetHandler(formatCode);

	if (EMTPRespCodeOK == responseCode)

		{

		responseCode = iObjectHandler->DeleteObjectL(aObjectMetaData);

		}

	OstTraceFunctionExit0( CMTPSVCDELETEOBJECT_DELETEOBJECTL_EXIT );

	return responseCode;

	}