// Copyright (c) 2006-2009 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/tmtptyperequest.h>

#include <mtp/mmtpdataproviderframework.h>

#include <mtp/mmtpobjectmgr.h>

#include <mtp/mmtpdataprovider.h>

#include <mtp/cmtpdataproviderplugin.h>

#include <mtp/cmtpobjectmetadata.h>

#include "cmtpdataprovidercontroller.h"

#include "cmtpdataprovider.h"

#include "cmtpdevicedatastore.h"

#include "cmtpdataprovidercontroller.h"

#include "cmtpgetnumobjects.h"

#include "mtpdevicedpconst.h"

#include "mtpdevdppanic.h"

// Class constants.

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

static const TInt KMTPGetObjectNumTimeOut(1);

/**

Verification data for GetNumObjects request

*/

const TMTPRequestElementInfo KMTPGetNumObjectsPolicy[] = 

    {

        {TMTPTypeRequest::ERequestParameter1, EMTPElementTypeStorageId, EMTPElementAttrNone, 1, KMTPStorageAll, 0},

        {TMTPTypeRequest::ERequestParameter2, EMTPElementTypeFormatCode, EMTPElementAttrNone, 1, 0, 0},

        {TMTPTypeRequest::ERequestParameter3, EMTPElementTypeObjectHandle, EMTPElementAttrDir, 2, KMTPHandleAll, 0}

    };

/**

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* CMTPGetNumObjects::NewL(MMTPDataProviderFramework& aFramework, MMTPConnection& aConnection)

	{

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

	CleanupStack::PushL(self);

	self->ConstructL();

	CleanupStack::Pop();

	return self;

	}

/**

Destructor

*/	

CMTPGetNumObjects::~CMTPGetNumObjects()

	{	

	iDevDpSingletons.Close();

    iSingletons.Close();

    __FLOG_CLOSE;

	}

/**

Standard c++ constructor

*/	

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

    CMTPRequestProcessor(aFramework, aConnection, sizeof(KMTPGetNumObjectsPolicy)/sizeof(TMTPRequestElementInfo), KMTPGetNumObjectsPolicy)

	{

	}

/**

Second phase constructor.

*/

void CMTPGetNumObjects::ConstructL()

    {

	__FLOG_OPEN(KMTPSubsystem, KComponent);

    iSingletons.OpenL();

    iDevDpSingletons.OpenL(iFramework);

    }

TMTPResponseCode CMTPGetNumObjects::CheckRequestL()

	{

	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();

	if(responseCode != EMTPRespCodeOK)

		{

		return responseCode;	

		}

	TUint32 formatCode = Request().Uint32(TMTPTypeRequest::ERequestParameter2); 

	if(formatCode != 0 && !IsSupportedFormatL(formatCode))

		{

		return EMTPRespCodeInvalidObjectFormatCode;

		}

	/*

	if(iSingletons.DpController().EnumerateState() != CMTPDataProviderController::EEnumeratedFulllyCompleted)

		{

		TUint handle = Request().Uint32(TMTPTypeRequest::ERequestParameter3);

		if(handle != KMTPHandleAll)

			{

			responseCode = EMTPRespCodeDeviceBusy;

			}

		}

		*/

	return responseCode;	

	}

/**

GetNumObjects request handler

*/	

void CMTPGetNumObjects::ServiceL()

	{

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

    __FLOG_VA((_L8("IsConnectMac = %d; ERequestParameter2 = %d" ), iDevDpSingletons.DeviceDataStore().IsConnectMac(), Request().Uint32(TMTPTypeRequest::ERequestParameter2)));

    if(iSingletons.DpController().EnumerateState() != CMTPDataProviderController::EEnumeratedFulllyCompleted)

        {

        TUint storageId = Request().Uint32(TMTPTypeRequest::ERequestParameter1);

        TUint handle = Request().Uint32(TMTPTypeRequest::ERequestParameter3);

        TUint enumerateState = iSingletons.DpController().StorageEnumerateState(storageId);

        if ( (enumerateState < CMTPDataProviderController::EEnumeratingPhaseOneDone)

            || (enumerateState != CMTPDataProviderController::EEnumeratedFulllyCompleted && handle != KMTPHandleAll))

            {

            if (iTimeoutCount++ >= KMTPGetObjectNumTimeOut)

                {

                __FLOG(_L8("Wait for enumeration time out, return busy."));

                SendResponseL(EMTPRespCodeDeviceBusy);

                iTimeoutCount = 0;

                return;

                }

            else

                {

                __FLOG(_L8("Enumeration not completed, suspend request."));

                RegisterPendingRequest(20);

                return; 

                }

            }

        }

    iTimeoutCount = 0;

	if(iDevDpSingletons.DeviceDataStore().IsConnectMac()

        &&(KMTPFormatsAll == Request().Uint32(TMTPTypeRequest::ERequestParameter2)))

        {

        __FLOG_VA((_L8("ConnectMac and Fetch all, total count = %d"), count));        

    	SendResponseL(EMTPRespCodeOK, 1, &count); 

        }

    else

        {       

    	TMTPObjectMgrQueryParams params(Request().Uint32(TMTPTypeRequest::ERequestParameter1), Request().Uint32(TMTPTypeRequest::ERequestParameter2), Request().Uint32(TMTPTypeRequest::ERequestParameter3));

    	TUint32 count = iFramework.ObjectMgr().CountL(params);	

        __FLOG_VA((_L8("NOT ConnectMac or NOT Fetch all, total count = %d"), count));         

    	SendResponseL(EMTPRespCodeOK, 1, &count);

        }

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

	}

/**

Check if the format code is supported by the current installed data providers

*/	

TBool CMTPGetNumObjects::IsSupportedFormatL(TUint32 aFormatCode)

	{

	TBool supported(EFalse);

	CMTPDataProviderController& dps(iSingletons.DpController());

	const TInt count(dps.Count());

	for (TInt i(0); ((i < count) && (!supported)); i++)

		{						

		CMTPDataProvider& dp = dps.DataProviderByIndexL(i);

		if (dp.DataProviderId() != dps.ProxyDpId())

			{

			supported = (

			    dp.Supported(EObjectCaptureFormats, aFormatCode) || 

			    dp.Supported(EObjectPlaybackFormats, aFormatCode));

			}			

		}

	return supported;	

	}