1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

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

    15 

    16 #include <mtp/mmtpdataproviderframework.h>

    17 #include <mtp/mmtpobjectmgr.h>

    18 #include <mtp/cmtpobjectmetadata.h>

    19 #include <mtp/cmtptypedeleteobjectproplist.h>

    20 #include <mtp/tmtptypedatapair.h>

    21 

    22 #include "cmtpsvcdeleteobjectproplist.h"

    23 #include "mmtpservicedataprovider.h"

    24 #include "mmtpsvcobjecthandler.h"

    25 

    26 // Class constants.

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

    28 

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

    30 													MMTPConnection& aConnection, 

    31 													MMTPServiceDataProvider& aDataProvider)

    32 	{

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

    34 	CleanupStack::PushL(self);

    35 	self->ConstructL();

    36 	CleanupStack::Pop(self);

    37 	return self;

    38 	}

    39 

    40 EXPORT_C CMTPSvcDeleteObjectPropList::~CMTPSvcDeleteObjectPropList()

    41 	{

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

    43 	delete iPropertyList;

    44 	delete iReceivedObjectMetaData;

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

    46 	__FLOG_CLOSE;

    47 	}

    48 

    49 CMTPSvcDeleteObjectPropList::CMTPSvcDeleteObjectPropList(MMTPDataProviderFramework& aFramework, 

    50 												MMTPConnection& aConnection, 

    51 												MMTPServiceDataProvider& aDataProvider) :

    52 	CMTPRequestProcessor(aFramework, aConnection, 0, NULL),

    53 	iDataProvider(aDataProvider)

    54 	{

    55 	}

    56 

    57 void CMTPSvcDeleteObjectPropList::ConstructL()

    58 	{

    59 	__FLOG_OPEN(KMTPSubsystem, KComponent);

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

    61 	iPropertyList = CMTPTypeDeleteObjectPropList::NewL();

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

    63 	}

    64 

    65 TMTPResponseCode CMTPSvcDeleteObjectPropList::CheckRequestL()

    66 	{

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

    68 	TMTPResponseCode responseCode = CMTPRequestProcessor::CheckRequestL();

    69 	if (EMTPRespCodeOK == responseCode)

    70 		{

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

    72 		iReceivedObjectMetaData = CMTPObjectMetaData::NewL();

    73 		// Check object handle

    74 		if (objectHandle != KMTPHandleAll)

    75 			{

    76 			MMTPObjectMgr& objMgr(iFramework.ObjectMgr());

    77 			// Check whether object handle is valid

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

    79 				{

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

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

    82 					{

    83 					responseCode = EMTPRespCodeInvalidObjectHandle;

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

    85 					}

    86 				else

    87 					{

    88 					// Check format code

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

    90 					if (!iDataProvider.ObjectHandler(formatCode))

    91 						{

    92 						responseCode = EMTPRespCodeInvalidObjectHandle;

    93 						}

    94 					}

    95 				}

    96 			else

    97 				{

    98 				responseCode = EMTPRespCodeInvalidObjectHandle;

    99 				}

   100 			}

   101 		else

   102 			{

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

   104 			}

   105 		}

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

   107 	return responseCode;

   108 	}

   109 

   110 void CMTPSvcDeleteObjectPropList::ServiceL()

   111 	{

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

   113 	ReceiveDataL(*iPropertyList);

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

   115 	}

   116 

   117 TBool CMTPSvcDeleteObjectPropList::DoHandleResponsePhaseL()

   118 	{

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

   120 	TUint32 parameter(0);

   121 	TMTPResponseCode responseCode = EMTPRespCodeOK;

   122 

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

   124 	

   125 	SendResponseL(responseCode, 1, &parameter);

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

   127 	return EFalse;

   128 	}

   129 

   130 TBool CMTPSvcDeleteObjectPropList::HasDataphase() const

   131 	{

   132 	return ETrue;

   133 	}

   134 

   135 TMTPResponseCode CMTPSvcDeleteObjectPropList::DeleteObjectPropListL(CMTPObjectMetaData& aObjectMetaData, 

   136 														const CMTPTypeDeleteObjectPropList& aPropList, 

   137 														TUint32& aParameter)

   138 	{

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

   140 	TMTPResponseCode responseCode = EMTPRespCodeOK;

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

   142 	MMTPSvcObjectHandler* lastHandler = NULL; 

   143 	TUint errIndex = 0;

   144 	

   145 	if (handle == KMTPHandleAll)

   146 		{

   147 		TUint32 lastHandle = 0;

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

   149 		const TUint count(aPropList.NumberOfElements());

   150 		CMTPObjectMetaData* objectMetaData = CMTPObjectMetaData::NewL();

   151 		CleanupStack::PushL(objectMetaData);

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

   153 			{

   154 			TMTPTypeDataPair& element = aPropList.ElementL(i);

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

   156 			// Get object handle every time for multiple objects.

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

   158 				{

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

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

   161 				MMTPSvcObjectHandler* pHandler = iDataProvider.ObjectHandler(formatCode);

   162 				if (pHandler)

   163 					{

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

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

   166 						{

   167 						// Performance can be improved here

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

   169 						if (KErrNone != err)

   170 							{

   171 							lastHandler->RollBack();

   172 							responseCode = EMTPRespCodeInvalidObjectHandle;

   173 							aParameter = errIndex;

   174 							break;

   175 							}

   176 						// Record the next segment's first index number

   177 						errIndex = i;

   178 						}

   179 					lastHandler = pHandler;

   180 					lastHandle = handle;

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

   182 					}

   183 				else

   184 					{

   185 					responseCode = EMTPRespCodeInvalidObjectHandle;

   186 					}

   187 				}

   188 			else

   189 				{

   190 				responseCode = EMTPRespCodeInvalidObjectHandle;

   191 				}

   192 			if (responseCode != EMTPRespCodeOK)

   193 				{

   194 				aParameter = i;

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

   196 				if (i != errIndex && lastHandler)

   197 					{

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

   199 					if (KErrNone != err)

   200 						{

   201 						lastHandler->RollBack();

   202 						aParameter = errIndex;

   203 						}

   204 					}

   205 				break;

   206 				}

   207 			}

   208 		CleanupStack::PopAndDestroy(objectMetaData);

   209 		}

   210 	else 

   211 		{

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

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

   214 		const TUint count(aPropList.NumberOfElements());

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

   216 			{

   217 			TMTPTypeDataPair& element = aPropList.ElementL(i);

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

   219 			// Check dataset according to spec

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

   221 				{

   222 				responseCode = EMTPRespCodeInvalidObjectHandle;

   223 				}

   224 			else

   225 				{

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

   227 				MMTPSvcObjectHandler* pHandler = iDataProvider.ObjectHandler(formatCode);

   228 				if (pHandler)

   229 					{

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

   231 					if (!lastHandler)

   232 						{

   233 						lastHandler = pHandler;

   234 						}

   235 					}

   236 				else

   237 					{

   238 					responseCode = EMTPRespCodeInvalidObjectHandle;

   239 					}

   240 				}

   241 			if (responseCode != EMTPRespCodeOK)

   242 				{

   243 				aParameter = i;

   244 				if (i != 0 && lastHandler)

   245 					{

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

   247 					if (KErrNone != err)

   248 						{

   249 						lastHandler->RollBack();

   250 						aParameter = errIndex;

   251 						}

   252 					}

   253 				break;

   254 				}

   255 			}

   256 		}

   257 	// Commint for each case

   258 	if (responseCode == EMTPRespCodeOK && lastHandler)

   259 		{

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

   261 		if (KErrNone != err)

   262 			{

   263 			lastHandler->RollBack();

   264 			responseCode = EMTPRespCodeInvalidObjectHandle;

   265 			aParameter = errIndex;

   266 			}

   267 		}

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

   269 	return responseCode;

   270 	}