syncmlfw/ds/hostserver/dshostserverbase/src/NsmldschangedItemsFetcher.cpp
changeset 0 b497e44ab2fc
child 54 085438c28042
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     1 /*
       
     2 * Copyright (c) 2005 Nokia Corporation and/or its subsidiary(-ies). 
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  array for storing dataproviders and datastores.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <s32mem.h>
       
    21 #include <nsmldebug.h>
       
    22 
       
    23 #include "nsmldshostconstants.h"
       
    24 #include "Nsmldsasyncrequesthandler.h"
       
    25 #include "Nsmldsdataproviderarray.h"
       
    26 
       
    27 #ifdef __HOST_SERVER_MTEST__
       
    28 #include "../../stif/DSHostServerTest/inc/fakedataprovider.h"
       
    29 #else
       
    30 #include <SmlDataProvider.h>
       
    31 #endif
       
    32 
       
    33 // CONSTANTS
       
    34 _LIT( KNSmlPanicCategory, " Host Server Session\\Changed items fetcher " );
       
    35 
       
    36 // ======================================= MEMBER FUNCTIONS =======================================
       
    37 
       
    38 // ------------------------------------------------------------------------------------------------
       
    39 // CNSmlDSChangedItemsFetcher::NewLC
       
    40 // ------------------------------------------------------------------------------------------------
       
    41 CNSmlDSChangedItemsFetcher* CNSmlDSChangedItemsFetcher::NewLC( CNSmlDSHostSession* aSession, 
       
    42         TNSmlDSDataStoreElement* aDSItem, 
       
    43         const RMessage2& aMessage,
       
    44         RequestFinishedFunction aReqFinishedFunc )
       
    45 	{
       
    46 	CNSmlDSChangedItemsFetcher* self = new ( ELeave ) CNSmlDSChangedItemsFetcher(
       
    47 		aSession, aDSItem, aMessage, aReqFinishedFunc );
       
    48 	CleanupStack::PushL( self );
       
    49 	self->ConstructL();
       
    50 	return self;
       
    51 	}
       
    52 
       
    53 // ------------------------------------------------------------------------------------------------
       
    54 // CNSmlDSChangedItemsFetcher::~CNSmlDSChangedItemsFetcher
       
    55 // ------------------------------------------------------------------------------------------------
       
    56 CNSmlDSChangedItemsFetcher::~CNSmlDSChangedItemsFetcher()
       
    57 	{
       
    58 	if (iChangedItems)
       
    59 		{		
       
    60 		iChangedItems->Close();
       
    61 		delete iChangedItems;
       
    62 		}
       
    63 	}
       
    64 
       
    65 // ------------------------------------------------------------------------------------------------
       
    66 // CNSmlDSChangedItemsFetcher::FetchAllChangedItemsL
       
    67 // ------------------------------------------------------------------------------------------------
       
    68 void CNSmlDSChangedItemsFetcher::FetchAllChangedItemsL()
       
    69 	{
       
    70 	AddToSchedulerL();
       
    71     SetActive();
       
    72     TRequestStatus* status = &iStatus;
       
    73     User::RequestComplete( status, KErrNone );
       
    74 	}
       
    75 	
       
    76 // ------------------------------------------------------------------------------------------------
       
    77 // CNSmlDSChangedItemsFetcher::CNSmlDSChangedItemsFetcher
       
    78 // ------------------------------------------------------------------------------------------------      
       
    79 CNSmlDSChangedItemsFetcher::CNSmlDSChangedItemsFetcher( CNSmlDSHostSession* aSession, 
       
    80         			TNSmlDSDataStoreElement* aDSItem, 
       
    81         			const RMessage2& aMessage,
       
    82         			RequestFinishedFunction aReqFinishedFunc ) :
       
    83 	CNSmlDSAsyncRequestHandler( EPriorityLow, aSession, aDSItem, aMessage ),  
       
    84 	iChangedItems( NULL )
       
    85 	{
       
    86 	iNextModsToFetch = TNSmlDbItemModification::ENSmlDbItemAdd;
       
    87 	iReqFinishedFunc = aReqFinishedFunc;
       
    88 	ASSERT( iReqFinishedFunc != NULL );
       
    89 	ASSERT( iDSItem != NULL );
       
    90     }
       
    91 
       
    92 // ------------------------------------------------------------------------------------------------
       
    93 // CNSmlDSChangedItemsFetcher::ConstructL
       
    94 // ------------------------------------------------------------------------------------------------
       
    95 void CNSmlDSChangedItemsFetcher::ConstructL()
       
    96 	{
       
    97 	iChangedItems = new ( ELeave ) RNSmlDbItemModificationSet();
       
    98 	}	
       
    99 
       
   100 // ------------------------------------------------------------------------------------------------
       
   101 // CNSmlDSChangedItemsFetcher::DoCancel
       
   102 // No need to do anything. Here to prevent base class DoCancel from getting called.
       
   103 // ------------------------------------------------------------------------------------------------
       
   104 void CNSmlDSChangedItemsFetcher::DoCancel()
       
   105 	{
       
   106 	
       
   107 	}
       
   108 
       
   109 // ------------------------------------------------------------------------------------------------
       
   110 // CNSmlDSChangedItemsFetcher::RunL
       
   111 // ------------------------------------------------------------------------------------------------
       
   112 void CNSmlDSChangedItemsFetcher::RunL()
       
   113 	{
       
   114 	CSmlDataStore* ds = iDSItem->iDataStore;
       
   115 	TBool fetchFinished( EFalse );
       
   116 	TNSmlDbItemModification::TNSmlDbItemModificationType 
       
   117 		toNextModsToFetch( TNSmlDbItemModification::ENSmlDbItemAdd );
       
   118 	const MSmlDataItemUidSet* dius = NULL;
       
   119 	
       
   120 	//Order of items must be preserved for hierarchy sync.
       
   121 	//1.Add, 2.Replace, 3.Move, 4.SoftDelete, 5.Delete.
       
   122 	switch( iNextModsToFetch )
       
   123 		{
       
   124 		case TNSmlDbItemModification::ENSmlDbItemAdd:
       
   125 			{		
       
   126 			dius = &ds->AddedItems();
       
   127 			toNextModsToFetch = TNSmlDbItemModification::ENSmlDbItemModify;
       
   128 			break;
       
   129 			}
       
   130 		case TNSmlDbItemModification::ENSmlDbItemDelete:
       
   131 			{
       
   132 			dius = &ds->DeletedItems();
       
   133 			fetchFinished = ETrue;
       
   134 			break;
       
   135 			}
       
   136 		case TNSmlDbItemModification::ENSmlDbItemSoftDelete:
       
   137 			{
       
   138 			dius = &ds->SoftDeletedItems();
       
   139 			toNextModsToFetch = TNSmlDbItemModification::ENSmlDbItemDelete;
       
   140 			break;
       
   141 			}
       
   142 		case TNSmlDbItemModification::ENSmlDbItemMove:
       
   143 			{
       
   144 			dius = &ds->MovedItems();
       
   145 			toNextModsToFetch = TNSmlDbItemModification::ENSmlDbItemSoftDelete;
       
   146 			break;
       
   147 			}
       
   148 		case TNSmlDbItemModification::ENSmlDbItemModify:
       
   149 			{
       
   150 			dius = &ds->ModifiedItems();
       
   151 			toNextModsToFetch = TNSmlDbItemModification::ENSmlDbItemMove;
       
   152 			break;
       
   153 			}
       
   154 		default:
       
   155 			User::Panic( KNSmlPanicCategory, KErrUnknown );
       
   156 		}
       
   157 		
       
   158 	TInt status = KErrNone;	
       
   159 	
       
   160 	if ( dius )
       
   161 		{
       
   162 		iChangedItems->AddGroupL( *dius, iNextModsToFetch );
       
   163 		}
       
   164 	
       
   165 	if ( fetchFinished )
       
   166 		{
       
   167 		TRAP( status, ( *iSession.*iReqFinishedFunc )( this ) );
       
   168 
       
   169 		iMessage.Complete( status );
       
   170 		delete this;
       
   171 		}
       
   172 	else
       
   173 		{
       
   174 		iNextModsToFetch = toNextModsToFetch;
       
   175 		SetActive();
       
   176 		TRequestStatus* rstatus = &iStatus;
       
   177     	User::RequestComplete( rstatus, KErrNone );
       
   178 		}
       
   179 	}
       
   180 	
       
   181 // End of File