contentpublishingsrv/contentpublishingserver/cpserver/inc/cpserverdatamanager.h
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     1 /*
       
     2 * Copyright (c) 2008 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:  Used by sessions for handling data related requests
       
    15  *
       
    16 */
       
    17 
       
    18 
       
    19 #ifndef C_CPDATA_MANAGER_H
       
    20 #define C_CPDATA_MANAGER_H
       
    21 
       
    22 #include <e32base.h>
       
    23 #include "cpstorage.h"
       
    24 
       
    25 // FORWARD DECLARATIONS
       
    26 #ifdef CONTENT_PUBLISHER_DEBUG
       
    27 class CCPDebug;
       
    28 #endif
       
    29 class CLiwMap;
       
    30 class CCPLiwMap;
       
    31 class CCpStorage;
       
    32 class CCPServerSession;
       
    33 class CCPNotificationHandler;
       
    34 class TLiwVariant;
       
    35 
       
    36 /**
       
    37  *  Content publisher data manager.
       
    38  *
       
    39  *  Used to add, modify and remove data and actions.
       
    40  *  @since S60 v5.0
       
    41  */
       
    42 class CCPDataManager : public CBase, MCPChangeNotifier
       
    43     {
       
    44 public:
       
    45     // exported
       
    46 
       
    47     /**
       
    48      * C++ destructor
       
    49      */
       
    50     ~CCPDataManager();
       
    51 
       
    52     /**
       
    53      * Two-phased constructor.
       
    54      */
       
    55     static CCPDataManager* NewL( TBool aTBool = EFalse );
       
    56 
       
    57     /**
       
    58      * Two-phased constructor.
       
    59      */
       
    60     static CCPDataManager* NewLC( TBool aTBool = EFalse );
       
    61 
       
    62     /**
       
    63      * Add a new data to database
       
    64      *
       
    65      * @param aData Data to be added.
       
    66      * @return Id of a newly created data item
       
    67      */
       
    68     TUint AddDataL( CCPLiwMap& aMap );
       
    69 
       
    70     /**
       
    71      * Data is not added to database. Only notification is send to observers.
       
    72      *
       
    73      * @param aData Data to be added.
       
    74      * @return Id of a newly created data item
       
    75      */
       
    76     void AddNonPersistentDataL( const CCPLiwMap* aMap );
       
    77 
       
    78     /**
       
    79      * Fetches data from database
       
    80      * @param aInParamList filter and sorting criteria
       
    81      * @param aOutParamList results
       
    82      */
       
    83     void GetListL( const CCPLiwMap& aMa, CLiwGenericParamList& aOutParamList );
       
    84     /**
       
    85      * Fetches action from database
       
    86      * @param aInParamList filter and sorting criteria
       
    87      * @param aOutParamList results
       
    88      * @param aNotificationList change info list (for notifications)
       
    89      * @return KErrNotFound if data was not found
       
    90      */
       
    91     TInt GetActionL( const CCPLiwMap& aMa,
       
    92         CLiwGenericParamList& aOutParamList, 
       
    93         CLiwDefaultList* aNotificationList = NULL );
       
    94 
       
    95     /**
       
    96      * Fetches all activated publishers 
       
    97      * @param aInParamList filter and sorting criteria
       
    98      * @param aOutParamList results
       
    99      */
       
   100     void GetActivePublishersL( CLiwGenericParamList* aResultList );
       
   101 
       
   102     /**
       
   103      * Removes data from database
       
   104      * @param aInParamList filter criteria
       
   105      */
       
   106     void RemoveDataL( const CCPLiwMap& aMa );
       
   107 
       
   108     /**
       
   109      * Adds observer to database
       
   110      * @param new observer
       
   111      */
       
   112     void AddObserverL( CCPNotificationHandler* aNotificationHandler );
       
   113 
       
   114     /**
       
   115      * Removes observer from database
       
   116      * @param aNotificationHandler observer to remove
       
   117      */
       
   118     void RemoveObserver( CCPNotificationHandler* aNotificationHandler );
       
   119 
       
   120     // from MCPChangeNotifier
       
   121     /**
       
   122      * @param Map containing change information
       
   123      * @return 
       
   124      */
       
   125     void HandleChangeL( CLiwDefaultList* aListOfMaps );
       
   126 
       
   127     /**
       
   128      * Close database 
       
   129      * @return 
       
   130      */
       
   131     void CloseDatabase();
       
   132     /**
       
   133      * Open database 
       
   134      * @return 
       
   135      */
       
   136     void OpenDatabaseL();
       
   137 
       
   138 private:
       
   139     // methods
       
   140 
       
   141     /**
       
   142      * Standard C++ constructor.
       
   143      */
       
   144     CCPDataManager();
       
   145 
       
   146     /**
       
   147      * Standard 2nd phase constructor.
       
   148      */
       
   149     void ConstructL( TBool aTBool );
       
   150 
       
   151     /**
       
   152      * Fetches action bound to provided trigger.
       
   153      *
       
   154      * @param aOutParamList of all actions
       
   155      * @param aMap for found action
       
   156      * @param aTrigger
       
   157      */
       
   158     void ExtractTriggerL( CLiwGenericParamList& aOutParamList,
       
   159         const CLiwDefaultMap* aMap, const TDesC8& aTrigger );
       
   160     /**
       
   161      * Sends notifications to observers stored in iNotificationsArray
       
   162      *
       
   163      * @param List of change information
       
   164      * @param index od data item
       
   165      */
       
   166     void SendNotificationL( CLiwDefaultList* aListOfMaps, TInt aIndex );
       
   167 
       
   168     /**
       
   169      * Exctracts action from input parameters
       
   170      *
       
   171      * @param aParam for data
       
   172      * @param aAction for action
       
   173      */
       
   174     void ExtractActionL( const TLiwGenericParam* aParam, RBuf8& aAction );
       
   175     
       
   176     /**
       
   177      * Fills aOutParamList with parameters for action.
       
   178      *
       
   179      * @param aOutParamList parsed list of items
       
   180      * @param aParamList list of items from data base
       
   181      * @param aActionTrigger action trigger
       
   182      */
       
   183     void FillActionParamListL(
       
   184     		CLiwGenericParamList & aOutParamList, 
       
   185     		const TLiwGenericParam* aParam,
       
   186 			RBuf8 & aActionTrigger);
       
   187 
       
   188      /**
       
   189      * Creates map for GetList request - publisher, content_type
       
   190      * and content_id are copied from aMap to returned map
       
   191      * @param aMap - input map
       
   192      * @return input map for GetList request
       
   193      */
       
   194     CCPLiwMap* CreateMapForGetlistLC( const CCPLiwMap& aMap );
       
   195 
       
   196 
       
   197      /**
       
   198      * Gets Flag for specified item from DB and returns activate
       
   199      * info
       
   200      * @param aMap - input map
       
   201      * @return activate flag
       
   202      */
       
   203     TBool GetActivateInfoL( const CCPLiwMap* aMap );
       
   204     
       
   205     /**
       
   206     * Builds change info list based on query result to database
       
   207     * @param aMap - map containing parameters needed to build change info list
       
   208     * @param aParam - param from getlist result 
       
   209     * @param aChangeInfoList - output list containing change info list sent
       
   210     * as notification
       
   211     */
       
   212     void BuildChangeInfoL( 
       
   213     		const CCPLiwMap* aMap, 
       
   214     		const TLiwGenericParam* aParam,	
       
   215     		CLiwDefaultList* aChangeInfoList );
       
   216     /**
       
   217     * Builds change info list when query to database returned nothing
       
   218     * @param aMap - map containing parameters needed to build change info list
       
   219     * @param aChangeInfoList - output list containing change info list sent
       
   220     * as notification
       
   221     */
       
   222     void BuildDefaultChangeInfoL( 
       
   223     		const CCPLiwMap* aMap, 
       
   224     		CLiwDefaultList* aChangeInfoList );
       
   225     /**
       
   226     * Builds change info list when query to database returned nothing
       
   227     * @param aMap - map containing parameters needed to build change info list
       
   228     * @param aChangeInfoList - output list containing change info list sent
       
   229     * as notification
       
   230     */
       
   231     void BuildChangeInfoForAddL(
       
   232             const CCPLiwMap* aMap,
       
   233             CLiwDefaultList* aChangeInfoList );
       
   234 
       
   235     /**
       
   236     * Copies variant from in to out map if entry with provided key exists
       
   237     * @param aKey a key
       
   238     * @param aInMap input map
       
   239     * @param aOutMap output map
       
   240     */    
       
   241     void CopyVariantL(const TDesC8& aKey, const CLiwMap* aInMap, 
       
   242     		CLiwDefaultMap* aOutMap );
       
   243 
       
   244     /**
       
   245     * Copies variant from in map for key KActionTrigger to out map with key KActionTrigger16 
       
   246     * and formated type(from TDesC8 to TDesC) 
       
   247     * @param aInMap input map
       
   248     * @param aOutMap output map
       
   249     */    
       
   250     void CopyActionTrigger16L( const CLiwMap* aInMap, 
       
   251     		CLiwDefaultMap* aOutMap );
       
   252 
       
   253 private:
       
   254     // data
       
   255 
       
   256     /*
       
   257      * Storage database
       
   258      * Own.
       
   259      */
       
   260     CCpStorage* iStorage;
       
   261 
       
   262     /*
       
   263      * Array of registered notification handlers.
       
   264      * Own.
       
   265      */
       
   266     RPointerArray<CCPNotificationHandler> iNotificationsArray;
       
   267 
       
   268 #ifdef CONTENT_PUBLISHER_DEBUG
       
   269     CCPDebug* iDebug;
       
   270 #endif
       
   271     };
       
   272 
       
   273 #endif // C_CPDATA_MANAGER_H
       
   274 // end of file