homesync/contentmanager/mediaservant/src/msmetadatacollector.cpp
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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:  Collects metadata based on user selections
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDES
       
    20 #include <e32std.h>
       
    21 #include "cmsqlpropertycontainer.h"
       
    22 #include "cmsqlpropertyitem.h"
       
    23 #include "cmsqlpropertycollector.h"
       
    24 #include "msmetadatacollector.h"
       
    25 #include "msappui.h"
       
    26 #include "msengine.h"
       
    27 #include "msdebug.h"
       
    28 
       
    29 
       
    30 // ---------------------------------------------------------------------------
       
    31 // NewL
       
    32 // ---------------------------------------------------------------------------
       
    33 //
       
    34 EXPORT_C CMSMetadataCollector* CMSMetadataCollector::NewL(
       
    35                                                     CMSAppUi& aMSAppUi,
       
    36                                                     TCmMediaType aMediaType,
       
    37                                                     RArray<TInt>& aGenreArray,
       
    38                                                     RArray<TInt>& aArtistArray,
       
    39                                                     RArray<TInt>& aAlbumArray,
       
    40                                                     RArray<TInt>& aTrackArray )
       
    41     {
       
    42     LOG(_L("[MediaServant]\t CMSMetadataCollector::NewL"));
       
    43     
       
    44     CMSMetadataCollector* self = CMSMetadataCollector::NewLC(
       
    45                                                         aMSAppUi,
       
    46                                                         aMediaType,
       
    47                                                         aGenreArray,
       
    48                                                         aArtistArray,
       
    49                                                         aAlbumArray,
       
    50                                                         aTrackArray );
       
    51     CleanupStack::Pop( self );
       
    52     return self;
       
    53     }
       
    54 
       
    55 // ---------------------------------------------------------------------------
       
    56 // NewLC
       
    57 // ---------------------------------------------------------------------------
       
    58 //
       
    59 EXPORT_C CMSMetadataCollector* CMSMetadataCollector::NewLC(
       
    60                                                     CMSAppUi& aAppUi,
       
    61                                                     TCmMediaType aMediaType,
       
    62                                                     RArray<TInt>& aGenreArray,
       
    63                                                     RArray<TInt>& aArtistArray,
       
    64                                                     RArray<TInt>& aAlbumArray,
       
    65                                                     RArray<TInt>& aTrackArray )
       
    66     {
       
    67     LOG(_L("[MediaServant]\t CMSMetadataCollector::NewLC"));
       
    68     
       
    69     CMSMetadataCollector* self = new ( ELeave ) CMSMetadataCollector(
       
    70                                                         aAppUi,
       
    71                                                         aMediaType,
       
    72                                                         aGenreArray,
       
    73                                                         aArtistArray,
       
    74                                                         aAlbumArray,
       
    75                                                         aTrackArray );
       
    76     CleanupStack::PushL( self );
       
    77     self->ConstructL();
       
    78     return self;
       
    79     }
       
    80 
       
    81 // ---------------------------------------------------------------------------
       
    82 // Destructor
       
    83 // ---------------------------------------------------------------------------
       
    84 //
       
    85 CMSMetadataCollector::~CMSMetadataCollector()
       
    86     {
       
    87     LOG(_L("[MediaServant]\t CMSMetadataCollector::~CMSMetadataCollector"));
       
    88     
       
    89     delete iMetadataCollector;
       
    90     }
       
    91 
       
    92 // ---------------------------------------------------------------------------
       
    93 // Default constructor
       
    94 // ---------------------------------------------------------------------------
       
    95 //
       
    96 CMSMetadataCollector::CMSMetadataCollector( CMSAppUi& aMSAppUi,
       
    97                                             TCmMediaType aMediaType,
       
    98                                             RArray<TInt>& aGenreArray,
       
    99                                             RArray<TInt>& aArtistArray,
       
   100                                             RArray<TInt>& aAlbumArray,
       
   101                                             RArray<TInt>& aTrackArray ) :
       
   102     iMSAppUi( &aMSAppUi ),
       
   103     iMediaType( aMediaType ),
       
   104     iGenreArray( &aGenreArray ),
       
   105     iArtistArray( &aArtistArray ),
       
   106     iAlbumArray( &aAlbumArray ),
       
   107     iTrackArray( &aTrackArray )
       
   108     {
       
   109     }
       
   110 
       
   111 // ---------------------------------------------------------------------------
       
   112 // CMSMetadataCollector::ConstructL
       
   113 // ---------------------------------------------------------------------------
       
   114 //
       
   115 void CMSMetadataCollector::ConstructL()
       
   116     {
       
   117     LOG(_L("[MediaServant]\t CMSMetadataCollector::ConstructL"));
       
   118     
       
   119     iMetadataCollector = CCmSqlPropertyCollector::NewL();
       
   120     AddContainersL();
       
   121     
       
   122     GetFilteredMetadataL();
       
   123     }
       
   124 
       
   125 
       
   126 // ---------------------------------------------------------------------------
       
   127 //CMSMetadataCollector::GetFilteredMetadataL
       
   128 // ---------------------------------------------------------------------------
       
   129 //
       
   130 void CMSMetadataCollector::GetFilteredMetadataL()
       
   131     {
       
   132     LOG(_L("[MediaServant]\t CMSMetadataCollector::GetFilteredMetadataL"));
       
   133     
       
   134     DeleteAllItems();
       
   135 
       
   136     // TRACKS - this is both video titles and music tracks
       
   137     for ( TInt index = 0; index < iTrackArray->Count(); index++ )
       
   138         {
       
   139         CCmSqlPropertyItem* item = CCmSqlPropertyItem::NewLC();
       
   140 
       
   141         item->SetId( (*iTrackArray)[index] );
       
   142 
       
   143 
       
   144         CCmSqlPropertyContainer* container =
       
   145                         iMetadataCollector->PropertyContainer( ETracks );
       
   146         container->AddPropertyItemL( item );
       
   147         CleanupStack::Pop( item );
       
   148         }
       
   149 
       
   150     if ( iMediaType == ECmAudio )
       
   151         {
       
   152         // ARTISTS
       
   153         for ( TInt index = 0; index < iArtistArray->Count(); index++ )
       
   154             {
       
   155             CCmSqlPropertyItem* item = CCmSqlPropertyItem::NewLC();
       
   156             item->SetId( (*iArtistArray)[index] );
       
   157 
       
   158             CCmSqlPropertyContainer* container =
       
   159                         iMetadataCollector->PropertyContainer( EArtists );
       
   160             container->AddPropertyItemL( item );
       
   161             CleanupStack::Pop( item );
       
   162             }
       
   163 
       
   164         // GENRES
       
   165         for ( TInt index = 0; index < iGenreArray->Count(); index++ )
       
   166             {
       
   167             CCmSqlPropertyItem* item = CCmSqlPropertyItem::NewLC();
       
   168             item->SetId( (*iGenreArray)[index] );
       
   169 
       
   170             CCmSqlPropertyContainer* container =
       
   171                         iMetadataCollector->PropertyContainer( EGenres );
       
   172             container->AddPropertyItemL( item );
       
   173 
       
   174             CleanupStack::Pop( item );
       
   175             }
       
   176 
       
   177         // ALBUMS
       
   178         for ( TInt index = 0; index < iAlbumArray->Count(); index++ )
       
   179             {
       
   180             CCmSqlPropertyItem* item = CCmSqlPropertyItem::NewLC();
       
   181             item->SetId( (*iAlbumArray)[index] );
       
   182 
       
   183             CCmSqlPropertyContainer* container =
       
   184                         iMetadataCollector->PropertyContainer( EAlbums );
       
   185             container->AddPropertyItemL( item );
       
   186 
       
   187             CleanupStack::Pop( item );
       
   188             }
       
   189         }
       
   190 
       
   191     // Start asynchronous metadata query.
       
   192     // Engine observer's ReadyL will be called when ready
       
   193     iMSAppUi->MSEngine()->GetFilteredMetadataL( iMetadataCollector );
       
   194     }
       
   195 
       
   196 // --------------------------------------------------------------------------
       
   197 //CMSMetadataCollector::DeleteAllItems
       
   198 // --------------------------------------------------------------------------
       
   199 //
       
   200 void CMSMetadataCollector::DeleteAllItems()
       
   201     {
       
   202     LOG(_L("[MediaServant]\t CMSMetadataCollector::DeleteAllItems"));
       
   203     
       
   204     for ( TInt index = 0;
       
   205           index < iMetadataCollector->PropertyContainerCount();
       
   206           index++ )
       
   207         {
       
   208         CCmSqlPropertyContainer* container =
       
   209                             iMetadataCollector->PropertyContainer( index );
       
   210         for ( TInt idx = 0; idx < container->PropertyItemCount(); idx++ )
       
   211             {
       
   212             container->DeletePropertyItem( idx-- );
       
   213             }
       
   214         }
       
   215     }
       
   216 
       
   217 // --------------------------------------------------------------------------
       
   218 //CMSMetadataCollector::AddContainersL
       
   219 // --------------------------------------------------------------------------
       
   220 //
       
   221 void CMSMetadataCollector::AddContainersL()
       
   222     {
       
   223     LOG(_L("[MediaServant]\t CMSMetadataCollector::AddContainersL"));
       
   224     
       
   225     // tracks
       
   226     // this container is used both videos and music    
       
   227     CCmSqlPropertyContainer* trackContainer =
       
   228                                 CCmSqlPropertyContainer::NewLC();
       
   229     trackContainer->SetType( ECmTitle );
       
   230     iMetadataCollector->AddPropertyContainerL( trackContainer );
       
   231     CleanupStack::Pop( trackContainer );
       
   232 
       
   233     if ( iMediaType == ECmAudio )
       
   234         {
       
   235         // artists  
       
   236         CCmSqlPropertyContainer* artistContainer =
       
   237                                 CCmSqlPropertyContainer::NewLC();            
       
   238         artistContainer->SetType( ECmArtist );
       
   239         iMetadataCollector->AddPropertyContainerL( artistContainer );
       
   240         CleanupStack::Pop( artistContainer );
       
   241 
       
   242         // genres
       
   243         CCmSqlPropertyContainer* genreContainer =
       
   244                                 CCmSqlPropertyContainer::NewLC();
       
   245         genreContainer->SetType( ECmGenre );
       
   246         iMetadataCollector->AddPropertyContainerL( genreContainer );
       
   247         CleanupStack::Pop( genreContainer );
       
   248 
       
   249         // albums
       
   250         CCmSqlPropertyContainer* albumContainer =
       
   251                                 CCmSqlPropertyContainer::NewLC();
       
   252         albumContainer->SetType( ECmAlbum );
       
   253         iMetadataCollector->AddPropertyContainerL( albumContainer );
       
   254         CleanupStack::Pop( albumContainer );
       
   255         }
       
   256     }
       
   257 
       
   258 // ---------------------------------------------------------------------------
       
   259 //CMSMetadataCollector::Genres
       
   260 // ---------------------------------------------------------------------------
       
   261 //
       
   262 CCmSqlPropertyContainer* CMSMetadataCollector::Genres()
       
   263     {
       
   264     return iMetadataCollector->PropertyContainer( EGenres );
       
   265     }
       
   266 
       
   267 // ---------------------------------------------------------------------------
       
   268 //CMSMetadataCollector::Artists
       
   269 // ---------------------------------------------------------------------------
       
   270 //
       
   271 CCmSqlPropertyContainer* CMSMetadataCollector::Artists()
       
   272     {
       
   273     return iMetadataCollector->PropertyContainer( EArtists );
       
   274     }
       
   275 
       
   276 // ---------------------------------------------------------------------------
       
   277 //CMSMetadataCollector::Albums
       
   278 // ---------------------------------------------------------------------------
       
   279 //
       
   280 CCmSqlPropertyContainer* CMSMetadataCollector::Albums()
       
   281     {
       
   282     return iMetadataCollector->PropertyContainer( EAlbums );
       
   283     }
       
   284 
       
   285 // ---------------------------------------------------------------------------
       
   286 //CMSMetadataCollector::Tracks
       
   287 // ---------------------------------------------------------------------------
       
   288 //
       
   289 CCmSqlPropertyContainer* CMSMetadataCollector::Tracks()
       
   290     {
       
   291     return iMetadataCollector->PropertyContainer( ETracks );
       
   292     }
       
   293 
       
   294 // End of file
       
   295