ximpfw/core/srcdatamodel/ximpsubscriptionitembase.cpp
changeset 0 e6b17d312c8b
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-1:000000000000 0:e6b17d312c8b
       
     1 /*
       
     2 * Copyright (c) 2006 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:  Presence Service Connection subscription item base implementation.
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 #include "ximpsubscriptionitembase.h"
       
    20 #include "ximpitemparent.h"
       
    21 #include "ximppanics.h"
       
    22 #include "ximppsccontext.h"
       
    23 #include "ximpdatasubscriptionstateimp.h"
       
    24 #include "ximpobjecthelpers.h"
       
    25 
       
    26 #include "ximptrace.h"
       
    27 
       
    28 const TInt KXIMPContentAutoExpiryTime = 15; // Seconds
       
    29 
       
    30 
       
    31 // ---------------------------------------------------------------------------
       
    32 // CXIMPSubscriptionItemBase::OrderOfContexts()
       
    33 // ---------------------------------------------------------------------------
       
    34 //
       
    35 TInt CXIMPSubscriptionItemBase::OrderOfContexts( const MXIMPPscContext& aFirst,
       
    36                                                  const MXIMPPscContext& aSecond )
       
    37     {
       
    38     if( &aFirst < &aSecond )
       
    39         {
       
    40         return -1;
       
    41         }
       
    42     else if( &aFirst == &aSecond )
       
    43         {
       
    44         return 0;
       
    45         }
       
    46     else
       
    47         {
       
    48         return 1;
       
    49         }
       
    50     }
       
    51 
       
    52 // ---------------------------------------------------------------------------
       
    53 // CXIMPSubscriptionItemBase::OrderOfContexts()
       
    54 // ---------------------------------------------------------------------------
       
    55 //
       
    56 TInt CXIMPSubscriptionItemBase::OrderOfItems( const CXIMPSubscriptionItemBase& aFirst,
       
    57                                               const CXIMPSubscriptionItemBase& aSecond )
       
    58     {
       
    59     if( &aFirst < &aSecond )
       
    60         {
       
    61         return -1;
       
    62         }
       
    63     else if( &aFirst == &aSecond )
       
    64         {
       
    65         return 0;
       
    66         }
       
    67     else
       
    68         {
       
    69         return 1;
       
    70         }
       
    71     }
       
    72 
       
    73 
       
    74 // ---------------------------------------------------------------------------
       
    75 // CXIMPSubscriptionItemBase::CXIMPSubscriptionItemBase()
       
    76 // ---------------------------------------------------------------------------
       
    77 //
       
    78 EXPORT_C CXIMPSubscriptionItemBase::CXIMPSubscriptionItemBase( MXIMPItemParentBase& aParent )
       
    79 : iParent( aParent )
       
    80     {
       
    81     }
       
    82 
       
    83 // ---------------------------------------------------------------------------
       
    84 // CXIMPSubscriptionItemBase::BaseConstructL()
       
    85 // ---------------------------------------------------------------------------
       
    86 //
       
    87 EXPORT_C void CXIMPSubscriptionItemBase::BaseConstructL()
       
    88     {
       
    89     CXIMPDataSubscriptionStateImp* datasubscription = NULL;
       
    90     SetDataSubscriptionStateL(*datasubscription);
       
    91     iSubscriptionState = CXIMPDataSubscriptionStateImp::NewL();
       
    92     }
       
    93 
       
    94 // ---------------------------------------------------------------------------
       
    95 // CXIMPSubscriptionItemBase::~CXIMPSubscriptionItemBase()
       
    96 // ---------------------------------------------------------------------------
       
    97 //
       
    98 EXPORT_C CXIMPSubscriptionItemBase::~CXIMPSubscriptionItemBase()
       
    99     {
       
   100     __ASSERT_ALWAYS( !CountOfSubscribers(),
       
   101                      User::Panic( NXIMPPrivPanic::KCategory, NXIMPPrivPanic::EArrayCountNotValid ) );
       
   102     iContexts.Close();
       
   103     iPreContexts.Close();
       
   104     iItems.Close();
       
   105     iPreItems.Close();
       
   106     delete iSubscriptionState;
       
   107     }
       
   108 
       
   109 // ---------------------------------------------------------------------------
       
   110 // CXIMPSubscriptionItemBase::SubscriptionStatus()
       
   111 // ---------------------------------------------------------------------------
       
   112 //
       
   113 EXPORT_C CXIMPSubscriptionItemBase::TSubscriptionStatus
       
   114            CXIMPSubscriptionItemBase::SubscriptionStatus( MXIMPPscContext* aContext )
       
   115     {
       
   116     // Calculate situation
       
   117     TInt count = iContexts.Count() + iItems.Count();
       
   118     TBool contextFound = IsContext( aContext );
       
   119     if( count == 0 )
       
   120         {
       
   121         return ENotSubscribedAtAll;
       
   122         }
       
   123     else if( contextFound )
       
   124         {
       
   125         if( count == 1 )
       
   126             {
       
   127             return ESubscribedForCtxOnly;
       
   128             }
       
   129         return ESubscribedForCtxAndOthers;
       
   130         }
       
   131     return ESubscribedForOtherCtxOnly;
       
   132     }
       
   133 
       
   134 // ---------------------------------------------------------------------------
       
   135 // CXIMPSubscriptionItemBase::AddSubscriberL()
       
   136 // ---------------------------------------------------------------------------
       
   137 //
       
   138 EXPORT_C void CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext )
       
   139     {
       
   140     TRACE_2( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : this = %d , aContext = %d"), this, aContext );
       
   141 
       
   142     TRACE_1( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : iPreContexts.Count 1 = %d"), iPreContexts.Count() );
       
   143     TRACE_1( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : iContexts.Count 1 = %d"), iContexts.Count() );        
       
   144     
       
   145     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   146     if( IsContext( aContext ) )
       
   147         {
       
   148         User::Leave( KErrAlreadyExists );
       
   149         }
       
   150         
       
   151     TInt index = iPreContexts.FindInOrder( aContext, order );
       
   152     TRACE_1( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : iPreContexts.FindInOrder = %d"), index );
       
   153     
       
   154     if( index != KErrNotFound )
       
   155         {
       
   156         User::Leave( KErrAlreadyExists );
       
   157         }
       
   158 
       
   159     iPreContexts.InsertInOrderL( aContext, order );
       
   160     
       
   161     User::LeaveIfError( Open() );
       
   162     
       
   163     TRACE_1( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : iPreContexts.Count 2 = %d"), iPreContexts.Count() );
       
   164     TRACE_1( _L("CXIMPSubscriptionItemBase::AddSubscriberL( MXIMPPscContext* aContext ) : iContexts.Count 2 = %d"), iContexts.Count() );        
       
   165 
       
   166     ChangeStatusAfterAdd();
       
   167     }
       
   168 
       
   169 // ---------------------------------------------------------------------------
       
   170 // CXIMPSubscriptionItemBase::RemoveSubscriber()
       
   171 // ---------------------------------------------------------------------------
       
   172 //
       
   173 EXPORT_C void CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext )
       
   174     {
       
   175     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iPreContexts.Count 1 = %d"), iPreContexts.Count() );
       
   176     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iContexts.Count 1 = %d"), iContexts.Count() );        
       
   177 
       
   178     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   179     TInt index = iContexts.FindInOrder( aContext, order );
       
   180     TInt preIndex = iPreContexts.FindInOrder( aContext, order );
       
   181 
       
   182     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iContexts.FindInOrder = %d"), index );
       
   183     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iPreContexts.FindInOrder = %d"), preIndex );        
       
   184 
       
   185     if( index >= 0 )
       
   186         {
       
   187         TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iContexts.Remove( index ):  aContext = %d"), aContext );        
       
   188         
       
   189         iContexts.Remove( index );
       
   190         ChangeStatusAfterRemove();
       
   191         Close();
       
   192         }
       
   193     else if( preIndex >= 0 )
       
   194         {
       
   195         TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iPreContexts.Remove( preIndex ):  aContext = %d"), aContext );        
       
   196         
       
   197         iPreContexts.Remove( preIndex );
       
   198         ChangeStatusAfterRemove();
       
   199         Close();
       
   200         }
       
   201     else
       
   202         {
       
   203         TRACE( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iParent.UnregisterExpiringItem") );        
       
   204         
       
   205         iParent.UnregisterExpiringItem( this );
       
   206         }
       
   207 
       
   208     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iPreContexts.Count 2 = %d"), iPreContexts.Count() );
       
   209     TRACE_1( _L("CXIMPSubscriptionItemBase::RemoveSubscriber( MXIMPPscContext* aContext ) : iContexts.Count 2 = %d"), iContexts.Count() );        
       
   210 
       
   211     }
       
   212 
       
   213 // ---------------------------------------------------------------------------
       
   214 // CXIMPSubscriptionItemBase::AddSubscriberL()
       
   215 // ---------------------------------------------------------------------------
       
   216 //
       
   217 EXPORT_C void CXIMPSubscriptionItemBase::AddSubscriberL( CXIMPSubscriptionItemBase* aItem )
       
   218     {
       
   219     TRACE( _L("CXIMPSubscriptionItemBase::AddSubscriberL( CXIMPSubscriptionItemBase* aItem ) : begin") );        
       
   220     
       
   221     TLinearOrder< CXIMPSubscriptionItemBase > order( OrderOfItems );
       
   222     TInt index = iItems.FindInOrder( aItem, order );
       
   223     if( index != KErrNotFound )
       
   224         {
       
   225         return;
       
   226         }
       
   227     index = iPreItems.FindInOrder( aItem, order );
       
   228     if( index != KErrNotFound )
       
   229         {
       
   230         return;
       
   231         }
       
   232 
       
   233     iPreItems.InsertInOrderL( aItem, order );
       
   234     User::LeaveIfError( Open() );
       
   235     ChangeStatusAfterAdd();
       
   236     
       
   237     TRACE( _L("CXIMPSubscriptionItemBase::AddSubscriberL( CXIMPSubscriptionItemBase* aItem ) : end") );        
       
   238     }
       
   239 
       
   240 // ---------------------------------------------------------------------------
       
   241 // CXIMPSubscriptionItemBase::RemoveSubscriber()
       
   242 // ---------------------------------------------------------------------------
       
   243 //
       
   244 EXPORT_C void CXIMPSubscriptionItemBase::RemoveSubscriber( CXIMPSubscriptionItemBase* aItem )
       
   245     {
       
   246     TRACE( _L("CXIMPSubscriptionItemBase::RemoveSubscriberL( CXIMPSubscriptionItemBase* aItem ) : begin") );        
       
   247     
       
   248     TLinearOrder< CXIMPSubscriptionItemBase > order( OrderOfItems );
       
   249     TInt index = iItems.FindInOrder( aItem, order );
       
   250     TInt preIndex = iPreItems.FindInOrder( aItem, order );
       
   251     if( index >= 0 )
       
   252         {
       
   253         iItems.Remove( index );
       
   254         ChangeStatusAfterRemove();
       
   255         Close();
       
   256         }
       
   257     else if( preIndex >= 0 )
       
   258         {
       
   259         iPreItems.Remove( index );
       
   260         ChangeStatusAfterRemove();
       
   261         Close();
       
   262         }
       
   263     else
       
   264         {
       
   265         iParent.UnregisterExpiringItem( this );
       
   266         }
       
   267     
       
   268     TRACE( _L("CXIMPSubscriptionItemBase::RemoveSubscriberL( CXIMPSubscriptionItemBase* aItem ) : end") );                
       
   269     }
       
   270 
       
   271 // ---------------------------------------------------------------------------
       
   272 // CXIMPSubscriptionItemBase::ForceClose()
       
   273 // ---------------------------------------------------------------------------
       
   274 //
       
   275 EXPORT_C void CXIMPSubscriptionItemBase::ForceClose()
       
   276     {
       
   277     TInt count = iContexts.Count();
       
   278     for( TInt a = 0; a < count; ++a )
       
   279         {
       
   280         // RemoveSubscriber removes first one every time.
       
   281         RemoveSubscriber( iContexts[ 0 ] );
       
   282         }
       
   283     count = iItems.Count();
       
   284     for( TInt a = 0; a < count; ++a )
       
   285         {
       
   286         RemoveSubscriber( iItems[ 0 ] );
       
   287         }
       
   288     }
       
   289 
       
   290 // ---------------------------------------------------------------------------
       
   291 // CXIMPSubscriptionItemBase::CleanIfExpired()
       
   292 // ---------------------------------------------------------------------------
       
   293 //
       
   294 EXPORT_C TBool CXIMPSubscriptionItemBase::CleanIfExpired()
       
   295     {
       
   296     TTime timeNow;
       
   297     timeNow.UniversalTime();
       
   298     TBool expired =
       
   299         ( iExpireTime + TTimeIntervalSeconds( KXIMPContentAutoExpiryTime ) ) < timeNow;
       
   300     if( expired )
       
   301         {
       
   302         CleanExpired();
       
   303         }
       
   304     return expired;
       
   305     }
       
   306 
       
   307 // ---------------------------------------------------------------------------
       
   308 // CXIMPSubscriptionItemBase::UpdateSubscriptionStateL()
       
   309 // ---------------------------------------------------------------------------
       
   310 //
       
   311 EXPORT_C void CXIMPSubscriptionItemBase::UpdateSubscriptionStateL( TSubscriptionEvent aUpdateState )
       
   312     {
       
   313     switch( aUpdateState )
       
   314         {
       
   315         case ECompleteDataReceived:
       
   316             {
       
   317             if( CountOfSubscribers() == 0 )
       
   318                 {
       
   319                 UpdateExpirationL();
       
   320                 }
       
   321             break;
       
   322             }
       
   323         default:
       
   324             {
       
   325             User::Panic( NXIMPPrivPanic::KCategory, NXIMPPrivPanic::ESubscriptionItemLogicError );
       
   326             break;
       
   327             }
       
   328         }
       
   329     }
       
   330     
       
   331 
       
   332 // ---------------------------------------------------------------------------
       
   333 // CXIMPSubscriptionItemBase::DataSubscriptionState()
       
   334 // ---------------------------------------------------------------------------
       
   335 //
       
   336 EXPORT_C const MXIMPDataSubscriptionState& CXIMPSubscriptionItemBase::DataSubscriptionState()
       
   337     {
       
   338     return *iSubscriptionState;
       
   339     }
       
   340 
       
   341 // ---------------------------------------------------------------------------
       
   342 // CXIMPSubscriptionItemBase::ContextCount()
       
   343 // ---------------------------------------------------------------------------
       
   344 //
       
   345 EXPORT_C TInt CXIMPSubscriptionItemBase::ContextCount() const
       
   346     {
       
   347 //    return iContexts.Count();
       
   348     TInt count = iContexts.Count();
       
   349     TRACE_1( _L("CXIMPSubscriptionItemBase::ContextCount() : return = %d"), count );
       
   350     return count;
       
   351     }
       
   352 
       
   353 // ---------------------------------------------------------------------------
       
   354 // CXIMPSubscriptionItemBase::Context()
       
   355 // ---------------------------------------------------------------------------
       
   356 //
       
   357 EXPORT_C MXIMPPscContext& CXIMPSubscriptionItemBase::Context( TInt aIndex )
       
   358     {
       
   359     return *iContexts[ aIndex ];
       
   360     }
       
   361 
       
   362 // ---------------------------------------------------------------------------
       
   363 // CXIMPSubscriptionItemBase::Context()
       
   364 // ---------------------------------------------------------------------------
       
   365 //
       
   366 EXPORT_C TBool CXIMPSubscriptionItemBase::IsContext( MXIMPPscContext* aContext ) const
       
   367     {
       
   368     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   369 //    return iContexts.FindInOrder( aContext, order ) != KErrNotFound;
       
   370     TBool ret = iContexts.FindInOrder( aContext, order ) != KErrNotFound;
       
   371     TRACE_1( _L("CXIMPSubscriptionItemBase::IsContext( MXIMPPscContext* aContext ) : return = %d"), (TInt)ret );
       
   372     return ret;
       
   373     }
       
   374 
       
   375 // ---------------------------------------------------------------------------
       
   376 // CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL()
       
   377 // ---------------------------------------------------------------------------
       
   378 //
       
   379 EXPORT_C void CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL()
       
   380     {
       
   381     TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() : this = %d " ), this );
       
   382     RPointerArray< MXIMPPscContext > contextArray;
       
   383     CleanupClosePushL( contextArray );
       
   384     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   385 
       
   386     TInt contextCount = iContexts.Count();
       
   387     
       
   388     TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() contextCount = %d"), contextCount );
       
   389     TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() : iPreContexts.Count = %d"), iPreContexts.Count() );
       
   390     
       
   391     for( TInt a = 0; a < contextCount; ++a )
       
   392         {
       
   393         contextArray.InsertInOrderL( iContexts[ a ], order );
       
   394         }
       
   395 
       
   396     TInt itemCount = iItems.Count();
       
   397     TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() itemCount = %d"), itemCount );
       
   398     
       
   399     for( TInt a = 0; a < itemCount; ++a )
       
   400         {
       
   401         TInt contextCount = iItems[ a ]->ContextCount();
       
   402         for( TInt b = 0; b < contextCount; ++b )
       
   403             {
       
   404             TInt error = contextArray.InsertInOrder( &iItems[ a ]->Context( b ), order );
       
   405             if( error != KErrNotFound )
       
   406                 {
       
   407                 User::LeaveIfError( error );
       
   408                 }
       
   409             }
       
   410         }
       
   411 
       
   412     TInt count = contextArray.Count();
       
   413     TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() contextArray.Count() = %d"), count );
       
   414     
       
   415     for( TInt a = 0; a < count; ++a )
       
   416         {
       
   417         TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() Sending event to = %d"), a );
       
   418         TInt error ( KErrNone );
       
   419         TRAP( error, SynthesiseSubscriptionEventToL( contextArray[ a ], ETrue ); );
       
   420         TRACE_1( _L("CXIMPSubscriptionItemBase::SynthesiseSubscriptionEventToAllCtxsL() : TRAPD( error, SynthesiseSubscriptionEventToL = %d"), error );
       
   421         }
       
   422     CleanupStack::PopAndDestroy(); // contextArray
       
   423     }
       
   424 
       
   425 // ---------------------------------------------------------------------------
       
   426 // CXIMPSubscriptionItemBase::ActivateSubscriberL()
       
   427 // ---------------------------------------------------------------------------
       
   428 //
       
   429 EXPORT_C void CXIMPSubscriptionItemBase::ActivateSubscriberL( MXIMPPscContext* aContext )
       
   430     {
       
   431     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL( MXIMPPscContext* aContext ) : this = %d "),this );
       
   432     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   433     TInt index = iPreContexts.FindInOrder( aContext, order );
       
   434     
       
   435     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : MXIMPPscContext* aContext = %d"), aContext );
       
   436     
       
   437     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iPreContexts.Count 1 = %d"), iPreContexts.Count() );
       
   438     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iContexts.Count 1 = %d"), iContexts.Count() );        
       
   439     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iPreContexts.FindInOrder = %d"), index );
       
   440     if( index != KErrNotFound )
       
   441         {
       
   442         iContexts.InsertInOrderL( iPreContexts[ index ], order );
       
   443         iPreContexts.Remove( index );
       
   444         }
       
   445         
       
   446     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iPreContexts.Count 2 = %d"), iPreContexts.Count() );
       
   447     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iContexts.Count 2 = %d"), iContexts.Count() );        
       
   448     }
       
   449 
       
   450 // ---------------------------------------------------------------------------
       
   451 // CXIMPSubscriptionItemBase::ActivateSubscriberL()
       
   452 // ---------------------------------------------------------------------------
       
   453 //
       
   454 EXPORT_C void CXIMPSubscriptionItemBase::ActivateSubscriberL( CXIMPSubscriptionItemBase* aItem )
       
   455     {
       
   456     TRACE( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL( CXIMPSubscriptionItemBase* aItem )" ) );
       
   457     TLinearOrder< CXIMPSubscriptionItemBase > order( OrderOfItems );
       
   458     TInt index = iPreItems.FindInOrder( aItem, order );
       
   459     TRACE_1( _L("CXIMPSubscriptionItemBase::ActivateSubscriberL() : iPreItems.FindInOrder = %d"), index );
       
   460     
       
   461     if( index != KErrNotFound )
       
   462         {
       
   463         iItems.InsertInOrderL( iPreItems[ index ], order );
       
   464         iPreItems.Remove( index );
       
   465         }
       
   466     }
       
   467 
       
   468 // ---------------------------------------------------------------------------
       
   469 // CXIMPSubscriptionItemBase::Status()
       
   470 // ---------------------------------------------------------------------------
       
   471 //
       
   472 EXPORT_C void CXIMPSubscriptionItemBase::SetDataSubscriptionStateL( CXIMPDataSubscriptionStateImp& aNewState )
       
   473     {
       
   474     // Some handle logic for terminating subscribers, data expiration etc. missing.
       
   475     delete iSubscriptionState;
       
   476     iSubscriptionState = &aNewState;
       
   477     }
       
   478 
       
   479 // ---------------------------------------------------------------------------
       
   480 // CXIMPSubscriptionItemBase::Status()
       
   481 // ---------------------------------------------------------------------------
       
   482 //
       
   483 EXPORT_C CXIMPDataSubscriptionStateImp* CXIMPSubscriptionItemBase::StatusLC( MXIMPPscContext* aContext ) const
       
   484     {
       
   485     MXIMPDataSubscriptionState::TSubscriptionState subscriptionState = iSubscriptionState->SubscriptionState();
       
   486     MXIMPDataSubscriptionState::TDataState dataState = iSubscriptionState->DataState();
       
   487     CXIMPDataSubscriptionStateImp* state = 
       
   488             TXIMPObjectCloner< CXIMPDataSubscriptionStateImp >::CloneL( *iSubscriptionState );
       
   489     CleanupStack::PushL( state );
       
   490     
       
   491     state->SetSubscriptionState( MXIMPDataSubscriptionState::ESubscriptionInactive );
       
   492     state->SetDataState( MXIMPDataSubscriptionState::EDataUnavailable );
       
   493     TInt count = iItems.Count();
       
   494     for( TInt a = 0; a < count; ++a )
       
   495         {
       
   496         if( iItems[ a ]->IsContext( aContext ) )
       
   497             {
       
   498             state->SetSubscriptionState( subscriptionState );
       
   499             state->SetDataState( dataState );
       
   500             return state;
       
   501             }
       
   502         }
       
   503     count = iPreItems.Count();
       
   504     for( TInt a = 0; a < count; ++a )
       
   505         {
       
   506         if( iPreItems[ a ]->IsContext( aContext ) )
       
   507             {
       
   508             state->SetSubscriptionState( MXIMPDataSubscriptionState::ESubscriptionActive );
       
   509             }
       
   510         }
       
   511 
       
   512     TLinearOrder< MXIMPPscContext > order( OrderOfContexts );
       
   513     TInt index = iContexts.FindInOrder( aContext, order );
       
   514     if( index == KErrNotFound )
       
   515         {
       
   516         index = iPreContexts.FindInOrder( aContext, order );
       
   517         if( index != KErrNotFound ) // Not yet activated
       
   518             {
       
   519             state->SetSubscriptionState( MXIMPDataSubscriptionState::ESubscriptionActive );
       
   520             }
       
   521         }
       
   522     else
       
   523         {
       
   524         state->SetSubscriptionState( subscriptionState );
       
   525         state->SetDataState( dataState );
       
   526         }
       
   527     return state;
       
   528     }
       
   529 
       
   530 // ---------------------------------------------------------------------------
       
   531 // CXIMPSubscriptionItemBase::UpdateExpirationL()
       
   532 // ---------------------------------------------------------------------------
       
   533 //
       
   534 EXPORT_C void CXIMPSubscriptionItemBase::UpdateExpirationL()
       
   535     {
       
   536     if( CountOfSubscribers() == 0 )
       
   537         {
       
   538         iParent.RegisterExpiringItemL( this );
       
   539         }
       
   540     iExpireTime.UniversalTime();
       
   541     }
       
   542 
       
   543 
       
   544 // ---------------------------------------------------------------------------
       
   545 // CXIMPSubscriptionItemBase::ChangeStatusAfterRemove()
       
   546 // ---------------------------------------------------------------------------
       
   547 //
       
   548 EXPORT_C void CXIMPSubscriptionItemBase::ChangeStatusAfterRemove()
       
   549     {
       
   550     if( CountOfSubscribers() == 0 )
       
   551         {
       
   552         iSubscriptionState->SetSubscriptionState( MXIMPDataSubscriptionState::ESubscriptionInactive );
       
   553         }
       
   554     }
       
   555 
       
   556 
       
   557 // ---------------------------------------------------------------------------
       
   558 // CXIMPSubscriptionItemBase::ChangeStatusAfterAdd()
       
   559 // ---------------------------------------------------------------------------
       
   560 //
       
   561 EXPORT_C void CXIMPSubscriptionItemBase::ChangeStatusAfterAdd()
       
   562     {
       
   563     iSubscriptionState->SetSubscriptionState( MXIMPDataSubscriptionState::ESubscriptionActive );
       
   564     }
       
   565 
       
   566 // ---------------------------------------------------------------------------
       
   567 // CXIMPSubscriptionItemBase::CountOfSubscribers()
       
   568 // ---------------------------------------------------------------------------
       
   569 //
       
   570 EXPORT_C TInt CXIMPSubscriptionItemBase::CountOfSubscribers()
       
   571     {
       
   572     return iItems.Count() + iPreItems.Count() + iContexts.Count() + iPreContexts.Count();
       
   573     }
       
   574 // End of file