landmarks/locationlandmarks/dbmanprov/src/EPos_CPosLmDbManPluginStore.cpp
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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: This class manages the collection of protocol-specific database manager
       
    15 *  implementations.
       
    16 *
       
    17 *
       
    18 */
       
    19 
       
    20 
       
    21 // INCLUDE FILES
       
    22 #include <ecom/ecom.h>
       
    23 #include <EPos_LandmarksDbManagerUids.hrh>
       
    24 #include <EPos_LandmarksErrors.h>
       
    25 #include <EPos_CPosLmDatabaseManagerPluginBase.h>
       
    26 #include "EPos_CPosLmDbManPluginInfo.h"
       
    27 #include "EPos_CPosLmDbManPluginStore.h"
       
    28 
       
    29 // ================= LOCAL FUNCTIONS ========================
       
    30 
       
    31 void CleanupImplInfoPointerArray(TAny* aArray)
       
    32     {
       
    33     (reinterpret_cast<RImplInfoPtrArray*>(aArray))->ResetAndDestroy();
       
    34     }
       
    35 
       
    36 
       
    37 
       
    38 // ================= MEMBER FUNCTIONS =======================
       
    39 
       
    40 // -----------------------------------------------------------------------------
       
    41 // CPosLmDbManPluginStore::CPosLmDbManPluginStore
       
    42 // C++ default constructor can NOT contain any code, that
       
    43 // might leave.
       
    44 // -----------------------------------------------------------------------------
       
    45 //
       
    46 CPosLmDbManPluginStore::CPosLmDbManPluginStore()
       
    47     {
       
    48     }
       
    49 
       
    50 // -----------------------------------------------------------------------------
       
    51 // CPosLmDbManPluginStore::ConstructL
       
    52 // Symbian 2nd phase constructor can leave.
       
    53 // -----------------------------------------------------------------------------
       
    54 //
       
    55 void CPosLmDbManPluginStore::ConstructL(TAny* aConstructionParams)
       
    56     {
       
    57 
       
    58     // List implementations that support this protocol
       
    59     TUid interfaceUid;
       
    60     interfaceUid.iUid = KPosLmDbManagerBaseIfUid;
       
    61 
       
    62     RImplInfoPtrArray implInfoArray;
       
    63     CleanupStack::PushL(TCleanupItem(CleanupImplInfoPointerArray,
       
    64                                      &implInfoArray));
       
    65 
       
    66     REComSession::ListImplementationsL(interfaceUid, implInfoArray);
       
    67     TInt count = implInfoArray.Count();
       
    68 
       
    69     if (count == 0)
       
    70         {
       
    71         User::Leave(KErrNotSupported);
       
    72         }
       
    73 
       
    74     for (TInt i = 0; i < count; i++)
       
    75         {
       
    76         TUid implementationUid =
       
    77             reinterpret_cast<CImplementationInformation*>(implInfoArray[i])->
       
    78             ImplementationUid();
       
    79 
       
    80         CPosLmDbManPluginInfo* plugin =
       
    81             CPosLmDbManPluginInfo::NewLC(
       
    82                 implementationUid, aConstructionParams);
       
    83 
       
    84         iPlugins.AppendL(plugin);
       
    85         CleanupStack::Pop(plugin);
       
    86         }
       
    87 
       
    88     CleanupStack::PopAndDestroy(&implInfoArray);
       
    89 
       
    90     }
       
    91 
       
    92 // -----------------------------------------------------------------------------
       
    93 // CPosLmDbManPluginStore::NewL
       
    94 // Two-phased constructor.
       
    95 // -----------------------------------------------------------------------------
       
    96 //
       
    97 CPosLmDbManPluginStore* CPosLmDbManPluginStore::NewL(
       
    98     TAny* aConstructionParams)
       
    99     {
       
   100     CPosLmDbManPluginStore* self = new( ELeave ) CPosLmDbManPluginStore;
       
   101     CleanupStack::PushL(self);
       
   102     self->ConstructL(aConstructionParams);
       
   103     CleanupStack::Pop(self);
       
   104     return self;
       
   105     }
       
   106 
       
   107 // Destructor
       
   108 CPosLmDbManPluginStore::~CPosLmDbManPluginStore()
       
   109     {
       
   110     iPlugins.ResetAndDestroy();
       
   111     }
       
   112 
       
   113 
       
   114 // ---------------------------------------------------------
       
   115 // CPosLmDbManPluginStore::GetInstanceL
       
   116 //
       
   117 // (other items were commented in a header).
       
   118 // ---------------------------------------------------------
       
   119 //
       
   120 CPosLmDatabaseManagerPluginBase* CPosLmDbManPluginStore::GetInstanceL(
       
   121     const TDesC& aProtocol)
       
   122     {
       
   123     TBool found = EFalse;
       
   124     TInt count = iPlugins.Count();
       
   125     TInt index;
       
   126 
       
   127     for (index = 0; index < count && !found; index++)
       
   128         {
       
   129         if (aProtocol == iPlugins[index]->Instance()->Protocol())
       
   130             {
       
   131             found = ETrue;
       
   132             }
       
   133         }
       
   134     if (!found)
       
   135         {
       
   136         User::Leave(KErrNotSupported);
       
   137         }
       
   138     return iPlugins[--index]->Instance();
       
   139     }
       
   140 
       
   141 // ---------------------------------------------------------
       
   142 // CPosLmDbManPluginStore::NumberOfInstances
       
   143 //
       
   144 // (other items were commented in a header).
       
   145 // ---------------------------------------------------------
       
   146 //
       
   147 TInt CPosLmDbManPluginStore::NumberOfInstances() const
       
   148     {
       
   149     return iPlugins.Count();
       
   150     }
       
   151 
       
   152 // ---------------------------------------------------------
       
   153 // CPosLmDbManPluginStore::GetInstanceAt
       
   154 //
       
   155 // (other items were commented in a header).
       
   156 // ---------------------------------------------------------
       
   157 //
       
   158 CPosLmDatabaseManagerPluginBase* CPosLmDbManPluginStore::GetInstanceAt(
       
   159     TInt aIndex)
       
   160     {
       
   161     return iPlugins[aIndex]->Instance();
       
   162     }
       
   163 
       
   164 
       
   165 // End of File