browserutilities/feedsengine/FeedsServer/Common/src/PackedFolder.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 the License "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:  Is a serialized version of CFolderItem suitable for transfer between
       
    15 *                client and server.
       
    16 *
       
    17 */
       
    18 
       
    19 #include "PackedAttributes.h"
       
    20 #include "FeedAttributes.h"
       
    21 #include "FolderAttributes.h"
       
    22 #include "PackedFolder.h"
       
    23 #include "Logger.h"
       
    24 
       
    25 
       
    26 const TInt KTokenArrayIncrementSize = 100;
       
    27 const TInt KStringTableIncrementSize = 1024;
       
    28 
       
    29 
       
    30 // -----------------------------------------------------------------------------
       
    31 // CPackedFolder::NewL
       
    32 //
       
    33 // Two-phased constructor.  Used on both the client and server.
       
    34 // -----------------------------------------------------------------------------
       
    35 //
       
    36 CPackedFolder* CPackedFolder::NewL()
       
    37     {
       
    38     CPackedFolder* self = new (ELeave) CPackedFolder(KTokenArrayIncrementSize,
       
    39             KStringTableIncrementSize);
       
    40 
       
    41     CleanupStack::PushL(self);
       
    42     self->ConstructL();
       
    43     CleanupStack::Pop();
       
    44 
       
    45     return self;
       
    46     }
       
    47 
       
    48         
       
    49 // -----------------------------------------------------------------------------
       
    50 // CPackedFolder::CPackedFolder
       
    51 //
       
    52 // C++ default constructor can NOT contain any code, that
       
    53 // might leave.  Used on both the client and server.
       
    54 // -----------------------------------------------------------------------------
       
    55 //
       
    56 CPackedFolder::CPackedFolder(TInt aTokenArrayInc, TInt aStringTableInc):
       
    57         CPacked(aTokenArrayInc, aStringTableInc), iLeakTracker(CLeakTracker::EPackedFolder)
       
    58     {
       
    59     }
       
    60         
       
    61 
       
    62 // -----------------------------------------------------------------------------
       
    63 // CPackedFolder::ConstructL
       
    64 //
       
    65 // Symbian 2nd phase constructor can leave.  Used on both the client and server.
       
    66 // -----------------------------------------------------------------------------
       
    67 //
       
    68 void CPackedFolder::ConstructL()
       
    69     {
       
    70     BaseConstructL();
       
    71     }
       
    72         
       
    73 
       
    74 // -----------------------------------------------------------------------------
       
    75 // CPackedFolder::~CPackedFolder
       
    76 //
       
    77 // Deconstructor.  Used on both the client and server.
       
    78 // -----------------------------------------------------------------------------
       
    79 //
       
    80 CPackedFolder::~CPackedFolder()
       
    81     {
       
    82     }
       
    83 
       
    84         
       
    85 // -----------------------------------------------------------------------------
       
    86 // CPackedFolder::FolderBeginsL
       
    87 //
       
    88 // Insert the begining of a folder.   Used only on the server.
       
    89 // -----------------------------------------------------------------------------
       
    90 //
       
    91 void CPackedFolder::FolderBeginsL(const TDesC& aTitle, TInt aEntryId, TInt aStatus)
       
    92     {
       
    93     TBuf16<25>  buf;
       
    94 
       
    95     InsertTokenL(EFolderTokenFolderBegin);
       
    96     AddAttributeL(EFolderAttributeTitle, aTitle);
       
    97 
       
    98     buf.AppendNum(aEntryId);
       
    99     AddAttributeL(EFolderAttributeEntryId, buf);
       
   100     
       
   101     buf.Zero();
       
   102     buf.AppendNum(aStatus);
       
   103     AddAttributeL(EFolderAttributeStatus, buf);
       
   104     
       
   105     InsertTokenL(EFolderAttributeEnd);    
       
   106     }
       
   107 
       
   108 
       
   109 // -----------------------------------------------------------------------------
       
   110 // CPackedFolder::FolderEndsL
       
   111 //
       
   112 // Insert the ending of a folder.    Used only on the server.
       
   113 // -----------------------------------------------------------------------------
       
   114 //
       
   115 void CPackedFolder::FolderEndsL()
       
   116     {
       
   117     InsertTokenL(EFolderTokenFolderEnd);
       
   118     }
       
   119 
       
   120 
       
   121 // -----------------------------------------------------------------------------
       
   122 // CPackedFolder::AddFeedL
       
   123 //
       
   124 // Insert a feed.   Used only on the server.
       
   125 // -----------------------------------------------------------------------------
       
   126 //
       
   127 void CPackedFolder::AddFeedL( const TDesC& aTitle, const TDesC& aFeedUrl, 
       
   128         const TTime& aLastUpdate, TInt aFreq, TInt aStatus,TInt aUnreadCount, TInt aEntryId, TInt aFeedId)
       
   129     {
       
   130     TBuf16<25>  buf;
       
   131     
       
   132     InsertTokenL(EFolderTokenFeed);
       
   133     AddAttributeL(EFolderAttributeTitle, aTitle);
       
   134     AddAttributeL(EFolderAttributeUrl, aFeedUrl);
       
   135     
       
   136     buf.Zero();
       
   137     buf.Format(_L("%Ld"), aLastUpdate.Int64());
       
   138     AddAttributeL(EFolderAttributeTimestamp, buf);
       
   139 
       
   140     buf.Zero();
       
   141     buf.AppendNum(aUnreadCount);
       
   142     AddAttributeL(EFolderAttributeUnreadCount, buf);
       
   143 
       
   144     buf.Zero();
       
   145     buf.AppendNum(aEntryId);
       
   146     AddAttributeL(EFolderAttributeEntryId, buf);
       
   147 
       
   148     buf.Zero();
       
   149     buf.AppendNum(aFeedId);
       
   150     AddAttributeL(EFolderAttributeFeedId, buf);
       
   151 
       
   152     buf.Zero();
       
   153     buf.AppendNum(aStatus);
       
   154     AddAttributeL(EFolderAttributeStatus, buf);
       
   155 
       
   156     buf.Zero();
       
   157     buf.AppendNum(aFreq);
       
   158     AddAttributeL(EFolderAttributeFreq, buf);
       
   159     
       
   160     InsertTokenL(EFolderAttributeEnd);    
       
   161     }
       
   162 
       
   163 
       
   164 // -----------------------------------------------------------------------------
       
   165 // CPackedFolder::ItemBeginsL
       
   166 //
       
   167 // Insert the begining of a item.   Used only on the server.
       
   168 // -----------------------------------------------------------------------------
       
   169 //
       
   170 void CPackedFolder::ItemBeginsL()
       
   171     {
       
   172     InsertTokenL(EFolderTokenItemBegin);
       
   173     }
       
   174 
       
   175 
       
   176 // -----------------------------------------------------------------------------
       
   177 // CPackedFolder::ItemEndsL
       
   178 //
       
   179 // Insert the ending of a item.   Used only on the server.
       
   180 // -----------------------------------------------------------------------------
       
   181 //
       
   182 void CPackedFolder::ItemEndsL()
       
   183     {
       
   184     InsertTokenL(EFolderTokenItemEnd);
       
   185     }
       
   186 
       
   187     
       
   188 // -----------------------------------------------------------------------------
       
   189 // CPackedFolder::DoneL
       
   190 //
       
   191 // Called when when packing is done.  Used only on the server.
       
   192 // -----------------------------------------------------------------------------
       
   193 //
       
   194 void CPackedFolder::DoneL()
       
   195     {
       
   196     iTokenArrayAsDes.Set((const TUint8*) iTokenArray, iTokenArrayLength * sizeof(TUint));
       
   197     }
       
   198 
       
   199 
       
   200 // -----------------------------------------------------------------------------
       
   201 // CPackedFolder::ExtractAttributes
       
   202 //
       
   203 // Extract the folder item's attributes
       
   204 // -----------------------------------------------------------------------------
       
   205 //
       
   206 void CPackedFolder::ExtractAttributes( TPtrC& aTitle, TPtrC& aUrl, 
       
   207         TInt& aEntryId, TInt& aFeedId, TTime& aTimestamp, TInt& aUnreadCount, TInt &aStatus, TInt& aFreq) const
       
   208     {   
       
   209     TBool  done = EFalse;
       
   210     TUint  attributeToken;
       
   211     TPtrC  attributeValue;
       
   212      
       
   213     // Set the default values.
       
   214     aTitle.Set(KNullDesC);
       
   215     aUrl.Set(KNullDesC);
       
   216     aEntryId = -1;
       
   217     aFeedId = 0;
       
   218     aTimestamp.UniversalTime();
       
   219     
       
   220     // Extract the attribute tokens.
       
   221     while (!done)
       
   222         {
       
   223         TUint  token;
       
   224             
       
   225         token = NextToken();
       
   226             
       
   227         // Extract the next attribute.
       
   228         if (token != EFolderAttributeEnd)
       
   229             {            
       
   230             // Get the attribute.
       
   231             ExtractAttributeValue(attributeToken, attributeValue);
       
   232 
       
   233             switch (attributeToken)
       
   234                 {
       
   235                 case EFolderAttributeTitle:
       
   236                     aTitle.Set(attributeValue);
       
   237                     break;
       
   238 
       
   239                 case EFolderAttributeUrl:
       
   240                     aUrl.Set(attributeValue);
       
   241                     break;
       
   242 
       
   243                 case EFolderAttributeEntryId:
       
   244                     {                        
       
   245                     TLex16  lex(attributeValue);
       
   246                       
       
   247                     lex.Val(aEntryId);
       
   248                     }
       
   249                     break;
       
   250 
       
   251                 case EFolderAttributeFeedId:
       
   252                     {                        
       
   253                     TLex16  lex(attributeValue);
       
   254                       
       
   255                     lex.Val(aFeedId);
       
   256                     }
       
   257                     break;
       
   258 
       
   259                 case EFolderAttributeTimestamp:
       
   260                     {                    
       
   261                     TLex16  lex(attributeValue);
       
   262                     TInt64  ts;
       
   263                       
       
   264                     lex.Val(ts);
       
   265                     aTimestamp = ts;
       
   266                     }
       
   267                     break;
       
   268 
       
   269                 case EFolderAttributeUnreadCount:
       
   270                     {                    
       
   271                     TLex16  lex(attributeValue);
       
   272                     TInt  unreadCount;
       
   273                       
       
   274                     lex.Val(unreadCount);
       
   275                     aUnreadCount = unreadCount;
       
   276                     }
       
   277                     break;
       
   278                 case EFolderAttributeStatus:
       
   279                     {                        
       
   280                     TLex16  lex(attributeValue);
       
   281                       
       
   282                     lex.Val(aStatus);
       
   283                     }
       
   284                     break;                    
       
   285                 case EFolderAttributeFreq:
       
   286                     {
       
   287                     TLex16  lex(attributeValue);
       
   288                     TInt  freq;
       
   289                       
       
   290                     lex.Val(freq);
       
   291                     aFreq = freq;
       
   292                     }
       
   293                     break;                    
       
   294                 }
       
   295             }
       
   296             
       
   297         // Otherwise there are no more attributes.
       
   298         else
       
   299             {
       
   300             done = ETrue;
       
   301             }
       
   302         }
       
   303     }
       
   304 
       
   305 
       
   306