predictivesearch/PcsServer/src/CPcsSession.cpp
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     1 /*
       
     2 * Copyright (c) 2007 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:  PCS Session class
       
    15 *
       
    16 */
       
    17 
       
    18 // INCLUDE FILES
       
    19 #include <e32cmn.h>
       
    20 #include <s32mem.h>
       
    21 #include <e32debug.h>
       
    22 #include <utf.h>
       
    23 
       
    24 #include "CPcsDefs.h"
       
    25 #include "CPcsServer.h"
       
    26 #include "CPcsSession.h"
       
    27 #include "CPsClientData.h"
       
    28 #include "CPsQuery.h"
       
    29 #include "CPcsPluginInterface.h"
       
    30 #include "CPcsDebug.h"
       
    31 
       
    32 // ============================== MEMBER FUNCTIONS ============================
       
    33 
       
    34 // ----------------------------------------------------------------------------
       
    35 // CPcsSession::NewL
       
    36 // Two Phase Construction
       
    37 // ----------------------------------------------------------------------------
       
    38 CPcsSession* CPcsSession::NewL(CPcsServer* aServer)
       
    39 {
       
    40     PRINT ( _L("Enter CPcsSession::NewL") );
       
    41 
       
    42     CPcsSession* self= new (ELeave) CPcsSession(aServer);
       
    43     CleanupStack::PushL(self);
       
    44     self->ConstructL();
       
    45     CleanupStack::Pop(); // self
       
    46 
       
    47     PRINT ( _L("End CPcsSession::NewL") );
       
    48 
       
    49     return self;
       
    50 }
       
    51 
       
    52 // ----------------------------------------------------------------------------
       
    53 // CPcsSession::CPcsSession
       
    54 // Construtor
       
    55 // ----------------------------------------------------------------------------
       
    56 CPcsSession::CPcsSession( CPcsServer* aServer ) :iServer(aServer)
       
    57 {
       
    58 	PRINT ( _L("Enter CPcsSession::CPcsSession") );
       
    59 	PRINT ( _L("End CPcsSession::CPcsSession") );
       
    60 }
       
    61 
       
    62 // ----------------------------------------------------------------------------
       
    63 // CPcsSession::ConstructL
       
    64 // Second phase constructor
       
    65 // ----------------------------------------------------------------------------
       
    66 void CPcsSession::ConstructL()
       
    67 {
       
    68 	PRINT ( _L("Enter CPcsSession::ConstructL") );
       
    69 
       
    70 	iBufferOverFlow = EFalse;
       
    71 
       
    72 	iSettings = CPsSettings::NewL();
       
    73 
       
    74 	PRINT ( _L("End CPcsSession::ConstructL") );
       
    75 }
       
    76 
       
    77 // ----------------------------------------------------------------------------
       
    78 // CPcsSession::CPcsSession
       
    79 // Destructor
       
    80 // ----------------------------------------------------------------------------
       
    81 CPcsSession::~CPcsSession()
       
    82 {
       
    83 	PRINT ( _L("Enter CPcsSession::~CPcsSession") );
       
    84 
       
    85 	if ( iSettings )
       
    86 	{
       
    87 		delete iSettings;
       
    88 		iSettings = NULL;
       
    89 	}
       
    90 	
       
    91 	delete iDes;
       
    92 
       
    93 	PRINT ( _L("End CPcsSession::~CPcsSession") );
       
    94 }
       
    95 
       
    96 // ----------------------------------------------------------------------------
       
    97 // CPcsSession::ServiceL
       
    98 //
       
    99 // ----------------------------------------------------------------------------
       
   100 void CPcsSession::ServiceL(const RMessage2& aMessage)
       
   101 {
       
   102 	PRINT ( _L("Enter CPcsSession::ServiceL") );
       
   103 
       
   104 	TInt errStatus = KErrNone;
       
   105 
       
   106 	// Do the service
       
   107 	TRAP ( errStatus, DoServiceL(aMessage) );
       
   108 
       
   109     // Check the error status returned
       
   110     if ( errStatus != KErrNone )
       
   111     {
       
   112     	aMessage.Complete(errStatus);
       
   113     }
       
   114 
       
   115     PRINT ( _L("End CPcsSession::ServiceL") );
       
   116 }
       
   117 
       
   118 // ----------------------------------------------------------------------------
       
   119 // CPcsSession::DoServiceL
       
   120 //
       
   121 // ----------------------------------------------------------------------------
       
   122 void CPcsSession::DoServiceL(const RMessage2& aMessage)
       
   123 {
       
   124 	PRINT ( _L("Enter CPcsSession::DoServiceL") );
       
   125 
       
   126     switch ( aMessage.Function() )
       
   127     {
       
   128     	case ESearchSettings:
       
   129     	    PRINT ( _L("Received function ESearchSettings") );
       
   130     	    SetSearchSettingsL(aMessage);
       
   131     	    break;
       
   132 
       
   133     	case ESearch:
       
   134     	    PRINT ( _L("Received function ESearch") );
       
   135      	    GetAsyncPcsResultsL(aMessage);
       
   136     	    break;
       
   137 
       
   138     	case ECancelSearch:
       
   139     	    PRINT ( _L("Received function ECancelSearch") );
       
   140     	    iBufferOverFlow = EFalse;
       
   141             delete iDes;
       
   142             iDes = NULL;
       
   143     	    aMessage.Complete(ECancelComplete);
       
   144     	    break;
       
   145 
       
   146     	case ESearchInput:
       
   147 	    	PRINT ( _L("Received function ESearchInput") );
       
   148      	    SearchInputL(aMessage);
       
   149     	    break;
       
   150     	    
       
   151         case ESearchMatchString:
       
   152             PRINT ( _L("Received function ESearchMatchString") );
       
   153             SearchMatchStringL(aMessage);
       
   154             break;    	    
       
   155 
       
   156     	case ELangSupport:
       
   157 			PRINT ( _L("Received function ELangSupport") );
       
   158 			IsLanguageSupportedL(aMessage);
       
   159 			break;
       
   160 
       
   161     	case EGetDataOrder:
       
   162 			PRINT ( _L("Received function EGetDataOrder") );
       
   163 			GetDataOrderL(aMessage);
       
   164 			break;
       
   165 
       
   166     	case EGetSortOrder:
       
   167 			PRINT ( _L("Received function EGetSortOrder") );
       
   168 			GetSortOrderL(aMessage);
       
   169 			break;
       
   170 
       
   171         case ESetSortOrder:
       
   172 			PRINT ( _L("Received function ESetSortOrder") );
       
   173 			ChangeSortOrderL(aMessage);
       
   174 			break;
       
   175 
       
   176 	    case EShutdown:
       
   177 		    PRINT ( _L("Received function EShutdown") );
       
   178 			ShutdownServerL(aMessage);
       
   179 			break;
       
   180     }
       
   181 
       
   182 	PRINT ( _L("End CPcsSession::DoServiceL") );
       
   183 
       
   184 	return;
       
   185 }
       
   186 // ----------------------------------------------------------------------------
       
   187 // CPcsSession::ServiceError
       
   188 //
       
   189 // ----------------------------------------------------------------------------
       
   190 void CPcsSession::ServiceError(const RMessage2& aMessage, TInt aError)
       
   191 {
       
   192 	PRINT ( _L("Enter CPcsSession::ServiceError") );
       
   193 
       
   194 	aMessage.Complete(aError);
       
   195 
       
   196 	PRINT ( _L("End CPcsSession::ServiceError") );
       
   197 }
       
   198 
       
   199 
       
   200 // ----------------------------------------------------------------------------
       
   201 // CPcsSession::SetSearchSettings
       
   202 //
       
   203 // ----------------------------------------------------------------------------
       
   204 void CPcsSession::SetSearchSettingsL(const RMessage2& aMessage)
       
   205 {
       
   206 	PRINT ( _L("Enter CPcsSession::SetSearchSettingsL") );
       
   207 
       
   208 	// Read search settings from the message
       
   209 	HBufC8* searchSettings = HBufC8::NewLC(KBufferMaxLen);
       
   210 
       
   211 	TPtr8 searchSettingsPtr(searchSettings->Des());
       
   212 	aMessage.ReadL(0, searchSettingsPtr);
       
   213 
       
   214 	// Stream over the buffer
       
   215 	RDesReadStream searchSettingsStream(searchSettingsPtr);
       
   216 	searchSettingsStream.PushL();
       
   217 
       
   218     if ( iSettings )
       
   219     {
       
   220     	delete iSettings;
       
   221     	iSettings = NULL;
       
   222     }
       
   223 
       
   224     iSettings = CPsSettings::NewL();
       
   225 
       
   226 	iSettings->InternalizeL(searchSettingsStream);
       
   227 
       
   228 	// searchSettingsStream, searchSettings
       
   229 	CleanupStack::PopAndDestroy(2, searchSettings);
       
   230 
       
   231 	aMessage.Complete(KErrNone);
       
   232 
       
   233 	PRINT ( _L("End CPcsSession::SetSearchSettingsL") );
       
   234 }
       
   235 
       
   236 // ----------------------------------------------------------------------------
       
   237 // CPcsSession::GetAsyncPcsResultsL
       
   238 //
       
   239 // ----------------------------------------------------------------------------
       
   240 void CPcsSession::GetAsyncPcsResultsL(const RMessage2& aMessage)
       
   241 {
       
   242     __LATENCY_MARK ( _L("CPcsSession::GetAsyncPcsResultsL") );
       
   243     PRINT ( _L("Enter CPcsSession::GetAsyncPcsResultsL") );
       
   244 
       
   245     if ( iBufferOverFlow == EFalse )
       
   246     {
       
   247         // -------------------------------------------------------------
       
   248 
       
   249 	    // Read search query from the message
       
   250 	    HBufC8* searchQuery = HBufC8::NewLC(KBufferMaxLen);
       
   251 
       
   252 	    TPtr8 searchQueryPtr(searchQuery->Des());
       
   253         aMessage.ReadL(0, searchQueryPtr);
       
   254 
       
   255 	    // Stream over the buffer
       
   256 	    RDesReadStream searchQueryStream(searchQueryPtr);
       
   257 	    searchQueryStream.PushL();
       
   258 
       
   259 	    // Query object
       
   260 	    CPsQuery* psQuery = CPsQuery::NewL();
       
   261 
       
   262 	    psQuery->InternalizeL(searchQueryStream);
       
   263 
       
   264 	    // searchQueryStream, searchQuery
       
   265 	    CleanupStack::PopAndDestroy(2, searchQuery);
       
   266 
       
   267 	    // -------------------------------------------------------------
       
   268 
       
   269 		// Dynamic data buffer
       
   270 	    CBufFlat* buf = CBufFlat::NewL(KBufferMaxLen);
       
   271 	    CleanupStack::PushL(buf);
       
   272 
       
   273 	    // Stream over the buffer
       
   274 	    RBufWriteStream stream(*buf);
       
   275 	    stream.PushL();
       
   276 
       
   277         RPointerArray<CPsClientData>  searchResults;
       
   278 	    RPointerArray<CPsPattern>     searchSeqs;
       
   279 
       
   280 
       
   281 		iServer->PluginInterface()->PerformSearchL(*iSettings,
       
   282 		                                           *psQuery,
       
   283 		                                           searchResults,
       
   284 		                                           searchSeqs);
       
   285 
       
   286         // Write the number of contacts
       
   287 	    stream.WriteInt32L(searchResults.Count());
       
   288 
       
   289 	    // Write the contacts
       
   290 	    for ( int i = 0; i < searchResults.Count(); i++ )
       
   291 	    {
       
   292 	        searchResults[i]->ExternalizeL(stream);
       
   293 	    }
       
   294 
       
   295 	    // Write the number of char seqs
       
   296 	    stream.WriteInt32L(searchSeqs.Count());
       
   297 
       
   298 	    // Write the seqs
       
   299 	    for ( int j = 0; j < searchSeqs.Count(); j++ )
       
   300 	    {
       
   301 	        searchSeqs[j]->ExternalizeL(stream);
       
   302 	    }
       
   303 
       
   304 	    // Cleanup
       
   305 	    searchResults.ResetAndDestroy();
       
   306 	    searchSeqs.ResetAndDestroy();
       
   307 	    delete psQuery;
       
   308 
       
   309         // Results are already packed in the stream
       
   310         stream.CommitL();
       
   311 
       
   312         // Create a heap descriptor from the buffer
       
   313 	    iDes = HBufC8::NewL(buf->Size());
       
   314 	    TPtr8 ptr(iDes->Des());
       
   315 	    buf->Read(0, ptr, buf->Size());
       
   316 
       
   317 	    CleanupStack::PopAndDestroy(2, buf); // buf, stream
       
   318     }
       
   319 
       
   320     TInt rcevdBufferSize = aMessage.GetDesMaxLength(1);
       
   321     User::LeaveIfNull( iDes );
       
   322     TInt reqdBufferSize  = iDes->Size();
       
   323 
       
   324     PRINT1 ( _L("Received buffer size = %d"), rcevdBufferSize );
       
   325     PRINT1 ( _L("Required buffer size = %d"), reqdBufferSize );
       
   326 
       
   327     // If the received buffer size from Client API is less than
       
   328     // the required buffer size write the required buffer size
       
   329     // and return.
       
   330     if ( rcevdBufferSize < reqdBufferSize )
       
   331     {
       
   332         PRINT ( _L("In-adequate buffer received") );
       
   333         PRINT ( _L("Packing the required buffer size in response") );
       
   334 
       
   335     	TPckgC<TInt> bufferSizePackage(reqdBufferSize);
       
   336     	aMessage.WriteL(1, bufferSizePackage);
       
   337     	aMessage.Complete(KErrOverflow);
       
   338 
       
   339     	iBufferOverFlow = ETrue;
       
   340     }
       
   341     else
       
   342     {
       
   343         PRINT ( _L("Adequate buffer received") );
       
   344         PRINT ( _L("Packing the results in response") );
       
   345 
       
   346 		aMessage.Write(1, *iDes);
       
   347 		aMessage.Complete(ESearchComplete);
       
   348 
       
   349 		iBufferOverFlow = EFalse;
       
   350     	delete iDes;
       
   351         iDes = NULL;
       
   352     }
       
   353 
       
   354 
       
   355     PRINT ( _L("End CPcsSession::GetAsyncPcsResultsL") );
       
   356 
       
   357     __LATENCY_MARKEND ( _L("CPcsSession::GetAsyncPcsResultsL") );
       
   358 
       
   359 }
       
   360 
       
   361 // ----------------------------------------------------------------------------
       
   362 // CPcsSession::SearchInputL
       
   363 //
       
   364 // ----------------------------------------------------------------------------
       
   365 void CPcsSession::SearchInputL(const RMessage2& aMessage)
       
   366 {
       
   367     PRINT ( _L("Enter CPcsSession::SearchInputL") );
       
   368     __LATENCY_MARK ( _L("CPcsSession::SearchInputL") );
       
   369 
       
   370     // -------------------------------------------------------------
       
   371 
       
   372     // Read search query from the message
       
   373     HBufC8* searchQuery = HBufC8::NewLC(KBufferMaxLen);
       
   374 
       
   375     TPtr8 searchQueryPtr(searchQuery->Des());
       
   376     aMessage.ReadL(0, searchQueryPtr);
       
   377 
       
   378     // Stream over the buffer
       
   379     RDesReadStream searchQueryStream(searchQueryPtr);
       
   380     searchQueryStream.PushL();
       
   381 
       
   382     // Query object
       
   383     CPsQuery* psQuery = CPsQuery::NewL();
       
   384     psQuery->InternalizeL(searchQueryStream);
       
   385 
       
   386     // searchQueryStream, searchQuery
       
   387     CleanupStack::PopAndDestroy(2, searchQuery);
       
   388 
       
   389     // -------------------------------------------------------------
       
   390 
       
   391     // Read search data from the message
       
   392     HBufC8* searchData = HBufC8::NewLC(KBufferMaxLen);
       
   393 
       
   394     TPtr8 searchDataPtr(searchData->Des());
       
   395     aMessage.ReadL(1, searchDataPtr);
       
   396 
       
   397     // Stream over the buffer
       
   398     RDesReadStream searchDataStream(searchDataPtr);
       
   399     searchDataStream.PushL();
       
   400 
       
   401     // Data to be searched
       
   402     // Read data size
       
   403 	TUint16 szData = searchDataStream.ReadUint16L();
       
   404     HBufC* data =  HBufC::NewL(searchDataStream, szData);
       
   405 
       
   406     // searchQueryStream, searchQuery
       
   407     CleanupStack::PopAndDestroy(2, searchData);
       
   408 
       
   409     // -------------------------------------------------------------
       
   410 
       
   411 	// Dynamic data buffer
       
   412     CBufFlat* buf = CBufFlat::NewL(KBufferMaxLen);
       
   413     CleanupStack::PushL(buf);
       
   414 
       
   415     // Stream over the buffer
       
   416     RBufWriteStream stream(*buf);
       
   417     stream.PushL();
       
   418 
       
   419     // To hold the matches
       
   420     RPointerArray<TDesC> searchSeqs;
       
   421 
       
   422     // To hold matched location
       
   423     RArray<TPsMatchLocation> sequenceLoc;
       
   424 
       
   425 
       
   426 	iServer->PluginInterface()->SearchInputL(*psQuery,
       
   427 	                                         *data,
       
   428 	                                         searchSeqs,
       
   429 	                                         sequenceLoc);
       
   430 
       
   431 
       
   432     // Delete the search query and search data
       
   433     delete psQuery;
       
   434     delete data;
       
   435 
       
   436     // --------- write match sequence ---------------------------
       
   437     // Write the number of match seqs
       
   438     stream.WriteUint16L(searchSeqs.Count());
       
   439 
       
   440     // Write the matches
       
   441     for ( int j = 0; j < searchSeqs.Count(); j++ )
       
   442     {
       
   443         TInt length = searchSeqs[j]->Length();
       
   444 
       
   445         // Write the char sequence length
       
   446         stream.WriteUint16L(length);
       
   447 
       
   448         // Write the char sequence
       
   449     	stream << *searchSeqs[j];
       
   450     }
       
   451 
       
   452     // --------- write match sequence location ------------------
       
   453     // write number of sequnece
       
   454     stream.WriteUint16L(sequenceLoc.Count());
       
   455 
       
   456     // write each structure element
       
   457     for(TInt k = 0; k < sequenceLoc.Count(); k++)
       
   458     {
       
   459     	TPsMatchLocation temp = sequenceLoc[k];
       
   460 
       
   461     	// write the starting index
       
   462     	stream.WriteUint16L(temp.index);
       
   463 
       
   464     	// write the length of match
       
   465     	stream.WriteUint16L(temp.length);
       
   466 
       
   467     	//write directionality of string
       
   468     	stream.WriteUint16L(temp.direction);
       
   469 
       
   470     }
       
   471 
       
   472     // Reset search seqs
       
   473     searchSeqs.ResetAndDestroy();
       
   474     sequenceLoc.Reset();
       
   475     sequenceLoc.Close();
       
   476 
       
   477     stream.CommitL();
       
   478 
       
   479     // Create a heap descriptor from the buffer
       
   480     HBufC8* des = HBufC8::NewLC(buf->Size());
       
   481     TPtr8 ptr(des->Des());
       
   482     buf->Read(0, ptr, buf->Size());
       
   483 
       
   484 	aMessage.Write(2, *des);
       
   485 	aMessage.Complete(KErrNone);
       
   486 	CleanupStack::PopAndDestroy(3, buf); // buf, stream, des
       
   487 	
       
   488     PRINT ( _L("End CPcsSession::SearchInputL") );
       
   489     __LATENCY_MARKEND ( _L("CPcsSession::SearchInputL") );
       
   490 
       
   491 }
       
   492 
       
   493 // ----------------------------------------------------------------------------
       
   494 // CPcsSession::SearchMatchStringL
       
   495 //
       
   496 // ----------------------------------------------------------------------------
       
   497 void CPcsSession::SearchMatchStringL(const RMessage2& aMessage)
       
   498 {
       
   499     PRINT ( _L("Enter CPcsSession::SearchMatchStringL") );
       
   500     __LATENCY_MARK ( _L("CPcsSession::SearchMatchStringL") );
       
   501 
       
   502     // -------------------------------------------------------------
       
   503 
       
   504     // Read search query from the message
       
   505     HBufC8* searchQuery = HBufC8::NewLC(KBufferMaxLen);
       
   506 
       
   507     TPtr8 searchQueryPtr(searchQuery->Des());
       
   508     aMessage.ReadL(0, searchQueryPtr);
       
   509 
       
   510     // Stream over the buffer
       
   511     RDesReadStream searchQueryStream(searchQueryPtr);
       
   512     searchQueryStream.PushL();
       
   513 
       
   514     // Query object
       
   515     CPsQuery* psQuery = CPsQuery::NewL();
       
   516     psQuery->InternalizeL(searchQueryStream);
       
   517 
       
   518     // searchQueryStream, searchQuery
       
   519     CleanupStack::PopAndDestroy(2, searchQuery);
       
   520 
       
   521     // -------------------------------------------------------------
       
   522 
       
   523     // Read search data from the message
       
   524     HBufC8* searchData = HBufC8::NewLC(KBufferMaxLen);
       
   525 
       
   526     TPtr8 searchDataPtr(searchData->Des());
       
   527     aMessage.ReadL(1, searchDataPtr);
       
   528 
       
   529     // Stream over the buffer
       
   530     RDesReadStream searchDataStream(searchDataPtr);
       
   531     searchDataStream.PushL();
       
   532 
       
   533     // Data to be searched
       
   534     // Read data size
       
   535     TUint16 szData = searchDataStream.ReadUint16L();
       
   536     HBufC* data =  HBufC::NewL(searchDataStream, szData);
       
   537 
       
   538     // searchQueryStream, searchQuery
       
   539     CleanupStack::PopAndDestroy(2, searchData);
       
   540 
       
   541     // -------------------------------------------------------------
       
   542 
       
   543     // Dynamic data buffer
       
   544     CBufFlat* buf = CBufFlat::NewL(KBufferMaxLen);
       
   545     CleanupStack::PushL(buf);
       
   546 
       
   547     // Create a heap descriptor from the buffer
       
   548     HBufC* des = HBufC::NewLC(KBufferMaxLen);
       
   549     TPtr ptr(des->Des());
       
   550     
       
   551     iServer->PluginInterface()->SearchMatchStringL(*psQuery,
       
   552                                              *data,
       
   553                                              ptr);
       
   554 
       
   555 
       
   556     // Delete the search query and search data
       
   557     delete psQuery;
       
   558     delete data;
       
   559 
       
   560     aMessage.Write(2, *des);
       
   561     aMessage.Complete(KErrNone);
       
   562     CleanupStack::PopAndDestroy(2, buf); // buf, des
       
   563     
       
   564     PRINT ( _L("End CPcsSession::SearchMatchStringL") );
       
   565     __LATENCY_MARKEND ( _L("CPcsSession::SearchMatchStringL") );
       
   566 
       
   567 }
       
   568 
       
   569 // ----------------------------------------------------------------------------
       
   570 // CPcsSession::IsLanguageSupportedL
       
   571 //
       
   572 // ----------------------------------------------------------------------------
       
   573 void CPcsSession::IsLanguageSupportedL(const RMessage2& aMessage)
       
   574 {
       
   575 	PRINT ( _L("Enter CPcsSession::IsLanguageSupportedL") );
       
   576 
       
   577 	// --------------------------------------------------------------
       
   578 
       
   579     // Read TLanguage from the message
       
   580     HBufC8* buffer = HBufC8::NewLC(KBufferMaxLen);
       
   581 
       
   582     TPtr8 bufferPtr(buffer->Des());
       
   583     aMessage.ReadL(0, bufferPtr);
       
   584 
       
   585     // Stream over the buffer
       
   586     RDesReadStream stream(bufferPtr);
       
   587     stream.PushL();
       
   588 
       
   589     // Read language ID
       
   590    	TUint32 languageId = stream.ReadUint32L();
       
   591 
       
   592     // stream, buffer
       
   593     CleanupStack::PopAndDestroy(2, buffer);
       
   594 
       
   595     // --------------------------------------------------------------
       
   596 
       
   597     // Get is language supported from the algorithm
       
   598     TBool flag = iServer->PluginInterface()->IsLanguageSupportedL(languageId);
       
   599 
       
   600     // --------------------------------------------------------------
       
   601     // Dynamic data buffer
       
   602     CBufFlat* buffer1 = CBufFlat::NewL(KBufferMaxLen);
       
   603     CleanupStack::PushL(buffer1);
       
   604 
       
   605     // Stream over the buffer
       
   606     RBufWriteStream stream1(*buffer1);
       
   607     stream1.PushL();
       
   608 
       
   609     // Pack the result back in response
       
   610 	stream1.WriteUint8L(flag);
       
   611 
       
   612     stream1.CommitL();
       
   613 
       
   614     // --------------------------------------------------------------
       
   615 
       
   616     // Create a heap descriptor from the buffer
       
   617     HBufC8* des = HBufC8::NewLC(buffer1->Size());
       
   618     TPtr8 ptr(des->Des());
       
   619     buffer1->Read(0, ptr, buffer1->Size());
       
   620 
       
   621 	aMessage.Write(1, *des);
       
   622 	aMessage.Complete(KErrNone);
       
   623 	CleanupStack::PopAndDestroy(3, buffer1); // buffer1, stream1, des
       
   624 
       
   625 	PRINT ( _L("End CPcsSession::IsLanguageSupportedL") );
       
   626 }
       
   627 
       
   628 
       
   629 // ----------------------------------------------------------------------------
       
   630 // CPcsSession::GetDataOrderL
       
   631 //
       
   632 // ----------------------------------------------------------------------------
       
   633 void CPcsSession::GetDataOrderL(const RMessage2& aMessage)
       
   634 {
       
   635     PRINT ( _L("Enter CPcsSession::GetDataOrderL") );
       
   636 
       
   637     // --------------------------------------------------------------
       
   638 
       
   639     // Read URI from the message
       
   640     HBufC8* buffer = HBufC8::NewLC(KBufferMaxLen);
       
   641 
       
   642     TPtr8 bufferPtr(buffer->Des());
       
   643     aMessage.ReadL(0, bufferPtr);
       
   644 
       
   645     // Stream over the buffer
       
   646     RDesReadStream stream(bufferPtr);
       
   647     stream.PushL();
       
   648 
       
   649 	// Size of URI
       
   650 	TInt uriSize = stream.ReadUint16L();
       
   651 
       
   652     // URI
       
   653     HBufC* uri = HBufC::NewLC(stream, uriSize);
       
   654 
       
   655     
       
   656 
       
   657     // --------------------------------------------------------------
       
   658 
       
   659     // Get the data order
       
   660     RArray<TInt> dataOrder;
       
   661     iServer->PluginInterface()->GetDataOrderL(*uri, dataOrder);
       
   662     
       
   663     // uri, stream, buffer
       
   664     CleanupStack::PopAndDestroy(3, buffer);
       
   665     
       
   666     CleanupClosePushL(dataOrder);
       
   667     
       
   668     // --------------------------------------------------------------
       
   669 
       
   670     // Dynamic data buffer
       
   671     CBufFlat* buffer1 = CBufFlat::NewL(KBufferMaxLen);
       
   672     CleanupStack::PushL(buffer1);
       
   673 
       
   674     // Stream over the buffer
       
   675     RBufWriteStream stream1(*buffer1);
       
   676     stream1.PushL();
       
   677 
       
   678     // Pack the data order fields
       
   679 	TInt fieldCount = dataOrder.Count();
       
   680 	stream1.WriteUint16L(fieldCount);
       
   681 
       
   682 	// Pack the fields
       
   683 	for ( int i = 0; i < fieldCount; i++ )
       
   684 	{
       
   685 		stream1.WriteUint16L(dataOrder[i]);
       
   686 	}
       
   687 
       
   688     stream1.CommitL();
       
   689 
       
   690     // --------------------------------------------------------------
       
   691 
       
   692     // Create a heap descriptor from the buffer
       
   693     HBufC8* des = HBufC8::NewLC(buffer1->Size());
       
   694     TPtr8 ptr(des->Des());
       
   695     buffer1->Read(0, ptr, buffer1->Size());
       
   696 
       
   697 	aMessage.Write(1, *des);
       
   698 	aMessage.Complete(KErrNone);
       
   699 	CleanupStack::PopAndDestroy(4, &dataOrder); // des, stream1, buffer1, dataOrder
       
   700 
       
   701     PRINT ( _L("End CPcsSession::GetDataOrderL") );
       
   702 }
       
   703 
       
   704 // ----------------------------------------------------------------------------
       
   705 // CPcsSession::GetSortOrderL
       
   706 //
       
   707 // ----------------------------------------------------------------------------
       
   708 void CPcsSession::GetSortOrderL(const RMessage2& aMessage)
       
   709 {
       
   710     PRINT ( _L("Enter CPcsSession::GetSortOrderL") );
       
   711 
       
   712     // --------------------------------------------------------------
       
   713 
       
   714     // Read URI from the message
       
   715     HBufC8* buffer = HBufC8::NewLC(KBufferMaxLen);
       
   716 
       
   717     TPtr8 bufferPtr(buffer->Des());
       
   718     aMessage.ReadL(0, bufferPtr);
       
   719 
       
   720     // Stream over the buffer
       
   721     RDesReadStream stream(bufferPtr);
       
   722     stream.PushL();
       
   723 
       
   724 	// Size of URI
       
   725 	TInt uriSize = stream.ReadUint16L();
       
   726 
       
   727     // URI
       
   728     HBufC* uri = HBufC::NewLC(stream, uriSize);
       
   729 
       
   730     // --------------------------------------------------------------
       
   731 
       
   732     // Set the sort order
       
   733     RArray<TInt> sortOrder;
       
   734     iServer->PluginInterface()->GetSortOrderL(*uri, sortOrder);
       
   735     
       
   736     // uri, stream, buffer
       
   737     CleanupStack::PopAndDestroy(3, buffer);
       
   738     
       
   739     CleanupClosePushL( sortOrder );
       
   740     
       
   741     // --------------------------------------------------------------
       
   742 
       
   743     // Dynamic data buffer
       
   744     CBufFlat* buffer1 = CBufFlat::NewL(KBufferMaxLen);
       
   745     CleanupStack::PushL(buffer1);
       
   746 
       
   747     // Stream over the buffer
       
   748     RBufWriteStream stream1(*buffer1);
       
   749     stream1.PushL();
       
   750 
       
   751     // Pack the data order fields
       
   752 	TInt fieldCount = sortOrder.Count();
       
   753 	stream1.WriteUint16L(fieldCount);
       
   754 
       
   755 	// Pack the fields
       
   756 	for ( int i = 0; i < fieldCount; i++ )
       
   757 	{
       
   758 		stream1.WriteUint16L(sortOrder[i]);
       
   759 	}
       
   760 
       
   761     stream1.CommitL();
       
   762 
       
   763     // --------------------------------------------------------------
       
   764 
       
   765     // Create a heap descriptor from the buffer
       
   766     HBufC8* des = HBufC8::NewLC(buffer1->Size());
       
   767     TPtr8 ptr(des->Des());
       
   768     buffer1->Read(0, ptr, buffer1->Size());
       
   769 
       
   770 	aMessage.Write(1, *des);
       
   771 	aMessage.Complete(KErrNone);
       
   772 	CleanupStack::PopAndDestroy(4, &sortOrder); // des, buffer1, stream1, sortOrder
       
   773 
       
   774     PRINT ( _L("End CPcsSession::GetSortOrderL") );
       
   775 }
       
   776 
       
   777 // ----------------------------------------------------------------------------
       
   778 // CPcsSession::ChangeSortOrderL
       
   779 //
       
   780 // ----------------------------------------------------------------------------
       
   781 void CPcsSession::ChangeSortOrderL(const RMessage2& aMessage)
       
   782 {
       
   783     PRINT ( _L("Enter CPcsSession::ChangeSortOrderL") );
       
   784 
       
   785     // --------------------------------------------------------------
       
   786 
       
   787     // Read URI from the message
       
   788     HBufC8* buffer = HBufC8::NewLC(KBufferMaxLen);
       
   789 
       
   790     TPtr8 bufferPtr(buffer->Des());
       
   791     aMessage.ReadL(0, bufferPtr);
       
   792 
       
   793     // Stream over the buffer
       
   794     RDesReadStream stream(bufferPtr);
       
   795     stream.PushL();
       
   796 
       
   797 	// Size of URI
       
   798 	TInt uriSize = stream.ReadUint16L();
       
   799 
       
   800     // URI
       
   801     HBufC* uri = HBufC::NewLC(stream, uriSize);
       
   802     CleanupStack::Pop(); // uri
       
   803 
       
   804     // Number of data fields
       
   805     TInt fieldCount = stream.ReadUint16L();
       
   806     RArray<TInt> sortOrder;
       
   807 
       
   808     for ( int i = 0; i < fieldCount; i++ )
       
   809     {
       
   810     	sortOrder.Append(stream.ReadUint16L());
       
   811     }
       
   812 
       
   813     // stream, buffer
       
   814     CleanupStack::PopAndDestroy(2, buffer);
       
   815 
       
   816     // --------------------------------------------------------------
       
   817 
       
   818     // Set the sort order
       
   819     iServer->PluginInterface()->ChangeSortOrderL(*uri, sortOrder);
       
   820 
       
   821     delete uri;
       
   822     sortOrder.Reset();
       
   823 
       
   824     // --------------------------------------------------------------
       
   825 
       
   826 	aMessage.Complete(KErrNone);
       
   827 
       
   828     PRINT ( _L("End CPcsSession::ChangeSortOrderL") );
       
   829 }
       
   830 
       
   831 // ----------------------------------------------------------------------------
       
   832 // CPcsSession::ShutdownServerL
       
   833 //
       
   834 // ----------------------------------------------------------------------------
       
   835 void CPcsSession::ShutdownServerL(const RMessage2& aMessage)
       
   836 {
       
   837 	PRINT ( _L("Enter CPcsSession::ShutdownServerL") );
       
   838 
       
   839 	aMessage.Complete(KErrNone);
       
   840 	CActiveScheduler::Stop();
       
   841 
       
   842 	PRINT ( _L("End CPcsSession::ShutdownServerL") );
       
   843 }