230             break;

   231 			

   232 		case EGetConversationFromMessageId:

   233             PRINT ( _L("Received function EGetConversationFromMessageId") )

   234             GetConversationFromMessageIdL(aMessage);

  1413 

  1414 // ----------------------------------------------------------------------------

  1415 // GetConversationFromMessageIdL

  1416 // ----------------------------------------------------------------------------

  1417 void CCsSession::GetConversationFromMessageIdL(const RMessage2& aMessage)

  1418     {

  1419     // create a new buffer for writing into stream

  1420     CBufFlat* buf = CBufFlat::NewL(KBigBuffer);

  1421     CleanupStack::PushL(buf);

  1422 

  1423     RBufWriteStream writeStream(*buf);

  1424     writeStream.PushL();

  1425 

  1426     // Get the message id

  1427     TInt messageId = aMessage.Int0();

  1428     CCsConversationCache* cache = iServer->ConversationCacheInterface();

  1429     CCsClientConversation* conversation = cache->GetConversationFromMessageIdL(messageId);

  1430     

  1431     // if no conversation exists for given message-id, 

  1432     // create a dummy conversation and complete response

  1433     if(conversation == NULL)

  1434     {

  1435         //create dummy conversation

  1436         conversation = CCsClientConversation::NewL();

  1437         CleanupStack::PushL(conversation);

  1438         conversation->SetConversationEntryId(-1);

  1439         CCsConversationEntry* entry = CCsConversationEntry::NewL();

  1440 		CleanupStack::PushL(entry);

  1441         entry->SetEntryId(-1);

  1442         conversation->SetConversationEntryL(entry); // clone

  1443 		CleanupStack::PopAndDestroy(entry);

  1444     }

  1445     else

  1446     {

  1447         CleanupStack::PushL(conversation);

  1448     }

  1449 

  1450     // Externalize 

  1451     conversation->ExternalizeL(writeStream);

  1452     

  1453     // Results are already packed in the stream

  1454     writeStream.CommitL();

  1455     

  1456     // Create a heap descriptor from the buffer

  1457     HBufC8* des = HBufC8::NewLC(buf->Size());

  1458     CleanupStack::Pop(des);

  1459     TPtr8 ptr(des->Des());

  1460     buf->Read(0, ptr, buf->Size());

  1461     

  1462     CleanupStack::PopAndDestroy(3, buf); // conversation, writestream, buf

  1463     

  1464     aMessage.Write(1, *des);

  1465     aMessage.Complete(EGetConversationFromMessageIdComplete);

  1466     delete des;

  1467     }

  1468