phonebookengines/contactsmodel/cntsrv/src/CCntEventMsgHandler.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 10:12:17 +0200
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// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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// All rights reserved.
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// This component and the accompanying materials are made available
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// under the terms of "Eclipse Public License v1.0"
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// which accompanies this distribution, and is available
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".
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//
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// Initial Contributors:
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// Nokia Corporation - initial contribution.
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//
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// Contributors:
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//
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// Description:
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//
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/**
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 @file
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 @internalComponent
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*/
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#include "CCntMsgHandler.h"
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#include "CCntMsgHandlerFptr.h"
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#include "CCntEventMsgHandler.h"
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#include "CCntEventQueue.h"
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#include "CCntIpcCodes.h"
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#include "CCntServer.h"
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const TInt KCntEventIpcCodes[] =
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	{
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	ECntRequestEvent,
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	ECntCancelEventRequest
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	};
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CCntEventMsgHandler* CCntEventMsgHandler::NewLC(CCntSession& aSession)
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	{
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	CCntEventMsgHandler* CntEventMsgHandler = new (ELeave) CCntEventMsgHandler(aSession);
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    CleanupStack::PushL(CntEventMsgHandler);	
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    CntEventMsgHandler->ConstructL();	
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	return CntEventMsgHandler;
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	}
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CCntEventMsgHandler::CCntEventMsgHandler(CCntSession& aSession)
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:CCntMsgHandler(aSession)
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	{	
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	}
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void CCntEventMsgHandler::ConstructL()
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	{
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	iEventQueue = new (ELeave) CEventQueue;
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	}
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CCntEventMsgHandler::~CCntEventMsgHandler()
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	{
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	delete iEventQueue;
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	}
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/**
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Delegates the incoming op code to a message handling method.
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First checks if this class services the op code, it then uses the lookup table and finds 
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function pointer(to message handling method) mapped to the incoming message function (op code)
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and finally delegates the message to handling method.
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It returns KErrNotFound if op code not handled.
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*/
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TInt CCntEventMsgHandler::HandleMessageL(const RMessage2& aMessage)
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	{	
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	MsgHandlerFptr func_ptr = LookupHandlerMethodL(aMessage.Function(), KCntEventIpcCodes, sizeof(KCntEventIpcCodes)/sizeof(TInt));
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	if(func_ptr)
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		{
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		EventMsgHandlerFptr mem_func_ptr = static_cast<EventMsgHandlerFptr>(func_ptr);
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		(this->*mem_func_ptr)(aMessage);
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		return (KErrNone);
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		}
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	return (KErrNotFound);
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	}
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/**
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Message handling methods.
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*/
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void CCntEventMsgHandler::RequestEvent(const RMessage2& aMessage)
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	{
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	iEventQueue->RequestEvent(aMessage);
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	}
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void CCntEventMsgHandler::CancelEventRequest(const RMessage2& aMessage)
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	{
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	// Complete the asynchronous request sent by the client-side
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	// database event consumer (the CCntDbNotifyMonitor class).
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	iEventQueue->CancelEventRequest();
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	// Complete the cancelling request (sent to server when we got
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	// here).
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	aMessage.Complete(KErrNone);
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	}
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void CCntEventMsgHandler::QueueEvent(const TContactDbObserverEvent aEvent)
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	{
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	iEventQueue->QueueEvent(aEvent);
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	}
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