datasourcemodules/networkpositioningmodule/src/requesthandler/cnetrequesthandler.cpp
changeset 36 b47902b73a93
parent 0 9cfd9a3ee49c
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/datasourcemodules/networkpositioningmodule/src/requesthandler/cnetrequesthandler.cpp	Fri Jun 04 10:34:15 2010 +0100
@@ -0,0 +1,193 @@
+// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of "Eclipse Public License v1.0"
+// which accompanies this distribution, and is available
+// at the URL "http://www.eclipse.org/legal/epl-v10.html".
+//
+// Initial Contributors:
+// Nokia Corporation - initial contribution.
+//
+// Contributors:
+//
+// Description:
+//
+
+/**
+ @file
+ @InternalComponent
+*/
+
+#include "cnetrequesthandler.h"
+#include "cpositionerq.h"
+#include "lbsdevloggermacros.h"
+#include "trequestparameters.h"
+	
+/*
+* CRequestHandler::NewL
+* Two-phased constructor.
+*/
+CNETRequestHandler* CNETRequestHandler::NewL(CPositionerQ* aPositionerQ)
+    {
+    CNETRequestHandler* self = new( ELeave ) CNETRequestHandler(aPositionerQ);
+    
+    CleanupStack::PushL( self );
+    self->ConstructL();
+    CleanupStack::Pop();
+
+    return self;
+    }
+
+/*
+* CNETRequestHandler::~CNETRequestHandler
+* Destructor.
+*/
+CNETRequestHandler::~CNETRequestHandler()
+    {
+	delete iNETRequestBus;
+    }
+
+/**
+@param aPositionerQ 	the positioner Q
+*/
+CNETRequestHandler::CNETRequestHandler(CPositionerQ* aPositionerQ) 
+	{
+	iPositionerQ = aPositionerQ;
+	}
+
+/**
+construct the request bus by channel identifier
+*/
+void CNETRequestHandler::ConstructL()
+	{
+	CRequestHandler::ConstructL();
+	
+	iChannel = KChannelArray[KNetworkManagerToLocServerChannelIndex];	// PSY<->NetLocManager channel
+
+	iNETRequestBus = CNETRequestBus::NewL(iChannel);
+	}
+
+/**
+Merge the request with the local iMergedRequest
+
+@param aTime The target time of the request
+@param aTimeForFix The maximum fix time
+@param aQuality The requested position info quality
+@see CPositionerSubSession
+*/
+TInt CNETRequestHandler::MergeRequest(const TRequestParameters* aRequestParameters, const TBool aTracking, 
+							TLbsPositionUpdateRequestBase::TPowerAdvice aPower)
+	{
+	TPositionQuality posQuality; 
+	TLbsPositionUpdateRequest newReq;
+	TLbsLocRequestQuality newRequestQuality;
+
+	aRequestParameters->iCriteria.GetRequiredQuality(posQuality);
+	
+	BuildUpdateRequest(newRequestQuality, aRequestParameters->iTimeForFix, posQuality);
+	newReq.TargetTime() 	= aRequestParameters->iTargetTime;
+	
+	newReq.RequestQuality().SetMaxFixTime(newRequestQuality.MaxFixTime());
+	newReq.RequestQuality().SetMinHorizontalAccuracy(newRequestQuality.MinHorizontalAccuracy());
+	newReq.RequestQuality().SetMinVerticalAccuracy(newRequestQuality.MinVerticalAccuracy());
+
+	newReq.NewClient() 		= aRequestParameters->iNewClient;
+	newReq.Tracking() 		= aTracking;
+	newReq.SetPowerAdvice(aPower);
+
+	if(newReq.TargetTime() < iMergedRequest.TargetTime())
+		{
+		iMergedRequest.TargetTime() = newReq.TargetTime();
+		}
+		
+	if(newReq.RequestQuality().MinHorizontalAccuracy() < iMergedRequest.RequestQuality().MinHorizontalAccuracy())
+		{
+		iMergedRequest.RequestQuality().SetMinHorizontalAccuracy(newReq.RequestQuality().MinHorizontalAccuracy());
+		}
+		
+	if(newReq.RequestQuality().MinVerticalAccuracy() < iMergedRequest.RequestQuality().MinVerticalAccuracy())
+		{
+		iMergedRequest.RequestQuality().SetMinVerticalAccuracy(newReq.RequestQuality().MinVerticalAccuracy());
+		}
+
+	if(newReq.RequestQuality().MaxFixTime() < iMergedRequest.RequestQuality().MaxFixTime())
+		{
+		iMergedRequest.RequestQuality().SetMaxFixTime(newReq.RequestQuality().MaxFixTime());
+		}
+		
+	iMergedRequest.NewClient() = iMergedRequest.NewClient() || newReq.NewClient();
+	iMergedRequest.Tracking()  = iMergedRequest.Tracking()  || newReq.Tracking();
+ 
+ 	TLbsPositionUpdateRequest& reqNC = const_cast<TLbsPositionUpdateRequest&>(newReq);
+ 	iMergedRequest.SetPowerAdvice(reqNC.PowerAdvice());
+ 	
+ 	return KErrNone;
+	}
+
+/** Used before merging */
+void CNETRequestHandler::ResetMergedRequest()
+	{
+	iMergedRequest.NewClient()  = EFalse;
+	iMergedRequest.Tracking()   = EFalse;
+	iMergedRequest.TargetTime() = KMaxTInt64;
+	iMergedRequest.RequestQuality().SetMinHorizontalAccuracy(KMaxTReal32);
+	iMergedRequest.RequestQuality().SetMinVerticalAccuracy(KMaxTReal32);
+	iMergedRequest.RequestQuality().SetMaxFixTime(KMaxTInt64);
+	}	
+
+/**
+Publish the request to the request bus
+	
+@param aRequest The request to be updated
+@param aTimeForFix The maximum fix time
+@param aQuality The requested position info quality
+*/
+void CNETRequestHandler::IssueMergedRequestL()
+	{
+	iCurrentRequest = iMergedRequest;
+	TLbsPositionUpdateRequest request = iCurrentRequest;
+	
+	// If target time is 'now' then force the request target time to be 0
+	TTime currentTime;
+	currentTime.UniversalTime();
+	
+	if (!request.Tracking())	// Not tracking
+		{
+		if (request.TargetTime() <= currentTime)
+			{
+			request.TargetTime() = TTime(0);
+			}
+		}
+	else if (request.NewClient())	// Tracking!
+		{
+		request.TargetTime() = TTime(0);
+		}
+
+	iNETRequestBus->PublishRequestL(request);
+	}
+	
+/**
+Publish the Cancel request to the request bus.
+Cancel always disables tracking (the tracking flag is EFalse by default)
+*/
+void CNETRequestHandler::IssueCancel(TBool aTracking, TLbsPositionUpdateRequestBase::TPowerAdvice aPower)
+	{
+	TLbsPositionUpdateRequestCancel cancel;
+
+	// note, here we choose to send EPowerAdviceStandby straight away
+	cancel.SetPowerAdvice(aPower);
+	cancel.Tracking() = aTracking;
+	
+	TRAP_IGNORE(iNETRequestBus->PublishRequestL(cancel));
+	}
+	
+/**
+Publish statutory information (e.g tracking) to the request bus.
+*/
+void CNETRequestHandler::IssueStatus(TBool aTracking, TLbsPositionUpdateRequestBase::TPowerAdvice aPower)
+   	{
+   	TLbsPositionUpdateRequestStatus status;
+   	status.Tracking() = aTracking;
+ 	status.SetPowerAdvice(aPower);
+   	TRAP_IGNORE(iNETRequestBus->PublishRequestL(status));
+   	}