|
1 // Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies). |
|
2 // All rights reserved. |
|
3 // This component and the accompanying materials are made available |
|
4 // under the terms of "Eclipse Public License v1.0" |
|
5 // which accompanies this distribution, and is available |
|
6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
|
7 // |
|
8 // Initial Contributors: |
|
9 // Nokia Corporation - initial contribution. |
|
10 // |
|
11 // Contributors: |
|
12 // |
|
13 // Description: |
|
14 // netfinaldataDataBus.cpp |
|
15 // |
|
16 // |
|
17 |
|
18 /** |
|
19 @file |
|
20 @InternalComponent |
|
21 */ |
|
22 |
|
23 #include "cfinalnetdatabus.h" |
|
24 #include "lbsdevloggermacros.h" |
|
25 |
|
26 /** |
|
27 Create a net final data bus, this should be called from the location cache |
|
28 |
|
29 @return The pointer to the location data bus |
|
30 @see CLocationCache |
|
31 */ |
|
32 CFinalNetDataBus* CFinalNetDataBus::NewL(MDataBusObserver& aObserver) |
|
33 { |
|
34 CFinalNetDataBus* self = new (ELeave) CFinalNetDataBus(aObserver); |
|
35 CleanupStack::PushL(self); |
|
36 self->ConstructL(); |
|
37 CleanupStack::Pop(self); |
|
38 return self; |
|
39 } |
|
40 |
|
41 /** |
|
42 constructor, note the location data bus is owned by location cache and used by CRequestQ, and it is a module-based CActive object. |
|
43 Set the data bus as standard priority by default. |
|
44 Add itself to Active Scheduler |
|
45 |
|
46 @param aModuleId Position module Id |
|
47 @see CRequestQ |
|
48 @see CLocationCache |
|
49 */ |
|
50 CFinalNetDataBus::CFinalNetDataBus(MDataBusObserver& aObserver) : CActive(CActive::EPriorityStandard), iObs(aObserver) |
|
51 { |
|
52 CActiveScheduler::Add(this); |
|
53 } |
|
54 |
|
55 /** |
|
56 Open the RProperty object wrappered by the data bus. |
|
57 Location data bus is implemented as Publish & Subscribe mechanism. |
|
58 */ |
|
59 void CFinalNetDataBus::ConstructL() |
|
60 { |
|
61 iFinalNetDataBus.OpenL(RLbsNetworkPositionUpdates::ENetworkPositionFinal); |
|
62 } |
|
63 |
|
64 /** |
|
65 Cancel any outstanding request to the CActive object. |
|
66 Close the RProperty. |
|
67 */ |
|
68 CFinalNetDataBus::~CFinalNetDataBus() |
|
69 { |
|
70 Cancel(); // just in case... |
|
71 iFinalNetDataBus.Close(); |
|
72 } |
|
73 |
|
74 |
|
75 /** |
|
76 Subscribe to the data bus. It will be called by objects which listen to the data bus. |
|
77 It will eventually call RProperty::Subscribe() |
|
78 Set active the data bus active object |
|
79 Panic if there are no data bus observers already set. |
|
80 */ |
|
81 void CFinalNetDataBus::Subscribe() |
|
82 { |
|
83 if(!IsActive()) |
|
84 { |
|
85 iFinalNetDataBus.NotifyNetworkLocationUpdate(iStatus); |
|
86 SetActive(); |
|
87 } |
|
88 } |
|
89 |
|
90 /** |
|
91 Cancel the subscribe to the data bus. Cancel any outstanding request to the CActive object. |
|
92 Panic if there are no data bus observers already set. |
|
93 */ |
|
94 void CFinalNetDataBus::UnSubscribe() |
|
95 { |
|
96 Cancel(); |
|
97 } |
|
98 |
|
99 /** |
|
100 Get the last position from the bus |
|
101 */ |
|
102 TInt CFinalNetDataBus::GetLastPositionInfo(TPositionInfo& aFNPInfo, TTime& aActualTime) |
|
103 { |
|
104 TLbsNetSessionIdInt sessionId; |
|
105 TTime targetTime; |
|
106 |
|
107 TInt error = iFinalNetDataBus.GetPositionInfo(sessionId, aFNPInfo, targetTime, aActualTime); |
|
108 if(error == KErrNone && (aFNPInfo.PositionMode() & TPositionModuleInfo::ETechnologyTerminal)) |
|
109 { |
|
110 error = KErrNotFound; // filter out terminal assisted FNPs |
|
111 } |
|
112 return error; |
|
113 } |
|
114 |
|
115 /** |
|
116 from CActive, the main event processing loop |
|
117 Whenever there is a new event, i.e. the position info data is published to the data bus, notify the data bus observer by LocationDataAvailableL() |
|
118 */ |
|
119 void CFinalNetDataBus::RunL() |
|
120 { |
|
121 TLbsNetSessionIdInt sessionId; |
|
122 TTime targetTime; |
|
123 TTime actualTime; |
|
124 |
|
125 TInt error = iFinalNetDataBus.GetPositionInfo(sessionId, iPositionInfo, targetTime, actualTime); |
|
126 |
|
127 if(iPositionInfo.PositionMode() & TPositionModuleInfo::ETechnologyNetwork)// filter out terminal assisted FNPs |
|
128 { |
|
129 iObs.DataUpdate(iPositionInfo, iStatus.Int(), error, actualTime); |
|
130 } |
|
131 } |
|
132 |
|
133 /** |
|
134 from CActive |
|
135 Cancels the request for position update notification |
|
136 It will eventually cancel an outstanding subscription request for this property handle. |
|
137 */ |
|
138 void CFinalNetDataBus::DoCancel() |
|
139 { |
|
140 iFinalNetDataBus.CancelNotifyNetworkLocationUpdate(); |
|
141 } |
|
142 |
|
143 /** |
|
144 from CActive |
|
145 Simply fwds any errors to the observers |
|
146 */ |
|
147 TInt CFinalNetDataBus::RunError(TInt aError) |
|
148 { |
|
149 return iObs.DataError(aError, iStatus.Int()); |
|
150 } |
|
151 |