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1 /* |
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2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: A Context Engine Plug-in to get location context information. |
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15 * |
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16 */ |
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17 |
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18 |
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19 #include <e32std.h> |
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20 #include <uri16.h> |
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21 #include <e32math.h> |
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22 #include <LbsPosition.h> |
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23 #include <etel3rdparty.h> |
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24 |
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25 #include "locationcontextplugin.h" |
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26 #include "mdenamespacedef.h" |
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27 #include "mdeobject.h" |
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28 #include "mdeharvestersession.h" |
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29 #include "mdeproperty.h" |
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30 #include "harvesterlog.h" |
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31 #include "mdsutils.h" |
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32 #include "mdeconstants.h" |
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33 #include "mdeobjectdef.h" |
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34 #include "harvesterdata.h" |
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35 |
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36 using namespace MdeConstants; |
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37 |
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38 // ======== MEMBER FUNCTIONS ======== |
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39 |
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40 // --------------------------------------------------------------------------- |
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41 // Default constructor for first phase construction. |
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42 // Don't export these - used only by functions in this DLL, eg our NewL(). |
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43 // --------------------------------------------------------------------------- |
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44 // |
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45 CLocationContextPlugin::CLocationContextPlugin() : |
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46 iObserver( NULL ), iMdeSession( NULL ), iLocationTrailConnected( EFalse ) |
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47 { |
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48 } |
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49 |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // Second phase construction |
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53 // --------------------------------------------------------------------------- |
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54 // |
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55 void CLocationContextPlugin::ConstructL() // second-phase constructor |
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56 { |
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57 // No implementation required |
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58 } |
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59 |
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60 |
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61 // --------------------------------------------------------------------------- |
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62 // The usual NewL() |
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63 // --------------------------------------------------------------------------- |
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64 // |
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65 CLocationContextPlugin* CLocationContextPlugin::NewL() |
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66 { |
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67 CLocationContextPlugin* self = new (ELeave) CLocationContextPlugin(); |
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68 CleanupStack::PushL( self ); |
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69 self->ConstructL(); |
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70 CleanupStack::Pop( self ); |
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71 return self; |
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72 } |
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73 |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Destructor |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 CLocationContextPlugin::~CLocationContextPlugin() |
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80 { |
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81 iLocationTrail.Close(); |
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82 iManipulator.Close(); |
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83 } |
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84 |
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85 |
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86 // --------------------------------------------------------------------------- |
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87 // From CContextPlugin. |
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88 // Initialization of Location Context Plugin. |
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89 // --------------------------------------------------------------------------- |
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90 // |
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91 void CLocationContextPlugin::Init( MContextPluginObserver& aObserver ) |
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92 { |
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93 WRITELOG("CLocationContextPlugin::Init()"); |
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94 |
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95 TInt err = iLocationTrail.Connect(); |
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96 if ( err == KErrNone ) |
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97 { |
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98 err = iManipulator.Connect(); |
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99 if (err == KErrNone) |
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100 { |
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101 iLocationTrailConnected = ETrue; |
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102 } |
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103 } |
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104 else |
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105 { |
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106 iLocationTrailConnected = EFalse; |
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107 } |
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108 aObserver.PluginInitializationStatus( KErrNone ); // notify the context framework |
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109 } |
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110 |
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111 // --------------------------------------------------------------------------- |
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112 // Set a pointer to MdESession. |
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113 // Session is used to store harvested context data. |
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114 // --------------------------------------------------------------------------- |
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115 // |
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116 void CLocationContextPlugin::SetMdeSession( CMdESession& aSession ) |
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117 { |
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118 iMdeSession = &aSession; |
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119 } |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // From CContextPlugin. |
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123 // This method takes a location context snapshot for one metadata object |
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124 // and writes the information to the object received as parameter. |
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125 // The observer will be informed about the status of the operation. |
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126 // --------------------------------------------------------------------------- |
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127 // |
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128 void CLocationContextPlugin::ContextSnapshot( MContextPluginObserver& aObserver, |
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129 CHarvesterData& aHD ) |
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130 { |
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131 WRITELOG( "CLocationContextPlugin::ContextSnapshot()" ); |
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132 |
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133 if( !aHD.AddLocation() ) |
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134 { |
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135 WRITELOG( "CLocationContextPlugin::ContextSnapshot() - aHd.AddLocation returned false" ); |
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136 aHD.SetErrorCode( KErrNone ); |
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137 aObserver.PluginSnapshotStatus( &aHD ); |
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138 return; |
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139 } |
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140 |
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141 if ( !iLocationTrailConnected ) // no trail, no snapshot |
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142 { |
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143 aHD.SetErrorCode( KErrDisconnected ); |
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144 aObserver.PluginSnapshotStatus( &aHD ); |
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145 return; |
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146 } |
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147 |
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148 TInt ret = KErrNone; |
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149 |
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150 ret = iManipulator.LocationSnapshot( aHD.MdeObject().Id() ); |
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151 |
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152 aHD.SetErrorCode( ret ); |
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153 aObserver.PluginSnapshotStatus( &aHD ); |
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154 } |
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155 |
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156 // --------------------------------------------------------------------------- |
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157 // From CContextPlugin. |
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158 // This method takes a location context snapshot for several metadata objects |
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159 // and writes the information to the all the objects received as parameter. |
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160 // The observer will be informed about the status of the operation. |
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161 // --------------------------------------------------------------------------- |
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162 // |
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163 void CLocationContextPlugin::ContextSnapshot( MContextPluginObserver& aObserver, |
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164 RPointerArray<CHarvesterData>& aHDArray ) |
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165 { |
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166 const TInt count( aHDArray.Count() ); |
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167 WRITELOG( "CLocationContextPlugin::ContextSnapshot()" ); |
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168 |
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169 if ( !iLocationTrailConnected ) // no trail, no snapshot |
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170 { |
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171 for(TInt i = 0; i < count; i++) |
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172 { |
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173 CHarvesterData* hd = aHDArray[i]; |
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174 hd->SetErrorCode( KErrDisconnected ); |
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175 aObserver.PluginSnapshotStatus( hd ); |
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176 } |
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177 return; |
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178 } |
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179 |
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180 TLocationData data; |
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181 RLocationTrail::TTrailState state; |
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182 CMdEProperty* timeProp = NULL; |
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183 TInt ret = KErrNone; |
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184 iLocationTrail.GetLocationTrailState( state ); |
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185 |
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186 if ( state != RLocationTrail::ETrailStopped && state != RLocationTrail::ETrailStopping ) |
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187 { |
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188 for (TInt i = 0; i < aHDArray.Count(); ++i) |
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189 { |
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190 CMdEObject& mdeObject = ((CHarvesterData*)aHDArray[i])->MdeObject(); |
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191 TRAP( ret, GetMdeObjectCreationTimeL( mdeObject, timeProp ) ); |
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192 if ( ret != KErrNone ) |
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193 { |
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194 continue; |
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195 } |
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196 #ifdef _DEBUG |
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197 TRAP_IGNORE( |
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198 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - timeProp: %Ld", |
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199 timeProp->TimeValueL().Int64() ) ); |
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200 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - Location trail state: %d", |
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201 state ); |
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202 #endif |
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203 |
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204 TRAP_IGNORE(ret = iLocationTrail.RetrieveLocation( timeProp->TimeValueL(), data, state )); |
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205 |
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206 #ifdef _DEBUG |
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207 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - Retrieve location returned: %d", ret ); |
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208 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - Latitude was: %f", data.iPosition.Latitude() ); |
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209 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - Longitude was: %f", data.iPosition.Longitude() ); |
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210 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() - Altitude was: %f", data.iPosition.Altitude() ); |
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211 #endif |
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212 |
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213 if (ret == KErrNone) |
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214 { |
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215 if ( !Math::IsNaN(data.iPosition.Latitude() ) || |
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216 !Math::IsNaN(data.iPosition.Longitude() ) || |
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217 !Math::IsNaN(data.iPosition.Altitude() ) || |
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218 data.iNetworkInfo.iCellId > 0 || data.iNetworkInfo.iLocationAreaCode > 0 || |
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219 data.iNetworkInfo.iCountryCode.Length() > 0 || |
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220 data.iCountry.Length() > 0 || data.iNetworkInfo.iNetworkId.Length() > 0 ) |
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221 { |
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222 #ifdef _DEBUG |
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223 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() Create location object for id: %d", mdeObject.Id()); |
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224 #endif |
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225 ret = iManipulator.CreateLocationObject(data, mdeObject.Id()); |
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226 WRITELOG1( "CLocationContextPlugin::ContextSnapshot() Create location object returned: %d", ret); |
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227 } |
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228 } |
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229 else |
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230 { |
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231 ret = KErrNone; |
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232 } |
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233 |
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234 } |
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235 } |
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236 |
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237 // Notify to context framework |
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238 for(TInt i = 0; i < count; i++) |
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239 { |
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240 CHarvesterData* hd = aHDArray[i]; |
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241 hd->SetErrorCode( KErrNone ); |
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242 aObserver.PluginSnapshotStatus( hd ); |
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243 } |
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244 } |
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245 |
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246 // --------------------------------------------------------------------------- |
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247 // Get mde object creation date/time. |
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248 // --------------------------------------------------------------------------- |
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249 // |
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250 void CLocationContextPlugin::GetMdeObjectCreationTimeL( CMdEObject& aObject, |
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251 CMdEProperty*& aProperty ) |
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252 { |
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253 CMdENamespaceDef& namespaceDef = iMdeSession->GetDefaultNamespaceDefL(); |
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254 |
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255 CMdEObjectDef& objectDef = namespaceDef.GetObjectDefL( Object::KBaseObject ); |
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256 CMdEPropertyDef& creationDef = objectDef.GetPropertyDefL( Object::KLastModifiedDateProperty ); |
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257 |
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258 CMdEProperty* property = NULL; |
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259 aObject.Property( creationDef, property, 0 ); |
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260 if ( !property ) |
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261 { |
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262 User::Leave( KErrNotFound ); |
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263 } |
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264 aProperty = property; |
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265 } |