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1 /* |
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2 * Copyright (c) 2007 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: Operation for reading partial landmarks. |
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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 |
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20 #include <eposlmasyncops.rsg> |
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21 #include <EPos_LandmarksErrors.h> |
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22 #include <epos_cposlmresourcereader.h> |
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23 #include <EPos_PosLmImplExtension.h> |
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24 #include <epos_poslmlandmarkhandler.h> |
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25 #include <epos_cposlmlocaldbaccess.h> |
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26 |
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27 #include "EPos_LocalLandmarks.h" |
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28 #include "epos_cposlmlocaldatabase.h" |
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29 #include "EPos_RPosLmLocalAccessSubsession.h" |
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30 #include "EPos_CPosLmLocalGetSortedIdsOp.h" |
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31 |
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32 const TInt KGranularity = 128; |
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33 const TReal32 KOperationDone = 1; |
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34 |
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35 // ============================ MEMBER FUNCTIONS =============================== |
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36 |
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37 // ----------------------------------------------------------------------------- |
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38 // ----------------------------------------------------------------------------- |
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39 // |
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40 CPosLmLocalGetSortedIdsOp::CPosLmLocalGetSortedIdsOp( |
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41 CPosLmLocalDatabase& aDb, TPosLmSortPref aSortPref ) : |
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42 CPosLmLocalOperation(aDb), |
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43 iSortPref( aSortPref ), |
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44 iStatusFlag( KPosLmOperationNotComplete ) |
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45 { |
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46 } |
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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 void CPosLmLocalGetSortedIdsOp::ConstructL() |
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52 { |
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53 BaseConstructL(); |
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54 |
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55 iIdArray = new (ELeave) CArrayFixSeg<TPosLmItemId>( KGranularity ); |
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56 |
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57 ReadInfoFromResourceFileL(); |
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58 AquireLockL( CPosLmLocalDatabase::EReadLock ); |
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59 } |
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60 |
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61 // ----------------------------------------------------------------------------- |
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62 // ----------------------------------------------------------------------------- |
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63 // |
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64 CPosLmLocalGetSortedIdsOp* CPosLmLocalGetSortedIdsOp::NewL( |
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65 CPosLmLocalDatabase& aDb, |
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66 TPosLmSortPref aSortPref ) |
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67 { |
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68 CPosLmLocalGetSortedIdsOp* self = new (ELeave) |
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69 CPosLmLocalGetSortedIdsOp( aDb, aSortPref ); |
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70 CleanupStack::PushL( self ); |
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71 self->ConstructL(); |
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72 CleanupStack::Pop( self ); |
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73 return self; |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // ----------------------------------------------------------------------------- |
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78 // |
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79 CPosLmLocalGetSortedIdsOp::~CPosLmLocalGetSortedIdsOp() |
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80 { |
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81 if ( iIdArray ) |
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82 { |
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83 delete iIdArray; |
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84 } |
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85 } |
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86 |
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87 // ----------------------------------------------------------------------------- |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 TInt CPosLmLocalGetSortedIdsOp::NextStepL( TReal32& aProgress ) |
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91 { |
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92 TPosLmItemId* ids = new (ELeave) TPosLmItemId[ iIdBatchSize ]; |
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93 CleanupStack::PushL( ids ); |
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94 |
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95 TInt remainder( 0 ); |
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96 TInt result = iDb->NameIndex().ReadSortedIds( ids, iCurrent, iIdBatchSize, remainder ); |
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97 |
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98 if ( result < 0 ) |
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99 { |
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100 User::Leave( result ); |
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101 } |
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102 else // result >= 0 |
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103 { |
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104 for ( int i = 0; i < result ; i++) |
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105 { |
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106 iIdArray->AppendL( ids[i] ); |
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107 } |
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108 iCurrent += result; |
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109 } |
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110 |
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111 if ( remainder <= 0 ) // all retrieved |
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112 { |
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113 iStatusFlag = KErrNone; |
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114 aProgress = KOperationDone; |
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115 ReleaseLock(); |
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116 } |
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117 else |
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118 { |
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119 aProgress = TReal32( iCurrent ) / TReal32( iCurrent + remainder ); |
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120 } |
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121 |
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122 CleanupStack::PopAndDestroy( ids ); |
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123 return iStatusFlag; |
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124 } |
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125 |
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126 // ----------------------------------------------------------------------------- |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 void CPosLmLocalGetSortedIdsOp::HandleError( TInt& aError ) |
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130 { |
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131 iStatusFlag = aError; |
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132 ReleaseLock(); |
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133 } |
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134 |
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135 // ----------------------------------------------------------------------------- |
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136 // ----------------------------------------------------------------------------- |
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137 // |
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138 void CPosLmLocalGetSortedIdsOp::GetResultL( RArray<TPosLmItemId>& aIdArray ) |
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139 { |
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140 aIdArray.Reset(); |
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141 aIdArray.ReserveL( iIdArray->Count() ); |
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142 if ( iSortPref.SortOrder() == TPosLmSortPref::EAscending ) |
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143 { |
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144 for ( TInt i = 0; i < iIdArray->Count(); i++ ) |
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145 { |
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146 aIdArray.Append( (*iIdArray)[i] ); |
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147 } |
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148 } |
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149 else |
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150 { |
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151 for ( TInt i = iIdArray->Count() - 1; i >= 0; i-- ) |
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152 { |
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153 aIdArray.Append( (*iIdArray)[i] ); |
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154 } |
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155 } |
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156 } |
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157 |
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158 // ----------------------------------------------------------------------------- |
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159 // ----------------------------------------------------------------------------- |
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160 // |
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161 void CPosLmLocalGetSortedIdsOp::ReadInfoFromResourceFileL() |
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162 { |
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163 CPosLmResourceReader* resources = |
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164 CPosLmResourceReader::NewLC(KPosLocalSuboperationResourceFile); |
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165 |
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166 iIdBatchSize = resources->ReadInt32L( R_POS_LM_LOCAL_GET_SORTED_IDS_OP ); |
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167 |
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168 if ( iIdBatchSize <= 0 ) |
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169 { |
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170 Panic(KPosLandmarksClientPanic, |
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171 EPosInvalidValueSpecifiedInResourceFile ); |
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172 } |
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173 |
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174 CleanupStack::PopAndDestroy( resources ); |
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175 } |
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176 |