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1 /* |
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2 * Copyright (c) 2005 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: CMMCScBkupIndexPublicDataFiles implementation |
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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 "CMMCScBkupIndexPublicDataFiles.h" |
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20 |
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21 // User includes |
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22 #include "MMMCScBkupArchiveDataInterface.h" |
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23 #include "CMMCScBkupFileInfo.h" |
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24 #include "CMMCScBkupFileListCollection.h" |
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25 |
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26 |
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27 /** |
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28 * Public File Data |
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29 * ================ |
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30 * |
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31 * This is the format of the data written by the |
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32 * CMMCScBkupStateArchiveOpPublicDataFiles object |
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33 * |
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34 * PUB FILE DATA for file 0 |
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35 * PUB FILE DATA for file 1 |
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36 * PUB FILE DATA for file n |
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37 * |
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38 * Public File Data Index |
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39 * ====================== |
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40 * |
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41 * This is the format of the data written by this object. |
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42 * The format allows the possibility of a future partial |
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43 * restore (hopefully). |
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44 * |
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45 * 4 bytes = count of data owners |
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46 * |
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47 * FOR EACH PUBLIC FILE |
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48 * { |
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49 * externalised CMMCScBkupFileInfo object |
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50 * externalised TMMCScBkupArchiveVector (offset & compressed size) object |
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51 * } |
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52 * |
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53 **/ |
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54 |
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55 |
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56 |
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57 // ========================= MEMBER FUNCTIONS ================================ |
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58 |
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59 // --------------------------------------------------------------------------- |
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60 // CMMCScBkupIndexPublicDataFiles::CMMCScBkupIndexPublicDataFiles() |
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61 // |
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62 // C++ constructor. |
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63 // --------------------------------------------------------------------------- |
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64 CMMCScBkupIndexPublicDataFiles::CMMCScBkupIndexPublicDataFiles() |
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65 : CMMCScBkupIndexBase( EMMCScBkupOwnerDataTypePublicData ) |
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66 { |
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67 } |
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68 |
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69 |
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70 // --------------------------------------------------------------------------- |
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71 // CMMCScBkupIndexPublicDataFiles::~CMMCScBkupIndexPublicDataFiles() |
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72 // |
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73 // Destructor. |
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74 // --------------------------------------------------------------------------- |
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75 CMMCScBkupIndexPublicDataFiles::~CMMCScBkupIndexPublicDataFiles() |
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76 { |
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77 iEntries.Close(); |
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78 } |
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79 |
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80 |
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81 // --------------------------------------------------------------------------- |
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82 // CMMCScBkupIndexPublicDataFiles::NewLC() |
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83 // |
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84 // |
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85 // --------------------------------------------------------------------------- |
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86 CMMCScBkupIndexPublicDataFiles* CMMCScBkupIndexPublicDataFiles::NewLC() |
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87 { |
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88 CMMCScBkupIndexPublicDataFiles* self = new(ELeave) CMMCScBkupIndexPublicDataFiles(); |
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89 CleanupStack::PushL(self); |
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90 self->ConstructL(); |
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91 return self; |
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92 } |
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93 |
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94 |
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95 // --------------------------------------------------------------------------- |
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96 // CMMCScBkupIndexPublicDataFiles::AddIndexRecordL() |
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97 // |
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98 // |
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99 // --------------------------------------------------------------------------- |
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100 void CMMCScBkupIndexPublicDataFiles::AddIndexRecordL( const TMMCScBkupArchiveVector& aInfo, const CMMCScBkupFileInfo& aFile ) |
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101 { |
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102 // Create new entry |
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103 TMMCScBkupPublicFileEntry entry( aInfo, aFile ); |
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104 |
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105 // Add it to our index |
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106 iEntries.AppendL( entry ); |
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107 } |
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108 |
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109 |
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110 // --------------------------------------------------------------------------- |
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111 // CMMCScBkupIndexPublicDataFiles::At() |
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112 // |
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113 // |
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114 // --------------------------------------------------------------------------- |
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115 const CMMCScBkupFileInfo& CMMCScBkupIndexPublicDataFiles::At( TInt aIndex, TMMCScBkupArchiveVector& aInfo ) const |
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116 { |
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117 const TMMCScBkupPublicFileEntry& entry = iEntries[ aIndex ]; |
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118 aInfo = entry.iInfo; |
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119 return *entry.iFile; |
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120 } |
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121 |
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122 |
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123 // --------------------------------------------------------------------------- |
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124 // CMMCScBkupIndexPublicDataFiles::StoreL() |
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125 // |
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126 // |
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127 // --------------------------------------------------------------------------- |
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128 void CMMCScBkupIndexPublicDataFiles::StoreL(MMMCScBkupDriver& aDriver) |
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129 { |
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130 MMMCScBkupArchiveDataInterface& archiveDataInterface = aDriver.DrvADI(); |
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131 RWriteStream stream(archiveDataInterface.ADIWriteStreamUncompressedLC()); |
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132 // |
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133 const TInt count = iEntries.Count(); |
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134 stream.WriteInt32L(count); |
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135 // |
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136 for(TInt i=0; i<count; i++) |
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137 { |
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138 const TMMCScBkupPublicFileEntry& entry = iEntries[i]; |
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139 stream << *entry.iFile; |
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140 stream << entry.iInfo; |
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141 } |
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142 // |
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143 stream.CommitL(); |
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144 CleanupStack::PopAndDestroy(); // stream |
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145 |
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146 // Update our base class info with the offset to the index |
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147 SetVector( archiveDataInterface.ADICurrentArchiveVectorInfo() ); |
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148 } |
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149 |
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150 |
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151 // --------------------------------------------------------------------------- |
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152 // CMMCScBkupIndexPublicDataFiles::RestoreL() |
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153 // |
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154 // |
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155 // --------------------------------------------------------------------------- |
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156 void CMMCScBkupIndexPublicDataFiles::RestoreL(MMMCScBkupDriver& aDriver) |
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157 { |
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158 CMMCScBkupFileListCollection& fileList = aDriver.DrvFileList(); |
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159 // |
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160 MMMCScBkupArchiveDataInterface& archiveDataInterface = aDriver.DrvADI(); |
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161 RReadStream& stream = archiveDataInterface.ADIReadStreamUncompressedLC( Vector().Offset() ); |
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162 // |
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163 const TInt count = stream.ReadInt32L(); |
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164 for(TInt i=0; i<count; i++) |
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165 { |
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166 TMMCScBkupPublicFileEntry entry; |
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167 |
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168 // Reconstruct the CMMCScBkupFileInfo entry in the stream |
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169 CMMCScBkupFileInfo* fileInfo = CMMCScBkupFileInfo::NewLC( stream ); |
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170 |
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171 // Give ownership to the file list collection |
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172 fileList.AppendL( fileInfo ); |
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173 CleanupStack::Pop( fileInfo ); |
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174 entry.iFile = fileInfo; |
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175 |
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176 // Then read the offset to the file... |
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177 stream >> entry.iInfo; |
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178 |
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179 // And finally add a new record to our index, so client's can |
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180 // retrieve the info. |
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181 iEntries.AppendL( entry ); |
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182 } |
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183 // |
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184 CleanupStack::PopAndDestroy(); // stream |
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185 // |
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186 const TMMCScBkupArchiveVector& readInfo = archiveDataInterface.ADICurrentArchiveVectorInfo(); |
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187 if ( readInfo.Length() > Vector().Length() ) |
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188 { |
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189 // We've read too much! |
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190 User::Leave( KErrCorrupt ); |
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191 } |
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192 } |
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193 |
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194 |
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195 |
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196 |