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1 /* |
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2 * Copyright (c) 2004 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: Language package data file loader |
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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 FILES |
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20 #include "asrplugindataloader.h" |
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21 #include "sysconfigprovider.h" |
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22 |
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23 |
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24 #ifdef __SIND_AUTOCONF_LID |
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25 #include <syslangutil.h> |
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26 /* MSysConfigProvider is a wrapper for get syslangutil. This makes it easier to test without */ |
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27 /* dependency to the actual language configuration in the emulator environment. The test */ |
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28 /* class implements this interface. */ |
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29 class TDefaultConfig : public MSysConfigProvider { |
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30 public: |
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31 TDefaultConfig() {}; |
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32 ~TDefaultConfig() {}; |
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33 TInt GetInstalledLanguages( CArrayFixFlat<TInt>*& aLanguages, RFs* aFileServerSession = NULL ) |
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34 { |
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35 return SysLangUtil::GetInstalledLanguages(aLanguages, aFileServerSession); |
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36 }; |
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37 }; |
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38 #endif // __SIND_AUTOCONF_LID |
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39 |
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40 // Local constants |
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41 |
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42 _LIT( KZDriveLetter, "z" ); |
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43 |
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44 |
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45 #ifdef __SIND_AUTOCONF_LID |
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46 const TUint32 KTtpAutoConfLidPackageType = 1; |
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47 const TUint32 KTtpAutoConfLidPackageID = 1; |
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48 const TInt KLidBufGranularity = 1000; |
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49 #endif // __SIND_AUTOCONF_LID |
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50 |
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51 |
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52 // ============================ MEMBER FUNCTIONS =============================== |
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53 |
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54 // ----------------------------------------------------------------------------- |
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55 // CDataLoaderLoader::CDataLoader |
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56 // C++ default constructor can NOT contain any code, that |
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57 // might leave. |
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58 // ----------------------------------------------------------------------------- |
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59 // |
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60 CDataLoader::CDataLoader() |
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61 { |
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62 // Nothing |
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63 } |
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64 |
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65 // ----------------------------------------------------------------------------- |
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66 // CDataLoader::ConstructL |
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67 // Symbian 2nd phase constructor can leave. |
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68 // ----------------------------------------------------------------------------- |
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69 // |
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70 void CDataLoader::ConstructL( const TDesC& aPrefixOfFileName, |
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71 const TDesC& aSeparator, |
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72 const TDesC& aPostfixOfFileName, |
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73 MSysConfigProvider *aProvider ) |
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74 { |
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75 iPrefixOfFileName = HBufC::NewL( aPrefixOfFileName.Length() ); |
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76 (*iPrefixOfFileName) = aPrefixOfFileName; |
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77 iSeparator = HBufC::NewL( aSeparator.Length() ); |
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78 (*iSeparator) = aSeparator; |
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79 iPostfixOfFileName = HBufC::NewL( aPostfixOfFileName.Length() ); |
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80 (*iPostfixOfFileName) = aPostfixOfFileName; |
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81 |
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82 iProvider = aProvider; |
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83 |
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84 // Open file session |
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85 User::LeaveIfError( iFs.Connect() ); |
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86 } |
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87 |
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88 // ----------------------------------------------------------------------------- |
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89 // CDataLoader::NewL |
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90 // Two-phased constructor. |
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91 // ----------------------------------------------------------------------------- |
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92 // |
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93 CDataLoader* CDataLoader::NewL( const TDesC& aPrefixOfFileName, |
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94 const TDesC& aSeparator, |
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95 const TDesC& aPostfixOfFileName, |
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96 MSysConfigProvider *aProvider ) |
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97 { |
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98 CDataLoader* self = new ( ELeave ) CDataLoader(); |
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99 |
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100 CleanupStack::PushL( self ); |
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101 self->ConstructL( aPrefixOfFileName, |
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102 aSeparator, |
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103 aPostfixOfFileName, |
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104 aProvider); |
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105 CleanupStack::Pop( self ); |
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106 |
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107 return self; |
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108 } |
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109 |
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110 // ----------------------------------------------------------------------------- |
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111 // CDataLoader::~CDataLoader |
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112 // Destructor. |
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113 // ----------------------------------------------------------------------------- |
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114 // |
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115 CDataLoader::~CDataLoader() |
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116 { |
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117 delete iPrefixOfFileName, |
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118 delete iSeparator, |
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119 delete iPostfixOfFileName; |
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120 |
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121 iFs.Close(); |
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122 } |
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123 |
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124 // ----------------------------------------------------------------------------- |
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125 // CDataLoader::PackageName |
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126 // Construct filename for requested package |
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127 // ----------------------------------------------------------------------------- |
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128 // |
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129 void CDataLoader::PackageName (TFileName &aFileName, TUint32 aPackageType, TUint32 aPackageID) |
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130 { |
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131 // Resolve the name of the file |
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132 // filename is <iPrefixOfFileName>_<PackageType>_<aPackageID><iPostfixOfFileName> |
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133 |
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134 aFileName.Copy( iPrefixOfFileName->Des() ); // path/SRSF_ |
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135 aFileName.AppendNumUC( aPackageType ); // path/SRSF_1 |
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136 aFileName.Append( iSeparator->Des() ); // path/SRSF_1_ |
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137 aFileName.AppendNumUC( aPackageID ); // path/SRSF_1_326 |
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138 aFileName.Append( iPostfixOfFileName->Des() ); // path/SRSF_1_326.bin |
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139 } |
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140 |
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141 #ifdef __SIND_AUTOCONF_LID |
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142 // ----------------------------------------------------------------------------- |
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143 // CDataLoader::AppendLoadL |
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144 // Load language package file to the end of buffer |
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145 // ----------------------------------------------------------------------------- |
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146 // |
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147 void CDataLoader::AppendLoadL( CBufBase *aBuffer, |
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148 TUint32 aPackageType, |
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149 TUint32 aPackageID ) |
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150 { |
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151 // Resolve filename |
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152 TFileName fileName; |
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153 PackageName (fileName, aPackageType, aPackageID); |
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154 |
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155 // Load data |
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156 HBufC8* buffer = NULL; |
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157 |
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158 TRAPD( err, buffer = DoLoadL( fileName, 0, KMaxTUint32 )); // IMPLICIT: LID packages are loaded completely |
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159 if( err == KErrNone && buffer ) |
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160 { |
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161 CleanupStack::PushL( buffer ); // ResizeL may leave below |
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162 |
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163 TInt prevSize = aBuffer->Size(); // size before resize |
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164 TInt newSize = aBuffer->Size() + buffer->Size(); // new size for lid data buffer |
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165 |
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166 aBuffer->ResizeL( newSize ); // resize lid data buffer |
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167 aBuffer->Write( prevSize, *buffer ); // append data from read buffer |
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168 |
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169 CleanupStack::PopAndDestroy(buffer); // buffer copied -> free |
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170 } |
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171 } |
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172 |
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173 |
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174 |
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175 // ----------------------------------------------------------------------------- |
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176 // CDataLoader::LoadSysLangPackagesL |
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177 // Load LID language data to a buffer according to installed system languages |
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178 // ----------------------------------------------------------------------------- |
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179 // |
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180 void CDataLoader::SysLangPackagesToBufferL( CBufBase *aBuffer ) |
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181 { |
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182 MSysConfigProvider *config = iProvider; |
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183 TDefaultConfig defaultProvider; |
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184 if (!config) config = &defaultProvider; |
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185 |
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186 // Get installed languages |
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187 CArrayFixFlat<TInt>* languages( NULL ); |
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188 |
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189 //User::LeaveIfError (SysLangUtil::GetInstalledLanguages(languages, &iFs)); |
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190 User::LeaveIfError (config->GetInstalledLanguages(languages, &iFs)); |
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191 CleanupStack::PushL( languages ) ; |
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192 |
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193 // Loop over installed languages |
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194 for ( TInt i = 0 ; i < languages->Count(); i++ ) |
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195 { |
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196 AppendLoadL(aBuffer, KTtpAutoConfLidPackageType, languages->At(i)); |
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197 }// next language |
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198 |
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199 CleanupStack::PopAndDestroy( languages ); |
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200 } |
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201 |
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202 // ----------------------------------------------------------------------------- |
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203 // CDataLoader::ConstructLidDataL |
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204 // Load LID language data to a buffer according to installed system languages |
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205 // ----------------------------------------------------------------------------- |
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206 // |
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207 HBufC8* CDataLoader::ConstructLidDataL() |
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208 { |
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209 CBufBase* lidDataBuffer = CBufSeg::NewL( KLidBufGranularity ) ; // accumulates the binary data from lid model files |
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210 CleanupStack::PushL( lidDataBuffer ) ; |
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211 |
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212 SysLangPackagesToBufferL (lidDataBuffer); |
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213 |
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214 // Prepare returnable data |
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215 HBufC8* dataBuffer = NULL; |
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216 |
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217 if( lidDataBuffer->Size() > 0 ) |
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218 { |
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219 // If any data was loaded, create a buffer for it |
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220 dataBuffer = HBufC8::NewL( lidDataBuffer->Size() ); // create a returnable buffer |
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221 TPtr8 dataBufferPtr = dataBuffer->Des(); // get a modifiable pointer to it |
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222 lidDataBuffer->Read( 0, dataBufferPtr, lidDataBuffer->Size() ); // put the lid data into it |
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223 } |
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224 |
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225 CleanupStack::PopAndDestroy( lidDataBuffer ) ; |
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226 |
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227 return dataBuffer; |
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228 } |
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229 #endif // __SIND_AUTOCONF_LID |
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230 |
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231 |
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232 // ----------------------------------------------------------------------------- |
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233 // CDataLoader::LoadData |
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234 // Load language package file. It resolves the name of the language package |
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235 // ----------------------------------------------------------------------------- |
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236 // |
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237 HBufC8* CDataLoader::LoadData( TUint32 aPackageType, |
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238 TUint32 aPackageID, |
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239 TUint32 aStartPosition, |
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240 TUint32 aEndPosition ) { |
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241 |
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242 TInt err; |
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243 HBufC8* buffer = NULL; |
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244 |
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245 #ifdef __SIND_AUTOCONF_LID |
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246 // If LID data is requested, construct it from installed LID binary files |
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247 // Otherwise run normal data loading |
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248 |
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249 if( aPackageType == KTtpAutoConfLidPackageType && |
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250 aPackageID == KTtpAutoConfLidPackageID ) |
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251 { |
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252 TRAP( err, buffer = ConstructLidDataL() ); |
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253 } |
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254 #endif // __SIND_AUTOCONF_LID |
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255 |
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256 if (!buffer) { |
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257 TFileName fileName; |
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258 PackageName (fileName, aPackageType, aPackageID); |
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259 |
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260 // Load data |
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261 TRAP( err, buffer = DoLoadL( fileName, aStartPosition, aEndPosition ) ); |
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262 } |
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263 |
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264 if ( err == KErrNone ) |
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265 { |
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266 return buffer; |
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267 } |
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268 else |
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269 { |
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270 return NULL; |
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271 } |
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272 } |
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273 |
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274 |
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275 |
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276 // ----------------------------------------------------------------------------- |
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277 // CDataLoader::DoLoadL |
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278 // Actual file loading function |
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279 // ----------------------------------------------------------------------------- |
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280 // |
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281 HBufC8* CDataLoader::DoLoadL( TFileName& aFileName, |
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282 TUint32 aStartPosition, |
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283 TUint32 aEndPosition ) |
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284 { |
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285 TInt fileSize( 0 ); |
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286 RFile dataFile; |
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287 TInt readLength; |
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288 |
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289 // Open file |
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290 TInt err = dataFile.Open( iFs, aFileName, EFileRead); |
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291 |
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292 if ( err != KErrNone ) |
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293 { |
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294 aFileName.Replace(0,1,KZDriveLetter); // "z:\" |
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295 TInt err = dataFile.Open( iFs, aFileName, EFileRead); |
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296 if ( err != KErrNone ) |
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297 { |
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298 return NULL; |
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299 } |
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300 } |
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301 |
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302 CleanupClosePushL( dataFile ); |
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303 // Try to resolve how much should be read |
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304 readLength = aEndPosition - aStartPosition; |
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305 User::LeaveIfError( dataFile.Size( fileSize ) ); |
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306 |
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307 if ( aEndPosition != KMaxTUint32 ) |
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308 { |
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309 // Cannot read more than filesize |
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310 if ( ( readLength > fileSize ) || ( readLength < 0 ) ) |
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311 { |
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312 readLength = fileSize; |
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313 } |
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314 } |
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315 else |
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316 { |
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317 readLength = fileSize; |
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318 } |
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319 |
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320 // Seek the starting point |
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321 // Casting needed to convert from uint to int which is needed by Seek() |
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322 TInt startPosition = ( TInt ) aStartPosition; |
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323 dataFile.Seek( ESeekStart, startPosition ); |
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324 |
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325 // Reserve enough memory for the data |
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326 HBufC8* fileBuffer = HBufC8::NewLC( readLength ); |
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327 TPtr8 bufferPtr( fileBuffer->Des() ); |
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328 |
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329 User::LeaveIfError( dataFile.Read( bufferPtr ) ); |
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330 |
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331 CleanupStack::Pop( fileBuffer ); |
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332 CleanupStack::PopAndDestroy( &dataFile ); |
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333 return fileBuffer; |
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334 } |
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335 |
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336 // End of File |