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1 /* |
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2 * Copyright (c) 2003-2005 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: Implementation of Custom ECom Resolver for AIW. |
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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 |
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21 #include "AiwResolver.h" |
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22 |
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23 const TInt KMaxDataItemSize = 150; |
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24 _LIT8(KContentTag, "<CONTENT>"); |
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25 _LIT8(KOpaqueTag, "<OPAQUE>"); |
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26 |
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27 |
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28 CAiwResolver* CAiwResolver::NewL(MPublicRegistry& aRegistry) |
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29 { |
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30 return new (ELeave) CAiwResolver(aRegistry); |
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31 } |
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32 |
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33 |
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34 CAiwResolver::CAiwResolver(MPublicRegistry& aRegistry) : CResolver(aRegistry) |
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35 { |
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36 // Nothing to do. |
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37 } |
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38 |
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39 |
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40 CAiwResolver::~CAiwResolver() |
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41 { |
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42 if (iImplementationInfoArray) |
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43 { |
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44 iImplementationInfoArray->Reset(); |
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45 delete iImplementationInfoArray; |
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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 TUid CAiwResolver::IdentifyImplementationL(TUid aInterfaceUid, |
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52 const TEComResolverParams& aAdditionalParameters) const |
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53 { |
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54 RImplInfoArray& implementationsInfo = iRegistry.ListImplementationsL(aInterfaceUid); |
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55 TUid found = KNullUid; |
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56 |
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57 if(implementationsInfo.Count()) |
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58 { |
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59 found = Resolve(implementationsInfo, aAdditionalParameters); |
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60 } |
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61 |
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62 return found; |
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63 } |
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64 |
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65 |
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66 |
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67 RImplInfoArray* CAiwResolver::ListAllL(TUid aInterfaceUid, |
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68 const TEComResolverParams& aAdditionalParameters) const |
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69 { |
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70 // Use the member var to create the array so that we get proper cleanup behaviour |
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71 delete iImplementationInfoArray; |
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72 iImplementationInfoArray = NULL; |
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73 iImplementationInfoArray = new (ELeave) RImplInfoArray; |
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74 RImplInfoArray* retList = iImplementationInfoArray; |
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75 |
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76 RImplInfoArray& fullList = iRegistry.ListImplementationsL(aInterfaceUid); |
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77 |
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78 const TBool useWildcards = aAdditionalParameters.IsWildcardMatch(); |
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79 TBuf8<KMaxDataItemSize> content; |
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80 TBuf8<KMaxDataItemSize> opaque; |
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81 |
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82 ParseInput(aAdditionalParameters.DataType(), content, opaque); |
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83 const TInt numImps = fullList.Count(); |
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84 |
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85 for (TInt index = 0; index < numImps; ++index) |
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86 { |
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87 if (Match(fullList[index]->DataType(), content, useWildcards) && |
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88 MatchServiceCmd(fullList[index]->OpaqueData(), opaque)) |
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89 { |
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90 User::LeaveIfError(retList->Append(fullList[index])); |
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91 } |
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92 } |
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93 |
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94 // Reset the member variable because we are passing ownership back |
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95 iImplementationInfoArray = NULL; |
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96 |
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97 return retList; |
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98 } |
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99 |
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100 |
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101 |
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102 void CAiwResolver::ParseInput(const TDesC8& aParam, TDes8& aContent, TDes8& aOpaque) const |
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103 { |
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104 TInt cind = aParam.Find(KContentTag); |
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105 TInt oind = aParam.Find(KOpaqueTag); |
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106 |
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107 if (cind != KErrNotFound) |
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108 { |
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109 if (oind != KErrNotFound) |
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110 { |
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111 aContent.Copy(aParam.Mid(cind + (&KContentTag)->Length(), |
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112 oind - (cind + (&KContentTag)->Length()))); |
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113 } |
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114 else |
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115 { |
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116 aContent.Copy(aParam.Mid(cind + (&KContentTag)->Length())); |
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117 } |
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118 } |
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119 |
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120 if (oind != KErrNotFound) |
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121 { |
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122 aOpaque.Copy(aParam.Mid(oind + (&KOpaqueTag)->Length())); |
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123 } |
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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 TUid CAiwResolver::Resolve(const RImplInfoArray& aImplementationsInfo, |
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129 const TEComResolverParams& aAdditionalParameters) const |
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130 { |
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131 // Loop through the implementations matching on type |
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132 const TInt count = aImplementationsInfo.Count(); |
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133 |
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134 for (TInt index = 0; index < count; ++index) |
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135 { |
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136 const CImplementationInformation& impData = *aImplementationsInfo[index]; |
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137 // As soon as we get a match on the datatype then return uid of the |
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138 // implementation found. |
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139 if (Match(impData.DataType(), // The Datatype of this implementation |
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140 aAdditionalParameters.DataType(), // The type we are trying to find |
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141 aAdditionalParameters.IsWildcardMatch())) // If wildcards should be used |
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142 { |
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143 return impData.ImplementationUid(); |
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144 } |
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145 } |
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146 |
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147 return KNullUid; |
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148 } |
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149 |
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150 |
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151 TBool CAiwResolver::Match(const TDesC8& aImplementationType, const TDesC8& aMatchType, |
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152 TBool aUseWildcards) const |
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153 { |
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154 TInt matchPos = KErrNotFound; |
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155 |
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156 _LIT8(dataSeparator, "||"); |
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157 const TInt separatorLength = dataSeparator().Length(); |
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158 |
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159 // Look for the section separator marker '||' |
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160 TInt separatorPos = aImplementationType.Find(dataSeparator); |
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161 |
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162 if (separatorPos == KErrNotFound) |
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163 { |
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164 // Match against the whole string |
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165 if (aUseWildcards) |
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166 { |
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167 matchPos = aImplementationType.Match(aMatchType); |
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168 } |
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169 else |
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170 { |
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171 if (aImplementationType.Compare(aMatchType) == 0) |
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172 { |
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173 matchPos = KErrNone; |
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174 } |
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175 } |
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176 } |
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177 else |
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178 { |
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179 // Find the first section, up to the separator |
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180 TPtrC8 dataSection = aImplementationType.Left(separatorPos); |
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181 TPtrC8 remainingData = aImplementationType.Mid(separatorPos + separatorLength); |
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182 |
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183 // Match against each section in turn |
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184 while (separatorPos != KErrNotFound) |
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185 { |
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186 // Search this section |
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187 if (aUseWildcards) |
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188 { |
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189 matchPos = dataSection.Match(aMatchType); |
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190 } |
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191 else |
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192 { |
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193 if (dataSection.Compare(aMatchType) == 0) |
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194 { |
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195 matchPos = KErrNone; |
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196 } |
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197 } |
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198 |
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199 // If we found it then no need to continue, so return |
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200 if (matchPos != KErrNotFound) |
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201 { |
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202 return ETrue; |
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203 } |
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204 |
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205 // Move on to the next section |
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206 separatorPos = remainingData.Find(dataSeparator); |
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207 |
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208 if (separatorPos != KErrNotFound) |
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209 { |
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210 dataSection.Set(remainingData.Left(separatorPos)); |
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211 remainingData.Set(remainingData.Mid(separatorPos + separatorLength)); |
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212 } |
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213 else |
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214 { |
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215 dataSection.Set(remainingData); |
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216 } |
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217 } |
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218 |
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219 // Check the final part |
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220 if (aUseWildcards) |
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221 { |
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222 matchPos = dataSection.Match(aMatchType); |
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223 } |
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224 else |
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225 { |
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226 if (dataSection.Compare(aMatchType) == 0) |
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227 { |
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228 matchPos = KErrNone; |
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229 } |
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230 } |
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231 } |
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232 |
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233 return matchPos != KErrNotFound; |
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234 } |
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235 |
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236 |
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237 |
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238 |
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239 TBool CAiwResolver::MatchServiceCmd(const TDesC8& aOpaqueData, const TDesC8& aServiceCmd) const |
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240 { |
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241 _LIT8(dataSeparator, "||"); |
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242 const TInt separatorLength = dataSeparator().Length(); |
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243 |
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244 // Look for the section separator marker '||' |
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245 TInt separatorPos = aOpaqueData.Find(dataSeparator); |
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246 |
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247 if (separatorPos == KErrNotFound) |
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248 { |
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249 if (aServiceCmd.Compare(aOpaqueData) == 0) |
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250 { |
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251 return ETrue; |
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252 } |
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253 } |
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254 else |
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255 { |
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256 // Find the first section, up to the separator |
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257 TPtrC8 dataSection = aOpaqueData.Left(separatorPos); |
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258 TPtrC8 remainingData = aOpaqueData.Mid(separatorPos + separatorLength); |
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259 |
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260 // Match against each section in turn |
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261 while (separatorPos != KErrNotFound) |
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262 { |
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263 if (dataSection.Compare(aServiceCmd) == 0) |
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264 { |
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265 return ETrue; |
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266 } |
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267 |
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268 // Move on to the next section |
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269 separatorPos = remainingData.Find(dataSeparator); |
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270 |
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271 if (separatorPos != KErrNotFound) |
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272 { |
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273 dataSection.Set(remainingData.Left(separatorPos)); |
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274 remainingData.Set(remainingData.Mid(separatorPos + separatorLength)); |
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275 } |
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276 else |
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277 { |
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278 dataSection.Set(remainingData); |
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279 } |
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280 } |
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281 |
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282 if (dataSection.Compare(aServiceCmd) == 0) |
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283 { |
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284 return ETrue; |
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285 } |
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286 } |
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287 |
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288 return EFalse; |
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289 } |
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290 |
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291 |
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292 // Map the interface UIDs |
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293 const TImplementationProxy ImplementationTable[] = |
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294 { |
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295 IMPLEMENTATION_PROXY_ENTRY(KAiwResolverImplUidValue, CAiwResolver::NewL) |
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296 }; |
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297 |
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298 // Exported proxy for instantiation method resolution |
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299 // --------------------------------------------------------- |
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300 // |
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301 // |
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302 // --------------------------------------------------------- |
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303 // |
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304 EXPORT_C const TImplementationProxy* ImplementationGroupProxy(TInt& aTableCount) |
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305 { |
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306 aTableCount = sizeof(ImplementationTable) / sizeof(TImplementationProxy); |
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307 return ImplementationTable; |
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308 } |
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309 |
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310 // End of file |
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311 |