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1 /** @file |
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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: Implements the CUpnpArgumentContentHandler class |
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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 "upnpargumentcontenthandler.h" |
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20 #include "upnpcontenthandlerscontroller.h" |
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21 #include "upnpignorecontenthandler.h" |
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22 #include "upnpargument.h" |
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23 #include "upnpserviceliterals.h" |
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24 |
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25 //const TUint8 KReqiuredTagsBoundary(7) //first three bits when |
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26 //relatedStateVariable, and direction is required |
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27 const TUint8 KReqiuredTagsBoundary(1); |
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28 enum TFlagsPositions |
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29 { |
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30 ENamePos = 0, |
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31 EDirectionPos, |
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32 ERelatedStateVariablePos //reqired, but optional for now |
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33 // ERetvalPos |
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34 }; |
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35 |
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36 // ----------------------------------------------------------------------------- |
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37 // CUpnpArgumentContentHandler::NewL |
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38 // Two-phased constructor |
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39 // ----------------------------------------------------------------------------- |
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40 // |
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41 CUpnpArgumentContentHandler* CUpnpArgumentContentHandler::NewL( |
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42 CUpnpContentHandlersController& aController, CUpnpArgument& aResultArgument ) |
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43 { |
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44 CUpnpArgumentContentHandler* argumentContentHandler = |
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45 CUpnpArgumentContentHandler::NewLC( aController, aResultArgument ); |
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46 CleanupStack::Pop( argumentContentHandler ); |
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47 return argumentContentHandler; |
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48 } |
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49 |
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50 // ----------------------------------------------------------------------------- |
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51 // CUpnpArgumentContentHandler::NewLC |
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52 // Two-phased constructor. Leaves teh object on the CleanupStack |
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53 // ----------------------------------------------------------------------------- |
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54 // |
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55 CUpnpArgumentContentHandler* CUpnpArgumentContentHandler::NewLC( |
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56 CUpnpContentHandlersController& aController, CUpnpArgument& aResultArgument ) |
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57 { |
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58 CUpnpArgumentContentHandler* argumentContentHandler = |
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59 new (ELeave) CUpnpArgumentContentHandler( aController, aResultArgument ); |
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60 CleanupStack::PushL( argumentContentHandler ); |
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61 return argumentContentHandler; |
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62 } |
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63 |
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64 // ----------------------------------------------------------------------------- |
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65 // CUpnpArgumentContentHandler::~CUpnpArgumentContentHandler |
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66 // Destructor of CUpnpArgumentContentHandler class |
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67 // ----------------------------------------------------------------------------- |
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68 // |
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69 CUpnpArgumentContentHandler::~CUpnpArgumentContentHandler() |
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70 { |
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71 } |
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72 |
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73 // ----------------------------------------------------------------------------- |
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74 // CUpnpArgumentContentHandler::CUpnpArgumentContentHandler |
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75 // Constructor |
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76 // ----------------------------------------------------------------------------- |
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77 // |
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78 CUpnpArgumentContentHandler::CUpnpArgumentContentHandler( |
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79 CUpnpContentHandlersController& aController, CUpnpArgument& aResultArgument ) : |
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80 CUpnpContentHandler( aController ), iResultArgument( aResultArgument ), |
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81 iCurrentState( EInitial ) |
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82 { |
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83 } |
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84 |
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85 // ----------------------------------------------------------------------------- |
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86 // CUpnpArgumentContentHandler::OnStartElementL |
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87 // This method is a callback to indicate an element has been parsed. |
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88 // ----------------------------------------------------------------------------- |
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89 // |
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90 void CUpnpArgumentContentHandler::OnStartElementL( const RTagInfo& aElement, |
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91 const RAttributeArray& /*aAttributes*/ ) |
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92 { |
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93 if ( iCurrentState == EInitial ) |
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94 { |
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95 const TDesC8& elementName( aElement.LocalName().DesC() ); |
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96 if ( elementName.Compare( KUpnpName ) == 0 ) |
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97 { |
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98 RepeatedTagCheckL( ENamePos, iFoundTags ); |
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99 iCurrentState = EName; |
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100 } |
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101 else if ( elementName.Compare(KUpnpDirection) == 0 ) |
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102 { |
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103 RepeatedTagCheckL( EDirectionPos, iFoundTags ); |
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104 iCurrentState = EDirection; |
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105 } |
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106 else if ( elementName.Compare(KUpnpRelatedStateVariable) == 0 ) |
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107 { |
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108 RepeatedTagCheckL( ERelatedStateVariablePos, iFoundTags ); |
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109 iCurrentState = ERelatedStateVariable; |
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110 } |
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111 // else if ( elementName.Compare(KUpnpRetval) == 0 ) |
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112 // { |
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113 // RepeatedTagCheckL( ERetvalPos, iFoundTags ) |
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114 // iController.SetCurrentContentHandlerL( |
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115 // CUpnpRetvalContentHandler::NewL( iController ) |
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116 // ) |
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117 // } |
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118 else |
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119 { |
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120 iController.SetCurrentContentHandlerL( |
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121 CUpnpIgnoreContentHandler::NewL( iController ) ); |
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122 } |
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123 } |
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124 else |
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125 { |
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126 iController.SetCurrentContentHandlerL( |
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127 CUpnpIgnoreContentHandler::NewL( iController ) ); |
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128 //User::Leave( KErrArgument ) |
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129 } |
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130 } |
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131 |
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132 // ----------------------------------------------------------------------------- |
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133 // CUpnpArgumentContentHandler::OnEndElementL |
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134 // This method is a callback to indicate the end of the element has been reached. |
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135 // ----------------------------------------------------------------------------- |
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136 // |
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137 void CUpnpArgumentContentHandler::OnEndElementL( const RTagInfo& aElement ) |
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138 { |
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139 switch ( iCurrentState ) |
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140 { |
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141 case EInitial: |
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142 ASSERT( aElement.LocalName().DesC().Compare(KUpnpArgument) == 0 ); |
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143 if ( ( iFoundTags.iFlags & KReqiuredTagsBoundary ) == |
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144 KReqiuredTagsBoundary ) |
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145 { |
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146 iController.SetPreviousContentHandler(); |
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147 } |
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148 else |
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149 { |
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150 User::Leave( KErrArgument ); //required tag not found |
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151 } |
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152 break; |
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153 default: |
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154 iCurrentState = EInitial; |
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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 // CUpnpArgumentContentHandler::OnContentL |
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160 // This method is a callback that sends the content of the element. |
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161 // aErrorCode must be KErrNone, and that aBytes should contains complete |
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162 // content (one chunk). |
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163 // ----------------------------------------------------------------------------- |
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164 // |
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165 void CUpnpArgumentContentHandler::OnContentL( const TDesC8& aBytes ) |
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166 { |
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167 switch ( iCurrentState ) |
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168 { |
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169 case EName: |
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170 iResultArgument.SetNameL( aBytes ); |
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171 break; |
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172 case EDirection: |
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173 if ( aBytes.Compare( KUpnpIn ) == 0 ) |
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174 { |
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175 iResultArgument.SetDirectionL( EIn ); |
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176 } |
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177 else //if ( aBytes.Compare( KUpnpOut ) == 0 ) |
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178 { |
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179 iResultArgument.SetDirectionL( EOut ); |
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180 } |
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181 // else |
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182 // { |
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183 // User::Leave( KErrArgument ) |
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184 // } |
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185 |
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186 break; |
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187 case ERelatedStateVariable: |
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188 iResultArgument.SetRelatedStateVarL( aBytes ); |
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189 break; |
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190 default: |
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191 ASSERT( EInitial == iCurrentState ); |
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192 //User::Leave( KErrArgument ) |
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193 break; |
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194 } |
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195 } |
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196 |
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197 // End of File |