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1 /* |
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2 * Copyright (c) 2005-2009 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: Notifier client side active object |
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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 "mdenotifierao.h" |
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21 |
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22 #include "mdcresult.h" |
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23 #include "mdeenginesession.h" |
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24 #include "mdesessionimpl.h" |
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25 #include "mdenamespacedef.h" |
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26 #include "mdcserializationbuffer.h" |
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27 #include "mdccommon.pan" |
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28 |
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29 // ========================= MEMBER FUNCTIONS ================================== |
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30 |
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31 CMdENotifierAO* CMdENotifierAO::NewL( |
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32 CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ) |
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33 { |
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34 CMdENotifierAO* self = CMdENotifierAO::NewLC( aSessionImpl, aSession ); |
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35 CleanupStack::Pop( self ); |
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36 return self; |
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37 } |
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38 |
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39 |
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40 CMdENotifierAO* CMdENotifierAO::NewLC( |
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41 CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ) |
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42 { |
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43 CMdENotifierAO* self = |
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44 new ( ELeave ) CMdENotifierAO( aSessionImpl, aSession ); |
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45 CleanupStack::PushL( self ); |
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46 self->ConstructL(); |
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47 return self; |
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48 } |
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49 |
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50 |
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51 CMdENotifierAO::CMdENotifierAO( |
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52 CMdESessionImpl& aSessionImpl, RMdEEngineSession& aSession ) |
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53 : CActive( CActive::EPriorityUserInput ) |
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54 , iSessionImpl( aSessionImpl ) |
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55 , iSession( aSession ) |
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56 { |
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57 CActiveScheduler::Add( this ); |
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58 } |
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59 |
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60 void CMdENotifierAO::ConstructL() |
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61 { |
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62 } |
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63 |
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64 |
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65 CMdENotifierAO::~CMdENotifierAO() |
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66 { |
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67 Cancel(); // Causes call to DoCancel() |
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68 delete iDataBuffer; |
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69 iIdArray.Close(); |
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70 iRelationItemArray.Close(); |
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71 } |
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72 |
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73 |
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74 void CMdENotifierAO::RegisterL( TUint32 aType, TAny* aObserver, |
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75 CMdECondition* aCondition, CMdENamespaceDef& aNamespaceDef ) |
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76 { |
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77 iObserver = aObserver; |
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78 iType = aType; |
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79 iNamespaceDefId = aNamespaceDef.Id(); |
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80 |
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81 CMdCSerializationBuffer* buffer = NULL; |
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82 |
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83 if( aCondition ) |
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84 { |
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85 buffer = CMdCSerializationBuffer::NewLC( aCondition->RequiredBufferSize() ); |
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86 |
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87 // only needed, because method needs it as parameter |
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88 TUint32 freespaceOffset = 0; |
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89 |
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90 aCondition->SerializeL( *buffer, freespaceOffset ); |
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91 } |
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92 else |
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93 { |
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94 // create empty serialized condition buffer |
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95 buffer = CMdCSerializationBuffer::NewLC( 0 ); |
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96 } |
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97 |
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98 iSession.DoRegisterL( Id(), iType, *buffer, iNamespaceDefId ); |
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99 CleanupStack::PopAndDestroy( buffer ); |
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100 |
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101 // listen for first event |
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102 iSession.DoListen( Id(), &iResultSize, iStatus ); |
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103 SetActive(); |
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104 } |
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105 |
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106 TBool CMdENotifierAO::Match( TUint32 aType, TAny* aObserver, CMdENamespaceDef& aNamespaceDef ) |
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107 { |
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108 if( aNamespaceDef.Id() != iNamespaceDefId ) |
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109 { |
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110 return EFalse; |
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111 } |
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112 |
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113 if ( iObserver != aObserver ) |
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114 { |
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115 return EFalse; |
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116 } |
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117 |
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118 return ( iType & aType ); |
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119 } |
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120 |
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121 TInt CMdENotifierAO::Id() |
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122 { |
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123 return (TInt)this; |
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124 } |
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125 |
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126 void CMdENotifierAO::DoCancel() |
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127 { |
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128 TRAP_IGNORE( iSession.DoUnregisterL( Id() ) ); |
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129 // the current pending call will return with KErrCancel |
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130 } |
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131 |
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132 void CMdENotifierAO::RunL() |
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133 { |
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134 const TInt status = iStatus.Int(); |
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135 |
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136 if ( status >= KErrNone ) |
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137 { |
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138 if ( status & ( EObjectNotifyAdd | EObjectNotifyModify | EObjectNotifyRemove |
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139 | EObjectNotifyPresent | EObjectNotifyNotPresent |
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140 | ERelationNotifyAdd | ERelationNotifyModify | ERelationNotifyRemove |
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141 | ERelationNotifyPresent | ERelationNotifyNotPresent |
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142 | EEventNotifyAdd | EEventNotifyRemove ) ) |
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143 { |
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144 if( !iDataBuffer ) |
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145 { |
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146 iDataBuffer = CMdCSerializationBuffer::NewL( iResultSize() ); |
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147 } |
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148 else if( iDataBuffer->Buffer().MaxSize() < iResultSize() ) |
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149 { |
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150 delete iDataBuffer; |
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151 iDataBuffer = NULL; |
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152 iDataBuffer = CMdCSerializationBuffer::NewL( iResultSize() ); |
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153 } |
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154 |
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155 if( iResultSize() ) |
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156 { |
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157 iSession.DoGetDataL( *iDataBuffer, Id() ); // reads ids to the buffer |
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158 DecodeIdBufferL(); // decodes ids from the data buffer and puts them to iIdArray |
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159 |
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160 delete iDataBuffer; |
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161 iDataBuffer = NULL; |
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162 |
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163 DoNotifyObserver(); // notifies the observer about the event with an array of ids |
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164 } |
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165 iSession.DoListen( Id(), &iResultSize, iStatus ); // continue listening for events |
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166 SetActive(); |
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167 } |
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168 else if ( status & ( /*ERelationItemNotifyAdd | ERelationItemNotifyModify |
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169 |*/ ERelationItemNotifyRemove ) ) // a relation was removed |
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170 { |
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171 if( !iDataBuffer ) |
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172 { |
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173 iDataBuffer = CMdCSerializationBuffer::NewL(iResultSize()); |
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174 } |
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175 else if( iDataBuffer->Size() < (TUint32)iResultSize() ) |
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176 { |
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177 delete iDataBuffer; |
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178 iDataBuffer = NULL; |
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179 iDataBuffer = CMdCSerializationBuffer::NewL(iResultSize()); |
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180 } |
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181 |
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182 if(iResultSize()) |
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183 { |
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184 iSession.DoGetDataL( *iDataBuffer, Id() ); // reads ids to the buffer |
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185 DecodeRelationItemBufferL(); // decodes ids from the data buffer and puts them to iIdArray |
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186 |
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187 delete iDataBuffer; |
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188 iDataBuffer = NULL; |
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189 |
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190 DoNotifyObserver(); // notifies the observer about the event with an array of ids |
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191 } |
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192 iSession.DoListen( Id(), &iResultSize, iStatus ); // continue listening for events |
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193 SetActive(); |
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194 } |
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195 else if ( status == ESchemaModify ) // schema has been modified |
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196 { |
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197 DoNotifyObserver(); // notifies the observer about the event with an array of ids |
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198 iSession.DoListen( Id(), &iResultSize, iStatus ); // continue listening for events |
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199 SetActive(); |
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200 } |
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201 } |
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202 else |
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203 { |
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204 // error in notifier mechanism |
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205 if( status != KErrServerTerminated ) |
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206 { |
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207 iSession.DoUnregisterL( Id() ); // no response expected |
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208 } |
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209 else |
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210 { |
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211 iSessionImpl.NotifyError( status ); |
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212 } |
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213 iSessionImpl.NotifierInError( this ); |
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214 } |
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215 } |
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216 |
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217 TInt CMdENotifierAO::RunError(TInt aError) |
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218 { |
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219 if( aError == KErrServerTerminated ) |
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220 { |
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221 iSessionImpl.NotifyError( aError ); |
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222 } |
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223 |
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224 // notifying observer failed - continue listening anyway. |
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225 iSessionImpl.NotifierInError( this ); |
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226 return KErrNone; |
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227 } |
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228 |
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229 void CMdENotifierAO::DoNotifyObserver() |
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230 { |
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231 if( !iObserver ) |
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232 { |
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233 return; |
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234 } |
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235 const TInt status = iStatus.Int(); |
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236 switch( iType & status ) |
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237 { |
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238 case EObjectNotifyAdd: |
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239 { |
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240 MMdEObjectObserver* obs = static_cast<MMdEObjectObserver*>( iObserver ); |
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241 obs->HandleObjectNotification( iSessionImpl, ENotifyAdd, iIdArray ); |
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242 iIdArray.Reset(); |
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243 break; |
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244 } |
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245 case EObjectNotifyModify: |
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246 { |
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247 MMdEObjectObserver* obs = static_cast<MMdEObjectObserver*>( iObserver ); |
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248 obs->HandleObjectNotification( iSessionImpl, ENotifyModify, iIdArray ); |
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249 iIdArray.Reset(); |
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250 break; |
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251 } |
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252 case EObjectNotifyRemove: |
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253 { |
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254 MMdEObjectObserver* obs = static_cast<MMdEObjectObserver*>( iObserver ); |
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255 obs->HandleObjectNotification( iSessionImpl, ENotifyRemove, iIdArray ); |
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256 iIdArray.Reset(); |
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257 break; |
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258 } |
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259 |
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260 case EObjectNotifyPresent: |
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261 { |
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262 MMdEObjectPresentObserver* obs = static_cast<MMdEObjectPresentObserver*>( iObserver ); |
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263 obs->HandleObjectPresentNotification( iSessionImpl, ETrue, iIdArray ); |
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264 iIdArray.Reset(); |
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265 break; |
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266 } |
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267 case EObjectNotifyNotPresent: |
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268 { |
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269 MMdEObjectPresentObserver* obs = static_cast<MMdEObjectPresentObserver*>( iObserver ); |
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270 obs->HandleObjectPresentNotification( iSessionImpl, EFalse, iIdArray ); |
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271 iIdArray.Reset(); |
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272 break; |
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273 } |
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274 |
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275 case ERelationNotifyAdd: |
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276 { |
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277 MMdERelationObserver* obs = static_cast<MMdERelationObserver*>( iObserver ); |
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278 obs->HandleRelationNotification( iSessionImpl, ENotifyAdd, iIdArray ); |
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279 iIdArray.Reset(); |
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280 break; |
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281 } |
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282 case ERelationNotifyModify: |
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283 { |
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284 MMdERelationObserver* obs = static_cast<MMdERelationObserver*>( iObserver ); |
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285 obs->HandleRelationNotification( iSessionImpl, ENotifyModify, iIdArray ); |
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286 iIdArray.Reset(); |
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287 break; |
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288 } |
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289 case ERelationNotifyRemove: |
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290 { |
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291 MMdERelationObserver* obs = static_cast<MMdERelationObserver*>( iObserver ); |
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292 obs->HandleRelationNotification( iSessionImpl, ENotifyRemove, iIdArray ); |
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293 iIdArray.Reset(); |
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294 break; |
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295 } |
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296 |
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297 case ERelationNotifyPresent: |
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298 { |
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299 MMdERelationPresentObserver* obs = static_cast<MMdERelationPresentObserver*>( iObserver ); |
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300 obs->HandleRelationPresentNotification( iSessionImpl, ETrue, iIdArray ); |
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301 iIdArray.Reset(); |
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302 break; |
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303 } |
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304 case ERelationNotifyNotPresent: |
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305 { |
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306 MMdERelationPresentObserver* obs = static_cast<MMdERelationPresentObserver*>( iObserver ); |
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307 obs->HandleRelationPresentNotification( iSessionImpl, EFalse, iIdArray ); |
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308 iIdArray.Reset(); |
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309 break; |
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310 } |
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311 |
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312 case ERelationItemNotifyRemove: |
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313 { |
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314 MMdERelationItemObserver* obs = static_cast<MMdERelationItemObserver*>( iObserver ); |
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315 obs->HandleRelationItemNotification( iSessionImpl, ENotifyRemove, iRelationItemArray ); |
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316 iRelationItemArray.Reset(); |
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317 break; |
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318 } |
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319 |
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320 case EEventNotifyAdd: |
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321 { |
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322 MMdEEventObserver* obs = static_cast<MMdEEventObserver*>( iObserver ); |
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323 obs->HandleEventNotification( iSessionImpl, ENotifyAdd, iIdArray); |
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324 iIdArray.Reset(); |
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325 break; |
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326 } |
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327 case EEventNotifyRemove: |
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328 { |
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329 MMdEEventObserver* obs = static_cast<MMdEEventObserver*>( iObserver ); |
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330 obs->HandleEventNotification( iSessionImpl, ENotifyRemove, iIdArray); |
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331 iIdArray.Reset(); |
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332 break; |
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333 } |
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334 |
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335 case ESchemaModify: |
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336 { |
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337 MMdESchemaObserver* obs = static_cast<MMdESchemaObserver*>( iObserver ); |
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338 obs->HandleSchemaModified(); |
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339 break; |
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340 } |
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341 |
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342 default: |
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343 // no observer to call - this should be skipped on server side! |
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344 break; |
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345 } |
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346 } |
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347 |
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348 void CMdENotifierAO::DecodeIdBufferL() |
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349 { |
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350 // IDs are always stored in object IDs, |
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351 // even if those are actually relation or event IDs |
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352 |
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353 iIdArray.Reset(); |
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354 iDataBuffer->PositionL( KNoOffset ); |
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355 const TMdCItemIds& itemIds = TMdCItemIds::GetFromBufferL( *iDataBuffer ); |
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356 __ASSERT_DEBUG( iNamespaceDefId == itemIds.iNamespaceDefId, User::Panic( _L("Incorrect namespaceDef from returned items!"), KErrCorrupt ) ); |
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357 |
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358 iDataBuffer->PositionL( itemIds.iObjectIds.iPtr.iOffset ); |
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359 for( TUint32 i = 0; i < itemIds.iObjectIds.iPtr.iCount; ++i ) |
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360 { |
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361 TItemId id; |
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362 iDataBuffer->ReceiveL( id ); |
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363 iIdArray.AppendL( id ); |
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364 } |
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365 } |
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366 |
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367 void CMdENotifierAO::DecodeRelationItemBufferL() |
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368 { |
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369 iRelationItemArray.Reset(); |
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370 iDataBuffer->PositionL( KNoOffset ); |
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371 const TMdCItems& items = TMdCItems::GetFromBufferL( *iDataBuffer ); |
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372 __ASSERT_DEBUG( iNamespaceDefId == items.iNamespaceDefId, User::Panic( _L("Incorrect namespaceDef from returned items!"), KErrCorrupt ) ); |
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373 |
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374 CMdENamespaceDef& namespaceDef = iSessionImpl.GetNamespaceDefL( iNamespaceDefId ); |
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375 iDataBuffer->PositionL( items.iRelations.iPtr.iOffset ); |
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376 TMdERelation relation; |
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377 for (TInt i = 0; i < items.iRelations.iPtr.iCount; ++i ) |
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378 { |
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379 relation.DeSerializeL( *iDataBuffer, namespaceDef ); |
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380 if ( relation.Id() ) |
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381 { |
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382 iRelationItemArray.Append( relation ); |
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383 } |
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384 } |
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385 } |