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1 /* |
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2 * Copyright (c) 2010 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: This file implements class CEmailMailboxCache. |
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15 * |
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16 */ |
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17 |
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18 #include "emailmailboxcache.h" |
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19 #include "emailapiutils.h" |
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20 |
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21 static const TInt KCacheGranularity = 2; |
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22 |
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23 // --------------------------------------------------------------------------- |
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24 // |
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25 // --------------------------------------------------------------------------- |
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26 CEmailMailboxCache* CEmailMailboxCache::NewL() |
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27 { |
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28 CEmailMailboxCache* cache = new ( ELeave ) CEmailMailboxCache(); |
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29 return cache; |
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30 } |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 // --------------------------------------------------------------------------- |
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35 CEmailMailboxCache::~CEmailMailboxCache() |
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36 { |
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37 iEntries.Close(); |
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38 } |
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39 |
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40 // --------------------------------------------------------------------------- |
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41 // Start of cache transaction with clenanup support |
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42 // --------------------------------------------------------------------------- |
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43 void CEmailMailboxCache::StartCachingPushL() |
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44 { |
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45 TCleanupItem item( &CEmailMailboxCache::CleanupOp, this ); |
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46 CleanupStack::PushL( item ); |
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47 iState = ECaching; |
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48 iEntries.Reset(); |
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49 } |
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50 |
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51 // --------------------------------------------------------------------------- |
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52 // End of cache transaction |
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53 // --------------------------------------------------------------------------- |
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54 void CEmailMailboxCache::EndCachingPop() |
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55 { |
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56 iState = EComplete; |
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57 CleanupStack::Pop(); |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 // --------------------------------------------------------------------------- |
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63 TBool CEmailMailboxCache::IsCached() const |
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64 { |
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65 return iState == EComplete; |
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66 } |
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67 |
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68 // --------------------------------------------------------------------------- |
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69 // |
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70 // --------------------------------------------------------------------------- |
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71 void CEmailMailboxCache::AddMailboxL( |
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72 CPluginData& aPluginData, |
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73 const TMailboxId& aMailboxId ) |
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74 { |
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75 if ( iState != ECaching ) |
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76 { |
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77 User::Leave( KErrNotReady ); |
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78 } |
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79 if ( FindById( aMailboxId ) == KErrNotFound ) |
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80 { |
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81 TCacheEntry entry( &aPluginData, aMailboxId ); |
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82 iEntries.AppendL( entry ); |
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83 } |
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84 } |
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85 |
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86 // --------------------------------------------------------------------------- |
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87 // |
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88 // --------------------------------------------------------------------------- |
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89 CPluginData* CEmailMailboxCache::PluginDataL( const TMailboxId& aMailboxId ) const |
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90 { |
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91 CPluginData* pdata = NULL; |
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92 const TInt index( FindById( aMailboxId ) ); |
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93 if ( index != KErrNotFound ) |
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94 { |
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95 const TCacheEntry& entry = iEntries[ index ]; |
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96 pdata = entry.iPluginData; |
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97 } |
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98 return pdata; |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // |
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103 // --------------------------------------------------------------------------- |
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104 CPluginData* CEmailMailboxCache::PluginDataL( const TUid& aPluginId ) const |
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105 { |
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106 CPluginData* pdata = NULL; |
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107 const TInt index( FindByPluginIdL( aPluginId ) ); |
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108 if ( index != KErrNotFound ) |
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109 { |
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110 const TCacheEntry& entry = iEntries[ index ]; |
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111 pdata = entry.iPluginData; |
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112 } |
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113 return pdata; |
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114 } |
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115 |
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116 // --------------------------------------------------------------------------- |
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117 // |
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118 // --------------------------------------------------------------------------- |
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119 void CEmailMailboxCache::GetIdsL( REmailMailboxIdArray& aIdArray ) const |
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120 { |
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121 if ( iState != EComplete ) |
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122 { |
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123 // cache not up to date |
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124 User::Leave( KErrNotReady ); |
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125 } |
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126 for ( TInt i=0; i < iEntries.Count(); i++ ) |
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127 { |
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128 TMailboxId id = iEntries[i].iMailboxId; |
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129 aIdArray.AppendL( id ); |
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130 } |
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131 } |
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132 |
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133 // --------------------------------------------------------------------------- |
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134 // |
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135 // --------------------------------------------------------------------------- |
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136 TInt CEmailMailboxCache::FindById( const TMailboxId& aMailboxId ) const |
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137 { |
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138 TIdentityRelation<TCacheEntry> rel( CEmailMailboxCache::Equals ); |
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139 |
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140 // don't care about plugin data because this is seach key only and |
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141 // mailbox id is used for search |
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142 TCacheEntry entry( NULL, aMailboxId ); |
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143 return iEntries.Find( entry, rel ); |
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144 } |
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145 |
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146 // --------------------------------------------------------------------------- |
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147 // |
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148 // --------------------------------------------------------------------------- |
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149 TInt CEmailMailboxCache::FindByPluginIdL( const TUid& aPluginId ) const |
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150 { |
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151 TIdentityRelation<TCacheEntry> rel( CEmailMailboxCache::PluginEquals ); |
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152 CPluginData* key = new ( ELeave ) CPluginData( aPluginId ); |
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153 TCacheEntry entry( key, TMailboxId() ); |
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154 TInt index = iEntries.Find( entry, rel ); |
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155 delete key; |
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156 return index; |
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157 } |
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158 |
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159 // --------------------------------------------------------------------------- |
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160 // |
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161 // --------------------------------------------------------------------------- |
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162 TBool CEmailMailboxCache::Equals( const TCacheEntry& a1, const TCacheEntry& a2 ) |
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163 { |
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164 return ( a1.iMailboxId == a2.iMailboxId ); |
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165 } |
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166 |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 // --------------------------------------------------------------------------- |
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170 TBool CEmailMailboxCache::PluginEquals( const TCacheEntry& a1, const TCacheEntry& a2 ) |
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171 { |
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172 return ( a1.iPluginData->Uid() == a2.iPluginData->Uid() ); |
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173 } |
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174 |
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175 // --------------------------------------------------------------------------- |
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176 // Cleanup |
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177 // --------------------------------------------------------------------------- |
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178 void CEmailMailboxCache::CleanupOp( TAny* aAny ) |
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179 { |
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180 CEmailMailboxCache* cache = reinterpret_cast<CEmailMailboxCache*>( aAny ); |
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181 cache->iEntries.Reset(); |
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182 cache->iState = EEmpty; |
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183 } |
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184 |
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185 // --------------------------------------------------------------------------- |
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186 // |
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187 // --------------------------------------------------------------------------- |
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188 CEmailMailboxCache::CEmailMailboxCache() : |
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189 iState( EEmpty ), |
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190 iEntries( KCacheGranularity ) |
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191 { |
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192 } |
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193 |
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194 // End of file |