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annotate OrthancServer/Search/Compatibility/DatabaseLookup.cpp @ 3053:3f986ce336c8 db-changes

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working on Compatibility::DatabaseLookup
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 20 Dec 2018 17:59:16 +0100
parents c7db469bbe8e
children 3638de45a08c
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2018 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU General Public License as
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9 * published by the Free Software Foundation, either version 3 of the
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10 * License, or (at your option) any later version.
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11 *
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12 * In addition, as a special exception, the copyright holders of this
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13 * program give permission to link the code of its release with the
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14 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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15 * that use the same license as the "OpenSSL" library), and distribute
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16 * the linked executables. You must obey the GNU General Public License
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17 * in all respects for all of the code used other than "OpenSSL". If you
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18 * modify file(s) with this exception, you may extend this exception to
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19 * your version of the file(s), but you are not obligated to do so. If
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20 * you do not wish to do so, delete this exception statement from your
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21 * version. If you delete this exception statement from all source files
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22 * in the program, then also delete it here.
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23 *
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24 * This program is distributed in the hope that it will be useful, but
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25 * WITHOUT ANY WARRANTY; without even the implied warranty of
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26 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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27 * General Public License for more details.
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28 *
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29 * You should have received a copy of the GNU General Public License
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30 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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31 **/
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32
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33
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34 #include "../../PrecompiledHeadersServer.h"
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35 #include "DatabaseLookup.h"
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36
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37 #include "SetOfResources.h"
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38 #include "../../../Core/OrthancException.h"
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39
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40 namespace Orthanc
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41 {
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42 namespace Compatibility
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43 {
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44 static void ApplyLevel(SetOfResources& candidates,
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45 const std::vector<DatabaseConstraint>& lookup,
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46 ResourceType level)
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47 {
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48 std::vector<DatabaseConstraint> identifiers;
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49
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50 for (size_t i = 0; i < lookup.size(); i++)
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51 {
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52 if (lookup[i].GetLevel() == level &&
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53 lookup[i].IsIdentifier())
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54 {
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55 identifiers.push_back(lookup[i]);
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56 }
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57 }
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58 }
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59
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60
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61 static std::string GetOneInstance(IDatabaseWrapper& database,
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62 int64_t resource,
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63 ResourceType level)
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64 {
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65 for (int i = level; i < ResourceType_Instance; i++)
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66 {
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67 assert(database.GetResourceType(resource) == static_cast<ResourceType>(i));
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68
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69 std::list<int64_t> children;
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70 database.GetChildrenInternalId(children, resource);
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71
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72 if (children.size() == 0)
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73 {
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74 throw OrthancException(ErrorCode_Database);
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75 }
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76
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77 resource = children.front();
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78 }
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79
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80 return database.GetPublicId(resource);
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81 }
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82
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83
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84 void DatabaseLookup::ApplyLookupResources(std::vector<std::string>& resourcesId,
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85 std::vector<std::string>* instancesId,
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86 const std::vector<DatabaseConstraint>& lookup,
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87 ResourceType queryLevel,
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88 size_t limit)
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89 {
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90 // This is a re-implementation of
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91 // "../../../Resources/Graveyard/DatabaseOptimizations/LookupResource.cpp"
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92
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93 assert(ResourceType_Patient < ResourceType_Study &&
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94 ResourceType_Study < ResourceType_Series &&
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95 ResourceType_Series < ResourceType_Instance);
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96
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97 ResourceType upperLevel = queryLevel;
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98 ResourceType lowerLevel = queryLevel;
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99
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100 for (size_t i = 0; i < lookup.size(); i++)
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101 {
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102 ResourceType level = lookup[i].GetLevel();
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103
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104 if (level < upperLevel)
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105 {
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106 upperLevel = level;
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107 }
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108
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109 if (level > lowerLevel)
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110 {
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111 lowerLevel = level;
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112 }
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113 }
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114
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115 assert(upperLevel <= queryLevel &&
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116 queryLevel <= lowerLevel);
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117
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118 SetOfResources candidates(database_, upperLevel);
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119
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120 for (int level = upperLevel; level <= lowerLevel; level++)
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121 {
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122 ApplyLevel(candidates, lookup, static_cast<ResourceType>(level));
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123
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124 if (level != lowerLevel)
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125 {
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126 candidates.GoDown();
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127 }
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128 }
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129
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130 std::list<int64_t> resources;
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131 candidates.Flatten(resources);
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132
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133 // Climb up, up to queryLevel
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134
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135 for (int level = lowerLevel; level > queryLevel; level--)
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136 {
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137 std::list<int64_t> parents;
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138 for (std::list<int64_t>::const_iterator
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139 it = resources.begin(); it != resources.end(); ++it)
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140 {
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141 int64_t parent;
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142 if (database_.LookupParent(parent, *it))
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143 {
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144 parents.push_back(parent);
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145 }
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146 }
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147
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148 resources.swap(parents);
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149 }
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150
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151 // Apply the limit, if given
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152
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153 if (limit != 0 &&
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154 resources.size() > limit)
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155 {
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156 resources.resize(limit);
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157 }
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158
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159 // Get the public ID of all the selected resources
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160
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161 resourcesId.resize(resources.size());
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162
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163 if (instancesId != NULL)
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164 {
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165 instancesId->resize(resources.size());
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166 }
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167
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168 size_t pos = 0;
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169
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170 for (std::list<int64_t>::const_iterator
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171 it = resources.begin(); it != resources.end(); ++it, pos++)
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172 {
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173 assert(database_.GetResourceType(*it) == queryLevel);
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174
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175 resourcesId[pos] = database_.GetPublicId(*it);
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176
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177 if (instancesId != NULL)
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178 {
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179 // Collect one child instance for each of the selected resources
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180 if (queryLevel == ResourceType_Instance)
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181 {
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182 (*instancesId) [pos] = resourcesId[pos];
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183 }
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184 else
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185 {
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186 (*instancesId) [pos] = GetOneInstance(database_, *it, queryLevel);
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187 }
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188 }
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189 }
3052
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190 }
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191 }
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192 }