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annotate OrthancServer/Sources/OrthancRestApi/OrthancRestChanges.cpp @ 5640:f7adfb22e20e

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updated copyright, as Orthanc Team now replaces Osimis
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 30 May 2024 21:19:57 +0200
parents 48b8dae6dc77
children 3765085693e5
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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) 2017-2023 Osimis S.A., Belgium
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6 * Copyright (C) 2024-2024 Orthanc Team SRL, Belgium
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7 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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8 *
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9 * This program is free software: you can redistribute it and/or
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10 * modify it under the terms of the GNU General Public License as
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11 * published by the Free Software Foundation, either version 3 of the
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12 * License, or (at your option) any later version.
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13 *
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14 * This program is distributed in the hope that it will be useful, but
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15 * WITHOUT ANY WARRANTY; without even the implied warranty of
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16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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17 * General Public License for more details.
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18 *
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19 * You should have received a copy of the GNU General Public License
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20 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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21 **/
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22
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23
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24 #include "../PrecompiledHeadersServer.h"
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25 #include "OrthancRestApi.h"
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26
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27 #include "../ServerContext.h"
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28
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29 namespace Orthanc
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30 {
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31 // Changes API --------------------------------------------------------------
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32
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33 static void GetSinceAndLimit(int64_t& since,
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34 unsigned int& limit,
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35 bool& last,
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36 const RestApiGetCall& call)
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37 {
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38 static const unsigned int DEFAULT_LIMIT = 100;
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39
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40 if (call.HasArgument("last"))
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41 {
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42 last = true;
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43 return;
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44 }
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45
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46 last = false;
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48 try
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49 {
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50 since = boost::lexical_cast<int64_t>(call.GetArgument("since", "0"));
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51 limit = boost::lexical_cast<unsigned int>(call.GetArgument("limit", boost::lexical_cast<std::string>(DEFAULT_LIMIT)));
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52 }
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53 catch (boost::bad_lexical_cast&)
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54 {
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55 since = 0;
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56 limit = DEFAULT_LIMIT;
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57 return;
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58 }
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59 }
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60
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61 static void GetChanges(RestApiGetCall& call)
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62 {
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63 if (call.IsDocumentation())
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64 {
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65 call.GetDocumentation()
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66 .SetTag("Tracking changes")
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67 .SetSummary("List changes")
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68 .SetDescription("Whenever Orthanc receives a new DICOM instance, this event is recorded in the so-called _Changes Log_. This enables remote scripts to react to the arrival of new DICOM resources. A typical application is auto-routing, where an external script waits for a new DICOM instance to arrive into Orthanc, then forward this instance to another modality.")
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69 .SetHttpGetArgument("limit", RestApiCallDocumentation::Type_Number, "Limit the number of results", false)
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70 .SetHttpGetArgument("since", RestApiCallDocumentation::Type_Number, "Show only the resources since the provided index", false)
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71 .AddAnswerType(MimeType_Json, "The list of changes")
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72 .SetAnswerField("Changes", RestApiCallDocumentation::Type_JsonListOfObjects, "The individual changes")
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73 .SetAnswerField("Done", RestApiCallDocumentation::Type_Boolean,
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74 "Whether the last reported change is the last of the full history")
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75 .SetAnswerField("Last", RestApiCallDocumentation::Type_Number,
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76 "The index of the last reported change, can be used for the `since` argument in subsequent calls to this route")
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77 .SetHttpGetSample("https://orthanc.uclouvain.be/demo/changes?since=0&limit=2", true);
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78 return;
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79 }
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80
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81 ServerContext& context = OrthancRestApi::GetContext(call);
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82
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83 //std::string filter = GetArgument(getArguments, "filter", "");
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84 int64_t since;
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85 unsigned int limit;
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86 bool last;
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87 GetSinceAndLimit(since, limit, last, call);
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88
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89 Json::Value result;
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90 if (last)
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91 {
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92 context.GetIndex().GetLastChange(result);
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93 }
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94 else
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95 {
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96 context.GetIndex().GetChanges(result, since, limit);
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97 }
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98
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99 call.GetOutput().AnswerJson(result);
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100 }
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101
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102
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103 static void DeleteChanges(RestApiDeleteCall& call)
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104 {
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105 if (call.IsDocumentation())
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106 {
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107 call.GetDocumentation()
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108 .SetTag("Tracking changes")
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109 .SetSummary("Clear changes")
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110 .SetDescription("Clear the full history stored in the changes log");
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111 return;
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112 }
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113
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114 OrthancRestApi::GetIndex(call).DeleteChanges();
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115 call.GetOutput().AnswerBuffer("", MimeType_PlainText);
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116 }
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117
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118
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119 // Exports API --------------------------------------------------------------
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120
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121 static void GetExports(RestApiGetCall& call)
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122 {
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123 if (call.IsDocumentation())
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124 {
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125 call.GetDocumentation()
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126 .SetTag("Tracking changes")
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127 .SetSummary("List exports")
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128 .SetDescription("For medical traceability, Orthanc can be configured to store a log of all the resources "
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129 "that have been exported to remote modalities. In auto-routing scenarios, it is important "
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130 "to prevent this log to grow indefinitely as incoming instances are routed. You can either "
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131 "disable this logging by setting the option `LogExportedResources` to `false` in the "
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132 "configuration file, or periodically clear this log by `DELETE`-ing this URI. This route "
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133 "might be removed in future versions of Orthanc.")
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134 .SetHttpGetArgument("limit", RestApiCallDocumentation::Type_Number, "Limit the number of results", false)
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135 .SetHttpGetArgument("since", RestApiCallDocumentation::Type_Number, "Show only the resources since the provided index", false)
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136 .AddAnswerType(MimeType_Json, "The list of exports");
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137 return;
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138 }
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139
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140 ServerContext& context = OrthancRestApi::GetContext(call);
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141
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142 int64_t since;
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143 unsigned int limit;
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144 bool last;
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145 GetSinceAndLimit(since, limit, last, call);
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146
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147 Json::Value result;
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148 if (last)
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149 {
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150 context.GetIndex().GetLastExportedResource(result);
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151 }
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152 else
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153 {
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154 context.GetIndex().GetExportedResources(result, since, limit);
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155 }
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156
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157 call.GetOutput().AnswerJson(result);
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158 }
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159
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160
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161 static void DeleteExports(RestApiDeleteCall& call)
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162 {
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163 if (call.IsDocumentation())
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164 {
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165 call.GetDocumentation()
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166 .SetTag("Tracking changes")
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167 .SetSummary("Clear exports")
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168 .SetDescription("Clear the full history stored in the exports log");
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169 return;
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170 }
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171
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172 OrthancRestApi::GetIndex(call).DeleteExportedResources();
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173 call.GetOutput().AnswerBuffer("", MimeType_PlainText);
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174 }
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175
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176
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177 void OrthancRestApi::RegisterChanges()
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178 {
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179 Register("/changes", GetChanges);
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180 Register("/changes", DeleteChanges);
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181 Register("/exports", GetExports);
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182 Register("/exports", DeleteExports);
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183 }
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184 }