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1 /**
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2 * Palantir - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012 Medical Physics Department, CHU of Liege,
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4 * Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful, but
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12 * WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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14 * General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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18 **/
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19
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20
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21 #include "PalantirInitialization.h"
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22
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23 #include "../Core/PalantirException.h"
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24 #include "../Core/Toolbox.h"
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25
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26 #include <boost/lexical_cast.hpp>
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27 #include <boost/filesystem.hpp>
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28 #include <curl/curl.h>
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29 #include <boost/thread.hpp>
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30
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31 namespace Palantir
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32 {
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33 static const char* CONFIGURATION_FILE = "Configuration.json";
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34
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35 static boost::mutex globalMutex_;
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36 static std::auto_ptr<Json::Value> configuration_;
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37
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38
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39 static void ReadGlobalConfiguration(const char* configurationFile)
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40 {
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41 configuration_.reset(new Json::Value);
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42
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43 std::string content;
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44
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45 if (configurationFile)
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46 {
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47 Toolbox::ReadFile(content, configurationFile);
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48 }
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49 else
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50 {
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19
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51 try
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52 {
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53 #if PALANTIR_STANDALONE == 0
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54 boost::filesystem::path p = PALANTIR_PATH;
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55 p /= "Resources";
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56 p /= CONFIGURATION_FILE;
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57 Toolbox::ReadFile(content, p.string());
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58 #else
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19
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59 Toolbox::ReadFile(content, CONFIGURATION_FILE);
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0
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60 #endif
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19
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61 }
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62 catch (PalantirException&)
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63 {
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64 // No configuration file found, give up with empty configuration
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65 return;
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66 }
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0
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67 }
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68
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69 Json::Reader reader;
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70 if (!reader.parse(content, *configuration_))
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71 {
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72 throw PalantirException("Unable to read the configuration file");
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73 }
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74 }
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75
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76
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77 void PalantirInitialize(const char* configurationFile)
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78 {
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79 boost::mutex::scoped_lock lock(globalMutex_);
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80 ReadGlobalConfiguration(configurationFile);
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81 curl_global_init(CURL_GLOBAL_ALL);
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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 void PalantirFinalize()
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87 {
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88 boost::mutex::scoped_lock lock(globalMutex_);
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89 curl_global_cleanup();
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90 configuration_.reset(NULL);
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91 }
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92
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93
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94
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95 std::string GetGlobalStringParameter(const std::string& parameter,
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96 const std::string& defaultValue)
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97 {
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98 boost::mutex::scoped_lock lock(globalMutex_);
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99
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100 if (configuration_->isMember(parameter))
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101 {
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102 return (*configuration_) [parameter].asString();
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103 }
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104 else
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105 {
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106 return defaultValue;
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107 }
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108 }
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109
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110
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111 int GetGlobalIntegerParameter(const std::string& parameter,
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112 int defaultValue)
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113 {
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114 boost::mutex::scoped_lock lock(globalMutex_);
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115
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116 if (configuration_->isMember(parameter))
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117 {
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118 return (*configuration_) [parameter].asInt();
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119 }
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120 else
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121 {
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122 return defaultValue;
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123 }
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124 }
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125
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23
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126 bool GetGlobalBoolParameter(const std::string& parameter,
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127 bool defaultValue)
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128 {
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129 boost::mutex::scoped_lock lock(globalMutex_);
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130
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131 if (configuration_->isMember(parameter))
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132 {
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133 return (*configuration_) [parameter].asBool();
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134 }
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135 else
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136 {
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137 return defaultValue;
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138 }
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139 }
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140
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141
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0
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142
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143
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144 void GetDicomModality(const std::string& name,
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145 std::string& aet,
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146 std::string& address,
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147 int& port)
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148 {
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149 boost::mutex::scoped_lock lock(globalMutex_);
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150
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151 if (!configuration_->isMember("DicomModalities"))
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152 {
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153 throw PalantirException("");
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154 }
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155
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156 const Json::Value& modalities = (*configuration_) ["DicomModalities"];
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157 if (modalities.type() != Json::objectValue ||
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158 !modalities.isMember(name))
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159 {
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160 throw PalantirException("");
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161 }
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162
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163 try
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164 {
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165 aet = modalities[name].get(0u, "").asString();
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166 address = modalities[name].get(1u, "").asString();
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167 port = modalities[name].get(2u, "").asInt();
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168 }
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169 catch (...)
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170 {
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171 throw PalantirException("Badly formatted DICOM modality");
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172 }
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173 }
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174
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175
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176
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177 void GetListOfDicomModalities(std::set<std::string>& target)
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178 {
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179 boost::mutex::scoped_lock lock(globalMutex_);
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180
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181 target.clear();
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182
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183 if (!configuration_->isMember("DicomModalities"))
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184 {
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185 return;
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186 }
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187
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188 const Json::Value& modalities = (*configuration_) ["DicomModalities"];
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189 if (modalities.type() != Json::objectValue)
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190 {
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191 throw PalantirException("Badly formatted list of DICOM modalities");
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192 }
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193
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194 Json::Value::Members members = modalities.getMemberNames();
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195 for (size_t i = 0; i < members.size(); i++)
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196 {
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197 for (size_t j = 0; j < members[i].size(); j++)
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198 {
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199 if (!isalnum(members[i][j]) && members[i][j] != '-')
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200 {
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201 throw PalantirException("Only alphanumeric and dash characters are allowed in the names of the modalities");
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202 }
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203 }
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204
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205 target.insert(members[i]);
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206 }
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207 }
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208 }
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